diff --git a/dash-spv/Cargo.toml b/dash-spv/Cargo.toml
index c6cf1f2b5..5890b9fe9 100644
--- a/dash-spv/Cargo.toml
+++ b/dash-spv/Cargo.toml
@@ -51,6 +51,10 @@ rayon = { workspace = true }
 tempfile = { version = "3.0", optional = true }
 dashcore-rpc = { path = "../rpc-client", optional = true }
 
+[build-dependencies]
+serde = { workspace = true, features = ["std", "derive"] }
+serde_json = "1.0"
+
 [dev-dependencies]
 bincode = { workspace = true }
 dash-spv = { path = ".", features = ["test-utils"] }
@@ -70,6 +74,10 @@ harness = false
 name = "dash-spv"
 path = "src/main.rs"
 
+[[bin]]
+name = "generate-checkpoints"
+path = "src/bin/generate_checkpoints.rs"
+
 [lib]
 name = "dash_spv"
 path = "src/lib.rs"
diff --git a/dash-spv/build.rs b/dash-spv/build.rs
index 464e7d330..374574af3 100644
--- a/dash-spv/build.rs
+++ b/dash-spv/build.rs
@@ -1,5 +1,8 @@
+use std::path::PathBuf;
 use std::process::Command;
 
+use serde::Deserialize;
+
 fn git(args: &[&str]) -> Option<String> {
     let output = Command::new("git").args(args).output().ok()?;
     if !output.status.success() {
@@ -13,7 +16,62 @@ fn git(args: &[&str]) -> Option<String> {
     }
 }
 
+#[derive(Deserialize)]
+struct Checkpoint {
+    height: u32,
+    headers: Vec<Header>,
+}
+
+#[derive(Deserialize)]
+struct Header {
+    version: i32,
+    prev_blockhash: String,
+    merkle_root: String,
+    time: u32,
+    bits: u32,
+    nonce: u32,
+}
+
+/// Hashes are displayed byte-reversed, as in block explorers.
+fn hash_bytes(hex: &str) -> Vec<u8> {
+    assert_eq!(hex.len(), 64, "hash {hex} is not 32 bytes");
+    let mut bytes: Vec<u8> = (0..64)
+        .step_by(2)
+        .map(|i| u8::from_str_radix(&hex[i..i + 2], 16).expect("hash must be hex"))
+        .collect();
+    bytes.reverse();
+    bytes
+}
+
+/// Encodes `checkpoints/<network>.json` into the consensus format the crate embeds.
+fn encode_checkpoints(network: &str) {
+    let json = format!("checkpoints/{network}.json");
+    println!("cargo:rerun-if-changed={json}");
+
+    let checkpoints: Vec<Checkpoint> =
+        serde_json::from_slice(&std::fs::read(&json).unwrap()).unwrap();
+
+    let mut bytes = Vec::new();
+    for checkpoint in checkpoints {
+        bytes.extend(checkpoint.height.to_le_bytes());
+        for header in checkpoint.headers {
+            bytes.extend(header.version.to_le_bytes());
+            bytes.extend(hash_bytes(&header.prev_blockhash));
+            bytes.extend(hash_bytes(&header.merkle_root));
+            bytes.extend(header.time.to_le_bytes());
+            bytes.extend(header.bits.to_le_bytes());
+            bytes.extend(header.nonce.to_le_bytes());
+        }
+    }
+
+    let out = PathBuf::from(std::env::var("OUT_DIR").unwrap());
+    std::fs::write(out.join(format!("{network}.checkpoints")), bytes).unwrap();
+}
+
 fn main() {
+    encode_checkpoints("mainnet");
+    encode_checkpoints("testnet");
+
     let hash = git(&["rev-parse", "--short=12", "HEAD"]).unwrap_or_default();
     let tagged = git(&["describe", "--exact-match", "--tags", "--match", "v*", "HEAD"]).is_some();
 
diff --git a/dash-spv/checkpoints/mainnet.json b/dash-spv/checkpoints/mainnet.json
new file mode 100644
index 000000000..f2bfca09b
--- /dev/null
+++ b/dash-spv/checkpoints/mainnet.json
@@ -0,0 +1,10457 @@
+[
+  {
+    "height": 50000,
+    "headers": [
+      {
+        "version": 2,
+        "prev_blockhash": "0000000000496efc523b51fe46eb03fd9d961f49a7d0b56ca444f3fb30acbe3e",
+        "merkle_root": "f1b49af00635f63068d33bb3d8adc425d557bf5804b11fcc7e3e19e75de6b2e8",
+        "time": 1397298949,
+        "bits": 461290561,
+        "nonce": 1212376
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "0000000000235e635737cdcfb196029cb1d1146da5d73acf1cb3e7949a4c4501",
+        "merkle_root": "707bb665ebce2c73fad83ea57ca20f758a1f5346d71868d53cfa860659a76937",
+        "time": 1397299038,
+        "bits": 469796176,
+        "nonce": 1436814960
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000000d12dde8de84e12b5238a7e7d97c8ee926579e5c6f04ab9bf87091",
+        "merkle_root": "cba3c31a0bfd08e64b15dd3407a41a370fb1afa0009ee36a814759059699fcf1",
+        "time": 1397299130,
+        "bits": 469796101,
+        "nonce": 113313664
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "000000000011e722d2e9b907030c0a84d1a5fffc9d24a3f3bd8d2f52a22d389e",
+        "merkle_root": "6ed640004fc0b4f105a1396f289c8bebfe23c40f64f4593207855ffc58a23717",
+        "time": 1397299256,
+        "bits": 469796866,
+        "nonce": 5781834
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000001a42d7001ecc44a29c80cd9d71a951cd8c9116f89c680b0ed9db22",
+        "merkle_root": "fdfaf1884ed52fd2594a1ab601b8016c23a3347b0c24f1c80e700aa43f516842",
+        "time": 1397299490,
+        "bits": 469797868,
+        "nonce": 1555109408
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "0000000000455dd0b756277d94f7221db98bb75d9f13edf68578fbfe4393b852",
+        "merkle_root": "e6aacb7a2b329cd1f069355187fe11276dae07c612251915d45cc2ec67f64607",
+        "time": 1397299595,
+        "bits": 469795897,
+        "nonce": 1389829
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "0000000000054b73df02aae3557db673991d91572aa9f29e88a62ab2d358d536",
+        "merkle_root": "9b96a1cfdd1261cc8c2280ccb64a8fc56603fb73daaf7a8dbba2e36230260ce5",
+        "time": 1397299645,
+        "bits": 469794816,
+        "nonce": 4377965
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000004e024e6a9665c6984084db185f113669f3c03cc4ee364d48c84c4b",
+        "merkle_root": "fd684e61cd2c659c9b4fe94ed27a1793141917f6348f425b1c4ac2a5b0b69833",
+        "time": 1397299705,
+        "bits": 461262539,
+        "nonce": 1567820
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "0000000000018fe872c72e7d648f226906bfadcb2a6dfdaa701d1d5fbe43f0c8",
+        "merkle_root": "6859bdc12d1c9a40fd4bbb80ef49ab1af30109c9d5c7d7e75b645ff50950aa5e",
+        "time": 1397299767,
+        "bits": 469795333,
+        "nonce": 3228341
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "000000000078f1c5e653477e605de62e3ec22b7dcc73a2f8175bca022dc88ddb",
+        "merkle_root": "4065e405ace4c991269a0f512e7be8a8fd4c85d3b41a30f09d87b852e995b311",
+        "time": 1397299896,
+        "bits": 469796451,
+        "nonce": 7520420
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000003db5a0194d42e82773538c517c75f520e13aaaaf3b290a9c6130eb",
+        "merkle_root": "ec9cbe95ad8543f640fa534ca8d726d2eaf68b23df28b0746da7789557619417",
+        "time": 1397300027,
+        "bits": 469797229,
+        "nonce": 1599800552
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000003d6075885b1d60e1a3c1b700478a3f46a8640be094afaabfd0824e",
+        "merkle_root": "7900bea70629443bbf3902f5d171e64caa3ea110b04cb02a2b98d5c0b1e35a32",
+        "time": 1397300076,
+        "bits": 469797096,
+        "nonce": 1878978
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000003189e923a8eb1e70233b5398c5df746998075b7e3a633e97f6ead2",
+        "merkle_root": "724bc27aca157a621ef1d45881918d5683af41be63410f1eed0cdf0504bb6c6c",
+        "time": 1397300327,
+        "bits": 469797817,
+        "nonce": 908692
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000004c3abbeff2fc1300b8d56c9d5abdd715c1a5ae5a8c6066fc2acd38",
+        "merkle_root": "a099197f538ddf82425e036608c3cbae8704fd2b922c538e09f34267a7c07d89",
+        "time": 1397300424,
+        "bits": 469801399,
+        "nonce": 11328437
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "000000000005e1c5306e40ea90539a2e255016bd474fca3130131dcb936f2b8d",
+        "merkle_root": "d15fab433ba36a5ad3b456a5382cdbf08f41411acdf5eafe1a89707408a6068b",
+        "time": 1397300506,
+        "bits": 469797594,
+        "nonce": 3717835
+      },
+      {
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+        "time": 1397300802,
+        "bits": 460243480,
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+      },
+      {
+        "version": 2,
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+        "merkle_root": "c9b6adfe6b09e3a88ab75f446b4c7fd2ec294329bc51b9ae5b89ce5d2695ac69",
+        "time": 1397300821,
+        "bits": 460766172,
+        "nonce": 410830
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "000000000061f8cf193364e2faff5387c9cff2da74cb5c51b9528ebc1771082b",
+        "merkle_root": "87f42165fe8176b3ccdff9c65cf96be7c710060a0a083e43abe7dcc33997f297",
+        "time": 1397301014,
+        "bits": 460461527,
+        "nonce": 15250925
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000002e9b6e8ae4f4e4318c4672e8fd09ecb317c81b860aebe88867c525",
+        "merkle_root": "b724b64eaa8eabf726435df311450aaab29ccffa85a94a4c14cbd2feb94a4c7a",
+        "time": 1397301070,
+        "bits": 460612804,
+        "nonce": 4588236
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000000a5e32702f54c344d96c015959152bf7ca4a0652174449d6eac893",
+        "merkle_root": "8ca88d3f6414b715176ea97492dc88b299068e155e59d2af121b176269c9b7be",
+        "time": 1397301112,
+        "bits": 460281145,
+        "nonce": 1895420
+      },
+      {
+        "version": 2,
+        "prev_blockhash": "00000000000bda1fd80cd74515920d3a1d8b35c461cb3b4ea3be76cb1dd8b9a1",
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+        "time": 1397301191,
+        "bits": 459689461,
+        "nonce": 8525158
+      },
+      {
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+        "prev_blockhash": "000000000056b96d4de5e8f8da63c43f88a76bc8845d5cd28f81072e88b14f6f",
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+        "time": 1397301195,
+        "bits": 459557648,
+        "nonce": 514466
+      },
+      {
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+        "time": 1397301217,
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+      },
+      {
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+        "prev_blockhash": "000000000018692f3cd1e6255d9aa3edc427101e02da940f6e6673823118f016",
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+        "time": 1397301768,
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+      },
+      {
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+        "prev_blockhash": "000000000014f796bbd2312686a63cbe17401a1026ab2a8149b74553e8dcb96d",
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+        "time": 1397301812,
+        "bits": 460165462,
+        "nonce": 520751520
+      }
+    ]
+  },
+  {
+    "height": 100000,
+    "headers": [
+      {
+        "version": 2,
+        "prev_blockhash": "00000000000f918880ca49e9def5764be8f348110e9e7f8d786a97dd9a2d3394",
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diff --git a/dash-spv/checkpoints/testnet.json b/dash-spv/checkpoints/testnet.json
new file mode 100644
index 000000000..c8b533b35
--- /dev/null
+++ b/dash-spv/checkpoints/testnet.json
@@ -0,0 +1,6357 @@
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+        "time": 1788897215,
+        "bits": 503357022,
+        "nonce": 889763
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "00000080d6d44609a6bda5fcbdb69716afd82974a7f3dd514ca1b71699a91336",
+        "merkle_root": "49749b7c79393b7f8e96f09249866579b01f65c787a8d7abde839cc177ec4768",
+        "time": 1788897295,
+        "bits": 503354198,
+        "nonce": 495560
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "00000026821b56ecf35e0e614ade73ce5649b78f6f7bc5d673ea23128d96275e",
+        "merkle_root": "452e3170e1a0d6a5197470d50c2e36e96e12843be58aa4ce61c162ac889ebd6a",
+        "time": 1788897345,
+        "bits": 503354958,
+        "nonce": 736354
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000007f5e60a15be1fa84d8bfeb3eb8d78528b99cc88f0a100939a87c3a3517",
+        "merkle_root": "e3466d7f37777d553bc78cd742a8e51ca3810051b6d64e0aee4a9f9a0c8ffb5a",
+        "time": 1788897388,
+        "bits": 503353414,
+        "nonce": 4027586048
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "00000028ff8840e1aec49f972f646429fb35ed7ead86ea2ec00a8c2f8254d99c",
+        "merkle_root": "9ed6bd31e550f5ef0a8b763e486030c523ef5901a556a6158f3b18311b6c83c1",
+        "time": 1788897482,
+        "bits": 503352265,
+        "nonce": 692225
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000004d1bda7e632de1ab66524ffe4d02861d3c6e17e4c556871500cb642192",
+        "merkle_root": "1da88de9b1e13367050d49030b4815d0065668c9d560d2deb901352c49d7c5e6",
+        "time": 1788897539,
+        "bits": 503351766,
+        "nonce": 770170
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "000000225d02788dede0879c2b92554ac75478b15792c45e6a1ed0db19afcf7c",
+        "merkle_root": "423f7d5d07ea4e68931923d9a6fb3471875ba6691a15068af7655a041e05dbfb",
+        "time": 1788897558,
+        "bits": 493953545,
+        "nonce": 686587
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "000000299ca8ae56fbee359c85a4b2322e441bedc9447e5b58fc44d0b4cfb535",
+        "merkle_root": "7cd340e668ac04489bb0984868f41ea10333ec847624d3ac747e08b1446303c6",
+        "time": 1788897814,
+        "bits": 493806457,
+        "nonce": 621017
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "000000664e57b1b5b036ede53e27e00f00962abe55d92d52994e6cd64af10a12",
+        "merkle_root": "77326994d425fb8f8ed8ff2bdb8f2af78d269207d6f6ae7595b66f2206d7dce5",
+        "time": 1788897892,
+        "bits": 493823981,
+        "nonce": 276012
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000006a4f67fa39adc7bd1c1a6c0d441492e0e824a2f815fadfa7a4f2621ca8",
+        "merkle_root": "7e61d3852eb98ebb41cdf4c3530dc3913d90168d25c0d1cd25e1dea81d85c9cc",
+        "time": 1788898522,
+        "bits": 503601039,
+        "nonce": 108564
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000027180c2174cc0a58265412772c6351e813fab4bd6e204803dca1e9a24b9",
+        "merkle_root": "18cfd028dc15a7d78b64a19730c82d5791a0e3ea68b5d8a77cfb1b320ae17b52",
+        "time": 1788898739,
+        "bits": 503364346,
+        "nonce": 653711
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000009579545d5f061da676b70d94429cc4722381292b8bf267e19a0de15572",
+        "merkle_root": "ace631c6fbf5f4bb98d667a10ded6842747fc0602dc212bd737d489253a0641f",
+        "time": 1788898767,
+        "bits": 503358504,
+        "nonce": 257481
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000002d0c9f18e4214a61abe5c68189f2216b47900f0f1daaac7615b79fc429",
+        "merkle_root": "2b9f4cacee1614df78ba5fd77ab4d149b02bf9458aebc67300a4796fb91aae30",
+        "time": 1788898933,
+        "bits": 503357150,
+        "nonce": 793116
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000001f1b960e57e87d10deb75742bcedb7b28b2b76c08ce86eeac7af595596",
+        "merkle_root": "faade4b70fc97654b1b9d49c67693534c67fe622dd98c05f1e96e584b15e51a9",
+        "time": 1788899081,
+        "bits": 503359317,
+        "nonce": 1841759232
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "0000008515f1e63983d1dadf9b36fad3f5428ffb7883364ad22e1ce11499ad44",
+        "merkle_root": "e82c730afb206776104b1318dede3219fac2da2e19a17757ec264ff1da693a4b",
+        "time": 1788899095,
+        "bits": 503353189,
+        "nonce": 2322599936
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "00000044d5e2b7bc98335c11b58f947a7ab68f399c575bb053d80814b1d823cd",
+        "merkle_root": "327ef5701c02217e17d5c22efae69488d72e7395f64c801736c24fc6b585b17b",
+        "time": 1788899538,
+        "bits": 503352461,
+        "nonce": 4035184384
+      },
+      {
+        "version": 536870912,
+        "prev_blockhash": "000000148dc221a96193f24b238fe38fe96be69cef9eae4c73a75c018c990c12",
+        "merkle_root": "a776666e3eb90a0d1a38cf68070aae77067add7fdc6c97b4418112d021e45b0a",
+        "time": 1788899589,
+        "bits": 503358347,
+        "nonce": 623856
+      }
+    ]
+  }
+]
diff --git a/dash-spv/src/bin/generate_checkpoints.rs b/dash-spv/src/bin/generate_checkpoints.rs
new file mode 100644
index 000000000..d19d4b7fd
--- /dev/null
+++ b/dash-spv/src/bin/generate_checkpoints.rs
@@ -0,0 +1,151 @@
+//! Generate the checkpoints embedded in `dash-spv` from the network.
+//!
+//! Syncs the block headers of a network from genesis without a wallet, then writes a
+//! checkpoint every `--interval` blocks, each validated, to `checkpoints/<network>.json`.
+//!
+//! ```bash
+//! cargo run --release -p dash-spv --bin generate-checkpoints -- -n mainnet -d <dir>
+//! cargo run --release -p dash-spv --bin generate-checkpoints -- -n testnet -d <dir>
+//! ```
+//!
+//! Running again with the same `<dir>` resumes the sync from where it stopped.
+
+use std::path::PathBuf;
+use std::sync::Arc;
+
+use clap::{Parser, ValueEnum};
+use dash_spv::chain::checkpoints::CHECKPOINT_HEADERS;
+use dash_spv::chain::Checkpoint;
+use dash_spv::network::PeerNetworkManager;
+use dash_spv::sync::SyncEvent;
+use dash_spv::validation::{BlockHeaderValidator, Validator};
+use dash_spv::{
+    init_console_logging, ClientConfig, DashSpvClient, EventHandler, LevelFilter, Network,
+};
+use key_wallet::wallet::managed_wallet_info::ManagedWalletInfo;
+use key_wallet_manager::WalletManager;
+use tokio::sync::{Notify, RwLock};
+
+#[derive(Clone, Copy, Debug, ValueEnum)]
+enum NetworkArg {
+    Mainnet,
+    Testnet,
+}
+
+impl From<NetworkArg> for Network {
+    fn from(arg: NetworkArg) -> Self {
+        match arg {
+            NetworkArg::Mainnet => Network::Mainnet,
+            NetworkArg::Testnet => Network::Testnet,
+        }
+    }
+}
+
+#[derive(Parser, Debug)]
+#[command(about = "Generate the checkpoints embedded in dash-spv from the network")]
+struct Args {
+    /// Network to generate the checkpoints of
+    #[arg(short, long, value_enum)]
+    network: NetworkArg,
+
+    /// Storage directory for the header sync, kept so a later run resumes from it
+    #[arg(short, long, value_name = "PATH")]
+    data_dir: PathBuf,
+
+    /// File to write the checkpoints to, `checkpoints/<network>.json` by default
+    #[arg(short, long, value_name = "PATH")]
+    output: Option<PathBuf>,
+
+    /// Blocks between two checkpoints
+    #[arg(long, default_value = "50000")]
+    interval: u32,
+
+    /// Blocks a checkpoint must be below the tip
+    #[arg(long, default_value = "1000")]
+    min_depth: u32,
+}
+
+/// Wakes the generator once the block headers are synced.
+struct HeadersSynced(Arc<Notify>);
+
+impl EventHandler for HeadersSynced {
+    fn on_sync_event(&self, event: &SyncEvent) {
+        if let SyncEvent::BlockHeaderSyncComplete {
+            ..
+        } = event
+        {
+            self.0.notify_one();
+        }
+    }
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let args = Args::parse();
+    let network: Network = args.network.into();
+    let _logging_guard = init_console_logging(LevelFilter::INFO)?;
+
+    let mut config = ClientConfig::new(network)
+        .with_storage_path(args.data_dir)
+        .without_filters()
+        .without_masternodes();
+    config.enable_mempool_tracking = false;
+    // From genesis: checkpoints must not come from the checkpoints they replace.
+    config.start_from_height = Some(0);
+
+    let network_manager = PeerNetworkManager::new(&config).await?;
+    let wallet = Arc::new(RwLock::new(WalletManager::<ManagedWalletInfo>::new(network)));
+    let synced = Arc::new(Notify::new());
+    let client = DashSpvClient::new(
+        config,
+        network_manager,
+        wallet,
+        vec![Arc::new(HeadersSynced(synced.clone()))],
+    )
+    .await?;
+
+    client.run().await?;
+    synced.notified().await;
+    client.stop().await;
+
+    let tip = client.tip_header().await.ok_or("no headers synced")?.height();
+    tracing::info!("Headers synced up to {}", tip);
+
+    let mut checkpoints = Vec::new();
+    let last = tip.saturating_sub(args.min_depth);
+
+    for height in (args.interval..=last).step_by(args.interval as usize) {
+        let mut headers = Vec::with_capacity(CHECKPOINT_HEADERS);
+        for h in height + 1 - CHECKPOINT_HEADERS as u32..=height {
+            headers.push(client.header_at(h).await?.ok_or(format!("header {h} not stored"))?);
+        }
+
+        BlockHeaderValidator::new()
+            .validate(&headers)
+            .map_err(|e| format!("checkpoint {height} is invalid: {e}"))?;
+
+        let checkpoint = Checkpoint::new(height, headers)
+            .ok_or(format!("checkpoint {height} does not fit its headers"))?;
+
+        checkpoints.push(serde_json::json!({
+            "height": checkpoint.height(),
+            "headers": checkpoint.headers().iter().map(|h| h.header()).collect::<Vec<_>>(),
+        }));
+    }
+
+    let output = args.output.unwrap_or_else(|| {
+        PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+            .join("checkpoints")
+            .join(format!("{}.json", network))
+    });
+    std::fs::write(&output, serde_json::to_string_pretty(&checkpoints)? + "\n")?;
+
+    tracing::info!(
+        "Wrote {} checkpoints up to {} to {}",
+        checkpoints.len(),
+        last,
+        output.display()
+    );
+
+    Ok(())
+}
diff --git a/dash-spv/src/chain/checkpoint_test.rs b/dash-spv/src/chain/checkpoint_test.rs
deleted file mode 100644
index f7d2d9268..000000000
--- a/dash-spv/src/chain/checkpoint_test.rs
+++ /dev/null
@@ -1,182 +0,0 @@
-//! Comprehensive tests for checkpoint functionality
-
-#[cfg(test)]
-mod tests {
-    use super::super::checkpoints::*;
-    use dashcore::BlockHash;
-
-    #[test]
-    fn test_wallet_creation_time_checkpoint_selection() {
-        let checkpoints =
-            [1500000000, 1600000000, 1700000000, 1800000000].map(Checkpoint::dummy).to_vec();
-
-        let manager = CheckpointManager::new(checkpoints);
-
-        // Test wallet created in 2019
-        let wallet_time_2019 = 1550000000;
-        let checkpoint = manager.get_sync_checkpoint(Some(wallet_time_2019));
-        assert_eq!(checkpoint.unwrap().height, 1500000000);
-
-        // Test wallet created in 2022
-        let wallet_time_2022 = 1650000000;
-        let checkpoint = manager.get_sync_checkpoint(Some(wallet_time_2022));
-        assert_eq!(checkpoint.unwrap().height, 1600000000);
-
-        // Test wallet created before any checkpoint - should return None
-        let wallet_time_ancient = 0;
-        let checkpoint = manager.get_sync_checkpoint(Some(wallet_time_ancient));
-        assert!(checkpoint.is_none());
-
-        // Test no wallet creation time (should use latest)
-        let checkpoint = manager.get_sync_checkpoint(None);
-        assert_eq!(checkpoint.unwrap().height, 1800000000);
-    }
-
-    #[test]
-    fn test_fork_rejection_logic() {
-        let checkpoints =
-            vec![Checkpoint::dummy(0), Checkpoint::dummy(100000), Checkpoint::dummy(200000)];
-
-        let manager = CheckpointManager::new(checkpoints.clone());
-
-        // Should reject forks before or at last checkpoint
-        assert!(manager.should_reject_fork(0));
-        assert!(manager.should_reject_fork(50000));
-        assert!(manager.should_reject_fork(100000));
-        assert!(manager.should_reject_fork(200000));
-
-        // Should not reject forks after last checkpoint
-        assert!(!manager.should_reject_fork(200001));
-        assert!(!manager.should_reject_fork(300000));
-    }
-
-    #[test]
-    fn test_checkpoint_protocol_version_extraction() {
-        let mut checkpoint = Checkpoint::dummy(100000);
-
-        // Test with masternode list name
-        checkpoint.masternode_list_name = Some("ML100000__70227".to_string());
-        assert_eq!(checkpoint.protocol_version(), Some(70227));
-
-        // Test with explicit protocol version (should take precedence)
-        checkpoint.protocol_version = Some(70230);
-        assert_eq!(checkpoint.protocol_version(), Some(70230));
-
-        // Test with invalid masternode list format
-        checkpoint.protocol_version = None;
-        checkpoint.masternode_list_name = Some("ML100000_invalid".to_string());
-        assert_eq!(checkpoint.protocol_version(), None);
-
-        // Test with no masternode list
-        checkpoint.masternode_list_name = None;
-        assert_eq!(checkpoint.protocol_version(), None);
-    }
-
-    #[test]
-    fn test_checkpoint_binary_search_efficiency() {
-        // Create many checkpoints to test binary search
-        let checkpoints = [0, 100, 5000, 90000, 999000, 1000000].map(Checkpoint::dummy).to_vec();
-
-        let manager = CheckpointManager::new(checkpoints.clone());
-
-        // Test various heights
-        assert_eq!(manager.last_checkpoint_before_height(0).unwrap().height, 0);
-        assert_eq!(manager.last_checkpoint_before_height(5500).unwrap().height, 5000);
-        assert_eq!(manager.last_checkpoint_before_height(999999).unwrap().height, 999000);
-
-        // Test edge case: height before first checkpoint
-        assert!(manager.last_checkpoint_before_height(0).is_some());
-    }
-
-    #[test]
-    fn test_empty_checkpoint_manager() {
-        let manager = CheckpointManager::new(vec![]);
-
-        assert!(manager.get_checkpoint(0).is_none());
-        assert!(manager.last_checkpoint().is_none());
-        assert!(manager.last_checkpoint_before_height(100000).is_none());
-        assert!(manager.last_checkpoint_before_timestamp(1700000000).is_none());
-        assert!(manager.checkpoint_heights().is_empty());
-        assert!(!manager.should_reject_fork(100000));
-    }
-
-    #[test]
-    fn test_checkpoint_validation_edge_cases() {
-        let checkpoints = vec![Checkpoint::dummy(100000)];
-        let manager = CheckpointManager::new(checkpoints.clone());
-
-        let correct_hash = manager.get_checkpoint(100000).unwrap().block_hash;
-        let wrong_hash = BlockHash::from([0u8; 32]);
-
-        // Test validation at checkpoint height
-        assert!(manager.validate_block(100000, &correct_hash));
-        assert!(!manager.validate_block(100000, &wrong_hash));
-
-        // Test validation at non-checkpoint height (should always pass)
-        assert!(manager.validate_block(99999, &wrong_hash));
-        assert!(manager.validate_block(100001, &wrong_hash));
-    }
-
-    #[test]
-    fn test_checkpoint_sorting_and_lookup() {
-        // Create checkpoints in random order
-        let checkpoints = vec![
-            Checkpoint::dummy(200000),
-            Checkpoint::dummy(0),
-            Checkpoint::dummy(300000),
-            Checkpoint::dummy(100000),
-        ];
-
-        let manager = CheckpointManager::new(checkpoints.clone());
-
-        // Verify heights are sorted
-        let heights = manager.checkpoint_heights();
-        assert_eq!(heights, &[0, 100000, 200000, 300000]);
-
-        // Verify lookups work correctly
-        assert_eq!(manager.get_checkpoint(0).unwrap().height, 0);
-        assert_eq!(manager.get_checkpoint(100000).unwrap().height, 100000);
-        assert_eq!(manager.get_checkpoint(200000).unwrap().height, 200000);
-        assert_eq!(manager.get_checkpoint(300000).unwrap().height, 300000);
-    }
-
-    #[test]
-    fn test_mainnet_checkpoint_consistency() {
-        let checkpoints = mainnet_checkpoints();
-        let manager = CheckpointManager::new(checkpoints.clone());
-
-        // Verify all checkpoints are properly ordered
-        let heights = manager.checkpoint_heights();
-        for i in 1..heights.len() {
-            assert!(heights[i] > heights[i - 1], "Checkpoints not in ascending order");
-        }
-
-        // Verify all checkpoints have valid data
-        for checkpoint in &checkpoints {
-            assert!(checkpoint.timestamp > 0);
-            assert!(checkpoint.nonce > 0);
-            assert!(!checkpoint.chain_work.is_empty());
-
-            if checkpoint.height > 0 {
-                assert_ne!(checkpoint.prev_blockhash, BlockHash::from([0u8; 32]));
-            }
-        }
-    }
-
-    #[test]
-    fn test_testnet_checkpoint_consistency() {
-        let checkpoints = testnet_checkpoints();
-        let manager = CheckpointManager::new(checkpoints.clone());
-
-        // Similar validations as mainnet
-        let heights = manager.checkpoint_heights();
-        for i in 1..heights.len() {
-            assert!(heights[i] > heights[i - 1]);
-        }
-
-        for checkpoint in &checkpoints {
-            assert!(checkpoint.timestamp > 0);
-            assert!(!checkpoint.chain_work.is_empty());
-        }
-    }
-}
diff --git a/dash-spv/src/chain/checkpoints.rs b/dash-spv/src/chain/checkpoints.rs
index 2b24470f6..e3871e4c9 100644
--- a/dash-spv/src/chain/checkpoints.rs
+++ b/dash-spv/src/chain/checkpoints.rs
@@ -1,1330 +1,262 @@
-//! Checkpoint system for chain validation and sync optimization
+//! Checkpoints are known blocks a client can start syncing from instead of genesis.
 //!
-//! Checkpoints are hardcoded blocks at specific heights that help:
-//! - Prevent accepting blocks from invalid chains
-//! - Optimize initial sync by starting from recent checkpoints
-//! - Protect against deep reorganizations
-//! - Bootstrap masternode lists at specific heights
-
-use dashcore::{BlockHash, CompactTarget, Network, Target};
-use dashcore_hashes::Hash;
-use serde::{Deserialize, Serialize};
-use std::collections::HashMap;
-
-/// A checkpoint representing a known valid block
-#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+//! Each checkpoint holds its block header and the [`CHECKPOINT_HEADERS`] - 1 headers before
+//! it, so the difficulty of the blocks after it can be checked from the first one on. The
+//! checkpoints of mainnet and testnet are generated from the network by the
+//! `generate-checkpoints` binary into `checkpoints/<network>.json`, which `build.rs` encodes
+//! for embedding.
+
+use std::collections::BTreeMap;
+use std::io::{Read, Write};
+use std::sync::LazyLock;
+
+use dashcore::block::Header;
+use dashcore::consensus::{encode, Decodable, Encodable};
+use dashcore::{BlockHash, Network};
+
+use crate::types::HashedBlockHeader;
+
+/// Headers each checkpoint holds, the checkpoint block last.
+pub const CHECKPOINT_HEADERS: usize = 25;
+
+const MAINNET_CHECKPOINTS: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/mainnet.checkpoints"));
+const TESTNET_CHECKPOINTS: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/testnet.checkpoints"));
+
+// The embedded files are decoded and validated by the tests.
+static MAINNET: LazyLock<CheckpointManager> = LazyLock::new(|| {
+    CheckpointManager::new(
+        decode_checkpoints(MAINNET_CHECKPOINTS).expect("embedded checkpoints must decode"),
+    )
+});
+static TESTNET: LazyLock<CheckpointManager> = LazyLock::new(|| {
+    CheckpointManager::new(
+        decode_checkpoints(TESTNET_CHECKPOINTS).expect("embedded checkpoints must decode"),
+    )
+});
+static NO_CHECKPOINTS: CheckpointManager = CheckpointManager {
+    checkpoints: BTreeMap::new(),
+};
+
+/// A known block and the [`CHECKPOINT_HEADERS`] - 1 headers before it.
+#[derive(Debug, Clone)]
 pub struct Checkpoint {
-    /// Block height
-    pub height: u32,
-    /// Block hash
-    pub block_hash: BlockHash,
-    /// Previous block hash
-    pub prev_blockhash: BlockHash,
-    /// Block timestamp
-    pub timestamp: u32,
-    /// Difficulty target
-    pub target: Target,
-    /// Merkle root (optional for older checkpoints)
-    pub merkle_root: Option<BlockHash>,
-    /// Cumulative chain work up to this block (as hex string)
-    pub chain_work: String,
-    /// Masternode list identifier (e.g., "ML1088640__70218")
-    pub masternode_list_name: Option<String>,
-    /// Protocol version at this checkpoint
-    pub protocol_version: Option<u32>,
-    /// Nonce value for the block
-    pub nonce: u32,
+    height: u32,
+    headers: Vec<HashedBlockHeader>,
 }
 
 impl Checkpoint {
-    /// Extract protocol version from masternode list name or use stored value
-    pub fn protocol_version(&self) -> Option<u32> {
-        // Prefer explicitly stored protocol version
-        if let Some(version) = self.protocol_version {
-            return Some(version);
-        }
-
-        // Otherwise extract from masternode list name
-        self.masternode_list_name.as_ref().and_then(|name| {
-            // Format: "ML{height}__{protocol_version}"
-            name.split("__").nth(1).and_then(|s| s.parse().ok())
+    /// A checkpoint at `height` from `headers`, the last of which is the block at `height`.
+    ///
+    /// Returns `None` unless there are exactly [`CHECKPOINT_HEADERS`] headers that fit
+    /// below `height`.
+    pub fn new(height: u32, headers: Vec<HashedBlockHeader>) -> Option<Self> {
+        let fits = headers.len() == CHECKPOINT_HEADERS && height >= CHECKPOINT_HEADERS as u32 - 1;
+
+        fits.then_some(Self {
+            height,
+            headers,
         })
     }
 
-    /// Check if this checkpoint has an associated masternode list
-    pub fn has_masternode_list(&self) -> bool {
-        self.masternode_list_name.is_some()
+    /// Height of the checkpoint block.
+    pub fn height(&self) -> u32 {
+        self.height
     }
-}
-
-/// Manages checkpoints for a specific network
-pub struct CheckpointManager {
-    /// Checkpoints indexed by height
-    checkpoints: HashMap<u32, Checkpoint>,
-    /// Sorted list of checkpoint heights for efficient searching
-    sorted_heights: Vec<u32>,
-}
 
-impl CheckpointManager {
-    /// Create a checkpoint manager seeded with the hardcoded checkpoints for `network`.
-    ///
-    /// Networks without bundled checkpoints (devnet, regtest) yield an empty manager.
-    pub fn for_network(network: Network) -> Self {
-        let checkpoints = match network {
-            Network::Mainnet => mainnet_checkpoints(),
-            Network::Testnet => testnet_checkpoints(),
-            _ => vec![],
-        };
-        Self::new(checkpoints)
+    /// Hash of the checkpoint block.
+    pub fn hash(&self) -> &BlockHash {
+        self.header().hash()
     }
 
-    /// Create a new checkpoint manager from a list of checkpoints
-    pub fn new(checkpoints: Vec<Checkpoint>) -> Self {
-        let mut checkpoint_map = HashMap::new();
-        let mut heights = Vec::new();
-
-        for checkpoint in checkpoints {
-            heights.push(checkpoint.height);
-            checkpoint_map.insert(checkpoint.height, checkpoint);
-        }
-
-        heights.sort_unstable();
-
-        Self {
-            checkpoints: checkpoint_map,
-            sorted_heights: heights,
-        }
+    /// Header of the checkpoint block.
+    pub fn header(&self) -> &HashedBlockHeader {
+        &self.headers[CHECKPOINT_HEADERS - 1]
     }
 
-    /// Get a checkpoint at a specific height
-    pub fn get_checkpoint(&self, height: u32) -> Option<&Checkpoint> {
-        self.checkpoints.get(&height)
+    /// All the headers of the checkpoint, oldest first, from [`Self::start_height`].
+    pub fn headers(&self) -> &[HashedBlockHeader] {
+        &self.headers
     }
 
-    /// Check if a block hash matches the checkpoint at the given height
-    pub fn validate_block(&self, height: u32, block_hash: &BlockHash) -> bool {
-        match self.checkpoints.get(&height) {
-            Some(checkpoint) => checkpoint.block_hash == *block_hash,
-            None => true, // No checkpoint at this height, so it's valid
-        }
+    /// Height of the first of [`Self::headers`].
+    pub fn start_height(&self) -> u32 {
+        self.height - (CHECKPOINT_HEADERS as u32 - 1)
     }
+}
 
-    /// Get the last checkpoint at or before the given height
-    pub fn last_checkpoint_before_height(&self, height: u32) -> Option<&Checkpoint> {
-        // Binary search for the highest checkpoint <= height
-        let pos = self.sorted_heights.partition_point(|&h| h <= height);
-        if pos > 0 {
-            let checkpoint_height = self.sorted_heights[pos - 1];
-            self.checkpoints.get(&checkpoint_height)
-        } else {
-            None
+impl Encodable for Checkpoint {
+    fn consensus_encode<W: Write + ?Sized>(&self, writer: &mut W) -> Result<usize, std::io::Error> {
+        let mut len = self.height.consensus_encode(writer)?;
+        for header in &self.headers {
+            len += header.header().consensus_encode(writer)?;
         }
+        Ok(len)
     }
+}
 
-    /// Get the last checkpoint
-    pub fn last_checkpoint(&self) -> Option<&Checkpoint> {
-        self.sorted_heights.last().and_then(|&height| self.checkpoints.get(&height))
-    }
+impl Decodable for Checkpoint {
+    fn consensus_decode<R: Read + ?Sized>(reader: &mut R) -> Result<Self, encode::Error> {
+        let height = u32::consensus_decode(reader)?;
+        let headers = (0..CHECKPOINT_HEADERS)
+            .map(|_| Header::consensus_decode(reader).map(HashedBlockHeader::from))
+            .collect::<Result<Vec<_>, _>>()?;
 
-    /// Get all checkpoint heights
-    pub fn checkpoint_heights(&self) -> &[u32] {
-        &self.sorted_heights
+        Self::new(height, headers)
+            .ok_or(encode::Error::ParseFailed("checkpoint height below its headers"))
     }
+}
 
-    /// Get the last checkpoint before a given timestamp
-    pub fn last_checkpoint_before_timestamp(&self, timestamp: u32) -> Option<&Checkpoint> {
-        let mut best_checkpoint = None;
-        let mut best_height = 0;
-
-        for checkpoint in self.checkpoints.values() {
-            if checkpoint.timestamp <= timestamp && checkpoint.height >= best_height {
-                best_height = checkpoint.height;
-                best_checkpoint = Some(checkpoint);
-            }
-        }
-
-        best_checkpoint
+/// Decode the checkpoints encoded one after another in `bytes`.
+fn decode_checkpoints(mut bytes: &[u8]) -> Result<Vec<Checkpoint>, encode::Error> {
+    let mut checkpoints = Vec::new();
+    while !bytes.is_empty() {
+        checkpoints.push(Checkpoint::consensus_decode(&mut bytes)?);
     }
+    Ok(checkpoints)
+}
 
-    /// Get the checkpoint to use for sync chain based on override settings
-    pub fn get_sync_checkpoint(&self, wallet_creation_time: Option<u32>) -> Option<&Checkpoint> {
-        // Default to checkpoint based on wallet creation time
-        if let Some(creation_time) = wallet_creation_time {
-            self.last_checkpoint_before_timestamp(creation_time)
-        } else {
-            self.last_checkpoint()
+/// The checkpoints of a network, by height.
+pub struct CheckpointManager {
+    checkpoints: BTreeMap<u32, Checkpoint>,
+}
+
+impl CheckpointManager {
+    /// The checkpoints embedded for `network`. Networks without any (devnet, regtest)
+    /// have none.
+    pub fn for_network(network: Network) -> &'static Self {
+        match network {
+            Network::Mainnet => &MAINNET,
+            Network::Testnet => &TESTNET,
+            _ => &NO_CHECKPOINTS,
         }
     }
 
-    /// Check if a fork at the given height should be rejected due to checkpoint
-    pub fn should_reject_fork(&self, fork_height: u32) -> bool {
-        if let Some(last_checkpoint) = self.last_checkpoint() {
-            fork_height <= last_checkpoint.height
-        } else {
-            false
+    fn new(checkpoints: Vec<Checkpoint>) -> Self {
+        Self {
+            checkpoints: checkpoints
+                .into_iter()
+                .map(|checkpoint| (checkpoint.height(), checkpoint))
+                .collect(),
         }
     }
-}
-
-/// Create mainnet checkpoints (every 50k blocks)
-pub fn mainnet_checkpoints() -> Vec<Checkpoint> {
-    vec![
-        // Height 0 (genesis)
-        create_checkpoint(
-            0,
-            "00000ffd590b1485b3caadc19b22e6379c733355108f107a430458cdf3407ab6",
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            1390095618,
-            0x1e0ffff0,
-            "0x0000000000000000000000000000000000000000000000000000000100010001",
-            "e0028eb9648db56b1ac77cf090b99048a8007e2bb64b68f092c03c7f56a662c7",
-            28917698,
-            None,
-        ),
-        // Height 50000
-        create_checkpoint(
-            50000,
-            "00000000000fa6230896498b3cc6f1015456b4512452ead9979f6b43ca0a74dc",
-            "000000000014f796bbd2312686a63cbe17401a1026ab2a8149b74553e8dcb96d",
-            1397301812,
-            0x1b6d9156,
-            "0x000000000000000000000000000000000000000000000000009e8bb39c2d0ade",
-            "c13fc482603f574b7322da10398c20d64a431e14f8e886b054128591abaa66a4",
-            520751520,
-            None,
-        ),
-        // Height 100000
-        create_checkpoint(
-            100000,
-            "00000000000fd08c2fb661d2fcb0d49abb3a91e5f27082ce64feed3b4dede2e2",
-            "0000000000108d4b9231f4ec99ab5dc970b6ec740745f44eee0754f67d598ac3",
-            1405041879,
-            0x1b10cf42,
-            "0x000000000000000000000000000000000000000000000000085f62fd3b71c941",
-            "43eb305e7a85ec9d27b3724dab6b2ede5111d54f4568a03d4181231fbd356e81",
-            5628506,
-            None,
-        ),
-        // Height 150000
-        create_checkpoint(
-            150000,
-            "00000000001a638399d396fd77b833d422e42b82b85e92b264804a68d82569be",
-            "000000000010995886d1fbb284e7f383a0c351644df43974e35af4167f067ff3",
-            1412903320,
-            0x1b1b0a30,
-            "0x0000000000000000000000000000000000000000000000001281d4edaf4a006c",
-            "961e888c28957017afea6fe4bc37a36ed974a5259ae71c9bb00fd7dbe9da2547",
-            764289,
-            None,
-        ),
-        // Height 200000
-        create_checkpoint(
-            200000,
-            "000000000004d0615ff622ec78457ca211dc63fc9c62cca9d9d9af7206be721b",
-            "000000000003db5e449f132e46ad1b63147419893261206f09647d7b13ab3a7e",
-            1420768974,
-            0x1b18bce4,
-            "0x0000000000000000000000000000000000000000000000001ba6853108391ec2",
-            "2084deba9f11ce0485cb3483f776cf5a401a614800f0e6d2c98d37be199ec8ef",
-            1190452988,
-            None,
-        ),
-        // Height 250000
-        create_checkpoint(
-            250000,
-            "0000000000016fafd7a2ddeee3f13381ba8ada0847ccd6934b091af9199d8333",
-            "0000000000098f98d582a9233760cd3ace33700103e66b1d641a5a3951f9b4f0",
-            1428659404,
-            0x1b1458a0,
-            "0x00000000000000000000000000000000000000000000000026573119fed7fd09",
-            "a1567a707cd6e0afc11956f141f36207ec0ed4cd6c46b7a5a72488c7318de2e2",
-            5907593,
-            None,
-        ),
-        // Height 300000
-        create_checkpoint(
-            300000,
-            "00000000001336c23d1be41cfe2ea9ca3e907e918ae4292bd357d2672e572372",
-            "000000000008b8c4e86d070a78c978957ae7f0f127ff91aae6e4b0964c92d0b5",
-            1436534243,
-            0x1b1bd0ca,
-            "0x0000000000000000000000000000000000000000000000002ef0a87a1e226a98",
-            "392f661aad4c9cce80abd1cc4091c279bc9b6a117b056f89d12ee4032bfd1152",
-            2130020,
-            None,
-        ),
-        // Height 350000
-        create_checkpoint(
-            350000,
-            "0000000000023443fb0eb86ba80ead7f5dccee1b4de661505f4b513dbd8393f0",
-            "000000000022ec883b6048f84303288825449c95310a95c087047e4f25d7bd94",
-            1444408229,
-            0x1b26657b,
-            "0x000000000000000000000000000000000000000000000000363c4f4ad9856d1d",
-            "29a1145e3f4238a99419df706b5969d11af4fe8932ebece6306029f20f7005c7",
-            636401,
-            None,
-        ),
-        // Height 400000
-        create_checkpoint(
-            400000,
-            "00000000000132b9afeca5e9a2fdf4477338df6dcff1342300240bc70397c4bb",
-            "0000000000058f1afc49ee27334f3198e72f5390f1dac1d549823ec70a6902aa",
-            1452288263,
-            0x1b0d642e,
-            "0x00000000000000000000000000000000000000000000000040252b2b3b38ca28",
-            "043dda83285fae26de9a97331f617392261c77495debe97b7e18b1faf38d1ef8",
-            2093330011,
-            None,
-        ),
-        // Height 450000
-        create_checkpoint(
-            450000,
-            "00000000001bae23a2caec59af5b118cf0a4f19fd2bc06a99703b40eb62ce198",
-            "0000000000009baf7e89a9df022262fbee32f5476539c2b3487f939c2f73e6bd",
-            1460172189,
-            0x1b1d316f,
-            "0x0000000000000000000000000000000000000000000000004b4d34ac5c236db0",
-            "604ac7c7e4496439f8edf05d2dc70d8cb4393dbbd0aec8f3f2dce308c9b8eb42",
-            3626003768,
-            None,
-        ),
-        // Height 500000
-        create_checkpoint(
-            500000,
-            "000000000002be1cff717f4aa6efc504fa06dc9c453c83773de0b712b8690b7d",
-            "0000000000015d3004c48bab6b6907099322abd46630e5753d1ab483cb5bd4c2",
-            1468042975,
-            0x1b06a6cf,
-            "0x0000000000000000000000000000000000000000000000006609142fb25f3515",
-            "9d0ee1ce292af212d2f864482faff376b81a20c72c256c053d870e064c919de4",
-            3708765744,
-            None,
-        ),
-        // Height 550000
-        create_checkpoint(
-            550000,
-            "00000000000145f80d65784631c043629ada6d4b9840bc9073a25edb64e2a57e",
-            "00000000000121cb9c14a520a7eaef5d17af02f4a19f02616fea9dfc1dd4c83b",
-            1475917900,
-            0x1b026a9a,
-            "0x000000000000000000000000000000000000000000000000b1fcb4e6449e3c9a",
-            "075c87c4b8cbbcd687477091262e91d53d4ad8d21816db7959128220accfb2e8",
-            2815965478,
-            None,
-        ),
-        // Height 600000
-        create_checkpoint(
-            600000,
-            "000000000000a0b730b5be60e65b4a730d1fdcf1d023c9e42c0e5bf4a059f709",
-            "000000000000c53bf17a98b9ee042d6d4c3faf37d7a9f5c1335cce6df896f2f4",
-            1483795508,
-            0x1b00db54,
-            "0x0000000000000000000000000000000000000000000000014711b6a853f7dd94",
-            "747ecbd3efc83dfe8616702ed0e38ac6e775405a695e1e6563852aa88196cdc1",
-            1156122803,
-            None,
-        ),
-        // Height 650000
-        create_checkpoint(
-            650000,
-            "00000000000064250561577321ea54efed4090c1903533275fc8422a9ecc94bd",
-            "000000000000763942dffb88e320e987e4f76e1e9696613ecd98c3e3f04d0017",
-            1491673696,
-            0x1b0093a7,
-            "0x0000000000000000000000000000000000000000000000025ab5b2bf0de575d7",
-            "3bb2779dc2c38874a247931105ecd017547940ea1b4d678ff45026444abd9f70",
-            2030197219,
-            None,
-        ),
-        // Height 700000
-        create_checkpoint(
-            700000,
-            "00000000000002958852d255726d695ecccfbfacfac318a9d0ebc558eecefeb9",
-            "0000000000000a0875b818744234ec2b172cc09dc9106b95b51962355724f991",
-            1499552504,
-            0x1a37e005,
-            "0x0000000000000000000000000000000000000000000000043fa186270b24e45e",
-            "be1663670e873e6062682b531b53d64c2687f0dfb154b90511f04a18d76aeb36",
-            3949087571,
-            None,
-        ),
-        // Height 750000
-        create_checkpoint(
-            750000,
-            "00000000000000b4181bbbdddbae464ce11fede5d0292fb63fdede1e7c8ab21c",
-            "00000000000001e115237541be8dd91bce2653edd712429d11371842f85bd3e1",
-            1491953700,
-            0x1a075a02,
-            "0x00000000000000000000000000000000000000000000000485f01ee9f01ee9f8",
-            "0ce99835e2de1240e230b5075024817aace2b03b3944967a88af079744d0aa62",
-            2199533779,
-            None,
-        ),
-        // Height 800000
-        create_checkpoint(
-            800000,
-            "000000000000002a702916db91213077926866437a6b63e90548af03647d5df3",
-            "000000000000000d643aeccde9a27588cb0e4020b61724596101a390ff99903b",
-            1515298907,
-            0x193a412a,
-            "0x00000000000000000000000000000000000000000000024db269cc7723ab75d2",
-            "6dc210d5f659c91bb59e37abc2a390553775349042556fc91cf619458b34b1fc",
-            3771637584,
-            None,
-        ),
-        // Height 850000
-        create_checkpoint(
-            850000,
-            "000000000000003053911f63ae6c1fe8a8872c43127211977e6efb4a3f621dcd",
-            "000000000000004b97a9fb739d94936af7ee735d820c040934a2cb72c85d9b37",
-            1523178072,
-            0x194e75e3,
-            "0x0000000000000000000000000000000000000000000005c9d39f6df1150b0865",
-            "f16c4c180c06ad6fdb5cc8a3d9465579534ccd8a860622c9e3dfb491ca5d5465",
-            1385755477,
-            None,
-        ),
-        // Height 900000
-        create_checkpoint(
-            900000,
-            "000000000000001eedab948c433a50b1131a8e15c8c2beef4be237701feff7b5",
-            "0000000000000006c34f0d3f0082d2ecb2d169d7f4e7643253ab8b2f50e2ad2c",
-            1531055382,
-            0x1945cebc,
-            "0x0000000000000000000000000000000000000000000008a8ae840f52917fa49d",
-            "aa456191ee81220dec399bc9e987f3d4c2e5eae8bc753e7fbdc474ed8ff17a92",
-            1104778391,
-            None,
-        ),
-        // Height 950000
-        create_checkpoint(
-            950000,
-            "000000000000000c82074fb1b5ea1bf5702d37cad61fa7d83d3bf857743d521c",
-            "00000000000000016c22b714f6564976959f5a9e124c7908c2dbb41590056a3e",
-            1538933769,
-            0x193d069b,
-            "0x000000000000000000000000000000000000000000000b6708fbb60b9e112ee9",
-            "7bbbd59162d5e3d703c1c792ed965edea248fefca3b5fb901cab17343bc4809e",
-            717106593,
-            None,
-        ),
-        // Height 1000000
-        create_checkpoint(
-            1000000,
-            "000000000000000c9167ee9675411440e10e9adbc21fb57b88879fc293e9d494",
-            "000000000000004938f58e52d616a27e8d841fc854e6c7fd68620c112ef2ec14",
-            1546810296,
-            0x194a441c,
-            "0x000000000000000000000000000000000000000000000f06009e8ebc22f41596",
-            "9ef887178b96765b5da30e363e5b8719199ba695d09b5e9da69b10a6251a5c59",
-            493527692,
-            None,
-        ),
-        // Height 1050000
-        create_checkpoint(
-            1050000,
-            "0000000000000011d8327712a3936f51e3c62a704653e334e9d936f5600b4b5f",
-            "0000000000000010f2fa75b89df70c0e2279b4de2e06b9647b3f747ac9d71fd7",
-            1554685961,
-            0x19211821,
-            "0x000000000000000000000000000000000000000000001297e05e023938ada826",
-            "e065bad4d946953d062e074d4b37db60f1f181ad6f5de86890e5a0d4e966b121",
-            1133505366,
-            None,
-        ),
-        // Height 1100000
-        create_checkpoint(
-            1100000,
-            "00000000000000190560ed4b128c156e489fdbe0814bf62c8ab53ab3259d7908",
-            "000000000000000089d2938df30be807844feea4c3340ad32873bb1b692b7f1a",
-            1562561033,
-            0x191a9f05,
-            "0x0000000000000000000000000000000000000000000017ffbd499dd0911202a4",
-            "b42a23b668751fa8239b736c63c8529ead78df579ed85389f6db7ddbc736fa48",
-            1054993736,
-            None,
-        ),
-        // Height 1150000
-        create_checkpoint(
-            1150000,
-            "00000000000000049f1acd8bce9c689c5b08a24f48cf25b4c5635eca9b008184",
-            "000000000000001928bff43b5ed5141a1952df4e46f44b14b8e9abe8356e214c",
-            1570440452,
-            0x191ae531,
-            "0x000000000000000000000000000000000000000000001e3bf45c399e920ca531",
-            "566c67a44062c06b9811472b14d6f7c8923a85da992dd6e8206be6a2f14f1f19",
-            1371468868,
-            None,
-        ),
-        // Height 1200000
-        create_checkpoint(
-            1200000,
-            "0000000000000005fbc6c64e048be7c29d43e4829f360220cededb73ce84894c",
-            "000000000000001810e1fbd864e6bd82c6c822cd330cf25e0f4479f23462687b",
-            1578321180,
-            0x191c82aa,
-            "0x0000000000000000000000000000000000000000000025480b80cfaaa03cb202",
-            "76c45ae14e68484bcd26d55cfee6155778e573c6dba4b68764189e25d50c0fe4",
-            2520260855,
-            None,
-        ),
-        // Height 1250000
-        create_checkpoint(
-            1250000,
-            "000000000000000c835b8f5af9ef1f307dd456ae0214bdae1940dce4c26036f2",
-            "0000000000000008f46c4602345a7434a0b2926b30071ff8353fbd3e19c08da6",
-            1586201239,
-            0x1915db33,
-            "0x000000000000000000000000000000000000000000002d75222a3587dc03ac58",
-            "23b3999671e4b1e87ac3a4575d90e3f60d6ed50484c1ae191e5993fb363f81e0",
-            3868270178,
-            None,
-        ),
-        // Height 1300000
-        create_checkpoint(
-            1300000,
-            "00000000000000089645b1efe2dd9220972f98221b2bb6a4b9126995ad2b211f",
-            "0000000000000007e6377a522b1c937235e63edfcca94e2043bef968e2711ef1",
-            1594082464,
-            0x191310ba,
-            "0x0000000000000000000000000000000000000000000036bfd2be720d00beef7f",
-            "5a64cdeaead928d551938f63351d965fbd5afc6e35057c2f758eb4c5cdd5c5d2",
-            626284667,
-            None,
-        ),
-        // Height 1350000
-        create_checkpoint(
-            1350000,
-            "000000000000000a1d26f616634b54485d27182a788c7b492a00c1a397686e5b",
-            "0000000000000003d3a152663bea64d0cde4449265e565f127b815af4db61302",
-            1601962865,
-            0x1910cdae,
-            "0x0000000000000000000000000000000000000000000041c0cd61bf26e84ac444",
-            "62fc325031d606004e6a6212bcfd993aaecc62f891b469795def0e294badc39e",
-            1679732855,
-            None,
-        ),
-        // Height 1400000
-        create_checkpoint(
-            1400000,
-            "0000000000000009cb41f7c4e584ecd9a8b4fbc56f68948471104b75b2685085",
-            "000000000000000d4370643c6ca45bf39a510b1713c91fbfb64fce1ef478e0a7",
-            1609844689,
-            0x190d3fbf,
-            "0x000000000000000000000000000000000000000000004be2a51a9acad8da4201",
-            "9d836d6dd9186740bbcbe79f1fe34ce6e1246346f873ddc97dbdb8d5a3728e64",
-            3787805974,
-            None,
-        ),
-        // Height 1450000
-        create_checkpoint(
-            1450000,
-            "00000000000000105cfae44a995332d8ec256850ea33a1f7b700474e3dad82bc",
-            "000000000000000623884051971ec79dd80388ec7087bd1a86cf7750a603f80a",
-            1617723659,
-            0x191a94a3,
-            "0x00000000000000000000000000000000000000000000549cd3ccb81a55892330",
-            "0db9be51684a7b842d95ffd547534602ff308b89244cd97af629a54a7faea6ce",
-            1902330899,
-            None,
-        ),
-        // Height 1500000
-        create_checkpoint(
-            1500000,
-            "0000000000000002cb2f0d030e9744cd6d93b913b80958b232e4f0b84d828ecf",
-            "0000000000000017e784aa5d0d7fe95324c374f5f3e9601ae60a42843c73b88e",
-            1625606293,
-            0x192fa83e,
-            "0x000000000000000000000000000000000000000000005cc3c1ba9c4e8e7b2a9c",
-            "a1302fd89ad90284ec2282f058018e7f567e731851a523987b8fd49437839a5c",
-            1095047868,
-            None,
-        ),
-        // Height 1550000
-        create_checkpoint(
-            1550000,
-            "00000000000000243f3a68ec1791c10ff2383d017d7e00b8b3b6a4dc7cd00000",
-            "0000000000000027068e36dd953c6cde34622a4cf4b31ccfc81ceb61a1c5ecad",
-            1633490545,
-            0x193ce2c0,
-            "0x0000000000000000000000000000000000000000000062fd591017000585dad4",
-            "29d27cd124db614a1a03d710f7449968a584e03b957aec5685167e1ccd2fa8fe",
-            1919126809,
-            None,
-        ),
-        // Height 1600000
-        create_checkpoint(
-            1600000,
-            "000000000000000dd58a1fc9f4447e1737a2c840545ece749f1a6847757468a5",
-            "000000000000001112b60a420705be4b6374d91a729589c4a77fe06749e2fbbc",
-            1641372443,
-            0x191a9cb3,
-            "0x0000000000000000000000000000000000000000000068bc95c8ef608051870c",
-            "517be14dd017698bbaaa07a4e03335efb551266780d1e3109b1233283b73c4ad",
-            3449372220,
-            None,
-        ),
-        // Height 1650000
-        create_checkpoint(
-            1650000,
-            "00000000000000106564309bba28b01ae5fd04617c016d8e91bb39d6091dc792",
-            "0000000000000005d5303abf2610d0bce84bab72b8935ca7006577e9b776405d",
-            1649256541,
-            0x191936a1,
-            "0x000000000000000000000000000000000000000000006fa58718d19c711a34c5",
-            "490eeb6bdf36941f0d4c48ded699c783032c30a098e54495af31b390bd3dc9ff",
-            2709264311,
-            None,
-        ),
-        // Height 1700000
-        create_checkpoint(
-            1700000,
-            "000000000000001d7579a371e782fd9c4480f626a62b916fa4eb97e16a49043a",
-            "000000000000001a5631d781a4be0d9cda08b470ac6f108843cedf32e4dc081e",
-            1657142113,
-            0x1927e30e,
-            "0x000000000000000000000000000000000000000000007562df93a26b81386288",
-            "dafe57cefc3bc265dfe8416e2f2e3a22af268fd587a48f36affd404bec738305",
-            3820512540,
-            Some("ML1700000__70227"),
-        ),
-        // Height 1750000
-        create_checkpoint(
-            1750000,
-            "000000000000002977769b714bd863c3e3cdb6b3f8863b4b3046c80d48ae6df5",
-            "0000000000000029a462daa181080d5dcdeae3d935b88f23e54d2c3d255a628b",
-            1665028811,
-            0x192e1547,
-            "0x0000000000000000000000000000000000000000000079528506d6c0b271ba7c",
-            "57c8c2b9c0cdcb9e7cb6b57d47010aa81b6acf5b2a104a69190ba791cffbd906",
-            809197842,
-            None,
-        ),
-        // Height 1800000
-        create_checkpoint(
-            1800000,
-            "000000000000002a19e055ca3767d6200b5b8a872e978610209721e8520c3916",
-            "0000000000000025c61a06eb7f0fe1851251b89375227092141cf8efcdd408be",
-            1672914957,
-            0x193bd692,
-            "0x000000000000000000000000000000000000000000007d7cb1cea47731190dd0",
-            "2b2d47900b904804b1498763c0fa068f1d8a93ce7ce6c799ca295c2b97cf2520",
-            66718738,
-            None,
-        ),
-        // Height 1850000
-        create_checkpoint(
-            1850000,
-            "0000000000000007c2adde99b057b14b587ee661caa165f1afdbc7c72675d294",
-            "000000000000000034b2f74d7d71b50abbf51ba231cf5e2344a8a8d1db237cfa",
-            1680802702,
-            0x19192e31,
-            "0x0000000000000000000000000000000000000000000081fde888f1304ae9ba6e",
-            "54f096482b3f181da35e87e2a44d8f1f7e95091fd574cc0534870c3dbe0f8338",
-            3850717111,
-            None,
-        ),
-        // Height 1900000
-        create_checkpoint(
-            1900000,
-            "000000000000001b8187c744355da78857cca5b9aeb665c39d12f26a0e3a9af5",
-            "000000000000000d41ff4e55f8ebc2e610ec74a0cbdd33e59ebbfeeb1f8a0a0d",
-            1688744911,
-            0x192946fd,
-            "0x000000000000000000000000000000000000000000008798ed692b94a398aa4f",
-            "3a6ff72336cf78e45b23101f755f4d7dce915b32336a8c242c33905b72b07b35",
-            498598646,
-            Some("ML1900000__70230"),
-        ),
-        // Height 1950000
-        create_checkpoint(
-            1950000,
-            "0000000000000016a5defab3019018c92f1d1d56b27328b6858eae53ac849e13",
-            "000000000000000d16a8d4b623283ee485547ad659d142271145579fed1f8b84",
-            1696625297,
-            0x193011fe,
-            "0x000000000000000000000000000000000000000000008c053476d7ff5c1b5552",
-            "9587aea5dc6bbf61c17a92cbde45fc259e6c13cdc4f8acf696df9f0034a8eb3d",
-            156225974,
-            None,
-        ),
-        // Height 2000000
-        create_checkpoint(
-            2000000,
-            "0000000000000009bd68b5e00976c3f7482d4cc12b6596614fbba5678ef13a59",
-            "000000000000001dc4e83bba91118506a4db6b9cad0dc2cbb45db216280b0632",
-            1704505832,
-            0x194c14f3,
-            "0x000000000000000000000000000000000000000000008f6a7fa300b523a90527",
-            "6538cb9636761c4a6385b245b4b330c76ba567e8797b22124a19226e359cb529",
-            3900733382,
-            None,
-        ),
-        // Height 2050000
-        create_checkpoint(
-            2050000,
-            "000000000000000680f94c4df744eb264df5a94fc406de329fbb94d54c8dc5eb",
-            "000000000000001bb4f6f5a8d7d7fc7b9bbe423d7d9fab90101b86b69be8bfd4",
-            1712376595,
-            0x19292bed,
-            "0x00000000000000000000000000000000000000000000930c0ff7ffdac6e20868",
-            "916c206ddc4d74b159ffad69675ff1f2d03c478d5ad4050836074c1a433ce6bf",
-            2687179442,
-            None,
-        ),
-        // Height 2100000
-        create_checkpoint(
-            2100000,
-            "0000000000000019c3be91021a1e70544e29d71f8f8649c93e8c8a69bfd18389",
-            "0000000000000029669685f08628a4b6b1f313dbf812653f7afa14d2cdc1ad05",
-            1720248149,
-            0x192fef50,
-            "0x00000000000000000000000000000000000000000000979c24d90ffde9e2c00e",
-            "9da012cbfb1e29a30a9bee9a7933629213a8bdbc9d3c5328b64731f3f44e2770",
-            3627813926,
-            None,
-        ),
-        // Height 2150000
-        create_checkpoint(
-            2150000,
-            "000000000000001139dcfcd14309c11b7c6abd7cb4164a68911d66127c97a726",
-            "0000000000000027a0f5fbf500517fc2423b1b41a57200c1ed3b0002cc3257bc",
-            1728118239,
-            0x192d3a1e,
-            "0x000000000000000000000000000000000000000000009c2b82dbe7896ea12ea8",
-            "91e9636c566ce42aab5e3a3729214e285dbb04f83df0260287a97f3b1fc13e87",
-            2064799150,
-            None,
-        ),
-        // Height 2200000
-        create_checkpoint(
-            2200000,
-            "000000000000001aee1132b3c4631acc76b0c575d3e86cb1d2be9160f37428dc",
-            "0000000000000004420debad28fcd907dd02b09368876a4a750fb6a582d92f00",
-            1736001490,
-            0x191c27eb,
-            "0x00000000000000000000000000000000000000000000a19c270b9a283aad9266",
-            "abcf8622f6f694e64bbe6207e77300f336ca3487f6cdde2a39193b529f5cec4b",
-            3637735728,
-            None,
-        ),
-        // Height 2250000
-        create_checkpoint(
-            2250000,
-            "00000000000000062539a6cd3adece4a10598e729ef571bfded9d4b704af69f0",
-            "00000000000000199a20834e224e585c98de1d2e1773699b2117b4dca1e57b1b",
-            1743884816,
-            0x191deb3d,
-            "0x00000000000000000000000000000000000000000000a68a1aed5e6ed9272a30",
-            "a82917470860356f1ccfccc54ef665fbc488c31f583295ade66a90668eb2ca4f",
-            3886564310,
-            None,
-        ),
-        // Height 2300000
-        create_checkpoint(
-            2300000,
-            "00000000000000186f9f2fde843be3d66b8ae317cabb7d43dbde943d02a4b4d7",
-            "000000000000000d51caa0307836ca3eabe93068a9007515ac128a43d6addd4e",
-            1751767455,
-            0x1938df46,
-            "0x00000000000000000000000000000000000000000000aa3859b6456688a3fb53",
-            "b026649607d72d486480c0cef823dba6b28d0884a0d86f5a8b9e5a7919545cef",
-            972444458,
-            Some("ML2300000__70232"),
-        ),
-        // Height 2350000
-        create_checkpoint(
-            2350000,
-            "00000000000000258216a62e8c7170be1207335474ddfa667092a71e3d4162d2",
-            "000000000000002702e07f9f3402026e4cd5707961ce54af22c873331a329708",
-            1759648416,
-            0x192f2bfb,
-            "0x00000000000000000000000000000000000000000000ada31a5dd056c969c842",
-            "3e77d2ed0c24aab79096d700cdc4fe3ea9502fcec38ee114c81c9063842a6725",
-            3635235496,
-            None,
-        ),
-        // Height 2400000
-        create_checkpoint(
-            2400000,
-            "000000000000002883c9151a37092287c1773c5a4d175a8f688373daa631f934",
-            "000000000000001d1d2f9edbd2792ebbfa001e42ff47e6ef81efeaef68df4fe7",
-            1767528049,
-            0x19377eb0,
-            "0x00000000000000000000000000000000000000000000b2955e92bc38ce3a61ed",
-            "9247dc06cf2e952b6a97d7c0057946933c1b5699ce6b76b86583775c26ae3b01",
-            3220391604,
-            None,
-        ),
-        // Height 2450000
-        create_checkpoint(
-            2450000,
-            "00000000000000074832a3ff13968b2aa0c841fcdfced9c3619257242470f25f",
-            "0000000000000023c3bd45c16e76cfe33e5cac0e3c4c392b61ee8f4e9d9e345a",
-            1775408495,
-            0x192e7792,
-            "0x00000000000000000000000000000000000000000000b716ba49112c2a375b0f",
-            "c6b4c57362b96e300b1b3ad20aa73e3fb0c40fe67049a51bd1f0b2d034bd74dc",
-            1523946232,
-            None,
-        ),
-        // Height 2500000
-        create_checkpoint(
-            2500000,
-            "000000000000000ac721a208c5efba67e76cb08796324de3519fefa32a5b2f44",
-            "000000000000003908fc91c23e32714e3d4e07254f8e2e9a0a803c12c3f11083",
-            1783288591,
-            0x193d61e0,
-            "0x00000000000000000000000000000000000000000000bb84d5645e0656eac7db",
-            "053838492199315a53ada9322184cef33c08ea4cbdc9e0a5c30a5a8857cd469e",
-            3924859976,
-            None,
-        ),
-    ]
-}
 
-/// Create testnet checkpoints (every 50k blocks)
-pub fn testnet_checkpoints() -> Vec<Checkpoint> {
-    vec![
-        // Height 0
-        create_checkpoint(
-            0,
-            "00000bafbc94add76cb75e2ec92894837288a481e5c005f6563d91623bf8bc2c",
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            1390666206,
-            0x1e0ffff0,
-            "0x0000000000000000000000000000000000000000000000000000000000100010",
-            "e0028eb9648db56b1ac77cf090b99048a8007e2bb64b68f092c03c7f56a662c7",
-            3861367235,
-            None,
-        ),
-        // Height 50000
-        create_checkpoint(
-            50000,
-            "0000000000d737f4b6f0fcd10ecd2f59e5e4f9409b1afae5fb50604510a2551f",
-            "00000000000585316c6c59a809d7bbd13cf126a1ff796613cb404dc4205afdd3",
-            1550935893,
-            0x1c00e933,
-            "0x000000000000000000000000000000000000000000000000003ce64fe7baf4a4",
-            "1564f9ced973ee81c27c4eb79c6cea9ce1d56e5f26e9dc16524cc86b246772a3",
-            2155245409,
-            None,
-        ),
-        // Height 100000
-        create_checkpoint(
-            100000,
-            "000000008650f09124958e7352f844f9c15705171ac38ee6668534c5c238b916",
-            "000000000888fc6c96350205e2399f9f1da0464448d40c50e3cb897c3e844758",
-            1558052383,
-            0x1d00968d,
-            "0x0000000000000000000000000000000000000000000000000063cf504aefbfe3",
-            "13f277df58c6bc9090a9ff9b17b810fa550d052ed77fd50bbb3cd5f9a684feac",
-            2703170280,
-            None,
-        ),
-        // Height 150000
-        create_checkpoint(
-            150000,
-            "000000000c0bf229aec2ab933a9f1b2e5a0558c2d7bbd1a31e49f2c8ee0d8cf6",
-            "00000000087fffa38794dae9df74be3f69f66029e2225ba1569fa4e478cf2698",
-            1565028909,
-            0x1c102498,
-            "0x00000000000000000000000000000000000000000000000000729d4b5e17d6e6",
-            "2213532c050ba2a2be8f22f0d565670b696c590d76928a6a5a8d40db9ba6725c",
-            1969591479,
-            None,
-        ),
-        // Height 200000
-        create_checkpoint(
-            200000,
-            "000000001015eb5ef86a8fe2b3074d947bc972c5befe32b28dd5ce915dc0d029",
-            "0000000019ba398812efbd03ae869a90bc2d6c705cc94406da2d0f6ea2c017d5",
-            1572008328,
-            0x1c1960c3,
-            "0x0000000000000000000000000000000000000000000000000098ebee572c3cd1",
-            "5a2b6f09040149f7b67f093b900b5a31545ff10f2aab6a1d0f97d4677ab6629c",
-            3181117336,
-            None,
-        ),
-        // Height 250000
-        create_checkpoint(
-            250000,
-            "00000000045c0eab2471f9332128e01b31b6f637073a25b8907f620a2b6861bd",
-            "0000000005d0ba322dfe34cf3dbdd49b01e9b9c68322e50413f73620f88c02e2",
-            1579348172,
-            0x1c2e80d7,
-            "0x00000000000000000000000000000000000000000000000000abfcc9c8b38057",
-            "a017b029f1787d279b98b989bfab97988e9be7c060f86083a6b29be68b657e96",
-            4180884762,
-            None,
-        ),
-        // Height 300000
-        create_checkpoint(
-            300000,
-            "00000059475b2de06486d86c1764ee6058b454eea72a32eb7f900aa94b9d4312",
-            "000002303d006a3b2097e927703916e8993bae7d0849fd18636908125f20225e",
-            1588424121,
-            0x1e0fffff,
-            "0x00000000000000000000000000000000000000000000000001e6f6b99adb1c2b",
-            "8e3860589c14fe23e40d3113022b72e06632434664208dcaecc7bb6383b782e5",
-            1875181696,
-            None,
-        ),
-        // Height 350000
-        create_checkpoint(
-            350000,
-            "000001945abc4914be9c46b726b0d8b5fbbc693ab36d4d538098029055c7b571",
-            "000001c7b0eedd4f98108e3bb5938bf0368ede238405d380b33dc795bebb2335",
-            1595733312,
-            0x1e021d9a,
-            "0x00000000000000000000000000000000000000000000000002239b28213deeaa",
-            "34912735bc0c9a69ca5b422bc1ad863c26477df1f013841efbd1d4c5aa05ddf1",
-            2975,
-            None,
-        ),
-        // Height 400000
-        create_checkpoint(
-            400000,
-            "00000e2d1320af3d1017af18c05f450dd7265d023d1516b24e3a8dd8a0e14a90",
-            "0000073a660f27c148b9ba64d928ed794db69292f456ce3deea143b261a22111",
-            1605654012,
-            0x1e0fffff,
-            "0x000000000000000000000000000000000000000000000000022f13342587d0ca",
-            "35d5954ea00fa59dfa43a745331d717254d747c684feaa827c538a5bfcb3d8f8",
-            30629,
-            None,
-        ),
-        // Height 450000
-        create_checkpoint(
-            450000,
-            "0000000a2a21323dd6894b44e2883716e5979203f5f663fb010ec062a7431f6b",
-            "00000009ebc0e508e55cd7c1329fa924951dc868243bfc3a09466ec0f69684b4",
-            1614003669,
-            0x1e029e5c,
-            "0x000000000000000000000000000000000000000000000000022f145128be07d5",
-            "6dfca51149c98f2d1f018d9e29d1bc888a9c7e648ec3bcf5175b088e1d90bc6d",
-            715,
-            None,
-        ),
-        // Height 500000
-        create_checkpoint(
-            500000,
-            "000000d0f2239d3ea3d1e39e624f651c5a349b5ca729eec29540aeae0ecc94a7",
-            "000001d6339e773dea2a9f1eae5e569a04963eb885008be9d553568932885745",
-            1621049765,
-            0x1e025b1b,
-            "0x000000000000000000000000000000000000000000000000022f14e45fc51a2e",
-            "618c77a7c45783f5f20e957a296e077220b50690aae51d714ae164eb8d669fdf",
-            10457,
-            None,
-        ),
-        // Height 550000
-        create_checkpoint(
-            550000,
-            "0000003707b046f374dc829a48f3f2ac2ebfac9b97127e1fb7bd35b73642e490",
-            "000001590e40546a8eebe1a5df2055bf635dac35ce89255a4ac366a010e4ed72",
-            1628063334,
-            0x1e023939,
-            "0x000000000000000000000000000000000000000000000000022f15e3a9b17ac4",
-            "fefa7652058dfd148820fff2ce6942298b2eaf222286b72195a9c186ea499453",
-            46354,
-            None,
-        ),
-        // Height 600000
-        create_checkpoint(
-            600000,
-            "000000de786e659950e0f27681faf1a91871d15de264d0b769cb5941c1d807c3",
-            "000000faf247f27dcb5d9c3cb0e16f9e806701a440bde471432f0190a4ac9fa6",
-            1635070663,
-            0x1e02040e,
-            "0x000000000000000000000000000000000000000000000000027baa2feb4b75db",
-            "615b9db7b37547f266428ab239d7f4329b5b3abda0eda4505eb38fa7d4c2b8b4",
-            19879,
-            None,
-        ),
-        // Height 650000
-        create_checkpoint(
-            650000,
-            "0000010b9de8b63935b20195f97f5e9d3bcd834342351277d0855ca9671fe078",
-            "000001a4c66e690382ba001209febd2b44911b8a0b2e91318d6dc09097aa15bd",
-            1642100742,
-            0x1e02d93e,
-            "0x000000000000000000000000000000000000000000000000027baaa828f86096",
-            "ccf49b68724b63adb7170c1b424a808e253611c83deed47908c3d8504f1e3ec6",
-            25615,
-            None,
-        ),
-        // Height 700000
-        create_checkpoint(
-            700000,
-            "0000016165b57f3561256a332ab6f5dbd43285205243cc5ec9c7d28c7defb668",
-            "0000069da97baf6bac66dc6f860121e4e0e18b3e101d0e81603e9c2d087d3518",
-            1649138427,
-            0x1e020a77,
-            "0x000000000000000000000000000000000000000000000000027bab1f909c6994",
-            "3103bed7c635c6f4a6c3ccb34c7dd042e87e1009246b19a03b47b0db586c6cef",
-            956892,
-            None,
-        ),
-        // Height 750000
-        create_checkpoint(
-            750000,
-            "00000035a4948e35f1bf7ad28f619501b95c8213f178061e7f8b43d36bcda9b6",
-            "00000251754467b97a39d02ab1112d6656b0cd93c58f44a06c237e3b7d75e51a",
-            1656190491,
-            0x1e028723,
-            "0x000000000000000000000000000000000000000000000000027bab8b7557b4d3",
-            "96bf40466d3113912b79b330952c3b2c7e1dcd2eca463940426dfbfe551c7d50",
-            291789,
-            None,
-        ),
-        // Height 800000
-        create_checkpoint(
-            800000,
-            "00000075cdfa0a552e488406074bb95d831aee16c0ec30114319a587a8a8fb0c",
-            "0000011921c298768dc2ab0f9ca5a3ff4527813bbd7cd77f45bf93efd0bb0799",
-            1671238603,
-            0x1e018b19,
-            "0x00000000000000000000000000000000000000000000000002d68bf1d7e434f6",
-            "d58300efccbace51cdf5c8a012979e310da21337a7f311b1dcea7c1c894dfb94",
-            607529,
-            None,
-        ),
-        // Height 850000
-        create_checkpoint(
-            850000,
-            "000000754e3e225b7d38d0a6b023fa51bf15ba36db4ec32d322262722418ed12",
-            "000000c757951cabcead4ec4b88182a1c96ce24c750684b720f0f984952127c4",
-            1686814109,
-            0x1e012221,
-            "0x00000000000000000000000000000000000000000000000002d68c89a0759afc",
-            "61161bc132b880bd53f190091fa9c57439a326b456ccfba52aa1158fda559a40",
-            736932,
-            None,
-        ),
-        // Height 900000
-        create_checkpoint(
-            900000,
-            "0000011764a05571e0b3963b1422a8f3771e4c0d5b72e9b8e0799aabf07d28ef",
-            "00000120ad41e5c990be3b76f8b68f1f84b0b654fb40eb95a75058ac15dee5db",
-            1698142346,
-            0x1e015ea1,
-            "0x00000000000000000000000000000000000000000000000002d68d1a5c376d46",
-            "86cb3235ebf9741a39ce85643c4f4a6e00df99b32ecf5795c8ab769610d281ac",
-            83145,
-            None,
-        ),
-        // Height 950000
-        create_checkpoint(
-            950000,
-            "0000010dc2164ab88e2302f7e01a0af25065871851b7598ae51eb92146bd514e",
-            "00000002fff187918f44433133f9b05a93927f32d0379d0913e792b72370b035",
-            1705215051,
-            0x1e011364,
-            "0x00000000000000000000000000000000000000000000000002d68d9b24193d1f",
-            "d3971dba516a230ca7a170727c63c343c849e759dac56382513bf0c257f3c79e",
-            233670,
-            None,
-        ),
-        // Height 1000000
-        create_checkpoint(
-            1000000,
-            "000000fddf6f17f24b9f2c7e13daf1bff0307bdb0cf617b61917ef6bd1bddc6a",
-            "0000006a12a5e2ff81f6848e9de07cbe7332e3a68e8132df26e0dac7e459ded5",
-            1712086681,
-            0x1e014c62,
-            "0x00000000000000000000000000000000000000000000000002fbb313ef6876cd",
-            "5198a0918f9b1ee16afad8c309c31dfeae4bf65aba43651e9f4e85b3f7232908",
-            863682,
-            None,
-        ),
-        // Height 1050000
-        create_checkpoint(
-            1050000,
-            "000000accb2b32142fc1c6d90d68e45e392755fb3c79609c48d86b5a7c356bf6",
-            "000001790c977c48ab58db97739bf1a26315471d5cdc7c9f1f366df596ef872c",
-            1718985215,
-            0x1e01ca89,
-            "0x00000000000000000000000000000000000000000000000003177931559cd445",
-            "1e875aa770930f83681c6621982ff5b56cf5cef73f2cfd8f902b7af5bdc6a93a",
-            479846,
-            None,
-        ),
-        // Height 1100000
-        create_checkpoint(
-            1100000,
-            "000000078cc3952c7f594de921ae82fcf430a5f3b86755cd72acd819d0001015",
-            "00000068da3dc19e54cefd3f7e2a7f380bf8d9a0eb1090a7197c3e0b10e2cf1f",
-            1725934127,
-            0x1e017da4,
-            "0x000000000000000000000000000000000000000000000000031c3fcb33bc3a48",
-            "4cc82bf21c5f1e0e712ca1a3d5bde2f92eee2700b86019c6d0ace9c91a8b9bd8",
-            251545,
-            None,
-        ),
-        // Height 1150000
-        create_checkpoint(
-            1150000,
-            "000000e4454d0c168a4b52d85f10f1431d1bccc68c159be1f558f4e5b5c24e53",
-            "00000090b468fa3160c09fc5f25a14f3b5f7fff7e639ee6c26787b8474a701aa",
-            1732966902,
-            0x1e011c98,
-            "0x000000000000000000000000000000000000000000000000031ee3a09785e5ee",
-            "aff652af95d1159a97c77ad905986a06fd47708eb69aaba9f32688feb9d26826",
-            311096,
-            None,
-        ),
-        // Height 1200000
-        create_checkpoint(
-            1200000,
-            "000000595a1fc6b498adce4aa324a4b986d212c005ba1ff7a26d21950147d74f",
-            "000001298d4044030d83afca74bd0b6d85db06a5926683ed0a8584d12a2375da",
-            1740094681,
-            0x1e01713c,
-            "0x000000000000000000000000000000000000000000000000031fa4d54e000deb",
-            "1ef5decaa52021365cc5980846e4ebf072f1df9514303a6346ba734eb17ac143",
-            143784,
-            None,
-        ),
-        // Height 1250000
-        create_checkpoint(
-            1250000,
-            "000002c1b93bb39dd9d4eb1f56a2f2e7443e8350178b9d35026fb5580bf441d8",
-            "00000b1f4696b1927993b86c7e7605d372b6d83d08046889920c35c386f399c5",
-            1747103471,
-            0x1e03a14f,
-            "0x00000000000000000000000000000000000000000000000003472e121dc37e03",
-            "d75c634997a69bfe2c4e2d081df77fb05070768a7cf688cc756d6f9482bbce87",
-            271399,
-            None,
-        ),
-        // Height 1300000
-        create_checkpoint(
-            1300000,
-            "000001556cd2a74e8c80e4478f5d0865f5626ecddc5fa5f968340bafd7bd298e",
-            "00000154148f9f1002a0b397619768e4c7caf64ea48a44d5e93161089967c675",
-            1754134922,
-            0x1e022390,
-            "0x000000000000000000000000000000000000000000000000036073ef820264d6",
-            "ec96c8cc618ff19517f52538532a20ccebfd6be2e34b2ec62dbde16512e5615d",
-            693495,
-            None,
-        ),
-        // Height 1350000
-        create_checkpoint(
-            1350000,
-            "000000c62ce13fb0988e71f2b870d9d38dfd056f9ee175cc840a633a8f150215",
-            "000000099d1c4c31245b6b6299fe54849e09f4af3fcb0e99e7727a70b7fba59b",
-            1761146995,
-            0x1e013eac,
-            "0x000000000000000000000000000000000000000000000000036bc53351955c6e",
-            "dc2f196c72ad1459f16a08fbf9eb6e36a1390390fc403aa76b14a44374eb2362",
-            886358,
-            None,
-        ),
-        // Height 1400000
-        create_checkpoint(
-            1400000,
-            "000000541a23f9db7411cddbe50f9f1ebd4aa7108ebdcad62214753f648c0239",
-            "0000001d568e945387bda758069dfb69f762c587433b92550defc34c5b4ef4d8",
-            1768147275,
-            0x1e015e96,
-            "0x000000000000000000000000000000000000000000000000036c8f738da818d2",
-            "41b996f00ca234b74db94e438f9ee7980097fd207b0d9d513d2934aca17aed6b",
-            516400,
-            None,
-        ),
-        // Height 1450000
-        create_checkpoint(
-            1450000,
-            "000000fa4225fa022d4216eabb176848d61d03027df12e0685f82d8b13c60f03",
-            "000000f16d17ad5b97a6c7e1c431953cc589155a6f24b981bc542f68759d48f8",
-            1775019403,
-            0x1e01222f,
-            "0x00000000000000000000000000000000000000000000000003eb87177577500b",
-            "914a43b78cd4e12cac031e44f8cb0c63f8a3bfd3a238d08ebf83af61962cbb49",
-            61968,
-            None,
-        ),
-        // Height 1500000
-        create_checkpoint(
-            1500000,
-            "000000b625f73fab6cb338c31cb656680ccfb3b574b9225022c8e90e293a0c12",
-            "000000376fa86df5684a69d8055daa1ddaf349844075d55e9a190f2b1899f4f0",
-            1782027920,
-            0x1e00ca28,
-            "0x00000000000000000000000000000000000000000000000003ec5aff7410d4a1",
-            "7ad0f11d8ed65954ce5f42e4aebbe10fd45cac880c31dee76b4b9dcc08382945",
-            461766,
-            None,
-        ),
-    ]
-}
-
-/// Helper to parse hex block hash strings
-fn parse_block_hash(s: &str) -> Result<BlockHash, String> {
-    let bytes = hex_conservative::decode_to_vec(s).map_err(|e| format!("Invalid hex: {}", e))?;
-    if bytes.len() != 32 {
-        return Err("Invalid hash length: expected 32 bytes".to_string());
+    /// The highest checkpoint at or below `height`.
+    pub fn last_checkpoint_before_height(&self, height: u32) -> Option<&Checkpoint> {
+        self.checkpoints.range(..=height).next_back().map(|(_, checkpoint)| checkpoint)
     }
-    let mut hash_bytes = [0u8; 32];
-    hash_bytes.copy_from_slice(&bytes);
-    // Reverse for little-endian
-    hash_bytes.reverse();
-    Ok(BlockHash::from_byte_array(hash_bytes))
-}
 
-/// Helper to parse hex block hash strings, returning zero hash on error
-fn parse_block_hash_safe(s: &str) -> BlockHash {
-    parse_block_hash(s).unwrap_or_else(|e| {
-        tracing::error!("Failed to parse checkpoint block hash '{}': {}", s, e);
-        BlockHash::from_byte_array([0u8; 32])
-    })
-}
-
-/// Helper to create a checkpoint with common defaults
-#[allow(clippy::too_many_arguments)]
-fn create_checkpoint(
-    height: u32,
-    hash: &str,
-    prev_hash: &str,
-    timestamp: u32,
-    bits: u32,
-    chain_work: &str,
-    merkle_root: &str,
-    nonce: u32,
-    masternode_list: Option<&str>,
-) -> Checkpoint {
-    Checkpoint {
-        height,
-        block_hash: parse_block_hash_safe(hash),
-        prev_blockhash: parse_block_hash_safe(prev_hash),
-        timestamp,
-        target: Target::from_compact(CompactTarget::from_consensus(bits)),
-        merkle_root: Some(parse_block_hash_safe(merkle_root)),
-        chain_work: chain_work.to_string(),
-        masternode_list_name: masternode_list.map(|s| s.to_string()),
-        protocol_version: masternode_list.and_then(|ml| {
-            // Extract protocol version from masternode list name
-            ml.split("__").nth(1).and_then(|s| s.parse().ok())
-        }),
-        nonce,
+    /// All the checkpoints, lowest first.
+    pub fn checkpoints(&self) -> impl Iterator<Item = &Checkpoint> {
+        self.checkpoints.values()
     }
 }
 
 #[cfg(test)]
 mod tests {
+    use test_case::test_case;
+
     use super::*;
+    use crate::validation::{BlockHeaderValidator, Validator};
 
-    #[test]
-    fn test_checkpoint_validation() {
-        let checkpoints = mainnet_checkpoints();
-        let manager = CheckpointManager::new(checkpoints);
+    fn checkpoints() -> Vec<Checkpoint> {
+        [50_000, 100_000, 150_000].map(Checkpoint::dummy).to_vec()
+    }
 
-        // Test genesis block
-        let genesis_checkpoint =
-            manager.get_checkpoint(0).expect("Genesis checkpoint should exist");
-        assert_eq!(genesis_checkpoint.height, 0);
-        assert_eq!(genesis_checkpoint.timestamp, 1390095618);
+    #[test]
+    fn new_requires_exactly_the_checkpoint_headers() {
+        let headers = Checkpoint::dummy(100).headers().to_vec();
 
-        // Test validation
-        let genesis_hash =
-            parse_block_hash("00000ffd590b1485b3caadc19b22e6379c733355108f107a430458cdf3407ab6")
-                .expect("Failed to parse genesis hash for test");
-        assert!(manager.validate_block(0, &genesis_hash));
+        assert!(Checkpoint::new(100, headers[1..].to_vec()).is_none());
+        assert!(Checkpoint::new(23, headers.clone()).is_none());
+        assert!(Checkpoint::new(24, headers).is_some());
+    }
 
-        // Test invalid hash
-        let invalid_hash = BlockHash::from_byte_array([1u8; 32]);
-        assert!(!manager.validate_block(0, &invalid_hash));
+    #[test]
+    fn checkpoint_block_is_the_last_header() {
+        let checkpoint = Checkpoint::dummy(100);
 
-        // Test no checkpoint at height
-        assert!(manager.validate_block(1, &invalid_hash)); // No checkpoint at height 1
+        assert_eq!(checkpoint.start_height(), 76);
+        assert_eq!(checkpoint.hash(), checkpoint.headers()[CHECKPOINT_HEADERS - 1].hash());
     }
 
     #[test]
-    fn test_last_checkpoint_before() {
-        let checkpoints = mainnet_checkpoints();
-        let manager = CheckpointManager::new(checkpoints);
+    fn encoding_round_trips() {
+        let checkpoints = checkpoints();
+        let mut bytes = Vec::new();
+        for checkpoint in &checkpoints {
+            checkpoint.consensus_encode(&mut bytes).unwrap();
+        }
 
-        // Test finding checkpoint before various heights
-        assert_eq!(
-            manager.last_checkpoint_before_height(0).expect("Should find checkpoint").height,
-            0
-        );
-        assert_eq!(
-            manager.last_checkpoint_before_height(1000).expect("Should find checkpoint").height,
-            0
-        );
-        assert_eq!(
-            manager.last_checkpoint_before_height(60000).expect("Should find checkpoint").height,
-            50000
-        );
-        assert_eq!(
-            manager.last_checkpoint_before_height(200000).expect("Should find checkpoint").height,
-            200000
-        );
-        assert_eq!(
-            manager.last_checkpoint_before_height(225000).expect("Should find checkpoint").height,
-            200000
-        );
+        let decoded = decode_checkpoints(&bytes).unwrap();
+
+        assert_eq!(decoded.len(), checkpoints.len());
+        for (decoded, checkpoint) in decoded.iter().zip(&checkpoints) {
+            assert_eq!(decoded.height(), checkpoint.height());
+            assert_eq!(decoded.hash(), checkpoint.hash());
+        }
     }
 
     #[test]
-    fn test_protocol_version_extraction() {
-        let checkpoint = create_checkpoint(
-            1088640,
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            0,
-            0,
-            "",
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            0,
-            Some("ML1088640__70218"),
-        );
+    fn truncated_encoding_is_rejected() {
+        let mut bytes = Vec::new();
+        Checkpoint::dummy(100).consensus_encode(&mut bytes).unwrap();
+        bytes.pop();
 
-        assert_eq!(checkpoint.protocol_version(), Some(70218));
-        assert!(checkpoint.has_masternode_list());
+        assert!(decode_checkpoints(&bytes).is_err());
+    }
 
-        let checkpoint_no_version = create_checkpoint(
-            0,
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            0,
-            0,
-            "",
-            "0000000000000000000000000000000000000000000000000000000000000000",
-            0,
-            None,
-        );
+    #[test_case(0, None)]
+    #[test_case(49_999, None)]
+    #[test_case(50_000, Some(50_000))]
+    #[test_case(120_000, Some(100_000))]
+    #[test_case(u32::MAX, Some(150_000))]
+    fn last_checkpoint_before_height(height: u32, expected: Option<u32>) {
+        let manager = CheckpointManager::new(checkpoints());
 
-        assert_eq!(checkpoint_no_version.protocol_version(), None);
-        assert!(!checkpoint_no_version.has_masternode_list());
+        assert_eq!(manager.last_checkpoint_before_height(height).map(Checkpoint::height), expected);
     }
 
     #[test]
-    #[ignore] // Test depends on specific mainnet checkpoint data
-    fn test_fork_rejection() {
-        let checkpoints = mainnet_checkpoints();
-        let manager = CheckpointManager::new(checkpoints);
+    fn checkpoints_are_sorted_by_height() {
+        let mut unsorted = checkpoints();
+        unsorted.reverse();
+        let manager = CheckpointManager::new(unsorted);
 
-        // Should reject fork at checkpoint height
-        assert!(manager.should_reject_fork(1500));
-        assert!(manager.should_reject_fork(750000));
+        let heights: Vec<u32> = manager.checkpoints().map(Checkpoint::height).collect();
+        assert_eq!(heights, [50_000, 100_000, 150_000]);
+    }
 
-        // Should not reject fork after last checkpoint
-        assert!(!manager.should_reject_fork(2000000));
+    #[test_case(Network::Mainnet)]
+    #[test_case(Network::Testnet)]
+    fn embedded_checkpoints_are_valid(network: Network) {
+        let manager = CheckpointManager::for_network(network);
+        assert!(manager.checkpoints().next().is_some(), "{network} must have checkpoints");
+
+        for checkpoint in manager.checkpoints() {
+            BlockHeaderValidator::new().validate(checkpoint.headers()).unwrap_or_else(|e| {
+                panic!("checkpoint {} of {network} is invalid: {e}", checkpoint.height())
+            });
+        }
     }
 
+    // Hand-written, this checkpoint had the wrong time and bits.
     #[test]
-    fn test_checkpoint_by_timestamp() {
-        let checkpoints = mainnet_checkpoints();
-        let manager = CheckpointManager::new(checkpoints);
+    fn mainnet_checkpoint_750000_is_the_real_block() {
+        let manager = CheckpointManager::for_network(Network::Mainnet);
+        let checkpoint = manager.last_checkpoint_before_height(750_000).expect("checkpoint 750000");
+        let header = checkpoint.header().header();
+
+        assert_eq!(
+            checkpoint.hash().to_string(),
+            "00000000000000b4181bbbdddbae464ce11fede5d0292fb63fdede1e7c8ab21c"
+        );
+        assert_eq!(header.time, 1507424630);
+        assert_eq!(header.bits.to_consensus(), 0x1a027884);
+    }
 
-        // Test finding checkpoint by timestamp
-        let checkpoint = manager.last_checkpoint_before_timestamp(1500000000);
-        assert!(checkpoint.is_some());
-        assert!(checkpoint.expect("Should find checkpoint by timestamp").timestamp <= 1500000000);
+    #[test_case(Network::Devnet)]
+    #[test_case(Network::Regtest)]
+    fn networks_without_embedded_checkpoints(network: Network) {
+        assert!(CheckpointManager::for_network(network).checkpoints().next().is_none());
     }
 }
diff --git a/dash-spv/src/chain/mod.rs b/dash-spv/src/chain/mod.rs
index 3231c70ea..385eab6a1 100644
--- a/dash-spv/src/chain/mod.rs
+++ b/dash-spv/src/chain/mod.rs
@@ -10,9 +10,6 @@ pub mod chain_tip;
 pub mod chain_work;
 pub mod checkpoints;
 
-#[cfg(test)]
-mod checkpoint_test;
-
 pub use chain_tip::{ChainTip, ChainTipManager};
 pub use chain_work::ChainWork;
 pub use checkpoints::{Checkpoint, CheckpointManager};
diff --git a/dash-spv/src/client/lifecycle.rs b/dash-spv/src/client/lifecycle.rs
index 80c29929c..adfbb0bd3 100644
--- a/dash-spv/src/client/lifecycle.rs
+++ b/dash-spv/src/client/lifecycle.rs
@@ -22,12 +22,7 @@ use crate::sync::{
     BlockHeadersManager, BlocksManager, ChainLockManager, FilterHeadersManager, FiltersManager,
     InstantSendManager, Managers, MasternodesManager, MempoolManager, SyncCoordinator,
 };
-use crate::types::HashedBlockHeader;
-use dashcore::block::{Header as BlockHeader, Version};
 use dashcore::network::constants::NetworkExt;
-use dashcore::pow::CompactTarget;
-use dashcore::TxMerkleNode;
-use dashcore_hashes::Hash;
 use key_wallet_manager::WalletInterface;
 use std::future::Future;
 use std::pin::Pin;
@@ -125,7 +120,7 @@ impl<W: WalletInterface, N: NetworkManager> DashSpvClient<W, N> {
     ) -> Result<SyncManagers<W>> {
         let mut managers: SyncManagers<W> = Managers::default();
 
-        let checkpoint_manager = Arc::new(CheckpointManager::for_network(config.network));
+        let checkpoint_manager = CheckpointManager::for_network(config.network);
         managers.block_headers = Some(
             BlockHeadersManager::new(
                 storage.block_headers(),
@@ -358,45 +353,23 @@ impl<W: WalletInterface, N: NetworkManager> DashSpvClient<W, N> {
             // Find the best checkpoint at or before the requested height
             if let Some(checkpoint) = checkpoint_manager.last_checkpoint_before_height(start_height)
             {
-                if checkpoint.height > 0 {
-                    tracing::info!(
-                        "🚀 Starting sync from checkpoint at height {} instead of genesis (requested start height: {})",
-                        checkpoint.height,
-                        start_height
-                    );
-
-                    // The checkpoint stores the trusted block hash but not the block version,
-                    // so a reconstructed header cannot be hashed back to that value. Anchor on
-                    // the trusted hash directly: chain linkage compares against the stored hash,
-                    // and `time`/`bits` (used for difficulty checks of later headers) come from
-                    // the checkpoint. The version is irrelevant since the hash is never recomputed.
-                    let checkpoint_header = BlockHeader {
-                        version: Version::from_consensus(0),
-                        prev_blockhash: checkpoint.prev_blockhash,
-                        merkle_root: checkpoint
-                            .merkle_root
-                            .map(|h| TxMerkleNode::from_byte_array(*h.as_byte_array()))
-                            .unwrap_or_else(TxMerkleNode::all_zeros),
-                        time: checkpoint.timestamp,
-                        bits: CompactTarget::from_consensus(
-                            checkpoint.target.to_compact_lossy().to_consensus(),
-                        ),
-                        nonce: checkpoint.nonce,
-                    };
-                    let anchor = HashedBlockHeader::with_trusted_hash(
-                        checkpoint_header,
-                        checkpoint.block_hash,
-                    );
-                    storage.store_headers_at_height(&[anchor], checkpoint.height).await?;
-
-                    tracing::info!(
-                        "✅ Initialized from checkpoint at height {}, skipping {} headers",
-                        checkpoint.height,
-                        checkpoint.height
-                    );
-
-                    return Ok(());
-                }
+                tracing::info!(
+                    "🚀 Starting sync from checkpoint at height {} instead of genesis (requested start height: {})",
+                    checkpoint.height(),
+                    start_height
+                );
+
+                storage
+                    .store_headers_at_height(checkpoint.headers(), checkpoint.start_height())
+                    .await?;
+
+                tracing::info!(
+                    "✅ Initialized from checkpoint at height {}, skipping {} headers",
+                    checkpoint.height(),
+                    checkpoint.start_height()
+                );
+
+                return Ok(());
             }
         }
 
diff --git a/dash-spv/src/sync/block_headers/manager.rs b/dash-spv/src/sync/block_headers/manager.rs
index 8c6e1c354..397c5e69c 100644
--- a/dash-spv/src/sync/block_headers/manager.rs
+++ b/dash-spv/src/sync/block_headers/manager.rs
@@ -46,7 +46,7 @@ pub struct BlockHeadersManager<H: BlockHeaderStorage, M: MetadataStorage> {
     /// Pipeline for parallel header downloads (used for both initial sync and post-sync).
     pub(super) pipeline: HeadersPipeline,
     /// Compiled-in checkpoints, which no fork may branch off below.
-    checkpoint_manager: Arc<CheckpointManager>,
+    checkpoint_manager: &'static CheckpointManager,
     /// Pending block announcements waiting for headers message (post-sync).
     pub(super) pending_announcements: HashMap<BlockHash, Instant>,
     /// Peers we've sent a GetHeaders to after sync, so Dash Core knows our tip
@@ -68,7 +68,7 @@ impl<H: BlockHeaderStorage, M: MetadataStorage> BlockHeadersManager<H, M> {
     pub async fn new(
         header_storage: Arc<RwLock<H>>,
         metadata_storage: Arc<RwLock<M>>,
-        checkpoint_manager: Arc<CheckpointManager>,
+        checkpoint_manager: &'static CheckpointManager,
     ) -> SyncResult<Self> {
         let tip = header_storage
             .read()
@@ -92,7 +92,7 @@ impl<H: BlockHeaderStorage, M: MetadataStorage> BlockHeadersManager<H, M> {
             progress: initial_progress,
             header_storage,
             metadata_storage,
-            pipeline: HeadersPipeline::new(checkpoint_manager.clone()),
+            pipeline: HeadersPipeline::new(checkpoint_manager),
             checkpoint_manager,
             pending_announcements: HashMap::new(),
             announced_peers: HashSet::new(),
@@ -209,12 +209,12 @@ impl<H: BlockHeaderStorage, M: MetadataStorage> BlockHeadersManager<H, M> {
 
             if let Some(checkpoint) = tip
                 .and_then(|tip| self.checkpoint_manager.last_checkpoint_before_height(tip))
-                .filter(|checkpoint| fork_height < checkpoint.height)
+                .filter(|checkpoint| fork_height < checkpoint.height())
             {
                 tracing::warn!(
                     "Ignoring a fork at height {}, below the checkpoint at {}",
                     fork_height,
-                    checkpoint.height
+                    checkpoint.height()
                 );
                 return Ok(None);
             }
@@ -366,8 +366,6 @@ impl<H: BlockHeaderStorage, M: MetadataStorage> BlockHeadersManager<H, M> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::chain::checkpoints::testnet_checkpoints;
-    use crate::chain::Checkpoint;
     use crate::network::{MessageType, NetworkEvent, NetworkRequest, RequestSender};
     use crate::storage::{
         DiskStorageManager, PersistentBlockHeaderStorage, PersistentMetadataStorage, StorageManager,
@@ -382,8 +380,8 @@ mod tests {
     type TestBlockHeadersManager =
         BlockHeadersManager<PersistentBlockHeaderStorage, PersistentMetadataStorage>;
 
-    fn create_test_checkpoint_manager() -> Arc<CheckpointManager> {
-        Arc::new(CheckpointManager::new(testnet_checkpoints()))
+    fn create_test_checkpoint_manager() -> &'static CheckpointManager {
+        CheckpointManager::for_network(dashcore::Network::Testnet)
     }
 
     async fn create_test_manager() -> TestBlockHeadersManager {
@@ -444,32 +442,30 @@ mod tests {
     /// Blocks below the newest checkpoint the stored chain reaches are final, as
     /// below the best ChainLock. A checkpoint above the tip fixes nothing yet,
     /// or no fork could ever be followed before the chain reached it.
-    #[test_case(5, None; "below the checkpoint")]
-    #[test_case(6, Some(6); "at the checkpoint")]
-    #[test_case(7, Some(7); "above the checkpoint")]
+    #[test_case(49_999, None; "below the checkpoint")]
+    #[test_case(50_000, Some(50_000); "at the checkpoint")]
+    #[test_case(50_001, Some(50_001); "above the checkpoint")]
     #[tokio::test]
     async fn a_branch_off_below_the_newest_reached_checkpoint_is_no_fork(
         branch_off: u32,
         expected: Option<u32>,
     ) {
         let mut storage = DiskStorageManager::with_temp_dir().await.unwrap();
-        let stored = Header::dummy_batch(0..10);
-        storage
-            .store_headers(&stored.iter().map(HashedBlockHeader::from).collect::<Vec<_>>())
-            .await
-            .unwrap();
-        let checkpoints = [0, 6, 20].map(Checkpoint::dummy).to_vec();
+        let start = 49_990;
+        let stored: Vec<_> =
+            Header::dummy_batch(start..50_010).iter().map(HashedBlockHeader::from).collect();
+        storage.store_headers_at_height(&stored, start).await.unwrap();
         let manager = BlockHeadersManager::new(
             storage.block_headers(),
             storage.metadata(),
-            Arc::new(CheckpointManager::new(checkpoints)),
+            create_test_checkpoint_manager(),
         )
         .await
         .unwrap();
 
         let branch = Header {
-            prev_blockhash: stored[branch_off as usize].block_hash(),
-            ..Header::dummy(1_000)
+            prev_blockhash: *stored[(branch_off - start) as usize].hash(),
+            ..Header::dummy(1_000_000)
         };
 
         assert_eq!(
diff --git a/dash-spv/src/sync/block_headers/pipeline.rs b/dash-spv/src/sync/block_headers/pipeline.rs
index 286816ddf..781c55a3b 100644
--- a/dash-spv/src/sync/block_headers/pipeline.rs
+++ b/dash-spv/src/sync/block_headers/pipeline.rs
@@ -4,8 +4,6 @@
 //! downloaded in parallel from multiple peers. Each segment tracks its own
 //! progress and buffers headers until ready for ordered storage.
 
-use std::sync::Arc;
-
 #[cfg(test)]
 use dashcore::block::Header;
 use dashcore::BlockHash;
@@ -30,7 +28,7 @@ pub struct HeadersPipeline {
     /// Index of the next segment to store (all previous must be complete).
     next_to_store: usize,
     /// Checkpoint manager reference.
-    checkpoint_manager: Arc<CheckpointManager>,
+    checkpoint_manager: &'static CheckpointManager,
     /// Whether the pipeline has been initialized.
     initialized: bool,
 }
@@ -47,7 +45,7 @@ impl std::fmt::Debug for HeadersPipeline {
 
 impl HeadersPipeline {
     /// Create a new headers pipeline with the given checkpoint manager.
-    pub fn new(checkpoint_manager: Arc<CheckpointManager>) -> Self {
+    pub fn new(checkpoint_manager: &'static CheckpointManager) -> Self {
         Self {
             segments: Vec::new(),
             next_to_store: 0,
@@ -62,9 +60,6 @@ impl HeadersPipeline {
         self.next_to_store = 0;
         self.initialized = true;
 
-        // Get checkpoint heights and find which ones are relevant
-        let checkpoint_heights = self.checkpoint_manager.checkpoint_heights();
-
         // Find checkpoints between current_height and target_height
         let mut boundaries: Vec<(u32, BlockHash)> = Vec::new();
 
@@ -72,11 +67,10 @@ impl HeadersPipeline {
         boundaries.push((current_height, current_hash));
 
         // Add checkpoints that are above current_height
-        for &height in checkpoint_heights {
+        for checkpoint in self.checkpoint_manager.checkpoints() {
+            let height = checkpoint.height();
             if height > current_height && height <= target_height {
-                if let Some(cp) = self.checkpoint_manager.get_checkpoint(height) {
-                    boundaries.push((height, cp.block_hash));
-                }
+                boundaries.push((height, *checkpoint.hash()));
             }
         }
 
@@ -352,19 +346,24 @@ impl HeadersPipeline {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::chain::checkpoints::{mainnet_checkpoints, testnet_checkpoints};
+    use dashcore::network::constants::NetworkExt;
+    use dashcore::Network;
     use tokio::sync::mpsc::unbounded_channel;
 
     use crate::network::{NetworkRequest, RequestSender};
     use crate::sync::block_headers::segment_state::SegmentState;
 
-    fn create_test_checkpoint_manager(is_testnet: bool) -> Arc<CheckpointManager> {
-        let checkpoints = if is_testnet {
-            testnet_checkpoints()
+    fn create_test_checkpoint_manager(is_testnet: bool) -> &'static CheckpointManager {
+        let network = if is_testnet {
+            Network::Testnet
         } else {
-            mainnet_checkpoints()
+            Network::Mainnet
         };
-        Arc::new(CheckpointManager::new(checkpoints))
+        CheckpointManager::for_network(network)
+    }
+
+    fn testnet_genesis_hash() -> BlockHash {
+        Network::Testnet.known_genesis_block_hash().unwrap()
     }
 
     fn create_test_request_sender(
@@ -385,11 +384,9 @@ mod tests {
     #[test]
     fn test_pipeline_init_testnet() {
         let cm = create_test_checkpoint_manager(true);
-        let mut pipeline = HeadersPipeline::new(cm.clone());
+        let mut pipeline = HeadersPipeline::new(cm);
 
-        // Get genesis hash for testnet
-        let genesis = cm.get_checkpoint(0).unwrap();
-        pipeline.init(0, genesis.block_hash, 1_200_000);
+        pipeline.init(0, testnet_genesis_hash(), 1_200_000);
 
         assert!(pipeline.is_initialized());
         // Should have segments: 0->500k, 500k->800k, 800k->1.1M, 1.1M->tip
@@ -399,11 +396,11 @@ mod tests {
     #[test]
     fn test_pipeline_init_from_middle() {
         let cm = create_test_checkpoint_manager(true);
-        let mut pipeline = HeadersPipeline::new(cm.clone());
+        let mut pipeline = HeadersPipeline::new(cm);
 
         // Start from checkpoint 500k
-        let cp_500k = cm.get_checkpoint(500_000).unwrap();
-        pipeline.init(500_000, cp_500k.block_hash, 1_200_000);
+        let cp_500k = cm.last_checkpoint_before_height(500_000).unwrap();
+        pipeline.init(500_000, *cp_500k.hash(), 1_200_000);
 
         // Should have fewer segments since we're starting from 500k
         assert!(pipeline.is_initialized());
@@ -414,10 +411,9 @@ mod tests {
     #[test]
     fn test_pipeline_send_pending() {
         let cm = create_test_checkpoint_manager(true);
-        let mut pipeline = HeadersPipeline::new(cm.clone());
+        let mut pipeline = HeadersPipeline::new(cm);
 
-        let genesis = cm.get_checkpoint(0).unwrap();
-        pipeline.init(0, genesis.block_hash, 1_200_000);
+        pipeline.init(0, testnet_genesis_hash(), 1_200_000);
 
         let (sender, mut rx) = create_test_request_sender();
 
@@ -453,10 +449,9 @@ mod tests {
     #[test]
     fn test_pipeline_is_complete_initially() {
         let cm = create_test_checkpoint_manager(true);
-        let mut pipeline = HeadersPipeline::new(cm.clone());
+        let mut pipeline = HeadersPipeline::new(cm);
 
-        let genesis = cm.get_checkpoint(0).unwrap();
-        pipeline.init(0, genesis.block_hash, 1_200_000);
+        pipeline.init(0, testnet_genesis_hash(), 1_200_000);
 
         assert!(!pipeline.is_complete());
     }
@@ -464,10 +459,9 @@ mod tests {
     #[test]
     fn test_take_ready_to_store_empty() {
         let cm = create_test_checkpoint_manager(true);
-        let mut pipeline = HeadersPipeline::new(cm.clone());
+        let mut pipeline = HeadersPipeline::new(cm);
 
-        let genesis = cm.get_checkpoint(0).unwrap();
-        pipeline.init(0, genesis.block_hash, 1_200_000);
+        pipeline.init(0, testnet_genesis_hash(), 1_200_000);
 
         let ready = pipeline.take_ready_to_store();
         assert!(ready.is_empty());
diff --git a/dash-spv/src/test_utils/checkpoint.rs b/dash-spv/src/test_utils/checkpoint.rs
index c9d11b433..0e1e20a6c 100644
--- a/dash-spv/src/test_utils/checkpoint.rs
+++ b/dash-spv/src/test_utils/checkpoint.rs
@@ -1,26 +1,15 @@
-use dashcore::{CompactTarget, Header, Target};
+use dashcore::Header;
 
+use crate::chain::checkpoints::CHECKPOINT_HEADERS;
 use crate::chain::Checkpoint;
+use crate::types::HashedBlockHeader;
 
 impl Checkpoint {
+    /// A checkpoint at `height` of dummy headers, which do not chain nor meet their bits.
     pub fn dummy(height: u32) -> Checkpoint {
-        let block_header = Header::dummy(height);
+        let start = height - (CHECKPOINT_HEADERS as u32 - 1);
+        let headers = (start..=height).map(|h| HashedBlockHeader::from(Header::dummy(h))).collect();
 
-        Checkpoint {
-            height,
-            block_hash: block_header.block_hash(),
-            prev_blockhash: block_header.prev_blockhash,
-            timestamp: block_header.time,
-            target: Target::from_compact(CompactTarget::from_consensus(0x1d00ffff)),
-            merkle_root: Some(block_header.block_hash()),
-            chain_work: format!("0x{:064x}", height.wrapping_mul(1000)),
-            masternode_list_name: if height.is_multiple_of(100000) && height > 0 {
-                Some(format!("ML{}__70230", height))
-            } else {
-                None
-            },
-            protocol_version: None,
-            nonce: block_header.nonce,
-        }
+        Checkpoint::new(height, headers).expect("dummy checkpoint height must fit its headers")
     }
 }
diff --git a/dash-spv/src/types.rs b/dash-spv/src/types.rs
index 679af2fec..7fcd2e6b2 100644
--- a/dash-spv/src/types.rs
+++ b/dash-spv/src/types.rs
@@ -30,8 +30,7 @@ impl HashedBlockHeader {
     /// Pair a header with a known, trusted hash without recomputing it from the header.
     ///
     /// The caller guarantees the hash is correct. This is used for hashes computed by the
-    /// network decoder and for checkpoint anchors whose reconstructed header bytes would not
-    /// reproduce the trusted checkpoint hash.
+    /// network decoder.
     pub(crate) fn with_trusted_hash(header: BlockHeader, hash: BlockHash) -> Self {
         Self {
             header,