Checkpoints of week 2026-W44

26 October 2026 – 1 November 2026 (UTC) · 8 checkpoints

A checkpoint is a signed state of the Merkle tree over the whole Sigelith proof log, chained to the previous checkpoint by the SHA-256 of its file. This page shows the exact bytes of every checkpoint issued in this week, so even a copy of it is enough to recompute each hash.

Weekly checkpoint

Number

#44

Issued

2026-11-02T00:09:50.976442Z

File SHA-256

d0ae31cbe1714dd035f69442783aee925eca068559ddfd6be9d9978bc5820d00

Global tree

tree_size 889, root 84d7e44d2495abc28486a9465e0ee3e72c920bac9b64a905994f151bba91aa3e

Last entry

seq 889, chain hash 9dcbed883c5cc8aabe092fae21fb016a2c210f9dd6b875ea11de4292bb95c98a

Bitcoin block

974189 0000000000000000000161944dad71482f883973bac2d0826d4ba7abd1b4e564

Previous checkpoint

c49b3782a07bf0c4af0eca8ae251387cbf6a709dcdcb2fc4299fe4c98cf6a185

Week entries

176

Weekly Merkle root

f54df4f56ca764443230059f381a4329ce3d6e5e7458bdc9cac0b283e2f82c84

Weekly dump

2026-W44.jsonl, SHA-256 496ca501ac9b94aaaa26a1a5534de037fcad66c823fe3d9f4405dd3d1d0c5f54

Signing key

e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y= — compare with the key history

Bank anchors recorded in this checkpoint

Confirmed bank transfers added since the previous weekly checkpoint. Each title reproduces a weekly Merkle root.

All checkpoints of this week

Anchors and independent copies

Every checkpoint is sealed by parties that depend neither on each other nor on us.

Ed25519 signature

Every file is signed. Check the key against the key history.

Bitcoin block in the file

Not earlier than. Each checkpoint names a Bitcoin block on which two independent sources agree, so it cannot have been written before that block was mined.

OpenTimestamps

Not later than. The SHA-256 of every file is committed to Bitcoin: 8 of 8 proofs of this week already in a block.

Bank transfer

Each weekly Merkle root is anchored by a bank transfer titled MROOT with the root; every weekly checkpoint records the transfers booked since the previous one; this week's weekly checkpoint records 1. All bank anchors.

GitHub

Immutable release 2026-W44 in DeiFlagellum/sigelith-log.

Internet Archive

Snapshot of this page and of the weekly checkpoint file.

Zenodo

Every quarter a complete snapshot of the log — every checkpoint and every weekly dump — is deposited in Zenodo (CERN) with a permanent DOI; latest version: 2026-Q3.

Public log

Every entry can be downloaded (entries, weekly dumps), so anyone can recompute every root and check every signature.

How to verify

1. Take the checkpoint file from an independent copy, not from us.
2. Check the Ed25519 signature: the message is beattime-checkpoint-v1| followed by the file's JSON without sig, in canonical form (RFC 8785); the key is in key. The format identifier keeps the log's original name — see the naming history.
3. Check the chain: the SHA-256 of each file equals prev of the next one.
4. Check the time: ots verify 000037.json.ots — Bitcoin attests that the file existed.
5. Download the log (entries or weekly dumps) and recompute root over the first tree_size entries (RFC 9162 Merkle tree).

Exact formats and the full procedure: README of DeiFlagellum/sigelith-log and the proof specification.

Exact files

000037.json

{"btc":{"hash":"0000000000000000000129805ed3adc367c14946a560c3a5f7cc402873c5ac72","height":973148},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"45861c9684d4e166a8504a2134b3407990ab428969ed498ff8f71d7eb95c2b61","last_seq":713,"n":37,"prev":"fb73d836b53770a7f959ccf2cb4a937866ec03b0e078f9afc66128b68f8ca22a","root":"13623692a17e6ef4492c417b5a5587f811a8abca561604f0cce4a4ba5ee9d778","sig":"Wv/Cv+n3vqHeNwzAjfMOgqPH36wfeQyirAEZHZY6qgjD+mw9IBSeisdqbZiOa5FwGGl14Z6swkTcYbU3RpguCg==","tree_size":713,"utc":"2026-10-26T00:09:50.977676Z"}

000038.json

{"btc":{"hash":"000000000000000000010c4f43a9db09c43706fb490a0c34ef3d9c4ca96050f5","height":973312},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"89aedb12cd8327b5f3ff74736ed44b96d195eea9906e571a56f430c0298f200f","last_seq":734,"n":38,"prev":"f2cf00194ad61b33e5685ea814be4fcfe75f5df6ec6309a17674861e0aefa5ba","root":"6ee298c5b422a31b398e6c8cdfb4827005af8a1ee53b7ac3c49c9933dca3f7a8","sig":"39o12DWqAWoEaeacr/AlgWZSTJeEgLc8d1Z4hSkh5omA6GRUJmazDdsxvyAWqFCIQCczVnuKgKkJAyzq3rHLCQ==","tree_size":734,"utc":"2026-10-27T00:09:54.933438Z"}

000039.json

{"btc":{"hash":"000000000000000000000faad5f98f15455eff029253b36dfd02c7ac9453e8d0","height":973468},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"09a399180964b9a76f00253a2bd0bdcec4915bae857f0965d0f24c58dc6bb9be","last_seq":756,"n":39,"prev":"d04da83ae9c7c8a6059ef7865bf5f7c19d0c345be29a15e920954fa8ffe0a2c4","root":"4c57e270f9ae2ab228d536865fdf760a4317e930407258a7418e3951595a9256","sig":"H3T8bj3XbZbIVE8VQIe/GdqudxbnvGOW1oUARPaUhv/WkJnEq7uFRyjw8hcAFpPbzKKH3wzFSWdmg6K7YgIlCg==","tree_size":756,"utc":"2026-10-28T00:09:50.908172Z"}

000040.json

{"btc":{"hash":"00000000000000000000c4e7028fc84127dca0a869eaad13cf39a2648bbec63a","height":973613},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"fe361fb09fd868d7def34c329d0cc3d54b4ac3df76113cfa84c4a23824b2aaef","last_seq":784,"n":40,"prev":"6ae7b102bf32b912f6beafc2eadcdeda05fe0748cd4a023e1dc27a5484f2add6","root":"f8764e9faf413808531640590aa8c267f4c3658a1c3fb88f608f264a8bf02f2e","sig":"jrIq1YrRVhQYBpj4FAiuPRpKcA2vE8by2XVUmygMDynYjdEQcH/3kyWEtGCtXj7gvGxMcwGRpo3yqiJs9B2dCA==","tree_size":784,"utc":"2026-10-29T00:09:50.927991Z"}

000041.json

{"btc":{"hash":"000000000000000000017603d4cfdfb3469e913c7c2e02bf0a3fbfad235bda9b","height":973751},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"7d349fdd814bc38ee000453e13bb85641bf05398ef1e6d24bf46b9207f0d0798","last_seq":802,"n":41,"prev":"ac9f10f772ad8add4589f78c0c687f9093a26bc11123fdb59fda4539f2246a9d","root":"521d154c33459661adbc11066f45d26edf709cbca9482e0b89142343b3f8aa0e","sig":"7FqMjSh+VWAj2y+j73W4WOT5HHek44bvVdCZfSzN6ZrGRzvU+5dCqWehTJcKWymTipU0iqUJHXcjp9gMDCWMCw==","tree_size":802,"utc":"2026-10-30T00:09:50.932875Z"}

000042.json

{"btc":{"hash":"00000000000000000001b5b4f74bd0d555e4cd01ffa6a6dea45b8c1c9c71957c","height":973894},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"74be01024d2b7be74c592dd4666e8d03a53d5e9edb3d038f85975220bd6bb22d","last_seq":816,"n":42,"prev":"356a380dbef836a6694e6056f122ada11ed2bca84935ff2196838db745efd576","root":"4508b38bb00096f0fc7286e9edb4a327df70da57eb29be796a0d55c1c5d01c98","sig":"NM2A4Sh8p2WhqA3vI3PYJ+hV+rq6VO64kNmIQtU8d6kmoPqCKB24E9pD3WmrJ8EVQ0ICpqr+uNrxpu/tbx8kBg==","tree_size":816,"utc":"2026-10-31T00:09:50.925651Z"}

000043.json

{"btc":{"hash":"000000000000000000001c441dea456d5434dddddfca72f4d4948e3792a08ff5","height":974041},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"7a33b3a8f2be2ed9804f48b4d6d52ed20018b7deedd1bd496dd36e3fda960800","last_seq":854,"n":43,"prev":"3e1cb87bd19863b6064b49b0da87bf263b2a132e8bcf3602b0a7476693ef0dca","root":"a9d9afa8c1d572af86f6025f293fa2909ee607ea5b58e608fd47a08a9bb95594","sig":"7tR3hSR3kbqPFGusuMe9521pa7oJXkUGsgbBBeXz5ck8oVYysRqDl0cOem+3Fv4Xs40ahVhknmKItj8gtvF9BQ==","tree_size":854,"utc":"2026-11-01T00:09:50.923484Z"}

000044.json

{"anchors":[{"bank":"Swissquote Bank SA (Swiss bank)","booked":"2026-10-28","reference":"1202629653","title":"MROOT 2026W43 a083f047 207f54eb 3a7b2f88 aee324fa 42bf0433 fdc94ab2 6bd9be56 2316da28","week":"2026-W43"}],"btc":{"hash":"0000000000000000000161944dad71482f883973bac2d0826d4ba7abd1b4e564","height":974189},"dump":{"file":"2026-W44.jsonl","sha256":"496ca501ac9b94aaaa26a1a5534de037fcad66c823fe3d9f4405dd3d1d0c5f54"},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"weekly","last_chain_hash":"9dcbed883c5cc8aabe092fae21fb016a2c210f9dd6b875ea11de4292bb95c98a","last_seq":889,"n":44,"prev":"c49b3782a07bf0c4af0eca8ae251387cbf6a709dcdcb2fc4299fe4c98cf6a185","root":"84d7e44d2495abc28486a9465e0ee3e72c920bac9b64a905994f151bba91aa3e","sig":"NQTy+DnBHl4s2oI3DdgDkmTLIz6/D/qdpwE3pLTG9bQpwgcwZn96LtOAcQXnhgxQPbcN2uDfYjtRVMZtyspeBA==","tree_size":889,"utc":"2026-11-02T00:09:50.976442Z","week":"2026-W44","week_root":"f54df4f56ca764443230059f381a4329ce3d6e5e7458bdc9cac0b283e2f82c84","week_size":176}

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