Checkpoints of week 2026-W45

2 November 2026 – 8 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

#52

Issued

2026-11-09T00:09:50.975233Z

File SHA-256

158c92ef6f1dccb309cded808dc0acf1debb3d73d0d76c3b7570fe5d79c9e61e

Global tree

tree_size 1052, root 22aa479a88399527860142f661d6145aee5d7ab895e1ad58c74327e31c542d42

Last entry

seq 1052, chain hash a194e927d9abd7978f220d8d0d133301d84e86ce46184b71204b4cb20a19c720

Bitcoin block

975112 00000000000000000001b926cc937c55230702a234fbf2ba32e6a6112b1d473e

Previous checkpoint

021996437d65a6f4c652b513bfcb569c7947ee4b2c2b60deacff4ad8c6dd780a

Week entries

163

Weekly Merkle root

507219167012b14cf5b915cc4e25dc53ff2470d78db8c01617c81fdc544ec24a

Weekly dump

2026-W45.jsonl, SHA-256 9e78e71663c9e7b834d85b21bf94c0d480a2bca74ba5272c235f6eeb276bb519

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-W45 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 000045.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

000045.json

{"btc":{"hash":"0000000000000000000161944dad71482f883973bac2d0826d4ba7abd1b4e564","height":974189},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"9dcbed883c5cc8aabe092fae21fb016a2c210f9dd6b875ea11de4292bb95c98a","last_seq":889,"n":45,"prev":"d0ae31cbe1714dd035f69442783aee925eca068559ddfd6be9d9978bc5820d00","root":"84d7e44d2495abc28486a9465e0ee3e72c920bac9b64a905994f151bba91aa3e","sig":"qnzm/W7qpJYJQ62nZGktrbB4ejqeGr4Sa9xgz3Gb6kbXNB+TPd1zHSQlBDP8It8sjg/xYrd1onW54ByzqShWDQ==","tree_size":889,"utc":"2026-11-02T00:09:51.035927Z"}

000046.json

{"btc":{"hash":"00000000000000000000f9989e6e6e86eb0ff963e799bda4359830abedba6d8c","height":974318},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"8590440264e69c959c3d7e9995863635ab4394a4ff8ccd5de2846e0ff7fdf568","last_seq":904,"n":46,"prev":"0fbcc5f87728e80ef211aeef0a84a22209e9b43be7d2ab291d9345e087fc6f48","root":"3c3fe0969f6f8bc01c2399208e7b042ac69f828af760283280057593dcdda390","sig":"qNUqwL4qRcidMUrdZkcbn6+1FfzyDGMfWT/3QzOS2mveU458c4mWURaS2gIki5y0yKcmreVaIl3lYqX69zmZDA==","tree_size":904,"utc":"2026-11-03T00:09:50.923963Z"}

000047.json

{"btc":{"hash":"0000000000000000000191c4d9d7887fb2f9ae2e8ea2ef62dda475b27878693a","height":974456},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"09f4f67639dd05dd1507be9d83a2c8e5de5ee7d205ba0c96ee6b6370205c146e","last_seq":975,"n":47,"prev":"620ed04dbcc0884a00b745e4f83278121246b4d74a21feb4c84cba5783fcf84b","root":"fcae41003664dcf52f6854652f867d566108f2f754df8a525166e626b47620df","sig":"BEFmQQipjfwTmbNeLZOFunXiKsZqrWTq3gcRhDRL3zOJYZ7GalpGcMCD+5+hZ6+JQa1WTP5WrxLfLsJFbt5nAA==","tree_size":975,"utc":"2026-11-04T00:09:50.925565Z"}

000048.json

{"btc":{"hash":"00000000000000000001633b22ef9570b7cb65d8e3a2b26b20bc08312035bbd9","height":974598},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"c5b3a9e59c895b073eecaafbcc1f181729d3a530bd34c930e4d0e8773f8f1e1b","last_seq":990,"n":48,"prev":"d9e05e8a5d8084fda8be3db9bac34e21e166155152459f0f50045d27898bcecf","root":"fc4dd08ccd07146d1c9d7010fece22917a8d135346b030c79efdadfe3ab7b206","sig":"0nHITae7qj+ZyH3pkuxfpE8NvK/3cpfqYRpLX7dc8Fz+qHEq7XHHWw4sY8m9tZTn6LWB/oEb51NGn0rfgAMbAg==","tree_size":990,"utc":"2026-11-05T00:09:50.935140Z"}

000049.json

{"btc":{"hash":"000000000000000000014ac0b11b9b0730ae6bb928d5cae5a9c2c56532db66ac","height":974732},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"1822080c00474ca9c334411594595fc14dc9a45e13b517c4049ffb8b060c8391","last_seq":1007,"n":49,"prev":"dda93f1bc350822947dd4ed6b8516f1f40b8ed0276092109f96dcc825a4dfb16","root":"7f880ccfe9fe42d7d76be3979512e17e7a836a12ee858296983c68fe9e3de828","sig":"xcZNYcDvau0O6b4sexyjKKO0hh8IN7aHM7VH5saZIAmDFOceyBoytWD9ZtSCKNCnPwJL0gTrvqAv3xWyt5RdCA==","tree_size":1007,"utc":"2026-11-06T00:09:52.612251Z"}

000050.json

{"btc":{"hash":"00000000000000000000cebad0d2d551037f43d23b2238daed435e6fa7cebb59","height":974866},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"ccbbff3e60b09b003c6223a5f93703dcfb57eb4091e2786c4c2b6837aa09d6f4","last_seq":1019,"n":50,"prev":"66593727065d27012af6bfb7cc7c3f2672d717f044bae6714f77c8ba0b66f558","root":"563e5183b55c4a39845d3a06ebe3a1132bb4dc448d050fdca8e9da7cccadc9a4","sig":"P4zPd4jwybKF1FnpwBvnzjPBXGBpp4U2UM3zPftg0yvQ8vkD4pInlVVwy+oq8SyWEvprteCWfMZFZ88OweleAg==","tree_size":1019,"utc":"2026-11-07T00:09:50.955154Z"}

000051.json

{"btc":{"hash":"00000000000000000000bbbc55d397074188fc4607da9b255a08c500d94e6a5d","height":975003},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"daily","last_chain_hash":"d2b6056173a55a48b44614be1c698baf9d11ed91f1b5fd00b2823206322f675e","last_seq":1038,"n":51,"prev":"18055f48aba14ef716873c86f227339d1b0c62d7237477e1ead1ff8a9af6cfe1","root":"49494991086942f46bd7746b75a925de965e46cdb5d1ecf5b9b78a8d5014adf5","sig":"1NHqHTM5f3uq9Vu8Nrd+17tUikQcEzeEOVFCPk13D1AsSbXcL6riP67ARSU2ucLAKYsZO+FI6cWN/CREt9OQDQ==","tree_size":1038,"utc":"2026-11-08T00:09:50.940629Z"}

000052.json

{"anchors":[{"bank":"Swissquote Bank SA (Swiss bank)","booked":"2026-11-02","reference":"1205875545","title":"MROOT 2026W44 f54df4f5 6ca76444 3230059f 381a4329 ce3d6e5e 7458bdc9 cac0b283 e2f82c84","week":"2026-W44"}],"btc":{"hash":"00000000000000000001b926cc937c55230702a234fbf2ba32e6a6112b1d473e","height":975112},"dump":{"file":"2026-W45.jsonl","sha256":"9e78e71663c9e7b834d85b21bf94c0d480a2bca74ba5272c235f6eeb276bb519"},"format":"beattime-checkpoint-v1","key":"e7y9THJIUKvNKOZHmdBjJ8E0bOKyBFVxxMpAJ8w574Y=","kind":"weekly","last_chain_hash":"a194e927d9abd7978f220d8d0d133301d84e86ce46184b71204b4cb20a19c720","last_seq":1052,"n":52,"prev":"021996437d65a6f4c652b513bfcb569c7947ee4b2c2b60deacff4ad8c6dd780a","root":"22aa479a88399527860142f661d6145aee5d7ab895e1ad58c74327e31c542d42","sig":"lG/u3KQhqqhorUo/PsMylItMoHKZIFxEwPVPQF8mkUYEks1FPeEbVudYwNXU3VFN7D1bWtFoZdf4HnT6uj/nAA==","tree_size":1052,"utc":"2026-11-09T00:09:50.975233Z","week":"2026-W45","week_root":"507219167012b14cf5b915cc4e25dc53ff2470d78db8c01617c81fdc544ec24a","week_size":163}

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