How this works / Signed record
Problem revision
This record was signed by PubPhys and added to the public log. Download the proof and check it with the open verifier: it recomputes every fingerprint, checks the PubPhys signature against the published key, finds the entry in the log and checks the Bitcoin date, without relying on this site.
- Record hash
- b962fefc800c401b1acedf5a869815647d5146d2ee562d18e3d5f83bcc07ba1c
- Content hash
- 307baa3dc1c065e19ff21e59bc6036f4fd9b8f9a9c491d491f34ffe86fbc3ed5
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 404
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:53Z — the Bitcoin date is the one that counts