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
- c87e21e81cb62728ed83730c6a5efff14748d7a8613a570781f0647ff04f25d4
- Content hash
- 4c578e47d79a2bc4048e0909e2a3999868c8a4d63676deabb8a0b1ac1f628936
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 508
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:54Z — the Bitcoin date is the one that counts