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
- d884a85520382e2f72c2514be779b97400b880e8966516818b98956a4ad87ed2
- Content hash
- 4105ac93597a9f4819a58a3c5ecde670ad657f8b7b247fe87a4b50e8b754204d
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 408
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Waiting for Bitcoin (usually a few hours)
- Created (claimed)
- 2026-10-03T07:17:53Z — the Bitcoin date is the one that counts