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
- c6393ba8043847aa17fc549d1615cb495e58268e21ade26ba5f389f150a01924
- Content hash
- 3fe71898daa2848a6bc343c079f808caaa11f962b2cc9ad5d93a84b7a5fa2556
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 771
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Waiting for Bitcoin (usually a few hours)
- Created (claimed)
- 2026-10-03T07:17:57Z — the Bitcoin date is the one that counts