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
- 9b02a9f260b026e83eb04e129e945b0906448c96d261576f556fa18cef6132b2
- Content hash
- cd08384882f5984f4720163d6164c8fd612b8a624c8839eff37ab61818d55b84
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,679
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:06Z — the Bitcoin date is the one that counts