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
- 1aed9ab6c669c89e0992e0b9fdfe4e3be9a54939e95a6cf5c1fc2ebe11b163ef
- Content hash
- 082b9ec376aab990aea0ebf0e9ec08821e595fe94b7fd884544d387ff2c7208e
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 637
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:56Z — the Bitcoin date is the one that counts