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
- ffcb4b5901ff4d975a80b9b9aa87d69f8f886a206f8a220112b216d19e9ddb1b
- Content hash
- 7507f32c4e05979cc9566d73aee1bb01227f227a18d4e4e274fc420ca9e16c04
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,385
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:03Z — the Bitcoin date is the one that counts