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
- c1e2a1cd2e6fbd4139fbfdc11f91c70a9fb7e50f5c04e9ce96b450ca2deceb7a
- Content hash
- 8ad6b01b97a287966ad9a3c730680b51bb19c17f6fdf2026780529130fae5b4e
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 525
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:54Z — the Bitcoin date is the one that counts