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
- 9bf81c4beb0aa8d42b5d0fdc7c5fc732bf15caaf69084b2a121b03c759b25a39
- Content hash
- 5c1962773791db80537ed957718372703cb4b9df93e7ab583000390580776cb9
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 837
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:58Z — the Bitcoin date is the one that counts