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
- 8098914e7f4b02ebc6af9b73e881d5c785d666c1e1dffc257dd0b5c27dcb7631
- Content hash
- 27bc05741d5477f05a41ffaee408787450fcc0df2e28acbe9e95bcdd1bffe7e5
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,156
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:01Z — the Bitcoin date is the one that counts