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
- dcfbb5294f3cf4fe3391ebc27b2d6b1d5f968b2e6cd83090ec46a66dbc2fec17
- Content hash
- cad1258c7a4ade8965fb561eb2a5659cb3022e35a8ffe3d87006a4112c80dad4
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,529
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:05Z — the Bitcoin date is the one that counts