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
- b222ece2d5b92e3fefb12170a98ad32df64981761061bd249eb0a979dbae751b
- Content hash
- c749a66ef3ecb6e2d2cbd4f6473c628df3901494fe35bc7124b7421a43a8be60
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 385
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:53Z — the Bitcoin date is the one that counts