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
- 0cf7dc74b6f5d37a1c4c4c2bd94a8e4a25dfd4151b7b59a5e369f1f172fd2b30
- Content hash
- 0e59af04f42c8f435d29bbe10bc7a12f2beae27efed2b92e5aa5bc74ee44a0f7
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 2,061
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:10Z — the Bitcoin date is the one that counts