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
- 4f9d3a2a255c76bfee5f3d56ec9e363dbe4cc640e72f0b5676d94a88db17ec38
- Content hash
- 892389da8db195fa8f0b243d17ce9bf938c52bfcb97aafa6c631d3a3b0959a96
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 584
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:55Z — the Bitcoin date is the one that counts