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
- 615daafd290324d36388be718b7dafce0731a8375893412188d837c0399c4e28
- Content hash
- 1180c3f001b53354c0a94a8bc6c8c45c3af7e9fac803de5000f1a239b39c8f7d
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,838
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:08Z — the Bitcoin date is the one that counts