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
- 9d8180f45ec877e986c9c218bb4d5046a7bdc3ebd4894cbae5ac4b26c85cc6ed
- Content hash
- 88d69868e0d42a3e4035395983883166cbdd4ef6da2dce6c84734ae1220cb647
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,883
- 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