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
- 5021afa6d78c29a3b9b1985f1e51b5c6eb7acb66a2fbb10b01e0ec1542ae0704
- Content hash
- 17d0427cfd110dac67a19de334878a03693c9a7d19f2b903914a31de8caf0c2c
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,316
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:02Z — the Bitcoin date is the one that counts