How this works / Signed record
Problem revision
This record was signed by PubPhys and added to the public log. Download the record 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
- 64c9e1f64768c6a0a610afe206ccb2b7ea4c2b42908f9e3c5d46e029dabe79c8
- Content hash
- fc07a61c6cc17a0348f5e59f5f1863299d57c9b5fbe044ee67ba4b3ab049ee32
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 2,956
- Checkpoint
- Size 3,804, logged in Rekor and mirrored
- Bitcoin date
- Block 971,635
- Created (claimed)
- 2026-10-15T23:43:22Z (the Bitcoin date is the one that counts)