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
- 07fdcb288b3468f5a4e24855916189441c743d79fbc787a2ee78483fd7e2a878
- Content hash
- b25e585c40be0199bfd183e19ecaf80032f9a3d9826815321d0f61eea58c0c7e
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 2,710
- 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)