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
45ba10864d64f7c9bd954333e74e8c05a1b01a308c5e385714e62d778c4d7c22
Content hash
e5f1bfa1ba48000b80bfdc44da2ede973891ecf3adbf8ef80c399e0431ad404d
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
2,992
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)