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
d33da8aefbfd0fb0d1f0e14a5d5460f20a6004f13cb5ed6d8d4eca69ef2f6716
Content hash
316db19423b15078afb81799067e3ffd7515b1014f58f0054ff0113a60909cc8
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
3,358
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)