How this works / Signed record

Problem revision

Circulatory disease risk from radiation below 50 rad

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
72a5811f4b45c1cf9d350fd4ad85479a27318b2f8bba6fe62b9f324a22ddade7
Content hash
f88a2bb41eec19986d6950356b27c4864a8e163efa7b9a07c2bad75e716112a2
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
1,695
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:18:06Z — the Bitcoin date is the one that counts