How this works / Signed record

Topic

Time-of-flight positron emission tomography

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
82c46a639f6fd1f2c6c4e5f93efaf610a76f3cc0784379dd43df49391264c57d
Content hash
837a12aedbb653fe986285ae9f2db1ec7963e2278268fb55677f12181b740fa6
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
277
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:52Z — the Bitcoin date is the one that counts