How this works / Signed record

Problem revision

What caused the non-gravitational acceleration of 1I/'Oumuamua?

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
c6d8496825d990027b7b5625c8fe39f1700448c168dc406ec923aa52ba3b7cec
Content hash
acb120a2cdc469c6cd371b04c2351a60eefcbc2fae84cbe9c80f4fd18b9a7254
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
563
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:55Z — the Bitcoin date is the one that counts