How this works / Signed record

Problem revision

Measure the gravity of a mass that is in superposition

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
18a481167193f5a6b3195ce0b7a7bf7224e59db1d998673fe38ffafdb1afb07d
Content hash
3648daedf58c133774820deb6a7006afdf023cbeb0e1631219a6d1af58a2ce29
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
2,002
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:18:10Z — the Bitcoin date is the one that counts