How this works / Signed record

Problem revision

What is the mass of the lightest neutrino?

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
02ea08734e6f7503d0222ff513d71aa481eb674b5da50e563ee8a8a626fb168a
Content hash
8b2e8bfaded3546c81f2c8e7976df49df2b9c460f2b52f847a2e7de2d8641b0d
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
1,570
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:18:05Z — the Bitcoin date is the one that counts
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