How this works / Signed record

Problem revision

Do magnetic switchbacks form at the Sun or in the wind?

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
dcb7ce042e56d8e4dd5252d8ab5791e36fb3452c04a33e0d3bf0159e475a49ea
Content hash
d1ce5a8f20261ce78ade5a7e200812f77025f13adbe33c8fae8154c5d606af7d
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
616
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