pub fn verify_cosignatures(
note: &Note,
witnesses: &[Verifier],
) -> Result<Vec<Cosignature>>Expand description
Checks the cosignature/v1 lines of note against witnesses: a line whose
name and key id match a witness has to verify over cosignature/v1,
time <t> and the note text. Returns each verified witness with its
timestamp, in note order; lines from unknown keys are ignored. A trusted
witness that signed nothing is not an error; a witness line that does not
verify is.