checkpoints

func Combine ¶

func Combine(cps [][]byte, logSigV note.Verifier, witSigVs note.Verifiers) ([]byte, error)

Combine returns a checkpoint with the union of all signatures on the provided checkpoints from known witnesses. Signatures from unknown witnesses are discarded.

Combined signatures will always be ordered with the log signature first, followed by witness signatures ordered by their key hash (ascending).

All cps:

• MUST contain identical checkpoint bodies
• MUST be signed by the log whose verifier is provided.
• MAY be signed by one or more witnesses.

if this isn't the case an error is returned.