verifier

var (
	// ErrNeighborsLen occurs when the neighbor list length is longer than
	// the maximum allowed value.
	ErrNeighborsLen = fmt.Errorf("Neighbors len > %d", sparse.IndexLen)
	// ErrIndexBit occurs when the string-formatted index contains an invalid
	// bit (character), i.e., other than '0' or '1'.
	ErrIndexBit = errors.New("Invalid index bit")
	// ErrInvalidProof occurs when the provided tree proof cannot be
	// verified. This can be caused by an invalid neighbor tree or root.
	ErrInvalidProof = errors.New("Invalid proof")
)