Privacy-Preserving Redactable Blockchain for Internet of Things

Algorithm 3

(implements ).

	Input: Chain of length .
	Output: 0/1
(1)	;
(2)	if then
(3)	return ;
(4)	while do
(5)	Parse ;
(6)	if then
(7)	return 0
(8)	if then
(9)	;
(10)	else if then
(11)	;
(12)	else
(13)	return 0;
(14)	return 1;
(15)	return 1