November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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393
부록
A
연습문제 해답
parent = merkle_parent(hashes[i], hashes[i + 1])
parent_level.append(parent)
return parent_level
연습문제
11. 3
merkle
_
root
함수를 작성하시오.
def merkle_root(hashes):
'''Takes a list of binary hashes and returns the merkle root
'''
current_level = hashes
while len(current_level) > 1:
current_level = merkle_parent_level(current_level)
return current_level[0]
연습문제
11. 4
Block
클래스에서
validate
_
merkle
_
root
메서드를 작성하시오.
class Block:
...
def validate_merkle_root(self):
hashes = [h[::-1] for h in self.tx_hashes]
root = merkle_root(hashes)
return root[::-1] == self.merkle_root
연습문제
11. 5
27
개의 단말 노드가 달린 머클트리를 구성하고 모든 노드를
None
값으로 초기화하시오. 그리
고 머클트리의 각 레벨을 출력하시오. ...