November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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밑바닥부터 시작하는 비트코인
388
연습문제
9.12
아래와 같이
2016
블록의 난이도 조정 기간의 첫 번째와 마지막 블록이 주어졌을 때 비트값을
계산하시오.
•
Block
471744
:
000000203471101bbda3fe307664b3283a9ef0e97d9a38a7eacd88000000000000000000
10c8aba8479bbaa5e0848152fd3c2289ca50e1c3e58c9a4faaafbdf5803c5448ddb84559
7e8b0118e43a81d3
•
Block
473759
:
02000020f1472d9db4b563c35f97c428ac903f23b7fc055d1cfc26000000000000000000
b3f449fcbe1bc4cfbcb8283a0d2c037f961a3fdf2b8bedc144973735eea707e126425859
7e8b0118e5f00474
>>> from io import BytesIO
>>> from block import Block
>>> from helper import TWO_WEEKS
>>> from helper import target_to_bits
>>> block1_hex = '000000203471101bbda3fe307664b3283a9ef0e97d9a38a7eacd88000000\
00000000000010c8aba8479bbaa5e0848152fd3c2289ca50e1c3e58c9a4faaafbdf5803c5448dd\ ...