November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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밑바닥부터 시작하는 비트코인
156
result += tx_out.serialize()
result += int_to_little_endian(self.locktime, 4)
return result
Tx
를 직렬화하기 위해
TxIn
과
TxOut
의
serialize
()
메서드를 이용했습니다.
그런데 지금까지 트랜잭션 설명에서 어디에도 트랜잭션 수수료는 없다는 점이 이상합니다. 수
수료는 다음 절에서 설명하겠지만 입력과 출력으로 유추할 수 있습니다.
5.7
트랜잭션 수수료
비트코인 합의 규칙 중 하나는 코인베이스 트랜잭션
7
이 아닌 모든 트랜잭션의 입력 합은 출력
의 합보다 같거나 커야 한다는 것입니다. 그러나 입력과 출력이 같은 경우는 거의 없습니다. 그
이유는 그 차이가 수수료인데, 트랜잭션의 수수료가
0
이라면 채굴자가 트랜잭션을 블록에 포
함시킬 동기가 사라지기 때문입니다 (
9
장 참고 ). 수수료는 채굴자가 트랜잭션을 블록에 포함시
키도록 하는 인센티브입니다. 블록에 포함되지 않고 있는 트랜잭션 (멤풀 트랜잭션 )은 블록체
인의 부분이 아니고 따라서 확정되지 않은 상태입니다.
수수료는 단순히 입력의 합에서 출력의 합을 뺀 값입니다. 이 차이를 채굴자가 가져갑니다. 입
력은 금액 필드를 갖고 있지 않기 때문에 금액은 입력이 가리키는 이전 트랜잭션의 출력에서
찾아야 합니다. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.