November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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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.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.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.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.
9
장
블록
241
코인베이스 트랜잭션의 해제 스크립트를 보면 소속된 블록이 몇 번째 블록인지 알 수 있습니
다.
BIP0034
를 통해 서로 다른 블록의 코인베이스 트랜잭션은 서로 다른 해제 스크립트와 서
로 다른 트랜잭션
ID
를 갖게 됩니다. 이 규정을 지키지 않으면 서로 다른 블록이 동일한 코인
베이스 트랜잭션
ID
를 가질 수 있기에 반드시 지켜야 합니다.
연습문제
9.2
Tx
클래스의
coinbase
_
height
메서드를 작성하시오.
9.2
블록 헤더
블록은 트랜잭션의 묶음이며 블록 헤더는 블록에 포함된 트랜잭션에 대한 메타 데이터입니다.
[그림
9
-
2
]에서와 같이 블록 헤더는 다음과 같이 구성됩니다.
• 블록 버전 (
Version
)
• 이전 블록 해시값 (
Previous
block
)
• 머클루트 (
Merkle
root
)
• 타임스탬프 (
Timestamp
)
• 비트값 (
Bits
)
• 논스값 (
Nonce
)
그림
9-2
파싱된 블록
밑바닥부터 시작하는 비트코인
242
블록 헤더는 블록의 메타데이터입니다. [그림
9
-
2
]에서 보듯이 트랜잭션과는 달리 블록 헤더
의 필드는 고정 길이입니다. 블록 헤더의 길이는 ...
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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.