Programming Bitcoin 5장 Transactions을 위한 기본 내용

1. Bitcoin Transactions #1
2019.08.06

2. BITCOIN
BLOCK

3. Transaction
A Transaction is a transfer of Bitcoin value that is
broadcast to the network and collected into blocks
https://en.bitcoin.it/wiki/Transaction

4. transaction.h

5. Transaction

6. Transaction
Input
.
Output
C D
Spent
Unspent
#3
● Transaction은 Input과 Output으로 구성
● Input은 블록내의 Transaction의 Output과 연결
● Output은 address와 value가 지정
● 아무런 Input도 사용하지 않은 Output(Unspent)
이미 연결해서 사용한 Output(Spent) 존재
● UTXO(Unspent Transaction Output): 미사용 Output
● UTXO Set은 Leveldb로 별도 관리
.
Input
.
Output
A C
Spent
#1
Unspent
.
Input
.
Output
B C
Unspent
#2
Unspent
C의 잔고는?

7. Verification: ECDSA

8. Script Evaluation Stack

9. 010000000456919960ac691763688d3d3bcea9ad6ecaf875df5339e148a1fc61c6ed7a069e0100
00006a47304402204585bcdef85e6b1c6af5c2669d4830ff86e42dd205c0e089bc2a821657e951
c002201024a10366077f87d6bce1f7100ad8cfa8a064b39d4e8fe4ea13a7b71aa8180f012102f0
da57e85eec2934a82a585ea337ce2f4998b50ae699dd79f5880e253dafafb7feffffffeb8f51f4
038dc17e6313cf831d4f02281c2a468bde0fafd37f1bf882729e7fd3000000006a473044022078
99531a52d59a6de200179928ca900254a36b8dff8bb75f5f5d71b1cdc26125022008b422690b84
61cb52c3cc30330b23d574351872b7c361e9aae3649071c1a7160121035d5c93d9ac96881f19ba
1f686f15f009ded7c62efe85a872e6a19b43c15a2937feffffff567bf40595119d1bb8a3037c35
6efd56170b64cbcc160fb028fa10704b45d775000000006a47304402204c7c7818424c7f7911da
6cddc59655a70af1cb5eaf17c69dadbfc74ffa0b662f02207599e08bc8023693ad4e9527dc42c3
4210f7a7d1d1ddfc8492b654a11e7620a0012102158b46fbdff65d0172b7989aec8850aa0dae49
abfb84c81ae6e5b251a58ace5cfeffffffd63a5e6c16e620f86f375925b21cabaf736c779f88fd
04dcad51d26690f7f345010000006a47304402200633ea0d3314bea0d95b3cd8dadb2ef79ea833
1ffe1e61f762c0f6daea0fabde022029f23b3e9c30f080446150b23852028751635dcee2be669c
2a1686a4b5edf304012103ffd6f4a67e94aba353a00882e563ff2722eb4cff0ad6006e86ee20df
e7520d55feffffff0251430f00000000001976a914ab0c0b2e98b1ab6dbf67d4750b0a56244948
a87988ac005a6202000000001976a9143c82d7df364eb6c75be8c80df2b3eda8db57397088ac46
430600000000
Transaction
Sample
Version Input Length Previous Output Output Index
Script Length Input Script Language #1
Sequence
Previous Output Output Index Script Length
Input Script Language #2
Sequence Previous Output
Output Index Script Length
Input Script Language #3
Sequence Previous Output
Output Index Script Length
Input Script Language #4
Sequence Output Length Value Script Length
Value
Script Length
Output Script Language #1
Output Script Language #2
LockTime