arno/bitcoinbook
1
0
Fork 0
mirror of https://github.com/bitcoinbook/bitcoinbook synced 2024-11-23 00:28:14 +00:00
Code Issues Releases Wiki Activity

Merge pull request #709 from rating89us/patch-8

Browse Source 
ch10: 'support'->'provide(s) support for'; add 'string'; add 'finally,'
This commit is contained in:
Will Binns 2021-02-20 21:36:25 +00:00 committed by GitHub
commit da6d7cf457
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
ch10.asciidoc
View File

@ -338,7 +338,7 @@ The first byte, +03+, instructs the script execution engine to push the next thr
The next few hexadecimal digits (+0385840206+) are used to encode an extra _nonce_ (see <<extra_nonce>>), or random value, used to find a suitable Proof-of-Work solution. The next few hexadecimal digits (+0385840206+) are used to encode an extra _nonce_ (see <<extra_nonce>>), or random value, used to find a suitable Proof-of-Work solution.
((("bitcoin improvement proposals", "Pay to Script Hash (BIP-16)")))((("bitcoin improvement proposals", "CHECKHASHVERIFY (BIP-17)")))((("CHECKHASHVERIFY (CHV)")))((("Pay-to-Script-Hash (P2SH)", "coinbase data")))The final part of the coinbase data (+2f503253482f+) is the ASCII-encoded string pass:[<span class="keep-together"><code>/P2SH/</code></span>], which indicates that the mining node that mined this block supports the P2SH improvement defined in BIP-16. The introduction of the P2SH capability required signaling by miners to endorse either BIP-16 or BIP-17. Those endorsing the BIP-16 implementation were to include +/P2SH/+ in their coinbase data. Those endorsing the BIP-17 implementation of P2SH were to include the string +p2sh/CHV+ in their coinbase data. The BIP-16 was elected as the winner, and many miners continued including the string +/P2SH/+ in their coinbase to indicate support for this feature. ((("bitcoin improvement proposals", "Pay to Script Hash (BIP-16)")))((("bitcoin improvement proposals", "CHECKHASHVERIFY (BIP-17)")))((("CHECKHASHVERIFY (CHV)")))((("Pay-to-Script-Hash (P2SH)", "coinbase data")))The final part of the coinbase data (+2f503253482f+) is the ASCII-encoded string pass:[<span class="keep-together"><code>/P2SH/</code></span>], which indicates that the mining node that mined this block provides support for the P2SH improvement defined in BIP-16. The introduction of the P2SH capability required signaling by miners to endorse either BIP-16 or BIP-17. Those endorsing the BIP-16 implementation were to include the string +/P2SH/+ in their coinbase data. Those endorsing the BIP-17 implementation of P2SH were to include the string +p2sh/CHV+ in their coinbase data. Finally, the BIP-16 was elected as the winner, and many miners continued including the string +/P2SH/+ in their coinbase to indicate that they provide support for this feature.
<<satoshi_words>> uses the libbitcoin library introduced in <<alt_libraries>> to extract the coinbase data from the genesis block, displaying Satoshi's message. Note that the libbitcoin library contains a static copy of the genesis block, so the example code can retrieve the genesis block directly from the library. <<satoshi_words>> uses the libbitcoin library introduced in <<alt_libraries>> to extract the coinbase data from the genesis block, displaying Satoshi's message. Note that the libbitcoin library contains a static copy of the genesis block, so the example code can retrieve the genesis block directly from the library.