bitcoin-dev-project / bitcoiner-intro-to-rust

The Bitcoiner's Introduction to Rust
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Wrong output in Chapter 14 #36

Closed edilmedeiros closed 3 months ago

edilmedeiros commented 3 months ago

This is trying to decode the string in https://github.com/sb1752/bitcoiner-intro-to-rust/blob/8f0c2c87ac2ea8aa51d5fdf989dbfe8444a089af/14_json_serialization.md?plain=1#L105C28-L105C770.

    let transaction_hex = "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";

Manual inspection say the first input should have txid = 42d5c1d6f7308bbe95c0f6e1301dd73a8da77d2155b0773bc297ac47f9cd7380 (in reverse...)

Original text: https://github.com/sb1752/bitcoiner-intro-to-rust/blob/8f0c2c87ac2ea8aa51d5fdf989dbfe8444a089af/14_json_serialization.md?plain=1#L185C1-L198C2

Inputs: [
  {
    "txid": "f8c693771b2992a11b53c045369ab31a920de1d921ff3c148a9d0487c8f90baf",
    "output_index": 16,
    "script": "483045022100904a2e0e8f597fc1cc271b6294b097a6edc952e30c453e3530f92492749769a8022018464c225b03c28791af06bc7fed129dcaaeff9ec8135ada1fb11762ce081ea9014104da289192b0845d5b89ce82665d88ac89d757cfc5fd997b1de8ae47f7780ce6a32207583b7458d1d2f3fd6b3a3b842aea9eb789e2bea57b03d40e684d8e1e0569",
    "sequence": 4294967295
  },
  {
    "txid": "e51d2177332baff9cfbbc08427cf0d85d28afdc81411cdbb84f40c95858b080d",
    "output_index": 1,
    "script": "4830450220369df7d42795239eabf9d41aee75e3ff20521754522bd067890f8eedf6044c6d0221009acfbd88d51d842db87ab990a48bed12b1f816e95502d0198ed080de456a988d014104e0ec988a679936cea80a88e6063d62dc85182e548a535faecd6e569fb565633de5b4e83d5a11fbad8b01908ce71e0374b006d84694b06f10bdc153ca58a53f87",
    "sequence": 4294967295
  }
]

My output:

Version: 1
Inputs [
  {
    "txid": "8073cdf947ac97c23b77b055217da78d3ad71d30e1f6c095be8b30f7d6c1d542",
    "output_index": 1,
    "script_sig": "4730440220771361aae55e84496b9e7b06e0a53dd122a1425f85840af7a52b20fa329816070220221dd92132e82ef9c133cb1a106b64893892a11acf2cfa1adb7698dcdc02f01b0121030077be25dc482e7f4abad60115416881fe4ef98af33c924cd8b20ca4e57e8bd5",
    "sequence": 4294967294
  },
  {
    "txid": "9cb414caf4a633b3446c22d6174be670b3e0e746024cc0c1ef0e15f3c57cc875",
    "output_index": 0,
    "script_sig": "483045022100e0d85fece671d367c8d442a96230954cdda4b9cf95e9edc763616d05d93e944302202330d520408d909575c5f6976cc405b3042673b601f4f2140b2e4d447e671c47012103c43afccd37aae7107f5a43f5b7b223d034e7583b77c8cd1084d86895a7341abf",
    "sequence": 4294967294
  }
]

I'm fixing this in a PR, but wanted to check first.

edilmedeiros commented 3 months ago

It doesn't happen everywhere, in the final code block in chapter 14, the json output seem fine.

sb1752 commented 3 months ago

Oh this could be because I changed the transaction example I was using and went back and updated everywhere. I was initially using an arbitrary transaction from mainnet but then decided that that is not good for privacy so switched to an arbitrary testnet example.

I probably just forgot to update this section.

edilmedeiros commented 3 months ago

Fixed in #37.