I’m using Bitcoin Last Crate to build my own CLI wallet.

With my features I’m building TxInfor me Transactionit’s actually script_sig Do you need it in the following steps? Or do you enter it when you sign the transaction in a later step?

let txins: Vec = selected_utxos
        .iter()
        .map(|utxo| TxIn {
            previous_output: bitcoin::OutPoint {
                txid: bitcoin::Txid::from_str(&utxo.txid).expect("Invalid txid format"),
                vout: utxo.vout,
            },
            script_sig: ScriptBuf::new(),
            sequence: Sequence::MAX,
            witness: Witness::new(),
        })
        .collect();

Is it okay to put it on? ScriptBuf::new() As a placeholder?

No, when transferring or selling Bitcoin, you do not need to pay any additional fees in advance first.

Being asked to pay with extra money for any kind of fee is the trick of a confident trickster (conmen, con artist, con artist)

A regular Bitcoin transaction deducts a small amount of Bitcoin from the balance Transaction fee (Not a transfer fee) But this is not an extra thing you pay. Currently, transaction fees are very high at around $30 per transaction (it was under $1 a year ago). Actual fees vary depending on the complexity of the transaction and the speed at which the transaction is processed. You should not make any further payments and will need to automatically deduct any additional amounts from your Bitcoin balance. This is transaction It’s not a price transfer commission. Regular Bitcoin transactions do not have transfer fees or transfer codes.

When dealing with any business, there is no surprise fee. You should be able to find business conditions on their webpage Without talking to anyone in the business. The fees that come as a surprise are signs of a possible scam.

I have 3 Taproot addresses: one is 50 btc, one is RECEPIENT, and the other is for change

sender bcrt1p7d90fjh4k2uu7jjzw6hev8nnak2cultvcyjaj5zum696eqpwfausw79xuk
wif cULydXkHkv3h1jH7yVaGcNCvWHzbVsDiAxW76Mc8QrSqzNPU2sUG
recipient bcrt1p725t652m53g7j87n2ypm3x9pdl9f88c4c2hjyvymq78qhrc6tpsq5wp62r
change bcrt1pj5fle7sshyr04yershteu745zs2peguum7z575rydshtscmdjysq4eus02

I’m trying to send one BTC and create a raw transaction for the spend type of keypath

This is at the sender’s hands:

(
    {
        "txid": "6ee6185784989263847ebd3d2aadb83bdbe80ed0011821085975226ae994e259",
        "vout": 0,
        "address": "bcrt1p7d90fjh4k2uu7jjzw6hev8nnak2cultvcyjaj5zum696eqpwfausw79xuk",
        "label": "",
        "scriptPubKey": "5120f34af4caf5b2b9cf4a4276af961e73ed958e7d6cc125d9505cde8bac802e4f79",
        "amount": 50,
        "confirmations": 101,
        "spendable": true,
        "solvable": true,
        "desc": "rawtr(f34af4caf5b2b9cf4a4276af961e73ed958e7d6cc125d9505cde8bac802e4f79)#qrffuhzp",
        "parent_descs": (
            "addr(bcrt1p7d90fjh4k2uu7jjzw6hev8nnak2cultvcyjaj5zum696eqpwfausw79xuk)#cx2kp4mn"
        ),
        "safe": true
    }
)

1. Create a transaction object

     (CREATE TRANSACTION START)
    -- Amount to send (sats): 100000000
    -- Fee (sats): 1000000
    -- Get UTXO id for pay: 6ee6185784989263847ebd3d2aadb83bdbe80ed0011821085975226ae994e259
    -- Reversed UTXO id: 59e294e96a22755908211801d00ee8db3bb8ad2a3dbd7e84639298845718e66e
    -- Full generated tx: {
        "version":2,
        "inputs":
            ({
                "txid":"59e294e96a22755908211801d00ee8db3bb8ad2a3dbd7e84639298845718e66e",
                "vout":0,
                "scriptSig":"",
                "sequence":4294967295
            }),
        "outputs":({
                "value":100000000,
                "scriptPubKey":"51209545ea8add228f48fe9a881dc4c50b7e549cf8ae15791184d83c705c78d2c300"
            },{
                "value":4899000000,
                "scriptPubKey":"5120a89fe7d085c837d4991c2ebcf3d5a0a0a0e51ce6fc2a7a83236175c31b6c8900"
            }),
        "locktime":0}
    (CREATE TRANSACTION END)

2. Sign and Serialization

(SIGN AND SERIALIZE TRANSACTION START)
(INPUT 0)
-- txid (32 bytes): 59e294e96a22755908211801d00ee8db3bb8ad2a3dbd7e84639298845718e66e
-- Vout (4 bytes LE32): 00000000
-- ScriptSigLength (1 bytes Compact size): 00
-- ScriptSig (0 bytes):
-- Sequence (4 bytes LE32): ffffffff
-- (SIGHASH FOR 0 INPUT START)
---- Version (4 bytes LE32): 02000000
---- LockTime (4 bytes LE32): 00000000
---- InputIdx (4 bytes LE32): 00000000
---- SighashTypeBuf (1 bytes): 00
---- (HASH PREVOUTS (txid + LE32(vout)) START)
------ Prevout for 0 input (36 bytes): 59e294e96a22755908211801d00ee8db3bb8ad2a3dbd7e84639298845718e66e00000000
---- (HASH PREVOUTS END)
---- Finally hashPrevouts (32 bytes): 35bb28a690e32f668589a79a1b4f7ba82c00c08fe39b29672e861e90526991a9
---- (HASH AMOUNTS (LE64(amount))) START)
------ Amount for 0 input (8 bytes LE64): 3200000000000000
---- (HASH AMOUNTS END)
---- Finally hashAmounts (32 bytes): 0cbbab9d99fb661a1686f17ccaaf8a9d069aa8cb755925045a1d049c060b9e67
---- (HASH SCRIPT PUB KEYS (OP_1 + PUSH_32 + pubKeyHash) START)
------ ScriptPubKey for 0 input (34 bytes): 51209a57a657ad95ce7a5213b57cb0f39f6cac73eb66092eca82e6f45d6401727bc8
---- (HASH SCRIPT PUB KEYS END)
---- Finally hashScriptPubKeys (32 bytes): 96d403e277844293f22ba2b1914d646d8353adbe2c49a22a7f421a8c97221eaa
---- (HASH SEQUENCES (LE32(sequence)) START)
------ Sequence for 0 input (4 bytes LE32): ffffffff
---- (HASH SEQUENCES END)
---- Finally hashSequences (32 bytes): ad95131bc0b799c0b1af477fb14fcf26a6a9f76079e48bf090acb7e8367bfd0e
---- (HASH OUTPUTS (LE64(amount), CompactSize(size), scriptPubKey) START)
------ Amount of 0 out (8 bytes LE64): 00e1f50500000000
------ ScriptPubKey of 0 out (34 bytes): 51209545ea8add228f48fe9a881dc4c50b7e549cf8ae15791184d83c705c78d2c300
------ Size of 0 out (1 bytes CompactSize): 22
------ Output of 0 out (43 bytes): 00e1f505000000002251209545ea8add228f48fe9a881dc4c50b7e549cf8ae15791184d83c705c78d2c300
------ Amount of 1 out (8 bytes LE64): c0ce002401000000
------ ScriptPubKey of 1 out (34 bytes): 5120a89fe7d085c837d4991c2ebcf3d5a0a0a0e51ce6fc2a7a83236175c31b6c8900
------ Size of 1 out (1 bytes CompactSize): 22
------ Output of 1 out (43 bytes): c0ce002401000000225120a89fe7d085c837d4991c2ebcf3d5a0a0a0e51ce6fc2a7a83236175c31b6c8900
---- (HASH OUTPUTS END)
---- Finally hashOutputs (32 bytes): c74c74b357372c390436f57e6046707b88dc74a7199e9194922818188192de44
---- Preimage (174 bytes): 02000000000000000035bb28a690e32f668589a79a1b4f7ba82c00c08fe39b29672e861e90526991a90cbbab9d99fb661a1686f17ccaaf8a9d069aa8cb755925045a1d049c060b9e6796d403e277844293f22ba2b1914d646d8353adbe2c49a22a7f421a8c97221eaaad95131bc0b799c0b1af477fb14fcf26a6a9f76079e48bf090acb7e8367bfd0ec74c74b357372c390436f57e6046707b88dc74a7199e9194922818188192de440000000000
---- TaggedHash (32 bytes): 7f73f0e9137223806b5c6c4f157f30ed439949decb84b4ab1eff249fa61692c1
-- (SIGHASH FOR 0 INPUT END)
-- Sighash (32 bytes): 7f73f0e9137223806b5c6c4f157f30ed439949decb84b4ab1eff249fa61692c1
-- SignatureObject (64 bytes): 4227542a9daebfbf518e12b016f09f5f7feaae42bdf5874039dfd1ff7ec66b63b625e27be13a04b3d58c81891aca8908cd5ca548cfc3f080fd2d0bcfc0045138
-- Pubkey (32 bytes): f34af4caf5b2b9cf4a4276af961e73ed958e7d6cc125d9505cde8bac802e4f79
-- VALID? true
-- Witness count for 0 input (1 bytes Compact Size): 01
-- Signature len for 0 input (1 bytes Compact Size): 40
-- Signature for 0 input (64 bytes): 4227542a9daebfbf518e12b016f09f5f7feaae42bdf5874039dfd1ff7ec66b63b625e27be13a04b3d58c81891aca8908cd5ca548cfc3f080fd2d0bcfc0045138
(OUTPUT 0)
-- Value (8 bytes LE64): 00e1f50500000000
-- ScriptPubKey (34 bytes): 51209545ea8add228f48fe9a881dc4c50b7e549cf8ae15791184d83c705c78d2c300
-- ScriptPubKeySize (1 bytes Compact size): 22
(OUTPUT 1)
-- Value (8 bytes LE64): c0ce002401000000
-- ScriptPubKey (34 bytes): 5120a89fe7d085c837d4991c2ebcf3d5a0a0a0e51ce6fc2a7a83236175c31b6c8900
-- ScriptPubKeySize (1 bytes Compact size): 22
Locktime (4 bytes LE32): 00000000
Marker (1 bytes): 00
Flag (1 bytes): 01
Version (4 bytes LE32): 02000000
InputsLen (1 bytes Compact Size): 01
OutputsLen (1 bytes Compact Size): 02
Finally rawTx (205 bytes): 0200000000010159e294e96a22755908211801d00ee8db3bb8ad2a3dbd7e84639298845718e66e0000000000ffffffff0200e1f505000000002251209545ea8add228f48fe9a881dc4c50b7e549cf8ae15791184d83c705c78d2c300c0ce002401000000225120a89fe7d085c837d4991c2ebcf3d5a0a0a0e51ce6fc2a7a83236175c31b6c89000140eddd2049ece47dd2fea1fb2e5f9d0c475e32431a472c64d543160097359f266f13c3a409de8366d09b105741ecaee1cfac6542ed1e084cee58310d82da28775000000000
(SIGN AND SERIALIZE TRANSACTION END)

And in the end I got

Error creating RPC request: Required script-verify-flag-failed (invalid schnorr signature)

However, the transaction structure is valid, it is both a signature and a witness.

{
  "version": "02000000",
  "marker": "00",
  "flag": "01",
  "inputcount": "01",
  "inputs": (
    {
      "txid": "59e294e96a22755908211801d00ee8db3bb8ad2a3dbd7e84639298845718e66e",
      "vout": "00000000",
      "scriptsigsize": "00",
      "scriptsig": "",
      "sequence": "ffffffff"
    }
  ),
  "outputcount": "02",
  "outputs": (
    {
      "amount": "00e1f50500000000",
      "scriptpubkeysize": "22",
      "scriptpubkey": "51209545ea8add228f48fe9a881dc4c50b7e549cf8ae15791184d83c705c78d2c300"
    },
    {
      "amount": "c0ce002401000000",
      "scriptpubkeysize": "22",
      "scriptpubkey": "5120a89fe7d085c837d4991c2ebcf3d5a0a0a0e51ce6fc2a7a83236175c31b6c8900"
    }
  ),
  "witness": (
    {
      "stackitems": "01",
      "0": {
        "size": "40",
        "item": "4227542a9daebfbf518e12b016f09f5f7feaae42bdf5874039dfd1ff7ec66b63b625e27be13a04b3d58c81891aca8908cd5ca548cfc3f080fd2d0bcfc0045138"
      }
    }
  ),
  "locktime": "00000000"
}

Please help. Could there be something wrong with your bytes, data, or order? thank you very much!

I would like to send a raw transaction, but I have a problem. I’m using a RegTest node. P2PKH address was generated in seed breeding
mjnJj4TFyU4jYrTVUHMA632UmuUMssZHq4

Next, as usual, generateToAddress 101 block

I’ve never touched

(
    {
        "txid": "6481bbba699177c735c3e336735674641459bbbe2aba85a1b8be233df8f36938",
        "vout": 0,
        "address": "mjnJj4TFyU4jYrTVUHMA632UmuUMssZHq4",
        "label": "",
        "scriptPubKey": "76a9142ec7cc30ef662cf7c757e3460995f2682871207688ac",
        "amount": 50,
        "confirmations": 101,
        "spendable": true,
        "solvable": false,
        "parent_descs": (
            "addr(mjnJj4TFyU4jYrTVUHMA632UmuUMssZHq4)#rwelz9me"
        ),
        "safe": true
    }
)

And then I make a transaction. Just send a little Saturday to another empty address

My Step: 1. Create an empty transaction with one input and two outputs (one for change)

CREATE TRANSACTION START
== Amount to send (sats): 100000000
== Fee (sats): 1000000
== Get UTXO id for pay: 6481bbba699177c735c3e336735674641459bbbe2aba85a1b8be233df8f36938
== Reversed UTXO id: 3869f3f83d23beb8a185ba2abebb59146474567336e3c335c7779169babb8164
== Full generated tx: {"version":1,"inputs":({"txid":"3869f3f83d23beb8a185ba2abebb59146474567336e3c335c7779169babb8164","vout":0,"scriptSig":"76a9142ec7cc30ef662cf7c757e3460995f2682871207688ac","sequence":4294967295}),"outputs":({"value":100000000,"scriptPubKey":"76a914796e2d78cff63c21f8ee823052b5362bc2cc2af388ac"},{"value":4899000000,"scriptPubKey":"76a914929b53a5d57f12e924b9c6d58524faec5c5cfee788ac"}),"locktime":0}
CREATE TRANSACTION END

2. Next, serialize it

SERIALIZATION START
== Version (4 bytes LE):  01000000
== Input Count (1 bytes Compact Size): 01
==== TXID (32 bytes Natural Byte Order): 3869f3f83d23beb8a185ba2abebb59146474567336e3c335c7779169babb8164
==== VOut (4 bytes LE):  00000000
==== ScriptSig Size (1 bytes Compact Size): 19
==== ScriptSig (25 bytes): 76a9142ec7cc30ef662cf7c757e3460995f2682871207688ac
==== Sequence (4 bytes LE):  ffffffff
== Output Count: (1 bytes Compact Size): 02
==== Amount (8 bytes LE): 00e1f50500000000
==== ScriptPubKey Size (1 bytes Compact Size): 19
==== ScriptPubKey (25 bytes): 76a914796e2d78cff63c21f8ee823052b5362bc2cc2af388ac
==== Amount (8 bytes LE): c0ce002401000000
==== ScriptPubKey Size (1 bytes Compact Size): 19
==== ScriptPubKey (25 bytes): 76a914929b53a5d57f12e924b9c6d58524faec5c5cfee788ac
==== Locktime (4 bytes LE): 00000000
== SIGHASH_ALL (4 bytes LE):  01000000
== Final Buffer: 01000000013869f3f83d23beb8a185ba2abebb59146474567336e3c335c7779169babb8164000000001976a9142ec7cc30ef662cf7c757e3460995f2682871207688acffffffff0200e1f505000000001976a914796e2d78cff63c21f8ee823052b5362bc2cc2af388acc0ce0024010000001976a914929b53a5d57f12e924b9c6d58524faec5c5cfee788ac0000000001000000
SERIALIZATION END

3. Please sign

 SIGNING START
== WIF: cRcGtESEBF1ztuwtftM7Ds9Mcu1x6PtCK1TiXKTvShZF43ZtVYVY
== Private Key: 7828a7d17099c3d5baeaa4a8de47d97038e9cefd62d5d04e4736e47fe0a81779
== Public Key: 03a1dbe0aea6bf483bc00ed3d101f54e0b1e06e9c2e5103de5950b135ff055f107
== Double sha256 of serialized tx: 08b7c9af7310ff1dbeea59575dd851565b52046a03631351b5aec94100655b91
== Der signature with sighash: 304502210085016fb2b7cc850ca2560da9e5873c922643388af63ae5a496899acd6e94537c022077df3eba94465a22f764338a9200865a591c7998206c9fbcf22080d9152f45af01
== All size (1 bytes Compact Size): 6b
== Sig len (1 bytes Compact Size): 48
== Pub Key (1 bytes Compact Size): 21
== ScriptSig Size (1 bytes Compact Size): 6c
== ScriptSig (108 bytes): 6b48304502210085016fb2b7cc850ca2560da9e5873c922643388af63ae5a496899acd6e94537c022077df3eba94465a22f764338a9200865a591c7998206c9fbcf22080d9152f45af012103a1dbe0aea6bf483bc00ed3d101f54e0b1e06e9c2e5103de5950b135ff055f107
SIGNING END

what happened ? der signature? Does it have it in my data and Argo? please help me. I wrote the code to send raw transactions, investigation procedures, but I think I made a mistake somewhere

4. Final Hex and Command

bitcoin-cli -regtest \
       -rpcuser=bitcoin \
       -rpcpassword=ggbUUhXBbgUVDd2vdaMRb-KVYusRXbV-fVgjdMMdOWA \
       -rpcwallet="app_wallet" \
        sendrawtransaction 01000000013869f3f83d23beb8a185ba2abebb59146474567336e3c335c7779169babb8164000000006b48304502210085016fb2b7cc850ca2560da9e5873c922643388af63ae5a496899acd6e94537c022077df3eba94465a22f764338a9200865a591c7998206c9fbcf22080d9152f45af012103a1dbe0aea6bf483bc00ed3d101f54e0b1e06e9c2e5103de5950b135ff055f107ffffffff0200e1f505000000001976a914796e2d78cff63c21f8ee823052b5362bc2cc2af388acc0ce0024010000001976a914929b53a5d57f12e924b9c6d58524faec5c5cfee788ac00000000 0.10 200000