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Home»BITCOIN NEWS»Bitcoin Core-Error RPC Request: Essential Script Verification-Flag-Send (Incorrect SCHNORR Signature)
BITCOIN NEWS

Bitcoin Core-Error RPC Request: Essential Script Verification-Flag-Send (Incorrect SCHNORR Signature)

By Crypto FlexsApril 14, 20254 Mins Read
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Bitcoin Core-Error RPC Request: Essential Script Verification-Flag-Send (Incorrect SCHNORR Signature)
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I have three taproot addresses: one is 50 BTC, one acceptance, one is for change.

sender bcrt1p7d90fjh4k2uu7jjzw6hev8nnak2cultvcyjaj5zum696eqpwfausw79xuk
wif cULydXkHkv3h1jH7yVaGcNCvWHzbVsDiAxW76Mc8QrSqzNPU2sUG
recipient bcrt1p725t652m53g7j87n2ypm3x9pdl9f88c4c2hjyvymq78qhrc6tpsq5wp62r
change bcrt1pj5fle7sshyr04yershteu745zs2peguum7z575rydshtscmdjysq4eus02

I try to send 1 BTC and make a primitive trading for major path spending.

This is incomplete of the sender.

(
    
        "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)
  1. Signing 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 it

RPC Request Error: Essential Script Verification-Flag-Send (Invalved SCHNORR Signature)

But the transaction structure is valid. Signature, witnesses …


  "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"

help. Can bytes or data or order go wrong? Thank you very much!

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