• About
  • FAQ
  • Earn Bitcoin while Surfing the net
  • Buy & Sell Crypto on Paxful
Newsletter
Approx Foundation
  • Home
    • Home – Layout 1
  • Bitcoin
  • Ethereum
  • Regulation
  • Market
  • Blockchain
  • Business
  • Guide
  • Contact Us
No Result
View All Result
  • Home
    • Home – Layout 1
  • Bitcoin
  • Ethereum
  • Regulation
  • Market
  • Blockchain
  • Business
  • Guide
  • Contact Us
No Result
View All Result
Approx Foundation
No Result
View All Result
Home Bitcoin

bitcoin core – PSBT Transaction RPC Error: bad-txns-inputs-missingorspent

Moussa by Moussa
February 7, 2024
in Bitcoin
0
peer discovery – how to obtain the IP addresses of nodes for mining pools?
189
SHARES
1.5k
VIEWS
Share on FacebookShare on Twitter


I want to create a PSBT transaction.
But get the error when to call sendrawtransaction method.

I used Golang package: github.com/btcsuite/btcd

This is my code:
enter image description here
PSBT inputs

enter image description here
PSBT outputs

Then I passed them to the function.

func GenerateSignedOwnerTx(ins []*TxInput, outs []*TxOutput, network *chaincfg.Params) (string, error) {
var inputs []*wire.OutPoint
var nSequences []uint32
prevOuts := make(map[wire.OutPoint]*wire.TxOut)
for _, in := range ins {
    var prevOut *wire.OutPoint
    txHash, err := chainhash.NewHashFromStr(in.TxId)
    if err != nil {
        panic(err)
    }
    prevOut = wire.NewOutPoint(txHash, in.VOut)
    inputs = append(inputs, prevOut)

    prevPkScript, err := AddrToPkScript(in.Address, network)
    if err != nil {
        panic(err)
    }
    witnessUtxo := wire.NewTxOut(in.Amount, prevPkScript)
    prevOuts[*prevOut] = witnessUtxo

    nSequences = append(nSequences, wire.MaxTxInSequenceNum)
}

var outputs []*wire.TxOut
for _, out := range outs {
    pkScript, err := AddrToPkScript(out.Address, network)
    if err != nil {
        panic(err)
    }
    outputs = append(outputs, wire.NewTxOut(out.Amount, pkScript))
}

bp, err := psbt.New(inputs, outputs, int32(2), uint32(0), nSequences)
if err != nil {
    panic(err)
}

updater, err := psbt.NewUpdater(bp)
if err != nil {
    panic(err)
}

prevOutputFetcher := txscript.NewMultiPrevOutFetcher(prevOuts)

for i, in := range ins {

    if err = signInput(updater, i, in, prevOutputFetcher, txscript.SigHashAll, network); err != nil {
        panic(err)
    }

    if err = psbt.Finalize(bp, i); err != nil {
        panic(err)
    }
}

fmt.Println("signed bp base64 encode:")
fmt.Println(bp.B64Encode())
if err = psbt.MaybeFinalizeAll(bp); err != nil {
    return "", err
}

buyerSignedTx, err := psbt.Extract(bp)
if err != nil {
    return "", err
}

var buf bytes.Buffer
if err := buyerSignedTx.Serialize(&buf); err != nil {
    return "", err
}

return hex.EncodeToString(buf.Bytes()), nil}

This is sign function.

func signInput(updater *psbt.Updater, i int, in *TxInput, prevOutFetcher *txscript.MultiPrevOutFetcher, hashType txscript.SigHashType, network *chaincfg.Params) error {
wif, err := btcutil.DecodeWIF(in.PrivateKey)
if err != nil && i != 1 {
    panic(err)
}
privKey := wif.PrivKey

prevPkScript, err := AddrToPkScript(in.Address, network)
if err != nil {
    panic(err)
}
if txscript.IsPayToPubKeyHash(prevPkScript) {
    prevTx := wire.NewMsgTx(2)
    txBytes, err := hex.DecodeString(in.NonWitnessUtxo)
    if err != nil {
        panic(err)
    }
    if err = prevTx.Deserialize(bytes.NewReader(txBytes)); err != nil {
        panic(err)
    }
    if err = updater.AddInNonWitnessUtxo(prevTx, i); err != nil {
        panic(err)
    }
} else {
    witnessUtxo := wire.NewTxOut(in.Amount, prevPkScript)
    if err = updater.AddInWitnessUtxo(witnessUtxo, i); err != nil {
        panic(err)
    }
}

if err = updater.AddInSighashType(hashType, i); err != nil {
    panic(err)
}

if txscript.IsPayToTaproot(prevPkScript) {
    internalPubKey := schnorr.SerializePubKey(privKey.PubKey())
    updater.Upsbt.Inputs[i].TaprootInternalKey = internalPubKey

    sigHashes := txscript.NewTxSigHashes(updater.Upsbt.UnsignedTx, prevOutFetcher)
    if hashType == txscript.SigHashAll {
        hashType = txscript.SigHashDefault
    }
    witness, err := txscript.TaprootWitnessSignature(updater.Upsbt.UnsignedTx, sigHashes,
        i, in.Amount, prevPkScript, hashType, privKey)
    if err != nil {
        panic(err)
    }

    updater.Upsbt.Inputs[i].TaprootKeySpendSig = witness[0]
} else if txscript.IsPayToPubKeyHash(prevPkScript) {
    signature, err := txscript.RawTxInSignature(updater.Upsbt.UnsignedTx, i, prevPkScript, hashType, privKey)
    if err != nil {
        panic(err)
    }

    if _, err := updater.Sign(i, signature, privKey.PubKey().SerializeCompressed(), nil, nil); err != nil {
        panic(err)
    }
} else {
    pubKeyBytes := privKey.PubKey().SerializeCompressed()
    sigHashes := txscript.NewTxSigHashes(updater.Upsbt.UnsignedTx, prevOutFetcher)

    script, err := PayToPubKeyHashScript(btcutil.Hash160(pubKeyBytes))
    if err != nil {
        panic(err)
    }
    signature, err := txscript.RawTxInWitnessSignature(updater.Upsbt.UnsignedTx, sigHashes, i, in.Amount, script, hashType, privKey)
    if err != nil {
        panic(err)
    }

    if txscript.IsPayToScriptHash(prevPkScript) {
        redeemScript, err := PayToWitnessPubKeyHashScript(btcutil.Hash160(pubKeyBytes))
        if err != nil {
            panic(err)
        }
        err = updater.AddInRedeemScript(redeemScript, i)
        if err != nil {
            panic(err)
        }
    }

    if _, err := updater.Sign(i, signature, pubKeyBytes, nil, nil); err != nil {
        panic(err)
    }
}
return nil

}



Source link

Related articles

Bitcoin Hovers Near $64,000 While Coldcard Losses Top $116M

Bitcoin Hovers Near $64,000 While Coldcard Losses Top $116M

August 5, 2026
Hyperscale Trims Bitcoin Holdings, Still Sits On $61M Stack

Hyperscale Trims Bitcoin Holdings, Still Sits On $61M Stack

August 5, 2026
Share76Tweet47

Related Posts

Bitcoin Hovers Near $64,000 While Coldcard Losses Top $116M

Bitcoin Hovers Near $64,000 While Coldcard Losses Top $116M

by Moussa
August 5, 2026
0

Key TakeawaysColdcard theft losses topped $116 million this week, with a fourth wave moving 388.9 BTC in one evening.Developer James...

Hyperscale Trims Bitcoin Holdings, Still Sits On $61M Stack

Hyperscale Trims Bitcoin Holdings, Still Sits On $61M Stack

by Moussa
August 5, 2026
0

After upping its Bitcoin holdings in July, NYSE-listed Hyperscale Data, Inc. on Tuesday announced a sale last week.  The company...

How Switzerland’s SRO Model Built a Crypto Framework Worth Watching – Bitcoin News

How Switzerland’s SRO Model Built a Crypto Framework Worth Watching – Bitcoin News

by Moussa
August 5, 2026
0

Key TakeawaysFINMA lets crypto firms join SROs in 2-4 months, speeding legal market entry.VQF, PolyReg, ARIF and SO-FIT tightened crypto...

How do Bitcoin mining pools typically handle payout frequency versus thresholds?

sha256 – Early private key

by Moussa
August 5, 2026
0

In the beginning, when you didn't use bitcoin-qt, so no wallet.dat or anything, and WIF wasn't a thing back then,...

Hashdex Pulls Plug on $14.7M Bitcoin ETF as Scale Kills Viability

Hashdex Pulls Plug on $14.7M Bitcoin ETF as Scale Kills Viability

by Moussa
August 5, 2026
0

In Bitcoin ETF news today, Hashdex is pulling the plug on its spot BTC ETF (NYSE Arca: DEFI). The fund...

Load More

youssufi.com

sephina.com

[vc_row full_width="stretch_row" parallax="content-moving" vc_row_background="" background_repeat="no-repeat" background_position="center center" footer_scheme="dark" css=".vc_custom_1517813231908{padding-top: 60px !important;padding-bottom: 30px !important;background-color: #191818 !important;background-position: center;background-repeat: no-repeat !important;background-size: cover !important;}" footer_widget_title_color="#fcbf46" footer_button_bg="#fcb11e"][vc_column width="1/4"]

We bring you the latest in Crypto News

[/vc_column][vc_column width="1/4"][vc_wp_categories]
[/vc_column][vc_column width="1/4"][vc_wp_tagcloud taxonomy="post_tag"][/vc_column][vc_column width="1/4"]

Newsletter

[vc_raw_html]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[/vc_raw_html][/vc_column][/vc_row]
No Result
View All Result
  • Contact Us
  • Homepages
  • Business
  • Guide

© 2024 APPROX FOUNDATION - The Crypto Currency News