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Questions tagged [signrawtransaction]

A command or procedure call provided by Bitcoin-Core that allows a raw transaction to be signed using keys provided or keys in the wallet.

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conditional spending from P2WSH address

What im doing wrong? Sinse I found out that Bitcoin is programmable money Im trying to use it potential. Using this site https://improvein.github.io/bitcoin-forge/?#/script/create I’ve created a ...
0 votes
1 answer
70 views

How to create and sign a segwit transaction using any npm pacakge

So I am using this NPM package ( https://www.npmjs.com/package/bitcore-lib ) to create and sign a Bitcoin legacy transaction locally and it was working fine for legacy. But when I tried to do the same ...
0 votes
1 answer
938 views

Can we sign a psbt raw tx having multiple inputs created from BTC node with bitcoinjs lib?

Due to secruity reasons, unavailablity of private keys on my end and as per project requirements I need to build back end apis where I will provide a PSBT raw transaction hex (having multiple inputs) ...
0 votes
1 answer
106 views

Transaction created using `bitcoin-cli` failed to decode

I am creating a rawtransaction using bitcoin-cli. After I create my transaction using 'bitcoin-cli createrawtransaction ' this returns and HEX of: ...
0 votes
0 answers
39 views

signing input for spend funds locked by this script

Please explain how to sign input for raw transaction with privet key corresponding to 1st or 2nd public key in this script "asm": "OP_IF 1694275749 OP_CHECKLOCKTIMEVERIFY OP_DROP ...
2 votes
1 answer
2k views

python-bitcoin-utils - sendrawtransaction RPC error: {"code":-25,"message":"bad-txns-inputs-missingorspent"} when trying to broadcast my tx?

I am trying to create a bitcoin transaction to send all of the funds from tb1qj6zz96g8xgrwpgmdlvmkrjlwzz54sf47086yc9 to tb1qxgm8j0cq7tnftef3t563psl56gtmzxanm5c9uy. ...
2 votes
2 answers
585 views

How to recover and sweep P2PK coins

In an effort to recover some old dust, I've been working on a sweep script to be used on a bunch of old private keys with a little BTC locked inside multiple p2pk utxos. First I tried using python's ...
-1 votes
1 answer
59 views

How to Sign Bitcoin Transaction from two or more children wallet in HD wallet

How can I handle a situation where I have bitcoin on two or more different wallets with a single phrase, how can I sign the two transactions to a friend. Example: I have 2BTC in a wallet address that ...
1 vote
1 answer
149 views

signrawtransactionwithwallet for a multisig-transaction, after getnewaddress

I created a descriptor wallet in bitcoin core 24. Next, I created a new address with using getnewaddress. I took pubkey of that address, and used it as one of the three pubkeys when generating a ...
2 votes
1 answer
122 views

Can a signed raw transaction's locktime be changed?

If I create a signed raw transaction with a locktime in the future, and give this raw transaction to somebody else, can they edit the locktime so that they recieve the bitcoin immediately? For example,...
1 vote
1 answer
195 views

Sign raw transaction with key

I'm upgrading my application from bitcoin core 21.0 to 23.0. In core 21.0 I created a raw transaction and sign it with my private key after I called dumpprivkey RPC. At core 23.0 I received this error ...
4 votes
2 answers
2k views

How to send bitcoin from an offline Bitcoin Core that doesn't have a synced balance?

I am setting up a cold wallet. How can I generate a signed raw transaction from bitcoin core wallet that controls some bitcoins? PS: I generated the wallet using getnewaddress in console from the ...
1 vote
0 answers
194 views

Send transaction with 2 inputs and 2 outputs using Blockcypher

I'm using a node.js client of Blockcypher in order to broadcast a Bitcoin transaction. My code: const originWalletBalance = getBalance(originAddress) const fee = calculateFee() const txBody = { ...
1 vote
0 answers
60 views

Is signrawtransactionwithkey secure?

is the node API signrawtransactionwithkey (as documented here https://developer.bitcoin.org/reference/rpc/index.html) secure or recommended? This API takes a private key, so i want to understand how ...
1 vote
0 answers
315 views

How do you sign an unsigned transaction using Electrum in a multisig setup?

I am experimenting with multisig in testNet between Electrum and Caravan by Unchained Capital. I created a 2-of-2 multisig in Electrum with BIP 39 seeds. I then created a watch-only wallet in Caravan ...
1 vote
1 answer
101 views

How to get Y from X

Ok, so I get address generation now, and I understand that X is hashed, however for verification of a signature, we need the public point, (x,y) How would one get Y from X? Lets take an example, im ...
1 vote
1 answer
155 views

signed raw transaction does not conform?

I have become fairly familiar with constructing raw transaction. One thing I can't understand is after a raw transaction comes back from a signing, it doesn't look like it conforms to the transaction ...
2 votes
0 answers
144 views

Creating a complex raw transaction

I'm using createrawtransaction to get a complex transaction of 2 inputs and two outputs as discussed here: https://developer.bitcoin.org/examples/transactions.html bitcoin-cli -regtest ...
0 votes
1 answer
312 views

Bitcoin core trying to sign a transaction loaded from psbt file, but getting "could not sign any more inputs" error

I am trying to sign a transaction loaded from psbt file, but I'm getting could not sign any more inputs error. I did it successfully on the first try. However I cannot do it any more now. I changed my ...
2 votes
1 answer
1k views

What is the difference between signrawtransactionwithwallet vs signrawtransactionwithkey in signing unsigned raw transaction?

I have a bitcoin address generated in bitcoin-core (offline computer) I imported that one address into electrum as a watch-only wallet (online computer) From electrum I created an unsigned transaction ...
1 vote
2 answers
3k views

How to create a signed transaction offline using electrum?

I remember that on Electrum, it used to have a Preview button inside the Send tab. By clicking the Preview button I could export the unsigned transaction, and then sign it. I cannot find this button ...
0 votes
0 answers
98 views

RPC to sign PSBT with private key

What is the PSBT related RPC which works similar to signrawtransactionwithkey ?
4 votes
0 answers
899 views

To sign raw transaction with Segwit Address in the TestNet

I am using Bitcoin core 0.14.1 testnet. I created a Segwit address. transfer some coins to this address. Now I want to spend it. I created a raw transaction using console command i.e. ...
2 votes
1 answer
348 views

rust-bitcoin Non-canonical DER signature

I am trying to create a raw transaction spending a P2PKH output using rust-bitcoin, but whenever I am pushing the transaction to the testnet I receive the following error mandatory-script-verify-flag-...
1 vote
2 answers
224 views

Partially Signing multisig rawtransaction returns redeemScript/witnessScript does not match scriptPubKey

I want to partially sign a rawtransactions using bitcoind through RPC but I am really stuck almost at the end of the process when I try to sign my manually created raw transaction and I spent many ...
1 vote
0 answers
122 views

How to use Digital Signature to Sign Unsigned Transaction?

so I was trying to sign my unsigned transaction: ...
1 vote
1 answer
716 views

What do I need to sign to produce a scriptSig signature that consumes a multisig UTXO?

I am trying to figure out how to produce a valid signed transaction to consume BTC from a multisig address. 1) First let's look into producing a signature for an UTXO associated to a regular address: ...
0 votes
1 answer
687 views

Signing transaction offline - manual way vs. Electrum

Being inspired by the thread (Redeeming a raw transaction step by step example required) I wanted to understand transaction signatures on the byte level. So I created my own Linux scripts that: ...
1 vote
1 answer
90 views

Can a regtest bitcoind node use SignRawTransactionWithKey + prevtxs for a mainnet raw transaction?

I want to know if a regtest nnode can sign a raw mainnet transaction with the signrawtransactionwithkey rpc provided that I pass the correct keys and prevtxs as the regtest node will not be aware of ...
3 votes
1 answer
502 views

Can't send raw transaction Bitcoin Core 0.19.1 - non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(MULTI)SIG operation)

I wanted to send a raw testnet transaction and I was doing it like in the bitcoin documentation, but I still get this error: non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(...
0 votes
1 answer
137 views

bitcoind multisig transaction not shown as multisig transaction / shown as "signed" by 2:3

Seems like there was a change in how multisig transactions are being created. Running a node using bitcoind v0.16.3 and another one using latest bitcoind (v.0.19.0.1). The multisig transaction created ...
2 votes
1 answer
183 views

How to combine separately signed inputs from different users?

With two separate signed raw transactions from two users, how would one go about 'batching' these manually (combining the inputs and outputs into a single transaction)? Is this a viable solution for ...
5 votes
1 answer
2k views

Signing a raw transaction with multiple inputs

So I am creating a simple P2PKH transaction and after I researched about this found few useful posts and answers here; I was able to successfully spend a a single P2PKH UTXO but it is really getting ...
1 vote
2 answers
579 views

Could not sign Transaction with SignRawTransactionWithKey through the RPC (RegTest)

I am able to sign following transaction with Complete=true result, but when trying to decode signed transaction, it returns error "TX decode failed" both from DecodeRawTransaction and ...
1 vote
1 answer
103 views

Open source, how can I view "Transaction Create a new transaction" and "Sign Transaction"?

Not long ago I saw on the site github.com the very first Nakamoto code: https://github.com/livegnik/BitCoin-v0.01-ALPHA Running bitcoin.exe, I did not find the console. If the program is open source,...
0 votes
0 answers
167 views

Sign a Partially Signed rawtransaction with bitcoinjs-lib

I was trying to figure out how to use the bitcoinjs-lib. I was thinking if I could sign a partially signed raw transaction in bitcoijs-lib. For example - If I have a hex String whose input1 is ...
1 vote
1 answer
150 views

Create a transaction from a wallet coins (UTXOs) with the bcoin library

I have a multisig setup where the signing is done through external HSM's. I am using Bcoin and its wallet to receive funds. What I am trying to do is to create a transaction and sign it with the HSMs. ...
1 vote
1 answer
540 views

Two transactions are signed by different private keys, and the value of "R" for these two transactions is the same?

Everyone knows an error in the Blockchain when the same value of "R" can be calculated and find out the private key of the transaction: ECDSA Signature and the "z" value But I have a ...
2 votes
1 answer
2k views

How do I sign and send a raw transaction using BitcoinJ?

Transaction transaction = new Transaction(params); // 遍历未花费列表,组装合适的item double sum = 0; String address = null; List<Unspent> unspents = new ArrayList<>(); Map<...
3 votes
0 answers
1k views

How to sign bitcoin raw transactions with Python offline

I have a raw bitcoin transaction created using createrawtransaction unsigned_tx = "...
3 votes
1 answer
2k views

Signrawtransaction is not working on bitcoin core V0.17.1

I am having trouble signing a transaction on bitcoin core since it appears signrawtransaction no longer works. I get the following error message : signrawtransaction is deprecated and will be fully ...
2 votes
1 answer
337 views

signrawtransaction is not a function on bitcoin core V0.17.1

I'm using npm bitcoin-core ^2.0.0 to get access to my bitcoind (v0.17.1 MAC) My code: let signedRawTx = await btcClient.signRawTransaction(rawTx, [], [privateKey], 'ALL'); I get an error message ...
0 votes
1 answer
895 views

Creating a raw bitcoin transaction and signing it with the private key using php and javascript

I have a full bitcoin core node setup and would like to use it to just "broadcast" my signed transactions. But what is required to make a raw transaction using PHP and Javascript? The variables I have ...
6 votes
1 answer
2k views

What exactly is hashed and signed in a segwit transaction

I have an unsigned raw segwit transaction on my regtest network: ...
0 votes
1 answer
329 views

Sign Bitcoin transaction with several inputs using bitcoinj. Broadcasting of transaction failed

Good day! I'm working with low level API to make tx and sign it offline. But after all preparations I try to broadcast it and than i get an error from network: 16: mandatory-script-verify-flag-...
1 vote
2 answers
134 views

Why are my Signature Scripts Different from my professors?

bob_addr = "1NWzVg38ggPoVGAG2VWt6ktdWMaV6S1pJk"#"1FMb8Jnn1jSh7yjDFfonC8xCCH3ittoEzB" bob_hashed_pubkey = base58check.b58decode(bob_addr)[1:] bob2_hashed_pubkey = b'\xec\x06\xb2\xbf\x18\xc8\x97\x06\...
1 vote
1 answer
469 views

When and where to add extra information when signing P2SH raw transaction?

This post is quite long so in summary: I'm wondering where I can add extra information when signing a raw transaction (in this case a cleartext of a digest). I'm also wondering if Missing inputs (code ...
2 votes
0 answers
322 views

Multisig signrawtransaction fails

I have 3 private keys (a,b,c) which belong to an address (2 of 3) from which I want to spend funds using RPC commands. I´ve started with generating the redeemScript using createmultisig() and the pub ...
0 votes
1 answer
200 views

Error in creating bitcoin raw transaction

I am creating a raw transaction to send amount from from_address to to_address. While sending a transaction I got an error. I posted the detailed process of creating a raw transaction. Could anyone ...
1 vote
1 answer
248 views

BitcoinLib SignRawTransaction JSON-RPC returns false when using private key

This is a repost of (JSON-RPC signrawtransaction returns false when using private keys) but I could not comment because of my reputation (new user). I've been using BitcoinLib via Litecoin Testnet ...