Questions tagged [raw-transaction]
This tag should be used for questions related to raw transactions, bitcoin transactions that have been serialized for network transmission.
358
questions
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How to submit nonstandard scriptPubKey transaction to bitcoind in regtest mode?
I'm trying to replicate an algebraic puzzle I saw in the scriptPubKey of a testnet transaction:
OP_2DUP
OP_ADD
6e
OP_EQUAL
I think the intent was for this output to be spendable by a scriptSig of ...
- 147
0
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0
answers
28
views
Create signature for raw bitcoin transaction by hand using Swift
I have a
bitcoinWalletAddress in bitcoin testnet (starting with tb1)
publicKey already in hex format
privateKey in P2WPKH format looking like cTS...
By following this guide and this one I created ...
- 1
0
votes
1
answer
33
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sendrawtransaction on a non-synced node
This question is related to this post explaining how to use bitcoin-qt to generate a transaction.
Once obtained, I'd like to dispatch it from my system which is running a non-synced node. When issuing ...
- 87
0
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0
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44
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Cant send raw transaction from golang with OP_EQUALVERIFY failed
I'm using btcsuite (especially this example) package to listen and send unspent inputs for specific address.
Tx hash: 690059e82dcee13678c45f2c583207d357af254624f5037b4d4d12b39caf74ca
From address: ...
- 1
0
votes
1
answer
31
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What is the relationship between r in signature and the public key
I've been reading about ECDSA in here.
Step 11 says that
you only need the ‘x‘ value (20 bytes) for the signature, and that value will be called ‘R‘
Does that say that R is the x-coordinate of the ...
0
votes
1
answer
51
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How long is SIGHASH?
I am reading these two posts 1 2, and following step by step.
I almost understand, but I still have some questions.
Before signing, input script should be removed and replaced by pre locking script. ...
0
votes
1
answer
37
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Q's about P2WPKH
I got some btc in testnet, here are the outputs.
this is the UTXO that i get my btc
{
"value": 17.24756333,
"n": 1,
"scriptPubKey": {
"asm": "...
1
vote
1
answer
33
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How to show the Op codes of scriptPubKey?
I've been learning about bitcoin and creating raw transactions. In the example I saw in a video when they use the command decoderawtransaction it outputs:
...
"scriptPubKey": {
&...
- 13
0
votes
1
answer
24
views
problem sending relative locktime (OP_CSV) transaction
i tried making a relative timelocked transaction with 1 block timelock (spendable after 1 confirmation)
funding tx:
0fda5412da2a2615361914fad007aac73154746108d44c04529e78f6c4424655
address: ...
- 229
0
votes
1
answer
177
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How to calculate R, S, and Z from raw bitcoin transaction with witness?
How can I calculate the R, S, and Z values from a raw bitcoin transaction? I can extract them with rscan.py, but that doesn't work for new transactions.
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0
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49
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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 = {
...
- 127
-9
votes
1
answer
133
views
Can I be rewarded for discovering, creating, and proving bugs on Bitcoin?
There has never been a remittance history to this address.
https://www.blockchain.com/btc/address/1JqPFnGPhHhy54zJKmC1MPiczzgFjCmzE9
public key : ...
0
votes
1
answer
97
views
sign native P2WPKH with bitcoinjs-lib (signing sighash) (non-mandatory-script-verify-flag)
i experimented a lot with p2wsh multisig configurations with bitcoinjs-lib. but when i tried to sign a standard native segwit p2wpkh to p2wpkh transaction everything goes ok except for bitcoin-cli ...
- 229
-1
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2
answers
39
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How value of btc to be send is written in raw transaction?
I am currently learning about bitcoin, and I came up to this:
https://medium.datadriveninvestor.com/bitcoin-raw-transaction-breakdown-c0a5a3aa8688 to know more about raw tx.
What I cannot understand ...
- 21
2
votes
1
answer
88
views
Creating a raw transaction from scratch/
I am currently learning bitcoin technology. So I came up around the term raw transaction. There are many tools to create a raw transaction but I want to do it all by myself.
My Idea is to write a raw ...
- 21
0
votes
1
answer
47
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problem with unlocking P2WSH
i made a P2WSH address with bitcoinjs-lib from a script. the same script results in the same address with bitcoin core. I made an unlocking script and tested the combination with btcdeb and everything ...
- 229
1
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0
answers
63
views
Transfer all funds to another wallet with node.js
I have a segwit address (starts with bc...) and its private key, that holds some BTC value.
Using node.js I would like to transfer all my funds to another address.
This should be pretty straight ...
- 127
0
votes
3
answers
243
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Bitcoin - How to identify if transaction is Segwit
Below is my logic to parse transaction from Bitcoin blk files
Pull Version by getting uint32
Read next 2 bytes. If they are 0,1 then it is SegWit
Else read again for varint to pull input count
If ...
- 27
0
votes
1
answer
56
views
Help decoding transaction on bitcoin testnet
I'm trying to learn more about bitcoin and I'm trying to decode a transaction I made to myself on testnet and I can't seem to figure out a couple of things
Here is the output of getrawtransaction:
...
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0
votes
2
answers
40
views
non-mandatory-script-verify-flag (unknown error) with a script that runs ok in btcdeb
after learning a lot about script (and playing with them on the testnet) i made a way longer script.
$ btc decodescript 7455886f94935688789352885279935b88946e935b88945187
{
"asm": "...
- 229
0
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0
answers
34
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and multiple pieces of witness data to an input
I found an address on the test chain with 1.3 btc. it was a p2sh-p2wsh address and wanted to unlock it. it didnt work with bitcoin-cli because it only accepts a string of hex encoded witness script. i ...
- 229
1
vote
2
answers
68
views
unlock non standard script
i transferred some coins to a testnet address 2MwP5KwNRsQV5cf3T7VcFU4Vhj2LcUeMiLM with a locking script just to play with scripts. the locking script is OP_1 OP_2 OP_ADD (always evaluates to true).
...
- 229
2
votes
1
answer
94
views
Validate raw transaction hex without broadcasting
I would like to check the validity of a raw transaction (i.e. whether it would be accepted by network nodes), without broadcasting the transaction to the network. I am interested in knowing what is ...
- 196
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0
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59
views
What is the best site/tool/way for finding the RSZ values of a bitcoin transaction? [duplicate]
The two most popular sites for doing this are down which are https://2coin.org/ and https://2xoin.com/getRSZfromRawTX/ with no indication they'll ever return to be usable.
Can anyone here link any ...
- 1
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0
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120
views
Decode Raw Bitcoin Hexadecimal Transaction
I have been using this excellent site one amongst many that offer to Decode Raw Bitcoin Hexadecimal Transaction....https://live.blockcypher.com/btc/decodetx/
Well, the site was down for a bit and that ...
- 3
3
votes
1
answer
195
views
DLC funding transaction error: non-mandatory-script-verify-flag (Witness program hash mismatch) (code 64)
I'm attempting to construct a funding transaction for a DLC. So far I have created the following transaction which encodes entry of a bet for local/remote collateral of 1000/1000 sats and binary win/...
- 196
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1
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61
views
Why is signature S value is unnecessarily high not safe?
I get frequent warning when sending RawTX to PushTX message
(Non-canonical signature: S value is unnecessarily high)
Why is signature S with a large value dangerous (that is, when the first HEX ...
1
vote
0
answers
123
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 ...
- 11
0
votes
2
answers
139
views
Error 400 when pushing tx hex to mempool.space's API
I am using the code syntax provided by mempool.space for a POST transaction request from their website here:
https://mempool.space/api
const mempoolJS = require("@mempool/mempool.js")
const ...
0
votes
1
answer
67
views
Get raw transaction from tx id without txindex=1
I'm trying to get the raw transaction hex string of a transaction that I know the id from.
I would like to do that without using txindex=1.
As I assume the transaction is unspent (and confirmed) I'm ...
- 1
0
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1
answer
118
views
How can I get RawTX transactions?
I used to be able to get RawTX transactions on the Blockchain using the link:
https://blockchain.info/tx/60183ab915f2f4b0190605f98bd0e9f8eafe13a1c902b3ae87ecd0dfc8a599a0?format=hex
But the site ...
1
vote
1
answer
231
views
What is "Witness"?
What really is "Witness"? I saw this data in blockchain and can not identify what it really is.
Here is the dump of transaction for example.
TX hash = ...
- 847
1
vote
1
answer
95
views
How can I get the destination address from raw transaction data?
I am writing a program that reads Bitcoin transactions from .blk files and performs some analysis on them. I would like to get the transaction destination addresses (like in some transaction explorers:...
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0
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43
views
I can't broadcast raw transaction with return false
I'm going to transfer funds from the multisig address.
Multisig address is 2/3 format.
The two signature is done successfully but sendrawtransaction function don't be implemented.
Help me about it!
My ...
0
votes
0
answers
31
views
how to get every inputs signature from a raw hex bitcoin transaction using python? [duplicate]
I have this raw transaction :
...
1
vote
1
answer
346
views
Broadcasting a raw transactions on bitcoin network
I have made a raw transaction (based on Bitcoin rules) for my own for sending on Bitcoin network. I would like to submit it on the Bitcoin network. How can I do it ? (preferably command line based).
- 111
1
vote
1
answer
165
views
Creating Witness Signature: non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(MULTI)SIG operation)
So I am trying to do my own witness signatures as described in bip143. I have code that correctly verifies the example signature, so I thought I had a hold of the basic signing and verification. I ...
- 412
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1
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73
views
When generating witness for bip143, how do you choose WHAT outpoint to use?
in bip 143 for creating a witness signature it describes what needs to be serialized/signed. One thing that the doc seems to be missing is how to determine WHICH outpoint to use. So in these ...
- 412
1
vote
1
answer
89
views
convert from public address format to raw transaction format
So I am trying to full understand how to decode transactions. In the dev docs it discusses a raw transaction: https://developer.bitcoin.org/reference/transactions.html
in the paragraph "TxOut: A ...
- 412
1
vote
1
answer
86
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 ...
- 412
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0
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221
views
Need help with (Script failed an OP_EQUALVERIFY operation)
This is a repost of a question which i posted directly on the repository of bitcoinjs-lib, which you can see here
I'm getting the following error when trying to push transactions:
Err: ...
- 1
0
votes
1
answer
71
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 ...
- 227
1
vote
1
answer
328
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 ...
- 227
1
vote
1
answer
87
views
Error validating a transaction with blockcypher
I've created a testnet transaction using blockcypher API (https://api.blockcypher.com/v1/btc/test3/txs/new) and then signed the transaction using the signer (go lang). And then sent signed transaction ...
- 13
0
votes
0
answers
44
views
Automatically forward bitcoins from address A to Address C At 0 confirmations?
I run a bitcoin full node,at that node i have an Address A.
Assuming that Address A receive an Amount from Address B.(i can get UTXO information from blockchain.info API)
How can I automaticlly resend ...
- 1
3
votes
1
answer
95
views
Function combinerawtransaction is not working
I have multiple partially signed transactions that I want to combine into one transaction. All those transactions were signed using the same key so it should be possible to combine all those partial ...
- 143
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votes
1
answer
85
views
How are the unlocking script + locking script executed?
I just wanted to verify the input of transaction 7de75. The related output is index 10 of transaction 00f64.
The locking script defined in 76a91 (index 10) is:
OP_DUP
OP_HASH160
...
- 306
1
vote
2
answers
997
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 ...
- 227
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votes
3
answers
181
views
Is there a way to create a tx completely offline? Maybe with a script or cli commands?
I mean generating the transaction itself offline, assuming I know in advance how much bitcoin a UTXO has. In other words, without querying the network for the UTXO balance.
Then I also need to sign ...
- 119
0
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1
answer
128
views
Why not use address in raw transaction instead of public key bytes
In raw transaction, bitcoin using bytes of the public key, like:
042daa93315eebbe2cb9b5c3505df4c6fb6caca8b756786098567550d4820c09db988fe9997d049d687292f815ccd6e7fb5c1b1a91137999818d17c73d0f80aef9
It ...
- 27