Questions tagged [transactions]
Transactions are signed messages carrying out the transfer or generation of bitcoins. They are broadcast throughout the Bitcoin network and, if accepted, integrated in the blockchain.
3,461
questions
1
vote
2
answers
25
views
Sparrow with Keystone Pro and Bitcoin Core
I originally set up Sparrow with a Keystone 3 Pro, and have been using public endpoints. Recently, I set up a Bitcoin Core node in my house. I can successfully connect Sparrow to the node, but all ...
1
vote
1
answer
88
views
How Does the Blockchain Recognize Locked UTXOs in a PSBT if the PSBT Isn't Stored On-Chain?
I'm currently exploring the use of Partially Signed Bitcoin Transactions (PSBTs) and have a question about the locking mechanism of UTXOs during the signing process. I understand that as a first ...
0
votes
1
answer
30
views
Can a Second Signer Add Data to a Bitcoin PSBT Transaction?
I'm working with Partially Signed Bitcoin Transactions (PSBTs) and have a question about the capabilities of secondary signers in the signing process. I understand that in a multi-signature scenario, ...
0
votes
1
answer
20
views
Handling UTXOs in Partially Signed Bitcoin Transactions (PSBTs) and Potential Double-Spend Scenario
I'm working with Partially Signed Bitcoin Transactions (PSBTs) and have a question about the behavior of transactions when the same UTXOs are involved in multiple transactions. Suppose I have a ...
0
votes
1
answer
33
views
Can You Create a Time-Locked PSBT in Bitcoin?
I am exploring the capabilities of Partially Signed Bitcoin Transactions (PSBTs) and am particularly interested in incorporating time locks. Is it possible to create a PSBT that includes a time lock ...
0
votes
1
answer
42
views
Handling Multi-Signature Transactions with PSBT in Bitcoin
I'm currently working with Partially Signed Bitcoin Transactions (PSBTs) and trying to understand the best practices for handling transactions that require signatures from multiple parties. ...
1
vote
2
answers
72
views
SIGHASH_ANYONECANPAY mediated tx modification
If Alice broadcasts a tx with an input tx_in1 and output tx_out1 signed with SIGHASH_ALL | SIGHASH_ANYONECANPAY, it lives temporarily in the mempool. Bob chooses to be a part of the crowdfunding and ...
0
votes
2
answers
62
views
Can I spend a P2PKH transaction via the script-path of P2TR?
Is it possible to use a P2TR script-path to spend a legacy P2PKH UTXO? I have heard it is possible to "wrap" a P2PKH transaction with P2SH. Maybe it would be possible to "wrap" the ...
0
votes
0
answers
22
views
Sent bitcoin to my new bitcoin core wallet, but not showing up [duplicate]
I am SUPER newbie to this stuff, please help and be patient. I needed a place to send a large bitcoin transaction, and decided to impulsively download bitcoin core to receive it on my desktop. There ...
1
vote
2
answers
76
views
Presign transaction with unconfirmed outputs
I am wondering whether the following scenario is possible. Any help is very appreciated.
Alice and Bob are creating a (taproot) 2-of-2 multisig together. They do not trust each other. They intend to ...
1
vote
1
answer
74
views
Is it possible to combine two PSBTs while retaining the existing signatures?
What if I want to combine two PSBTs: one is signed by Alice’s private key, another one is unsigned. I want to take the input and output from the signed one, and combine them with the unsigned PSBT, ...
0
votes
1
answer
32
views
Where is my btc? [duplicate]
Hi My friend bought BTC in 2017 on an exchange. He just recently went back into it and saw he had some btc in there. After taking a look we saw he bought some then sent some, problem is he doesnt ...
0
votes
1
answer
75
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
45
views
Make signed transaction invalid after specified time
Is it possible to construct a valid signed transaction that will become invalid if it hasn't been included in a block before a specified height? Is there any opcode or other way to accomplish this?
...
0
votes
1
answer
37
views
Must input UTXO references be unique in a transaction, and/or unique in a block?
Must input UTXO references (txid + vout) be unique in a transaction, and/or be unique in a block?
Put another way, is it a rule that UTXOs can be consumed piecemeal in transactions and blocks, so long ...