Questions tagged [transactions]

This tag should be used for questions related to transactions. Transactions are signed messages regarding the transfer or generation of bitcoins. They are broadcast throughout the Bitcoin network and, if accepted, integrated in the blockchain.

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Cryptocurrency Transaction under conditions

Cryptocurrency is not allowed in all countries, let's say that an authority allowed to a built new cryptocurrency type but under some conditions. The country has specified a blacklist( Criminals), ...
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Transaction amount for bitcoin payment gateway

I'm trying to add bitcoin payment for my ecommerce website. I have installed bitcoind on the server and i've set the notify wallet parameter in bitcoin.conf. the issue i have now is how to know that ...
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I am new to Bitcoin. Am I being scammed?

I am new to Bitcoin. I got into transaction with this woman I saw on Facebook, Olivia Jessica, a lot were mentioning her in a group so I decided to ask her how to do this thing. She asked me to join ...
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Is my ECDSA signature always unique?

In P2PKH the validation script is: <sig> <pubKey> OP_DUP OP_HASH160 <pubKeyHash> OP_EQUALVERIFY OP_CHECKSIG If I always use exactly the same private key and always sign exactly the ...
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Amount for transaction on Blockchain not the same as what I sent [duplicate]

Thank you in advance for taking the time to answer my question! I am new to Bitcoin, and although not a computer programmer I have recently done a deep dive into learning how it works, and am ...
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Pending transaction with bitcoin-core [duplicate]

I performed a bitcoin-core transaction to a Coinbase wallet. I see the transaction pending for two days. What do you advise me to do?
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Sent two btc transacton to payeer wallet less than the mnmum deposit,neither where credited

recently sent to my payeer wallet a 0.0002 btc transaction which is less than the 0.0005 minium btc deposit, then did a second transacton of 0.0003 btc thnking that it will sums up. Both transaction ...
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1answer
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How can be proven that a signature is valid with it's public key

If someone wants to make a transaction, they need to sign the transaction data with their private key. For example Sign(transactionData, privateKey) creates the signature. What is exactly this Sign ...
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Why does the txn_count field exists in a block?

I was wondering why the txn_count field in a block exists. The count of transactions could be determined by parsing the txns field in tx format, right? Same for 'tx_in count' and 'tx_out count' in a ...
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1answer
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How is the balance of a Bitcoin address quickly calculated?

For what I understand, the balance of a Bitcoin address is the total sum of UTXOs of that address in the entire blockchain. The current size of the blockchain is around 350GB. How is the total sum of ...
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What happens when a request expires in Electrum, then I am paid?

I just bought bitcoin from the bitcoin website, and it is taking a lot longer than I expected to process my information and my request and actually send BTC to my wallet. I set the "expire" ...
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Create Raw Transaction in BitcoinJ offline starting from UTXO info

I would to create offline Raw Transaction (without signing it) in BitcoinJ. The information I know about the inout is UTXO's hash, index, amount, address, and script. I also know the receiver address ...
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Signing Transaction Failed

Tried to make a transfer from Bitcoin QT from version 0.9.3 and an error appears "Signing Transaction Failed" but wallet was not fully synced with network yet, im still waiting. Core wallet ...
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The best JavaScript libraries supporting Bitcoin Core?

I have downloaded and installed Bitcoin full node on my Linux server and I'd like to start working with the bitcoin core to create wallet, addresses, and transactions. What is the best JS libraries ...
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1answer
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Bitcoin scriptSig with two transactions to unlock the scriptPubKey

For example, the bitcoin script of a scriptPubKey that consists of OP SUB < 100 > OP EQUAL, and is used to lock an output of a transaction. OP SUB pops the top two elements in the stacks, ...
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Sending multiple output transaction with total output exceed the total input value

I am still confused about whether it is still a valid transaction for multiple output transactions if the total output of the transaction exceeds the amount of total input. For example, there are two ...
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Transactions with Bitcoin Mockup/Method

As I haven't got many resources I am unable to test this method however before I spend the time investing in servers and such, I would like to show my idea as to how I will be handling a payments ...
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1answer
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How to retrieve Bitcoin transfer unconfirmed for 10 days [duplicate]

I’m very new to Bitcoin. I had Bitcoin sent to wallet on Bitcoin.com and then sent to wallet in cash app that I am familiar with. After 12 days it still says unconfirmed and pending. Is there a way to ...
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1answer
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When does Bitcoin update the UTXO set?

I am kind of confused with something. I hope you can clarify it for me... Let's say I want to make a transaction. So my exchange wallet does that for me. The way it does this is it first grabs the ...
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1answer
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how does merkle root building work for empty array?

It's known that even if no transactions get created, bitcoin still creates a block with empty array of transactions. In this way, I am curious what the merkle root would be. How does bitcoin figure ...
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how does bitcoinjs-lib grab utxo

So, Let's say I want to create a transaction by using bitcoinjs-lib. As far as I can see, this library doesn't provide the help so that it can automatically figure out/grab unpent transactions for ...
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1answer
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Is it possible to forward signed transaction using bitcoind prune mode?

Summary: Is it possible to perform createrawtranscation , signrawtransaction and sendrawtransaction rpc call using bitcoin in prune mode? Detail : I want to implement an API that performs p2p BTC ...
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Practical tips for validating raw transactions

I have a protocol that creates a raw signed transaction that is then broadcast to the network. The transaction aims to send X BTC to a single address Z. The transaction is created with the help of ...
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how to get txid with sha256

I am trying to get a txId from a transaction without any bitcoin libraries. I can use low level libries though such as crypto, sha256 and so on. I have a class which contains version, vins, vouts, ...
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Unconfirmed transaction almost 5days waiting :( [duplicate]

Anyone could help me this is my first time { "Version": "1", "LockTime": "0", "Vin": [ { "TxId": "...
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transaction has received 0 confirmations past 24 hour [duplicate]

I have the following transactions that stays unconfirmed for the past 24 hour: https://www.blockchain.com/btc/tx/4f52b345789e3fbdefd07842c7df993a3609047ee1fa51c1b3c53b863fc7dbfa is there anything that ...
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1answer
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I inverted 2 digits to a wallet in a transfer

Is there anyway to contact the wallet owner to retrieve the coins? If the wallet doesn't exist, can the transaction be reversed? Is there anything that can be done?
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Bitcoin sent , no confirmation on receiver’s or sender’s end [duplicate]

Transaction ID: f6132f9d9e1b80d0c852a40a172d870a3f3d4a5a8f6706300a91bc704731cf96 I do not know what is going on. I have sent the bitcoin to the receiver’s address on the same wallet and the receiver ...
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1answer
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Transaction taking a long time to confirm, now it doesn't even show up on Bitcoin Explorer [duplicate]

UPDATE: Electrum now says the transaction is "Local" and now I have an option to "broadcast", should I do that? OP: So, I'm trying to spend a small amount of bitcoin on a website (...
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Will the Bitcoin network discredit a transaction if you do a simple transfer on a multi-sig after you found the collision on that address?

Let's say you found a collision for an address on the Bitcoin network. You have its private key. Will you be able to transfer any money around or will the network prevent it or does it get verified? ...
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1answer
27 views

find a transaction [closed]

I made a bitcoin transaction and while I was typing in my email the window closed, so I didn't get my receipt. I have the phone number I used, one time password, wallet address, and the machine ...
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Error: Non-canonical DER signature when attempting to broadcast signed Segwit Transactions

I'm trying to build a native Segwit transaction programmatically, however, whenever I attempt to broadcast the transaction, it returns this error: non-mandatory-script-verify-flag (Non-canonical DER ...
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1answer
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What is the “value” in a Segwit sig hash?

The BIP143 docs state that the value is: "value of the output spent by this input (8-byte little endian)" If I have a single UTXO of value 10,000 sats and I'm using this as an input for a ...
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Transaction sent to me stuck in processing status [duplicate]

Money sent to my Bitcoin address has been confirmed, but is still in the processing status. For 2 weeks now. Does this happen often? Is there any action i can take?
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Bitcoin Core ZMQ “hashTx”

Bitcoin Core ZMQ messaging system has hashtx along with 4 other topics. But nowhere it is documented whether the transactions that comes from hashtx are confirmed transactions which are added in a ...
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How to automatically get transaction while sending BTC?

Here is my SendBTC method. I do not want to pass fundingTransaction variable each time I call this method. Currently, I pass fundingTransaction value by looking up to https://testnet.smartbit.com.au/. ...
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1answer
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NBitcoin Transaction sign(secret, bool) is giving error. Instead of bool it says to pass Coin Object

I am using NBitcoin (I'm new to it) to sign a transaction. Here Transaction sign(secret, bool) method is giving error. (I've searched the Internet, but got no help.) Instead of bool it says to pass ...
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Why transaction shows in received but does not show in balances [duplicate]

I had a transaction sent while the Bitcoin Core was syncing. Now the transaction shows up in the received transactions but there is no balance. Is it possible to recover the coin so I can move it to ...
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2answers
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How many addresses can be in input and output of a transaction

I have read through this question and i understand that there can be many sender and receiver addresses within 1 transaction(i'm new to bitcoin transaction, previous i was working with ethereum where ...
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2answers
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what does segwit remove?

It's said that Segwit removes signature data from transactions which makes block have more space for more transactions. Question 1) If SegWit removes signature data, where does it put it exactly ? ...
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how does node remove conflicting transactions from memory pool?

Sorry for the long text. This is just my observation and was wondering if you could let me know if I am correct or not. Case 1) Let's say minerA and minerB both have the same transaction in their ...
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1answer
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how does node create UTXO from blockchain for the first time?

Let's say I am a new node. I try to synch with the full node to grab the whole blockchain. Now, I synced with it .It's time for my node to create UTXO database .. How does it do this exactly so that ...
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1answer
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Blocks seem to store only txIDs, where does the transaction data come from for IBD?

I know that blocks store transactions. After looking into a block, I can see that it only stores txIDs. Question 1 - Where are actual transaction objects stored? If you tell me that it's stored in a ...
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Why do I see a Bitcoin address prefix starting with 4?

I have an old Bitcoin (Counterparty) wallet that I am importing past transactions. I found a Tx that has a missing output address on one API, but it shows on another. I cannot find any documentation ...
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1answer
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double spend the mempool to outbid an attacker

if I spend some input in a tx and a few seconds later spends the same input with other inputs in another tx with higher fees. If the first tx is still in the mempool would the 2nd tx replace the first ...
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1answer
57 views

Transaction Output Order

Suppose I generate a transaction with 5 outputs. Is there a deterministic way to know how the outputs will be ordered on chain (their .n values) or will they simply appear in the order in which I ...
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48 views

I Found old wallet but there is new mined transactions but unconfirmed [closed]

the wallet is old but transactions are new 2020 transactions type : mined unconfirmed
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how does bitcoin's 6 confirmation really help?

I've read the following: transaction is “confirmed” once it is buried 6 blocks into the blockchain. This is taken to be a sufficient proof of work such that reversing 6 blocks to double spend coins ...
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1answer
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How/where is the informatioin regarding the mapping of a transaction to a particular block stored?

According to the bitcoin white paper a block contains Previous Hash, Nonce and Root Hash. The root hash is a merkle tree root node of all the transactions that have been confirmed to that particular ...
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Why does printing a scriptPubKey have an extra OP_PUSHBYTES_20? [duplicate]

I am building a P2PKH script pubkey in code, and the standard format is: OP_DUP OP_HASH160 <PUBKEYHASH> OP_EQUALVERIFY OP_CHECKSIG However, when I print it (I'm using the bitcoin Rust crate) it ...

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