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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Bitcoin transactions/Full nodes/SPV nodes

This is a bit long - please bare with me, i want to understand exactly what a full node and SPV does in verifying transactions and some other things: Transaction start, A wants to send B, 1 BTC of ...
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Can the value in a prev_out be less than the amount of bitcoin to send?

Let's say I have a wallet that in total received 1 bitcoin over 10 transactions of 0.1 bitcoin each. If I want to send 0.5 bitcoin to another address, will it work having only one input with one ...
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I sent bitcoin to an Electrum address I created but I can't access it. can anyone help

I went on a market set it all up everything was good to go but when I set up a refund address just in case something went wrong , in the process of sending the funds to the vendor I accidentally sent ...
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How blockchain consensus verify the transaction?

So many blockchain documentation tell that the blockchain uses the consensus to verify transactions. But what I understand the consensus only generate the hash to create the new block. I don't know ...
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Can sent bitcoin be reverted? [duplicate]

Can succesfully sent bitcoin be reverted? The reason was that a fee was needed. The fee will be sent back after transfer is fulfilled?!?
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How are fees specified in a TX?

I know that the way miners claim their fees are by factoring them in the BTC amount specified in the Coinbase, which the protocol forces the max selectable value to be the current block reward + the ...
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different 'vout' formats

Using bitcoind rpc, I have been looking at the content of 'vout' records for a few (coinbase) transactions and don't understand the difference between them. Looking at block 710000, the coinbase ...
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Where is the revelead public key in a spending transaction?

I am pursuing a deeper understanding of Bitcoin. Reading Grokking Bitcoin now. I am trying to asess the understanding of different concepts by exploring a BTC RPC explorer. I got some understanding ...
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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 ...
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Why can't I modify someone else's transactions, if I have their signature data?

As I know, signature system is adding signature to end of transaction. And doesn’t hash transaction, so others can know my signature. If I can send a message directly to the node, can I use other’s ...
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Why is my raw transaction not valid?

For educational purposes and better understanding of bitcoin script, I try to broadcast this transaction: 01000000 -> version 01 -> 1 input ...
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receiver's address from sender's address and txid

I want to trace a transaction. I have both the sender's btc address and the txid. How can I find out the recipient address of the transaction?
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why we need override a pending transaction?

why we need override a pending transaction?
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How transactions script work?

I am trying to learn Bitcoin in some technical details, but I don't really understand the process of locking and unlocking scripts. I know that for what they are using, but can someone explain me some ...
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How to "From" and "To" Addresses from bitcoin transaction using the command line?

Dears, I am scanning the bitcoin blocks and looking for transactions that involve my list of addresses. This is more like a wallet hosting service. I need the "From" and "To" ...
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Can I recover BCH sent to BTC? [duplicate]

I accidentally sent BCH to a BTC address. I have 4 out of 6 confirmations and it’s going on an hour. Are my funds lost? Can I cancel?
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question about orphan transaction pool

Suppose I am a full node and a transaction C arrives at me. I didn't find its father, so I put it in the orphan transaction pool. After a while, C's father B arrived at me. But I also didn't find B's ...
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Can the government find out my name, address, details etc if I invest in crypto?

The data of the transactions are all stored in a blockchain right. So, will anyone trying to trace me find out my name, address etc if I buy cryptocurrencies? Sorry I am a complete noobie to this ...
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Blockchain node and Bitcoin platform [duplicate]

If i use Bitcoin platform like binance and if i make a transaction (e.g. selling bitcoin), do i make such transaction as a single node (in blockchain's term)? or everything is done on binance server?
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how does new exchanges order books work?

When a new exchange is launched and it doesn't have many users, how does it managed an order book? how can they match orders when there's not enough of them?
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Bitcoin Whitepaper - Details of digital signature used in transactions

I have read the whitepaper a few times now, I just want to know precisely what Satoshi meant by 'digitally signing a hash of the previous transaction and the public key of the next owner and adding ...
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How many transactions are coin tumblers responsible for?

I see many resources online which explain what coin mixer or tumbler services are and how they work, and why someone would or wouldn't want to use one. But what I'm having trouble finding anywhere, is ...
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Is it possible to make a transaction from multilple addresses to one address?

I am building a platform (in node js) that users are going to pay for items using bitcoin. Some of the items has low prices (perhaps, even lower than the BTC fee). The problem is: if I make an ...
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Why is OP_XOR disabled? Are there any forks on which it has been enabled? [duplicate]

Why is OP_XOR disabled? Are there any forks on which it has been enabled? Are there any plans to enable it? Perhaps this is the answer, still perhaps there is another reason for the bitwise logic ...
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Getting "Public key is neither compressed or uncompressed" error when pushing a transaction, but everything looks fine to me

I am very new to Bitcoin development and trying to make some personal milestones, one of which is broadcasting a transaction to the testnet. However, I am having a hard time due to the following error....
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Can the order of transactions not strictly follow the chronological order?

Suppose I have 1 bitcoin, I give Alice 0.2 bitcoin first, then Bob 0.2 bitcoin immediately, both transactions are legal can miners reverse the chronological order when packing block ? If (1) is true, ...
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Is there any other form of coinbase transaction?

Could miners intentionally change the output address or reduce the output value before forming a block
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Where can I find the specific instructions contained in scriptSig? What exactly does the script? Which dates does ist use?

My problem is to understand perfectly the steps the bitcoin program goes by satisfying the conditions which are demandet by the scriptPubKey in the previous transaction
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What are the detailed rules for Merkle tree generation? Specifically the order of the leaf nodes

As far as I know, the first one is the coinbase transaction
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These two websites are currently scamming people in investing bitcoins. Is there anyway to report it somewhere?

The following two websites are scamming people by asking them to invest in Medical blockchain: https://bithorse.net/ https://pharmablockchain.org/ The scam looks very similar to the one reported on ...
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Trying to get all transactions between two specific dates

I am trying to make a python script for a research project that needs to get all the transactions that happened between point A and B in time, but I can't find any API, website or library where I can ...
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Does an actual transaction happen on the blockchain when you buy btc/usdt?

I was wondering if I buy or sell something on the exchange if coins are actually transfered somewhere of if the exchange just changes values of what belongs to me.
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Is txid a required field on all transactions?

I am writing a script that relies on txid to perform some tasks. I was wondering if it is possible for the txid to be missing from a transaction.
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bad-txns-inputs-missingorspent

I want to sign btc transaction but when I want to broadcast trx to network even mainnet nor testnet, with both networks I got the same error.: bad-txns-inputs-missingorspent "error": { "...
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Unable to "sendcoins" using bitgo express apis - Windows OS

I am building an ASP.Net project (C# - .Net 4.8 - windows os - visual studio 2015). I want to send bitcoin from one address in my wallet to another for test. Trying to access api url : https://test....
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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 ...
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How to find the FIFO chain beginning, the platform to a transaction by Transaction ID?

I have a transaction ID here, recipient address and sender address which I thought to be a transaction from some Bitcoin purchase platform such as LocalBitcons.com but I cannot find my purchase ...
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How do exchanges manage deposits and withdrawals?

Suppose users on an exchange deposit bitcoin to different addresses using the HD wallet structure. Now suppose a user wants to withdraw bitcoin to an external address. How would this whole process be ...
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Parse the output field of getrawtransaction to generate a common address hash

Consider the following coinbase transaction: https://www.blockchain.com/btc/tx/d70ae1131d433b655d0faeae1db4efa15bb4138f1e38e60a53073a58ea1dcc34 How we can retrieve the recipient address, i.e. ...
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Can we consider all these satoshi-era wallet being re-activated a good or bad thing for Bitcoin? [closed]

More and more I am seeing news about addresses that was dormant for around 10 years being (re)activated. Is it positive or negative for bitcoin in the long run ? Also, how many of those dormant ...
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Weird Bitcoin RPC listreceivedbyaddress behaviour

Everything was done on regtest network. So I've generated a new address using getrawchangeaddress on wallet 2 and made a 0.1 BTC transaction from wallet 1 to wallet 2 and tried check this address ...
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How to create and share a QR code for an Electrum wallet Bitcoin address? [duplicate]

To confirm, this address: is converted to a QR code with: qrencode -o wallet.png '1F63UTxXHi7Cff4aDFdMGzgLt1CKuHpRot' so that the wallet.png can be shared as address where Bitcoin can be sent to?
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WBTC to bitcoin transaction how-to? From MetaMask to Electrum

I'm not using MetaMask nor WBTC myself but am looking to receive Bitcoin from that source and want to understand how this is accomplished. From what I gather, the WBTC must be unwrapped (or converted) ...
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3 votes
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Bitcoin transaction script debugging strategy - how to debug 'invalid script' errors

I've been playing around with DLC transactions but I can't seem to create a valid CET transaction to conclude simple all or nothing bets. Further details below on my specific case, though this ...
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It takes longer to transact your money Bitcoin! Why?

When it says transactions takes up to 10 minutes, Why do it take more then two minutes when you transfer money into another account
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How to fetch the last month's block and transactions from mempool?

I want to fetch last month's block and transactions from mempool using typescript. And then persist this to MongoDb. In mempool API-REST there is a code of "GET_Block". import mempoolJS from ...
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How to forge a signature with fixed Z value

I want to forge a signature with a fixed z value, what is the formula to do that
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Who do locked bitcoins belong to?

I am currently learning about bitcoin transactions and I found out about the scriptPubKey which locks every output until it is spent by using the unlocking script. My question is who owns the bitcoins ...
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Why bitcoin change addresses are not just the own address?

Why every wallet generates a new change address instead of sending back to itself?
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When using a hardware wallet, how do I know that the change address is one that I own?

When signing a transaction on my coldcard, I see a change address that is not listed (at least on the first 30 addresses) on my coldcard. I believe coldcard would only allow me to sign a transaction ...
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