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.

Filter by
Sorted by
Tagged with
0
votes
1answer
19 views

I Found old wallet but there is new mined transactions but unconfirmed

the wallet is old but transactions are new 2020 transactions type : mined unconfirmed
0
votes
1answer
26 views

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 ...
0
votes
1answer
13 views

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 ...
1
vote
0answers
20 views

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 ...
1
vote
1answer
29 views

How do I get new unconfirmed transaction from mempool?

I know there is a function that allows me to see all transactions that are in mempool, but is there a way to see every new transaction that enters mempool? Like log to file whenever new unconfirmed ...
0
votes
0answers
21 views

Using a bitcoin library to create digital signatures in TypeScript/Javascript

I have been trying to sign my transactions with a digital signature for the past few days but seems that libraries in bitcoin, as far as to my knowledge do not provide a simple way to sign the ...
-1
votes
0answers
23 views

I can't install Python keyutils

I can't install txnutils and keyutils it shows some error like keyutils.h any help how to install this two file on python 3 and also I can't do this Import ecdsa Import hashlib Import txnutils Import ...
3
votes
1answer
275 views

Is it theoretically possible to have an inverted nLockTime?

For example, an nLockTime == 500 prevents a transaction from being included in any blocks before the block 500. Why isn't there a parameter like nExpireTime == 500 that prevented a transaction from ...
0
votes
1answer
37 views

Cannot Find Transaction from Blockchain Explorer

I just withdrew some Bitcoin (BTC) from FreeBitco.in to this address: 1FCFLjBDk3BGbp2vtEPRNLcbGisZRUWfbV My withdrawal was confirmed by the website an hour agao, and I received an email from FreeBitco....
0
votes
2answers
33 views

How do I withdraw from an address

I made a Crypto purchase from Shapeshift yesterday, which was fulfilled by one of their partners called BANXA. I just received an email saying "Your order has been fulfilled and you will receive ...
1
vote
0answers
21 views

Sign transaction externally

I create a transaction with inputs from a given address / public key without signatures. Every input needs to be signed. I use a different method to generate the signatures so I can't provide a ...
1
vote
2answers
28 views

Is the first input in a transaction always the sender's?

I'm trying to figure out what the input address is from a transaction with multiple inputs. Can it safely be said that the first input in the inputs of the transaction is the sender's?
0
votes
1answer
42 views

How to create a transaction input from tx id of UTXO?

I'm in the midst of working this github --> https://github.com/karask/python-bitcoin-utils/blob/master/examples/spend_p2sh_transaction.py Sorry as I'm not that good in this. I would like to ask the ...
1
vote
1answer
14 views

Transaction parsing - Satoshi value

how exactly is the satoshi value in a raw transaction calculated to decimal? Because on blockchain.info, I cannot figure out how they parse the raw transaction from that value to the JSON result. I ...
0
votes
1answer
38 views

I sent bitcoin and put low tx fee (4sat/b). Unconfirmed for 3 days. Can it be forever? [duplicate]

I just want to withdraw bitcoin and put a low fee. It's been 3 days and nothing happened with it - Unconfirmed. So, can it be forever? Or how much time it may take to be confirmed? Or what should I do ...
0
votes
0answers
20 views

I made a transaction 7 hours ago, the transfer has not yet arrived. I didn’t know that it’s impossible to choose a low commissio [duplicate]

Good afternoon, I made a transaction 7 hours ago,0.0059 BTC, commission 0.0002 the transfer has not yet arrived. I didn’t know that it’s impossible to choose a low commission, because I did it for ...
1
vote
2answers
30 views

How to raise the bad-txns-vout-negative error?

I wanted to replicate the bad-txns-vout-negative error scenario. I tried the following but getting 'Amount out of range' only: Here is the command i tried: bitcoin-cli -named createrawtransaction ...
0
votes
1answer
56 views

Bitcoins stolen during transaction

guys! Recently, I transfered bitcoins from paxful wallet to bitcasino. Usually, it worked. Now, I cannot reach them, it looked to me like they were stuck on the way and I wanted to ask either side ...
9
votes
3answers
819 views

What's the most efficient way to create a raw transaction with a specific fee rate?

There seems to be a chicken and egg problem when it comes to creating a transaction that has a specific fee rate (sat/kW). In order to set a specific fee rate, you need to know what the total weight ...
3
votes
2answers
43 views

In Electrum, how does one watch/poll a wallet for an incoming payments to a certain address via API?

I want to create a simple way to accepting bitcoins on my own, using Electrum. I don't except big volume. I suppose, I'd have at most a handful of incoming payments in the beginning. That is, I ...
1
vote
1answer
33 views

What happens if I buy BTC from an ATM, but the transaction never confirms?

I bought bitcoin through the atm machine, it was sent to me but is yet to be confirmed over 52hrs.. if the transactions later disappeared from the mempool / blockchain, how will the sender get back ...
0
votes
0answers
39 views

Abandon transaction in Bitcoin Core with -zapwallettxes (transaction isn't online in mempool yet)

EDIT: I have found another solution for my problem. I've started Bitcoin Core with my wallet.dat backup, which I have saved before doing the transaction. If I am right and Bitcoin Core hadn't send the ...
0
votes
1answer
63 views

How to check if one transactions is from the same wallet (public key) as a previous one

I wonder how to figure out whether one Bitcoin transaction is from the same wallet (public key) as any previous transaction in order to proof the ownership of a wallet.
1
vote
1answer
35 views

transaction (s) not going through due to low fees selected [duplicate]

I'm having a problem with a bitcoin transaction (not through btcpay, but i don't know where else to turn to). I sent 0.06btc from my wallet to my father (20 hours ago), and stupid as i am, decided to ...
-1
votes
3answers
40 views

How to deal with situations when the buyer tries to gain the system? (online shop with price in fiat, BTC payments also possible)

I'm a developer. I have a custom online store, with code I wrote myself, where I sell products in fiat money. I plan to introduce payments in bitcoin. Issue: the customer may try to gain the system by ...
2
votes
3answers
86 views

Is there a way to see the precise time of when a transaction was sent out?

I'm a developer. I'm not really knowledgeable in bitcoin development, yet. Say, I'm using Electrum wallet. I share an address with someone. The thing is that I need this someone to pay a certain ...
0
votes
0answers
36 views

My unconfirmed BTC transaction on blockchain just disappeared [duplicate]

I had an unconfirmed BTC transaction on blockchain.com for about 2 days plus and now I log in and there's no transaction again. I checked blockchain.info using the hash; all wiped nothing is showing, ...
0
votes
1answer
81 views

Pending Unconfirmed Transaction for 5 days

I have been waiting on this transaction to confirm since July 16th when I made it. I have no idea as to why this transaction is not being fulfilled. Here is the blockchain of the transaction. https://...
0
votes
2answers
38 views

bitcoin node take transactions fee and validate them [closed]

a bitcoin node check transactions and validate them . does it take transaction s fee. when validate transactions how much bitcoin transaction fees for a node.and possible reduce fees in a bitcoin node
0
votes
1answer
31 views

How do I find where the BTC are sent to from a blockchain.com address page?

I could see a wallet address receiving BTC easily on a blockchain.com But it seems very hard to find out where he/she spend the BTC. Does anyone know how to track that? The screenshot below: the red ...
1
vote
1answer
35 views

Where does “Included in Block” value comes from?

I was exploring transactions inside of a blockchain using this site, and inside of a transaction I noticed there is attribute called Included in Block and its description is: block this transaction ...
0
votes
2answers
27 views

Transaction in future

Is there any plan to add a feature so that you can perform transactions that will be spent in the future and stored on the network? For example, I want to send some bitcoin to my kids after each N ...
1
vote
1answer
36 views

What valid transactions are not broadcastable?

Many valid transactions are not broadcastable by default in bitcoin core to avoid attacks that could harm the network. These would rarely be found in a node's mempool but could, however, be found in ...
0
votes
0answers
47 views

how i can find private key from Y X Z [duplicate]

How can I find the private key with X and Y and Z in the transaction i have this ('THE R VALUE is :', '0cf435db180216f3aaa5c2cb8231cbccf2f6824fc0051396b45e4ab01bb0f5e3') ('THE S VALUE is :', '...
1
vote
1answer
39 views

How small can a payment be while still adding value to your wallet?

If you receive 1 satoshi (0.00000001 bitcoin) in a transaction then adding it as an input to a larger transaction would add more than 1 satoshi to the transaction fee. This means the 1 satoshi shows ...
0
votes
0answers
32 views

How may i get all transaction from A address to B address & opposite? [duplicate]

So i just finish download the blockchain from Bitcoin Core, how may i load them files, filter all the transaction from an address to another & print it to text file with detail?
3
votes
2answers
52 views

How does the sender know the receiver's public keys in a m-of-n transaction?

Assume that Alice is controlling an address that requires multisig to spend bitcoins. Someone wants to send Alice bitcoins and this sender needs to create a scriptPubKey as part of the output paying ...
13
votes
6answers
4k views

Why is there “Change” in Bitcoins?

I have read about a change address and wondered why there even is the concept of change? Let's say I received 1 BTC from some person A and I want to send 0.4 BTC to another person B, afterwards. From ...
0
votes
1answer
31 views

Blockchain transaction unspent [duplicate]

This is a bitcoin transaction as shown in a blockchain explorer. What does ‘2 confirmations’ mean here? Sorry for the picture quality. Which one is the best answer? 2 confirmations by miners are ...
0
votes
0answers
21 views

What happens if 2 transaction spend to the same output? [duplicate]

I'm looking though the blockchain, and I've found 2 transactions in different blocks, which have the same hash: block 91812: "result": { "hash": "...
1
vote
1answer
72 views

How to verify if a transaction is signed correctly?

Given an arbitrary signed raw transaction, how can we easily verify if all inputs are correctly signed (assuming all inputs are existent/unspent and the fee is higher than zero)? Bitcoin core's RPC ...
0
votes
1answer
29 views

Sending fund to an existing bitcoin address

BTC address1 has 2 BTC BTC address2 has 4.5 BTC Assume the address is reused, the fee is zero. Address2 sends 1.5 BTC to address1. Thus, BTC address1 has 3.5 BTC and BTC address2 has 3BTC Since BTC ...
0
votes
2answers
20 views

Blockchain.com transaction explanation

I'm query the BTC blockchain using blockchain.com to understand my own transactions a bit better. One thing that confuses me in the inclusion of the Pkscript (scriptPubKey) under "Inputs" in ...
0
votes
0answers
24 views

Parsing transaction hash from rawblock data

I got block raw data next url https://blockchain.info/rawblock/00000000000000000002447735c7723ee9188322c0938e6587866a4458b9135f?format=hex Can I find transaction hash in url used python?
0
votes
1answer
15 views

Can we determine which one of the referenced outputs corresponds to a cashback transaction in BTC transaction scripts?

let me quickly elaborate the question. The structure of a BTC transaction script looks somewhat like the following example "...
2
votes
3answers
68 views

Does descendant size affect transaction fees?

While calculating the transaction fee miners usually take ancestor size into the account. But does the descendant/output also affect the transaction fee calculation? Is descendant count correlated to ...
0
votes
1answer
80 views

Why does my wallet.dat file contain scripts starting with 0014?

I am trying recover coins from old (2012) wallet.dat. I don't know the addresses. So I dumped several wallet.dat files from Bitcoin Core. I have checked over 25,000 addresses which contain 0 BTC. ...
-1
votes
1answer
59 views

Im new! I just need to add bitcoin to my wallet for a one-time transaction! Pls help! [duplicate]

Ok, Im new. Totally. ALL I WANT TO DO IS USE MY MONEY TO PUT BITCOINS IN MY WALLET IN ORDER TO MAKE A SINGLE TRANSACTION. THAT IS IT! I have a Galaxy S10e & this was one of the choices of wallets ...
0
votes
1answer
31 views

How Crypto Payment Processors Handle Wallet Balance Privacy?

If an online store accepts crypto payments directly into its wallet there is a problem: "Anyone can make a small transfer to any BTC address derived from the MPK so they can watch the store's and its ...
0
votes
0answers
41 views

Understanding how balances work

So I'm running the btcd node and wallet in simnet. I've generated more than 100 blocks. I've a few accounts on the same wallet. The list of the accounts: $ btcctl --rpcuser=foo --rpcpass=123456 --...

1
2 3 4 5
57