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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48 views

I am in Australia and just realised I cant withdraw or sell crypto from coinbase! How can I withdraw this amount?

I did not know that we could not sell bitcoin if in Australia! I did a mistake how can get this money back???
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3answers
203 views

Send data to bitcoin blockchain

Is it possible to send a transaction containing hashed values in the body of it to no one? I explain better. I would like to store data on bitcoin and I would need to send a transaction containing ...
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2answers
227 views

Buy coins using a australian bank account from Germany

I am German living in Germany but do own an Australian bank account. I would like to use that money to buy bitcoins but somehow am not able to at the big exchange markets. Whenever I identify myself ...
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3answers
3k views

How address balance is calculated?

It does not seem practical to scan every transaction on a block chain to determine the balance for an account. As the block chain grows this seems even more difficult and resource consuming. Perhaps ...
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1answer
39 views

How does miner order transactions?

I understand that miners can do whatever they are pleased to do. Either include 0 transaction or 1000 transactions in the block before mining. But I assume majority of the nodes run the same set of ...
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1answer
953 views

What does the sequence in a transaction input mean?

Following a transaction input: What is the meaning of the sequence number? What does the 4294967295 tell me?
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41 views

What's Bitcoin url or where can I find it

What is a Bitcoin transaction url? Is that the wallet or hash or what. I sent btc to address for game n it says confirmed but never came. Now the host is asking for transaction url but ?
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2answers
107 views

List transactions after losing wallet and private key?

I have made various transactions with my wallet using bitcoind. If I lose my wallet (and private key) and somebody else somehow knows my private key and does some transactions, is it possible for me ...
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1answer
58 views

Pay to many addresses transaction time?

I read here about the fees difference when paying to many addresses at once instead of doing it one after another. I was wondering whether this applies to the transaction time as well. Is it ...
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1answer
69 views

How can a reciever verify that transaction data was not altered by 3rd party?

My scenario: My web server: - Generates private and public, and a wallet address from the public key for a user website account - Server can not connect to the outside (Can not connect to the Bitcoin ...
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1answer
30 views

Internals of bitcoin block replication workflow from wallet, and conflict resolution

If I initiate a transaction from my wallet, does my transaction go to only one node? Does wallet client send to multiple nodes? What happens if no miner decides to include my transaction? Would my ...
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1answer
46 views

After a transaction of BTC, is it possible to change the amount of BTC?

Kindly Explain. If I have been transferred 10 BTC, but the transaction has not been confirmed. is it possible to change the amount of BTC 10 to 15?
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1answer
46 views

When exactly does Bitcoin transaction batch happen?

I need some help understanding the Bitcoin internal... The basic idea is: The miner assembles N transactions into a block (rather than creating a consensus for every single transaction). And hash ...
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2answers
102 views

A question about transaction broadcasting and block creation

Let's say we have transaction X and transaction Y. The timestamp of X is chronologically earlier than that of Y. X's spender broadcasts X to the network and the same goes for Y's spender. Let's say ...
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49 views

What is the correct way to extract all the private keys and transaction data from many wallet.dat files?

I have a ton of old backed up wallet.dat files. More than 150 ones. It's a big mess. I don't think that any of them have any coins sent to them, but there is a non-zero chance that one of them does ...
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2answers
86 views

Is there a risk in entering my Bitcoin-Core wallet passphrase, if it's for sending all my available balance and never using that wallet again?

I have Bitcoin-Core wallet.dat with a single address and a small amount of bitcoins in it. Say I want to send all the available bitcoins I have, and then never use that wallet again. Can I use an ...
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1answer
65 views

What does a wallet do?

what are the actual requirements for a bitcoin transaction? Not the simple inputs, outputs, verification or amounts, but in the technical sense. what does your wallet do? every thing I read says you ...
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1answer
35 views

Why does the locking script for MultSig contain PubKeys instead of PubKeyHash?

I am reading "Mastering Bitcoin" by Andreas Antonopoulos. In the transactions section, the locking script for normal account(single address) is OP_DUP OP_HASH160 <Cafe Public Key Hash> ...
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1answer
162 views

imported non spendable btc

Good day. I have a slight issue! A friend of mine has imported a few wallets to his main wallet. All the imported wallets has "Non Spendable Bitcoin" in them ranging from $2-$45k respectively. Is ...
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2answers
29 views

What if I change PubKeyHash in scriptPubKey of a transaction to my PubKeyHash?

Suppose a person A makes a transaction to person B and sends it to bitcoin network. Suppose I changed PubKeyHash in scriptPubKey of a transaction to my PubKeyHash and send it to bitcoin network. The ...
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2answers
45 views

How do I set up bitcoind to track all address balances?

Bitcoind only stores information about addresses that you've added. How do I make it store balance and transaction information for all addresses so that given any address I've never seen before, I can ...
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1answer
69 views

Will Bitcoin-Qt link itself to my IP from 2009 and show coinbase rewards for mining? [duplicate]

Back in 2009 I remember putting Bitcoin-Qt on my computer. I went straight over to the site and downloaded, but never put any wallet name or passphrase. Now in 2021 I remembered what I had done. When ...
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1answer
46 views

How can transaction in my account be wrong value

Have a transaction on wallet BTC. received .002 BTC. VALUE $300 million dollars. I thought the exchange would help. I now see other transactions for small amounts of BTC but valued at 157 million ...
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2answers
57 views

Are transactions from two separate bitcoin accounts on Ledger Nano S independent of each other?

John Doe creates two separate bitcoin accounts on a ledger nano s and funds the accounts from two separate sources. The first funding source is a known terrorist organization and the second funding ...
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1answer
42 views

what is flow of a bitcoin transfer from one exchange to another?

Can someone please share what exactly is flow involved in transfer of a bitcoin from my account on one exchange to someone else's on another exchange? for example: is there a transfer from my account (...
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1answer
642 views

Create a non-SegWit address in electrum wallet

I am trying to get along the electrum wallet command line in ubuntu. However, my exchange only accepts withdraws to canonical non-SegWit addresses (i.e. it only generates with a "bc1" prefix)...
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1answer
30 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 ...
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24 views

Signing a transaction(Signature must be zero for failed CHECK(MULTI)SIG operation)

I try to sign raw transaction. Here is the instruction I used for it Redeeming a raw transaction step by step example required Python code I used to sign the transaction import hashlib import codecs ...
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1answer
1k views

What does sigscript and witness mean?

I tried using the R scanner from the following link https://github.com/ca333/rng-scanner/blob/master/rscan.py, then I got results like this Bitcoin Address : 3EZ5yV5FARDqEZTXzwWNt33XLVhv7hqAS2 R: ...
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1answer
51 views

Missing Witness field in p2wpkh decoded tx hex

I have placed together a raw tx hex but when it's unable to be broadcasted as I keep getting an error below sendrawtransaction RPC error: {"code":-25,"message":"bad-txns-...
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12 views

I invest 5000 PHp in bitcoin and to ask me i need to pay the transfer fee [duplicate]

List item I invest 5000Php in bitcoin but after the mining my invest he ask i need to pay a transfer fee .is it normal to pay that because im from Philippine
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1answer
35 views

Is there any commands i put in the core that will suggest my account is from early days [duplicate]

Have you got anything i could put in the core that will point back towards or leave a clue to age of my account ,ie getdesendant/ansestors, mininginfo,or blockinfo, will any of these commands tell me ...
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1answer
49 views

How to generate p2pkh ScriptPubKey for coinbase transaction

One part of coinbase transaction is p2pkh ScriptPubKey (according to the book i read). Coinbase transaction here refers to the first transaction in a block , not Coinbase software/company. Suppose i ...
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1answer
33 views

why when making a command on bitcoin console does this appear staggered square brackets appear

Why when making a command of listunspent ,generate ,listlockunspent etc , Does this appear? [ ].
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1answer
43 views

Time needed for Bitcoin core synchronization

I had put on the process of synchronization on BITCOIN CORE and it has been around 2years since I had started the process and still its not completed, therefore now I would like to put some questions ...
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1answer
20 views

Detecting BTC transaction hash data: help

please I need some help in reading the hash data correctly. Given below transaction of total value btc 1.55821903 https://www.blockchain.com/btc/tx/...
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1answer
103 views

Clients without Isstandard() function

Are there any bitcoin clients without the Isstandard () function which would allow non standard transactions to be broadcast?
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40 views

BTC invalid transaction: double spending attempt?

I'm writing because I need some help in understanding the below hash data. Thank you. https://www.blockchain.com/btc/tx/976e6d64a4c98cf15ac917b98a04333f896b7cd15c1f2fdfb18f6fee668b670c Is it a double ...
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1answer
283 views

What are the Blockchain Transactions Status possible values?

Very noob at this. I'm seeing that a transaction in Bitcoin has a field called 'status': Example from blockchain: I was wondering, what are all the possible values that this field can get (or where ...
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1answer
95 views

How to get BTC transfer amount from raw tx using bitcoinjs

Suppose I have following object console.log(bitcoinjs.Transaction.fromHex(rawTx)); The output Transaction { version: 2, locktime: 1655960, ins: [ { hash: <Buffer dc 4d aa 10 db ...
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1answer
48 views

How to set up a listener on an address, and trigger events upon receiving transaction?

I have a task where I need to set up some sort of a listener on a particular bitcoin addresses for incoming transactions, and once a transaction arrives, I need to call some function in my web service....
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1answer
36 views

What's the difference between an 'address' and an 'addressHash' in a transaction on a bitcoind node?

I'm listening to a ZMQ socket; it's sending out messages every time my node receives a transaction. The message is the binary value of the transaction itself. When I decode the binary (using a tool in ...
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2answers
180 views

How can I get all transaction for a specific address using Nbitcoin?

How can I get all transactions for a specific address using Nbitcoin?
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1answer
41 views

How is transaction on exchanges that trade bitcoins connected to blockchain?

According to this answer, since the transaction on exchanges are internal, the transaction on blockchain is irrelated to them. But is the transaction on exchanges that trade bitcoins really not ...
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1answer
58 views

Characteristics of fraudulent Bitcoin transactions

I have a few questions about Bitcoin fraud investigation. What are the characteristics of fraudulent bitcoin transactions? For example, I've read some articles saying that a transaction that has only ...
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1answer
158 views

How to calculate fee in BitcoinJS raw transaction?

I have a transaction with 3 inputs and 2 outputs. 1output is the recipient and the other output is change address. How should I calculate the fee and apply it to output?
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0answers
25 views

What prevents another node from sending an existing transaction? [duplicate]

To my understanding, when someone wants to send a transaction they will broadcast a message to the nodes that they are connected. What stops someone from sending a transaction that was sent to them ...
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0answers
28 views

security@cryptosupport.Agency [duplicate]

Is security@cryptosupport.Agency A Genuine company?
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1answer
30 views

What’s the safest long-term hardware wallet solution?

Looking for safest hardware wallet solution, for long time storage. Thanks!
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1answer
126 views

How are OP_CSV and OP_CLTV backwards compatible

I am not able to see how older nodes prior to BIP 68, BIP112 and BIP 65 are able to prevent adding Transactions to their mempool when the newer rules are deliberately breached. I want to separate two ...

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