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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Generate P2SH-P2WPKH

I want to replicate the same scenario of bitcoin-cli getnewaddress "" "p2sh-segwit".To achieve my goal I'm following this guide My Wif is: cPc4kNYhmuEym2VuskuLbhvPnJwXZGKcR6eRQL4Rv3KCJKUsatmQ then ...
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How does the daemon get a transaction via a hash

I am wondering how the daemon gets the transaction data from just a hash. I'm NOT asking how i can get it, i know i can get it via the rpc, i am asking how the daemon does it behind the scenes. Does ...
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23 views

Strange BTC rate behavior when buying bitcoins

I have decided to buy some bitcoins using the Bitcoin.com wallet app and I have just received the invoice for my transaction of 1000 EUR to BTC. The rate of the BTC for the last days is always around ...
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2answers
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Generate P2SH-P2WSH

I want to generate P2SH-P2WSH with script P2PKH. My public key is 027712968e8f2f9dfa79abe10940a3d915a0c95a0b97750881e6201acf2b66da97 SHA256 and RIPEMD160 of Public key ---------- Witness Script ...
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2answers
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Creating a custom transactions

I am currently learning how to create raw transactions. I can already create standard using bitcoin core (0.19.1), but when I wanted to create with custom opcode like this: asm: OP_HASH160 ...
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1answer
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How to find Reused R values

I use software from https://github.com/ca333/rng-scanner , I try to find r that is reused. from the software I found results Bitcoin Address : 1GQdrgqAbkeEPUef1UpiTc4X1mUHMcyuGW In Input NR : 141 ~ ...
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1answer
23 views

Use case for multiple inputs in a single transaction

Is there a way to ascertain a pair or more of Bitcoin addresses belong to the same wallet on the basis an address pair was used as input for a single transaction? Can I verify the address pair input ...
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1answer
33 views

getting public key from any raw transaction - what to take care of?

i need to retrieve public key of transaction sender. now i know there are 03 compressed pubkeys and 04 uncompressed ones. but how is this working with segwit and multisig addresses? can you please ...
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1answer
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Handling “dead” (double-spent) transactions in my mempool

Say I receive transaction A and it is in my node's mempool and unconfirmed. Then a block gets mined directly, which spends one of transaction A's inputs, rendering transaction A invalid. What can I ...
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Formula to calculate the virtual size of a transaction (SegWit address)

Cross posting from: https://stackoverflow.com/questions/60758542/calculate-virtual-size-of-a-transaction-segwit-address This tutorial: https://bitzuma.com/posts/making-sense-of-bitcoin-transaction-...
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1answer
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Wha is the meaning of “Position in mempool” of a transacion?

I am using electrum wallet and when I am receiving a transaction I see an attribute with name "Position in mempool" and the value is "8.61MB from tip". Since the transaction is still unconfirmed, I ...
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1answer
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access QR from a month ago

First of all, I am clueless about using bitcoin. I sent money to a friend in Japan. I used a QR that I had used before. I did not see that he wanted me to use a new QR. Apprently he cannot ...
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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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1answer
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How to know what wallet a Bitcoin transaction is at now

I have a question. Someone has taken/stolen bitcoin from me and I can see this transaction: https://blockstream.info/address/1HFea6fugbV5cRG3dCgFgiDWtJL1xiTkki How can I track to what bitcoin wallet ...
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How this bitcoin code works?(Fake transaction works?) [closed]

I dont know how this code works.Can someone tell me?Creator tell me it's to use the p2sh to generate a "fake" transaction.But the code seems missing something to work.And i also cannot build it in the ...
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1answer
63 views

Standardness rules related to BIP 16 (P2SH)

I can read in BIP0016 wiki the P2SH Specification Transactions that redeem these pay-to-script outpoints are only considered standard if the serialized script - also referred to as the ...
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Address final balance is 0 after receiving 0.003 BTC

I generated a new BTC address (address A). I tried to send 0.003 BTC to address A. After sending them from my coinnomi wallet, the balance of address A remains 0 and from output seems that 0.003 BTC ...
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How does a transaction in Bitcoin of git commits look like?

In the official website of IPLD, there is a use case mentioned of referencing git branch's commits to bitcoin transaction: Reference your latest commits in a git branch to a bitcoin transaction to ...
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2answers
55 views

P2SH non-segwit and no multi-sig

I have a P2SH no segwit address (regtest) I create the redeem script with SHA256 and RIPEMD160 of my public key and prepend 0x0014 ---------- Redeem Script --------- ...
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1answer
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Where to find the amount that is being sent in a signed transaction? [closed]

I was looking at a transaction I just signed for USDT and I decoded it to compare stuff to my original address and amount. Just to be careful. I found the address that the data is being sent to in ...
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1answer
34 views

Block construction

I'm in the process or preparing a lecture on cryptocurrency and have studied dozens of sources. I have a pretty good understanding of most aspects of the bitcoin blockchain scheme. However, all of ...
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Can I use Electrum as a storage wallet on Windows and transfer purchased bitcoins there from Coinmamma until I am ready to use them?

I have Exodus as my transfer "Hot" wallet. I want to have Electrum as my storage "cold" wallet.
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1answer
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Given a Bitcoin transaction as JSON data, how can I determine the number of confirmations?

According to blockchain.info, 4,198 confirmations have been received on the following Bitcoin transaction at the time of this writing. Give then following Bitcoin transaction as JSON (ref: transaction ...
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2answers
131 views

What will happen if transactions are being generated by multiple person with same one private key?

Let's assume people got the same private key of 1 BTC amount(Unspent state) for somehow lucky. Let's call that wallet address is WALLET_A. So people trying to send all the balance to their each own ...
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Bitcoinjs Transactions using PSBT in Bitcoinjs Lib

I am trying to use the bitcoinjs lib to create a tx using PSBT const testnet = Bitcoin.networks.testnet const tx = new Bitcoin.Psbt(testnet) I am not using transaction builder as it throws ...
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How Do Attackers Forge Bitcoin Blocks And How Do You Identify Forge Bitcoin Blocks? [duplicate]

I have read that a block contains several bitcoin transactions and an attacker can forge fake blocks. Does these forged fake bitcoin blocks cost the attackers money for mining or was it just ...
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How To Create BTC Raw Transactions With 0 BTC Wallet And Broadcast It On Blockchain Network? [closed]

https://www.youtube.com/watch?v=2NFMMNXyHNE I watched a YouTube video of someone that created several BTC raw transactions with 0 BTC Wallet and broadcasted it on blockchain network with valid ...
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29 views

Output has an “Unknown” status?

Looking at transaction https://blockstream.info/tx/c362fe7f8cb94b363c0c7cd5a0f82cf0dfa7733ab8a3b90df3eb9f0bff912148 some outputs are having type: nonstandard. There are 2 questions related to it: ...
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1answer
31 views

How miner deduct Transactions fees from transaction?

How is it possible for a miners to deduct the transactions fees from the UTXO output which is locked by locking script or encumbrances?
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1answer
29 views

MITM attack in hosted wallets

i have a question: in the web wallets(hosted wallets)when user want to make a transaction and send the information to the wallet server , can a one change the information(man in the middle attack)?
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1answer
71 views

Sign transaction legacy with Openssl

I want to understand how Bitcoin sign transactions with Openssl. I saw this post But I have some issues. Above my private and public keys. Private keys: $ cat chiave_priv_3.pem -----BEGIN EC ...
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Sign Raw Segwit (P2WPKH) Transaction Digest

I have a simple transaction that I want to sign the digest of, but I'm not sure if I've got the raw transaction correct, therefore my digest is incorrect. The transaction has one input and one output,...
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Step by Step to Connect to ElectrumX via Nodejs

I am developing a simple app that will need to retrieve BTC wallet Address Balance and relative transactions Initially I thought to use some existing APIs (btc.com, blockchain.com etc.), but the ...
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26 views

Why are there equal send transactions for each receive on Bitcoin Core?

I've lunched a new Bitcoin core wallet, and generated some addresses using it. Then I tried to receive some BTC to these address, and then, found out if I receive some BTC, there are equal send ...
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1answer
65 views

Create Custom Script with 2-3

I'm studying P2SH, and I want to create a custom script. I already created one tx but without OP_CHECKMULITISIG as you can check at this link https://tbtc.bitaps.com/...
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Tool to generate graphical DAG from a seed

I'd like to have a tool that generates a graphical DAG display from addresses generated from a seed. In particular to distinguish which transactions are for "receive" addresses, and which are for "...
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3answers
65 views

Does each block contain all the Bitcoin transactions for that time period?

When a miner validates a block, does the block contain all transactions in Bitcoin for that time period? So does a miner validate an individual transaction between two parties, or are they validating ...
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29 views

Bitcoin non-standard transaction

Is there a way to create raw bitcoin transaction without balance to a new bitcoin address in the bitcoin testnet. Maybe by referencing past utxo but signed with a different key. It might not be like ...
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1answer
96 views

I sent Bitcoin to an address but the recipient hasn't yet received it. It has been 2 days

this is the Transaction ID: 81f0babd0a3c6d9be17db45a62932679b05bac6a30df1abfb47c2eee83d9f0ff. THe address is not wrong but the receiver couldn't get the payment.
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1answer
126 views

Unspendable bitcoins on blockchain [closed]

Gooday, please i want to know how to transform my non spendable bitcoins to spendable bitcoins on blockchain account for the sake of being able to spend them please someone help me out I'm lost. I ...
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0answers
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Which is the suitable simulator for showing that transaction throughput has been increased while changing transaction structure in bitcoin blockchain?

I am working on a research in bitcoin blockchain where I am making some changes in conventional transaction structure of bitcoin blockchain. Due to this, it helps to increase the transaction ...
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3answers
290 views

Are all three Bitcoin address types interoperable (legacy, segwit, native segwit)?

is it possible to send transactions back and forth between all 3 address types (legacy, segwit, native segwit-bech32)? Or is one of them not able to send to another?
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1answer
42 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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34 views

P2MS transaction

I'm studying Bitcoin's Protocol and I want to replicate P2MS in regtest. Yes I know that I can use P2SH but I'd like to understand it more in depth. I Have 3 addresses P2PKH (A and B and C). A has 50 ...
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2answers
97 views

How to parse transaction script to address the correct way?

i am currently parsing blockchain transaction data from the raw hex blk00000.dat files downloaded by Bitcoin core. In order to validate, i compare my results with blockchain.info from time to time. ...
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1answer
57 views

Signmessagewithprivkey result is different than txinwitness

I'm studying segwit and I'm doing some experiment in regtest. I create a raw transaction with P2SH address. My Transaction data without signature is: ...
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2answers
45 views

How bitcoin finds a few transactions earlier account balance from outputs?

I am reading and watching about transactions and they say a transaction's input is previous transaction's output. They all show diagrams in which these transactions are consecutive. How an account's ...
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1answer
36 views

Transaction malleability in Testnet

I want to replicate transaction malleability to study it. I have two transactions data signed in testnet. One it's the original, ...
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1answer
32 views

scriptsig-not-pushonly (code 64) during send transaction in regtest

I create a transaction in regtest without send it, I have transaction data signed. I modified a little bit the scriptSig in order to replicate transaction malleability, I add two operations (2 OP_DROP)...

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