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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3answers
69 views

Why Coinjoin need other participants to increase their privacy?

Coinjoin is a method that make a transaction with other transaction of other parties to hide the link between txin and txout. In case of this, why we need others transaction? We have many bitcoin ...
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1answer
179 views

Electrum: Transaction Error with Restored Wallet

I am trying to import my bitcoin privatekey to my electrum wallet and use that wallet to create transactions. I restored the wallet using the command electrum restore <private key> The restore ...
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1answer
88 views

how to retrieve BTC from BCH address

I was on KuCoin and accidentally sent BTC to the BCH address (thinking I was buying BCH). Of course nothing shows in the BCH wallet on KuCoin. I can see it on the blackchain but cannot access it.
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1answer
138 views

Are there any blockchain parsers which calculate virtual sizes of transactions?

"The getrawtransaction RPC gets a hex-encoded serialized transaction or a JSON object describing the transaction." https://chainquery.com/bitcoin-api/getrawtransaction The output includes the vsize (...
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1answer
313 views

Jaxx Wallet ---> Cryptopea Wallet - unsuccessfull (doublespend)

I attempted to transfer funds from my bitcoin jaxx wallet to my cryptopia exchange bitcoin wallet. However transaction looks like it failed with doublespend error report. Anything I can do? This is ...
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1answer
471 views

If i pay 0.001 to cloud mining site such az minezone.io or bitbase.club or 99quick.cloud

If i pay 0.001 to cloud mining site such az minezone.io or bitbase.club or 99quick.cloud, they give my balance or no
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2answers
119 views

What is the most optimal way to parse a raw bitcoin block with python?

Let's say one is connected to a zmq socket and listening for rawblock. How you'd parse the block header is as follows: block_header = raw[:80] version = block_header[:4] prev_merkle_root = ...
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2answers
327 views

How to create a simple lightweight wallet (without mining) for an Altcoin

I am trying to create a wallet using electrum for an altcoin that uses the Scrypt algorithm. I am looking around for tutorials that can show a step by step process on how to create a simple wallet for ...
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1answer
371 views

Scam or not terabox? [closed]

Terabox.me has HTTPS. From Coinbase anyone can send money to Terabox.me and topup the balance. After making the topup the money is stolen. When you try to contact them they do not answer. Nobody shut ...
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2answers
69 views

Would requesting a refund for a Bitcoin order be a better way to transform your Bitcoin in national currency?

Let example.com be a shop on the internet accepting Bitcoin as payment system, along with USD payments. In the context of a refund, the user gets back USD. Now, Alice has, let's say some bitcoins, ...
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1answer
1k views

How to send bitcoins without the bitcoin client in PHP

Is there a way to send bitcoins programmatically without the bitcoin client using PHP?
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2answers
215 views

Private Blockchain Key Purchase

Please anyone explain as IQOPTION is telling me that I have to purchase a $700 private key to get access to my BTC Blockchian wallet once they wired my Finds in to this wallet?? anyone please have an ...
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2answers
28 views

Why same output address is invalid in a transaction on Bitcoin Core?

I'm studying Bitcoin Core currently. I found incomprehensible code, that shows making a transaction is rejected if there are same output addresses in a transaction. See Fig1, Fig2 Origin source code ...
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0answers
60 views

Blockchain unconfirmed transaction script to hack the unconfirmed transactions [closed]

Please do anyone here have the blockchain unconfirmed transaction script, please help me with it, it is a type of script that is used to send the unconfirmed transaction to your blockchain wallet, ...
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1answer
36 views

Fork and Longest Chain Rule

At the same time, A and B succeed in resolving the "Proof of work" challenge and both add a new block to their local blockchain, then they propagate the new blockchains to other nodes. I have 2 ...
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1answer
33 views

Understand double spending through an example

Let’s suppose you have 1 BTC which you try to spend twice. You made the 1 BTC transaction to a merchant (Transaction T1). Now, you again sign and send the same 1 BTC on another Bitcoin address to try ...
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1answer
20 views

Input of a transaction

If i want to send 0.2 bitcoin to Bob, will my transaction (in the input field) contain the list of all my previous transactions (both the ones in which i received bitcoins and the ones in which i sent ...
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0answers
9 views

Bitcoin cash bitbox sdk falis when trying to send tx [closed]

Trying to run the bitbox scripts to send transaction presented here: https://developer.bitcoin.com/bitbox/docs/transactionBuilder. When submitting the transaction, I always get the following error: { ...
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1answer
62 views

Transaction confirmed for hours, not available in balance

My bitcoin transaction has been confirmed for more than 24 hours and also on the block chain but it has not yet reflected on the receivers balance, all transaction details are correct,what could be ...
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0answers
34 views

Manipulation of Bitcoin RPC with programmatically

I'd like to use Bitcoin source code(only RPC part) to manipulate with programmatically. I have bitcoind and bitcoin-cli installed in my local computer but I don't know how to write code for my ...
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2answers
42 views

Sent BTC from Coinbase, blockchain explorer says Confirmed. Is recipient lying or could something else be the issue?

Sent BTC (approx $500) from Coinbase, Blockchain explorer says Confirmed. Is recipient lying they have not received or could something else be the issue such as his wallet? Recipient says it could be ...
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1answer
2k views

Bitcoin protocol and Wireshark

I captured bitcoin protocol communication in real-time and it is present in fig1 and fig2. Fig1 In red box, there are many types of command. First Question: How can Wireshark detect bitcoin ...
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3answers
359 views

Instant confirmations with pre-published, locked, transactions

(Clarification: This is not an attempt to solve the problem of a vendor taking the money and running without handing over the merchandise. Problems like that can't be solved without some third party. ...
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1answer
38 views

Problem using op_checksequenceverify (op_csv) with relative time flag

i have trouble in using op_csv. The spending condition is not match to my expectation. FUNDING Redeem Script Hex: 03010040b27576a91451d2a5e04d25ceaa86e600a6ec34bd24431c675d88ac Redeem Script Asm: 03&...
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1answer
40 views

Usage of PkScript as a part of Inputs of a Transaction

I've seen transactions with PkScripts as part of Inputs eg : Example of such a transaction Could anyone please explain how this PkScript is used ?
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1answer
28 views

How to get a description (comment) of the transaction?

From this json response from blockchain.com How can I get a comment on the translation from here?
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2answers
1k views

Can bitcoins be traced to scammers

Was scammed recently of €5600 .Was approached online and encouraged to buy bitcoin through coinbase. I had no experience of it before. Was told to send my bitcoin to a company address which I now know ...
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1answer
29 views

The result of bitcoin-cli getpeerinfo command

When I type bitcoin-cli getpeerinfo in shell, conspicuous property of the result are addr and addrlocal addrbind. 14.xx is my address and others are peer's address. I know that Bitcoin client can do ...
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2answers
55 views

Transfer money from crypto account to normal bank account

I'm totally unknown about this topic so I come to all of you with my question. I sold something online and the buyer wants to pay me through his cryptoaccount. But then he told me that there is an ...
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2answers
45 views

Person did not receive the amount of bitcoin I sent

I sent $4300 in bitcoin to my friend and he only received $415. I'm so upset because I lost over $3500. Is there any way to get this corrected?
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1answer
52 views

Is Wallet softwares safe? then how verify?

Some day, I thought that there are may fraud wallet to steal bitcoin. It is really very achieved as following: User should make a keypair at first time. at this time, wallet software can send ...
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1answer
128 views

Can we construct a UTXO which is spendable only via proof of work?

Do the current Bitcoin opcodes and transaction size limit allow constructing a UTXO which is only spendable if a specified amount of work has been performed? So the spender, would provide a nonce as ...
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1answer
47 views

How to programmatically send Bitcoins without requiring a local copy of the blockchain?

I'm quite new to Bitcoin development! I've seen the documentation about RPC commands, available when you have a local copy of the blockchain. But I'd like to know if it's possible to create and ...
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0answers
17 views

I want to send Bitcoin to a wallet. That wallet is to receive the bitcoin at a future date [duplicate]

As the title says I want to send Bitcoin to a wallet. That wallet is to receive the bitcoin at a future date. Basically I'd like to hodl some of my Bitcoin to be paid to my Children far into the ...
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2answers
58 views

Can a bitcoin transaction from a specific bitcoin address be banned? (via mining pools)

Can a bitcoin transaction from a specific bitcoin address be banned? (via mining pools) Suppose Satoshi Nakamoto wants to send some bitcoin from one of his bitcoin address, can the mining pools ...
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1answer
33 views

Can collective mining pools refuse to recognize a mining block mined by a specific miner?

This is a continuation to the question: Can a bitcoin transaction from a specific bitcoin address be banned? (via mining pools). Suppose Satoshi Nakamoto sends bitcoins from one address to another, ...
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2answers
203 views

Is Segwit really safe and reduced?

In the Segwit rules, transactions propagated to legacy node doesn't have any signature. so it will be valid as well as in terms of fresh node(supporting Segwit). First question: In this point, if ...
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1answer
31 views

How a SegWit transaction is accepted without witness?

I would like ask 2 questions. First, as perspective of legacy node(doesn't upgrade software): When SegWit transactions are transferred, witness data is stripped. It means that there are no signatures ...
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1answer
1k views

Is there a tool that searches for a specific BTC amount in a specific date range?

Suppose I want to search for a transaction of exactly 445 BTC in the date range 27 July 2013 and Aug 3rd 2013 ... is there an (online?) tool that has this kind of search capabilities?
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2answers
63 views

Do mined coins show up on blockchain explorers and can the balance of the addresses that mined the coins be seen?

Somebody wants to do a deal for a bitcoin transaction but when proof of the coins is required they say that the coins will not show up on blockchain.info as they were "mined coins". Is this really ...
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2answers
130 views

What is the source of initial transactions of bitcoin?

Sorry, if I am wrong or silly! It is understood that: a) Satoshi Nakamoto sent the first transaction to developer Hal Finney on January 12, 2009, the genesis block contains 1,073 transactions and he ...
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1answer
150 views

Transaction with unparsed input address ? What does it means?

I just see this transaction which is special : one of input address is spending a valid amount… But why is it unparsed ? Why no ScriptSig while stil being valid ? Also what’s the purpose ?
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1answer
34 views

What stopping miner from altering value in transaction to increase transaction fee?

I'm learning bitcoin through this book "Mastering Bitcoin, 2nd Edition by Andreas M. Antonopoulos". I'm at Chapter 6 "Transactions". Here is my doubt: Example there is node A, received transaction ...
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2answers
31 views

Difference between block hash and transaction hash in bitcoin-core

Is there a logic based on which one can determine if a given 32-bit hash corresponds to a transaction or a block without enquiring a bitcoin-client? In other words, how do I differentiate or ...
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1answer
12 views

Processed withdrawal not reflecting in my blockchain wallet

Given below are the transaction details for the transaction which is not reflecting in my blockchain wallet, Transaction batch :f28888630e090d083ce2be5658f526b148d3e8259a33bbcfa58063cc13e8a4c0 ...
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2answers
52 views

How can I consume my whole bitcoin balance in a single transction? Is it possible to use multiples UTXOs in a single transaction?

I want to make use of a single bitcoin address for payment. I'm using bitcoinjs library's transction builder for creating my own transaction. Can anyone help with a proper code to use multiple UTXO's ...
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2answers
51 views

Trading crypto currencies with dollars

After I have bought a crypto currency at an exchange like Binance can I sell for dollars if it is going down. Basically if I have a profit from a currency what can I do with it to protect it?
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1answer
222 views

How find own address in testnet using bitcoin-cli?

I have bitcoin-core installed, I am running it in testnet mode. Now if I want to fund my wallet, I need to know the receiving address. How do find my receiving address, so that I can fund it and then ...
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2answers
40 views

Taking out bitcoin from offline wallet

Ok, let's say I have an offline wallet for storing my bitcoin, now I have got a good amount of bitcoin, but i don't want to take out everything from the wallet, I only want to take out a small amount, ...