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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.

283 questions with no upvoted or accepted answers
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9
votes
1answer
110 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 ...
5
votes
1answer
1k views

Cannot create a transaction

I am trying to create a transaction on the bitcoin testnet, using bitcore: Error Message : SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data Here is my code: var ...
4
votes
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?
4
votes
1answer
346 views

How to explore transaction chain via Original Bitcoin API as blockexplorer does it

Is there any possibility to explore transaction chain via Original Bitcoin API (https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list) as the blockexplorer does it. If not, why?
3
votes
0answers
796 views

How to directly query leveldb database to get get a record by transaction hash or by sender's address?

I learned that the blocks and transactions are stored locally in .bitcoin/blocks/index and .bitcoin/chainstate databases, respectively. I want to make a direct query to those databases to measure the ...
3
votes
1answer
963 views

Building Signed Bitcoin Transaction in Java

I have been attempting to build my own raw transaction generator in Java which I can then broadcast on the testnet network. The problem is when I attempt to broadcast the transaction it says there is ...
3
votes
0answers
3k views

Electrum transaction still says unconfirmed parent

A transaction from Electrum is still showing unconfirmed parent even though the previous transaction in the chain has completed. Electrum has shown this for 24 hours now. I realize that my fee is ...
3
votes
2answers
893 views

C# BC, successfully creating and signing raw transaction

First time on stackexchange to ask for help, sorry if i make mistakes (english is not my native language). I try to create a valid raw transaction on C# with bouncycastle and i seems stuck, not able ...
3
votes
0answers
91 views

Whisper Implementation in Bitcoin

Is there some kind of implementation in bitcoin to communicate between nodes, which is similar to the Whisper Communication in Ethereum ? Whisper, is a communication protocol for DApps to communicate ...
3
votes
1answer
1k views

Please help. BTC has left Armory wallet and shows as gray, but says “Not in the blockchain yet”

I sent 1.5BTC in the usual way from my Armory wallet, but the transaction shows in gray as if it is still pending. When I click more details it says "Not in the blockchain yet". If I search for the ...
3
votes
0answers
365 views

Cannot obtain a lock - Already deleted lock file

I am trying to open Bitcoin Core of "Cannot obtain a lock on C:User/App..." I deleted the lock. file like previously suggested but cannot find a solution after that! If I reinstall will I loose the ...
3
votes
0answers
309 views

How to ignore balance check to cancel unconfirmed transaction (double spending)

I need to cancel a transaction that was sent without fee (using Blockchain.info). It is currently "Unconfirmed". The only way I have found is to do a double spend of the whole wallet, specifying a ...
3
votes
3answers
1k views

Get transaction that spent a transaction id

The blockchain.info API allows for querying information about a particular Transaction by its ID. But if you want to follow the coins to the next transaction, I'm not seeing what the next query should ...
2
votes
1answer
64 views

What is transaction “finality”?

bitcoind IsFinalTx() as seen here checks the properties of a transaction in this order: Is nLockTime exactly 0? That's final. return. If it's not 0, is it below the current block height / time? If so,...
2
votes
0answers
22 views

Script and DER in P2PKH

Im trying to figure out the script and DER In P2PKH, the "first part (scriptsig)" push in stack (<sig><pubK>) because is it DER? Instead the "second part (scriptPubKey)" you can map the ...
2
votes
0answers
238 views

Broadcasting signed transaction from Watching wallet using bitcoinj

I am working with watching wallet and Offline wallet using bitcoinj, I created Watching Wallet using tpub key of Offline Wallet I am receiving payment on watching wallet Fine, now I want to ...
2
votes
2answers
137 views

API for multiple blockchains

Is there an API to get data for multiple blockchains? Most blockchain explorers already offer an API but I'd like to be able to get information for different blockchains through the same API.
2
votes
3answers
317 views

How do exchanges set their transaction fees?

I was reading on the Bitcoin wiki (https://en.bitcoin.it/wiki/Transaction_fees ) that a user can set his own fees when conducting a bitcoin transaction. Like many, I have a Coinbase account, but I ...
2
votes
0answers
370 views

Abandon Transaction or Increase fee

I'm using Bitcoin core v0.15.1 and I am trying to send my BTC to coinbase. I have waited over 72 hours since initiating a transaction and when I right click the "abandon transaction" and "Increase fee"...
2
votes
1answer
175 views

Format transactions into “from”, “to”, “value” and “cost”

I'm trying to write a script that parses the entire blockchain into a database. But I'm having issues figuring out how to store what I need to then aggregate the results and build a transaction list ...
2
votes
0answers
896 views

How is the transaction fee for sending bitcoins using Electrum wallet calculated ?

I am trying to understand how is the fee for transaction calculated for desktop wallets like electrum.
2
votes
1answer
4k views

manually signing bitcoin transaction

I'm trying to create a BTC transaction with one input and two outputs, one for change and one OP_RETURN to anchor data. And I'm doing all of that on my regtest backend. The raw unsigned transaction is ...
2
votes
0answers
78 views

How do you apply “-zapwallettxes” for multbit 0.5.15

I made a transaction a few months ago but the transaction is still not confirmed, the Bitcoins are debited from my account and the balance in my wallet is zero. Information on the transaction The ...
2
votes
0answers
136 views

Double spend a tx output already spent but unconfirmed because of low fee

In the protocol rules for validating transactions it says: Rule 9: For each input, if the referenced output exists in any other tx in the pool, reject this transaction.[5] I assume that when a ...
2
votes
1answer
188 views

Manually checking for credited bitcoins

If I have the bitcoin address, the private key and a transaction ID from Bitcoin (regtest mode) in shell variables, what Python code do I need to run to claim the Bitcoins are indeed intended for this ...
2
votes
0answers
55 views

Banned bitcoinj node ip

I've created many raw transactions today and after an hour I found out that my bitcoin node is only connected to 3 peers (testnet). Is it possible that my node has been banned due to wrong or double ...
2
votes
0answers
38 views

What bitcoin clients provide GUI support for “BIP 125 Opt-in Full Replace-by-Fee Signaling”?

What bitcoin clients provide GUI support for "BIP 125 Opt-in Full Replace-by-Fee Signaling"? If there are no GUI bitcoin clients that support it are there supported command line bitcoin clients?
2
votes
0answers
139 views

Specific fee in transaction

Is there any possible way to send transaction with specific fee (not fee per kb) from wallet in bitcoinj? Where should I look to find a solution :)? My code: Address address = Address.fromBase58(...
2
votes
0answers
165 views

I need to send a message to the person resposible for a specific wallet

Using Multibit, we sent btc to an incorrect wallet address. We have sent a small amount of BTC to this address before, so it is listed in our wallet's Transaction list, but is unfortunately not ...
2
votes
0answers
305 views

Bitcoin sending transaction error

I recently bought some Bitcoins(around 0.5) and sent some to a friend. He got them direct. Today I wanted to transfer some more but it didn't work. Every transaction was an error, besides one very ...
2
votes
0answers
328 views

Creation of <20-byte hash of redeem Script> in a P2SH Transaction

According to this example: Redeem Script: 2 PubKey1 PubKey2 PubKey3 PubKey4 PubKey5 5 OP_CHECKMULTISIG Locking Script: OP_HASH160 <20-byte hash of redeem script> OP_EQUAL Unlocking Script: Sig1 ...
2
votes
0answers
108 views

Include Bitcoin-Transaction within database-Transaction

I am writing a system that uses the Bitcoin Core JSON-RPC API. Use case: user wants to withdraw some BTC to his BTC address. My application handles this request by the following logic: Check if ...
2
votes
1answer
558 views

How to sign a transaction using BitcoinJ

I am having problem signing the transaction using BitcoinJ library without the Wallet instance, I only have the Transaction class instance and the ECKey in order to sign the transaction. Is there a ...
2
votes
0answers
563 views

Coinbase lost my transaction from Bitstamp

I'm moving my coins out of Bitstamp I was looking for another exchange. I have sent 0.00007 BTC to just test the transaction. I got the address where I want to send coins to from coinbase.com/...
2
votes
0answers
129 views

Need to do 400 transactions, how do I get them confirmed?

I tried to send 0.00000001 btc to about 7 addresses, and paid the 0.0001 fee. But it seems like this transaction won't go through ever. Those coins are lost :(. I have about 400 sponsors, and they ...
2
votes
1answer
350 views

Broadcast a Transaction

I have a: Wallet public/private key pair with X BTC Wallet Address I want to sent Y BTC to I'm developing an app in NodeJS and trying to initiate payments automatically. I'm very confused how I'm ...
2
votes
0answers
729 views

Missing transactions with blockchain.info

All of the quick send transfers I've made on blockchain.info do not show up in my blockchain.info history. Furthermore, a person I have made a few quick send transaction with is claiming 0 ...
2
votes
1answer
495 views

What is the required input for python-bitcoinlib getrawtransaction command?

I am running a bitcoin node on my machine, fully synced with RPC commands enabled, rpc server live and txindex=1. In the command-line I can run the following RPC call and obtain the information ...
2
votes
1answer
177 views

Is there any party who is archiving all transactions that have been broadcast?

There is a person claiming that Blockchain.info/wallet sent a transaction but for whatever reason that transaction never got included in a block. If the transaction is valid today but perhaps just ...
1
vote
1answer
10 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 ...
1
vote
0answers
37 views

How can I check my transaction signature is correct?

I have tried recreating the exact transaction from "Appendix B: Funding Transaction Test Vectors" from BOLT 3 from the Lightning RFCs. My transaction looks exactly the same when parsed, except my ...
1
vote
1answer
21 views

Multi-destination transaction from paper wallet

As far as I know, I can make a transaction to a single destination by sweeping/importing private key. How can I make a transaction to multiple destinations?
1
vote
0answers
56 views

How to send & receive bitcoin using bitcoinjs-lib?

First I create HD Wallet using BIP32 using mnemonics. Now I want to generate new child addresses with private key using xpub & xpriv for every receive. Then for example, I received BTC in 2 ...
1
vote
0answers
69 views

demonstrate tracking some bitcoin transactions with a program like an explorer

Recently I started to read BITCOIN protocol and it's events when a transaction created. I want to create a program a bitcoin explorer. as you know probably, Each non-coinbase input spends an outpoint ...
1
vote
1answer
67 views

How to combine separately signed inputs from different users?

With two separate signed raw transactions from two users, how would one go about 'batching' these manually (combining the inputs and outputs into a single transaction)? Is this a viable solution for ...
1
vote
0answers
51 views

Stripped segwit data

I have two client Bitcoin, 0.17.0 and 0.12.0 and I want to see the difference between the same transaction. 0.17 has segwit, 0.12 doesn't have. If I do that RPC call in 0.17.0 /bin/bitcoin-cli -...
1
vote
0answers
27 views

How do I know when a transaction never confirms and is removed from the mempool

I created a light wallet which can receive and send transactions. It works fine in normal situation. My (first) question is what are the situations where things can go wrong ? Is there a reference ...
1
vote
0answers
31 views

Verify bitcoin address and amount from sign transaction

Is there a way i can extract the fromAddress, toAddress, amount and fees from a bitcoin sign transaction? eg: SignTransactionValue = signAddress(fromAddress, toAddress, amount, fees, privateKey) How ...
1
vote
0answers
29 views

Transaction broadcast mechanism

After initiation of transaction, transaction will remain in the memory pool of all peered nodes. How Transaction reach to the memory pool after receiving by the node? Do transaction broadcast to all ...
1
vote
1answer
173 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 ...