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.
310
questions with no upvoted or accepted answers
6
votes
0answers
307 views
How many bitcoin transactions can be verified per second on commodity hardware in 2020?
I am trying to figure out how many Bitcoin transactions could be verified per second.
Am I correct that signature verification is more expensive than computing Merkletrees and hashes and therefore ...
4
votes
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?
4
votes
1answer
1k 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 ...
4
votes
0answers
394 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
37 views
What are the malleability threat vectors when passing PSBTs to other actors?
If I am passing a PSBT (Partially Signed Bitcoin Transaction) between multiple people, and I pass on my signature for my UTXOs for given inputs, can someone take advantage of malleability and cheat me ...
3
votes
2answers
174 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 ...
3
votes
1answer
5k 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
...
3
votes
0answers
987 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
0answers
4k 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
1k 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
92 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
0answers
390 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
319 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
3answers
501 views
Minimum for sending BTC from BTC wallet
Is there a particular minimal amount of Bitcoin one is allowed to send under which it is too low to be confirmed as a valid transaction from the bitcoin wallet?
For instance, I have got approx. 85 ...
2
votes
0answers
27 views
When did Bitcoin start to allow more than 2 transaction outputs?
The original Bitcoin paper specifies that:
Combining and Splitting Value
(...) Normally there will be either a single input from a larger
previous transaction or multiple inputs combining smaller ...
2
votes
0answers
86 views
Sending a transaction from a Trezor One with outdated firmware and lost recovery seed
I have a Trezor One with firmware 1.4.2 and I have lost the recovery seed. I'd like to send a transaction from the device to another address that I control. However, because of its outdated firmware, ...
2
votes
0answers
34 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 ...
2
votes
2answers
220 views
How to exchange small amount of bitcoin?
Hi I have a little question could you tell which is the best method to exchange 2.27mBTC (18€) in euros or USD?
I registered on coinmama but the minimum for them is 50€ is there any other exchange ...
2
votes
0answers
84 views
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 ...
2
votes
0answers
195 views
Getting Error "Unable to sign input, invalid stack size (possibly missing key)"
I have created a key from using coinstring, and then imported it into my wallet. Then I ran:
bitcoin-cli signrawtransactionwithkey "$rawtxhex" "[\"$mykey$\"]"
But it results in:
Unable to sign ...
2
votes
2answers
142 views
What is a mechanism of providing Merkle Path?
In the Bitcoin, SPV node can query that its transaction is included specific block to full node that provides merkle path which has super fast calculation.
In terms of full nodes, they have full-...
2
votes
0answers
240 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 ...
2
votes
0answers
34 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
287 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
252 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
0answers
427 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
207 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
901 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
0answers
88 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
84 views
Is a replay-attack-proof soft fork possible?
Say there is a soft-fork. A is the chain that implements it, B is the chain that has a transaction that's valid pre-soft-fork, but invalid post-soft-fork, so it's following the old rules. We know that ...
2
votes
1answer
277 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
58 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
46 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
145 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
258 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
410 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
397 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
116 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
646 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
599 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
131 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
0answers
444 views
CoinBase Callback URL in Java
I using CoinBase API for transactions in a game. I assign a callback URL with the address so as to get instant notification on payment transactions. the URL is called but it is not sending any data. ...
2
votes
0answers
743 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
865 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
221 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
0answers
38 views
Implementing a trustless English auction on Bitcoin
Is it possible to implement an English-auction type mechanic on Bitcoin (trustlessly)?
I have tried smart contract implementations in other blockchains.
For instance, one straight forward ...
1
vote
0answers
19 views
Prepare transaction with multiple recipient
Do you think it is possible programmatically prepare a Bitcoin transaction that has multiple recipient to send the amount to?
Do you think I can show this trasaction in QR code, so payer can scan it ...
1
vote
1answer
131 views
bitcoin payment has big fees
I am using the bitcoin-rpc and everytime i create an invoice from a PHP script, i create a new address. All is ok, i get the money after, i have a script that checks number of confirmations, then when ...
1
vote
1answer
53 views
What is the best way to send money to a friend overseas using a Bitcoin ATM?
I have a close friend living overseas who I wanted to send money to. They suggested using a Bitcoin ATM instead of other methods. What is the suggested best way or method for me to use this method?
