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.
286
questions with no upvoted or accepted answers
9
votes
1answer
159 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
356 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
1answer
73 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,...
3
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
...
3
votes
0answers
831 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
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 ...
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
956 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
2k 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
370 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
313 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
0answers
24 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
246 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
156 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
320 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
375 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
177 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
898 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
80 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
81 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
0answers
141 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
192 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
56 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
40 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
140 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
176 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
315 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
342 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
591 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
354 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
733 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
558 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
181 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
15 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:
...
1
vote
0answers
19 views
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 "...
1
vote
0answers
41 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 ...
1
vote
1answer
17 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
39 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
25 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
2answers
73 views
Wallet forensic
Someone who scammed me used this wallet to receive the BTC 12fmomENb5SSxR54Bitua71CZrc4oVQtmB he hasn't moved them from there since July 31st I'm trying to figure it if that wallet belong to any ...
1
vote
0answers
91 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
82 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
60 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 -...
