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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.

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1 vote
0 answers
21 views

Blockchain app won't let me send bitcoin because it says there's nothing in the wallet, yet I have $40 in there [closed]

Like the title says, it won't let me send any bitcoin through the "Send" function of the blockchain app, and only prompts me with the "Buy Crypto" button, but I have $40 in the ...
1 vote
1 answer
33 views

Order of Signatures in Multisig-Scheme

3 Entities (A/B/C) create a collaborative Multisig Wallet (e.g. 2-of-3). A creates an unsigned TX and shares it with B/C. They (B/C) sign and broadcast. Looking at the TX on the network, can A make ...
0 votes
1 answer
24 views

Searching The Blockchain Based on Transaction Amount and/or Date

I know there are a lot of services to look up if I have the wallet address or transaction ID. But, let's say I have no idea who the sender or receiver were nor a transaction ID but I know ...
1 vote
1 answer
530 views

How to monitor Bitcoin address for new transactions?

I have some generated Bitcoin addresses which I want to monitor for newly received transactions, I have a full node but I don't want to import those addresses to the node's wallet. I don't want to use ...
1 vote
1 answer
62 views

How much on-chain activity is to and from exchanges?

Are there any data services which provide metrics that show how much of the transactions on the Bitcoin blockchain are to and from exchanges?
0 votes
1 answer
135 views

How to check if one transactions is from the same wallet (public key) as a previous one

I wonder how to figure out whether one Bitcoin transaction is from the same wallet (public key) as any previous transaction in order to proof the ownership of a wallet.
0 votes
1 answer
41 views

Repeating identical outputs in bitcoin transaction

I am building a script that is indexing all bitcoin transactions in real time with all their details etc. But I am looking here at this transaction - https://www.blockchain.com/btc/tx/...
0 votes
0 answers
4 views

Can you give me an example of a P2MS tx at testnet?

I am checking on the test net before applying current update. I'd like to check P2MS, which is "bare multisig," and I'd like to know the testnet transactionID of this. Or is there an ...
0 votes
1 answer
32 views

Isn't the power of blockchain coming from decentralization instead of immutability of blocks?

I've only started exploring the working of blockchain. So what I've gained from guides on Google has me into thinking that what makes blockchain records resilient to corruption is distributed storage, ...
0 votes
1 answer
24 views

Do wallet companies send user's transactions to their own "central" bitcoin nodes?

Do external wallets companies such as muun, bluewallet, or greenwallet send user's TXs to some "centralized" data center where they own some nodes to broadcast the TX to the blockchain? If ...
1 vote
1 answer
77 views

Why is the output address a list in RPC/console?

Vout contains a list of addresses, which I noticed to be always with size = 1, if it exists. The following is an example from Bitcoin Testnet: { "value": 0.91840581, "n": 2, "...
3 votes
2 answers
724 views

Is it common for mining effort to be lost?

If many parties are mining to try to establish a block, and one succeeds, does that mean the efforts of the other miners (whose blocks have at least some common transactions) are lost; the time and ...
0 votes
0 answers
14 views

How to verify Bitcoin transaction against a specific user? [duplicate]

I am working on project .i have a functionality where user can submit bitcoin to my wallet .and after submitting bitcoin a payment page will open and user will fill payment details e.g his/her bitcoin ...
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0 votes
1 answer
71 views

is wallet vulnerable when unlocked for transactions?

is wallet vulnerable when unlocked for transactions?.I recovered a wallet some time ago and all is good.passphrase key all looks good.But a question came to my mind about the moment we make a ...
2 votes
1 answer
663 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
2 answers
399 views

There are a lot of 100 input transactions in some blocks, what's the reason?

In block 736302, we can see a lot of 100 input transactions. And this can be seen also in 736567, 736299 and so on. Is this only a coincidence?
1 vote
1 answer
170 views

Following SegWit implementation, is BIP-146 signalling and implementation still on the docket?

Is BIP 146, which defines using the low S value, still on the docket to be signalled and implemented given that SegWit fixed the txid malleability issue by moving the witness outside the transaction? ...
0 votes
0 answers
16 views

Create transaction without importing wallet using python bitcoinlib

I am trying to find a way to send bitcoins from one address to another, having only private key, without importing any wallets, just simply get txins, create a transaction and send it to some address. ...
0 votes
1 answer
42 views

Does every single node in the blockchain validate the transactions in the mempool?

I have read several responses to various questions SE. Some responses partially respond to the question so I was hoping to get your help to bridge my gaps in understanding. Does every single node on ...
0 votes
1 answer
49 views

What Are The Parts Of A Bitcoin Transaction In SegWit Format?

I know that pre-segwit transactions looked like the following (This is the hash of the transaction in block 170 - the 10000 bitcoin pizza exchange): ...
-1 votes
1 answer
18 views

Hashage invalide

Après une demande de retrait de btc sur mon adresse de portefeuille L adresse de hashage n'est pas valide. Je n'ai pas reçu les btc. Que se passe t' il quand le hash n'est pas valide? Google ...
1 vote
1 answer
23 views

How does the block searching by txid works?

Is that the process will go through all the blocks and find the block which contains the txid or there's an index table for all transactions?
0 votes
1 answer
40 views

I made a withdraw from my crypto wallet to extern wallet. After few days they haven’t got the transaction

I have triple checked address, it is the right one. I used BTC chain. My crypto.com says that transaction was complete. What is wrong? Why they haven’t got the transaction?
1 vote
0 answers
34 views

Bitcoin listreceivedbyaddress as REST API

I am currently looking for a REST API service which will allow me to implement a super simple deposit system. Currently I am generating bitcoin addresses (mainnet + testnet) via Python. In addition to ...
58 votes
6 answers
33k views

What is meant by Bitcoin dust?

I've seen the term "dust" used to describe small transactions that might be considered as spam by the Bitcoin network. Is there is a generally accepted definition of this term?
1 vote
1 answer
24 views

Spending UTXO recieved in same transaction

Is it possible to spend UTXOs received in same transaction? Or we need to issue a new transaction for spend those UTXOs?
9 votes
1 answer
467 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 ...
1 vote
1 answer
99 views

How can I get the destination address from raw transaction data?

I am writing a program that reads Bitcoin transactions from .blk files and performs some analysis on them. I would like to get the transaction destination addresses (like in some transaction explorers:...
0 votes
1 answer
56 views

In what format does a block store the transaction data?

Does it store the raw transaction data literally like (excuse the formatting inaccuracies): 0x24134i59435ej3...9 sends 0x9wri03vw3sdfsd...i 26.00000023423 Bitcoin. Or is it stored differently?
0 votes
1 answer
79 views

Are there any Bitcoin block explorers still around that log First Seen by node data?

Title.. Hoping to find out when a historical tx went into the mempool. I'm aware this is transient data and not in the blockchain. However i'm pretty sure I remember in the old days explorers used ...
1 vote
1 answer
24 views

Open/Close LN tx size

What is the average size of a on chain closing LN transaction ? It seems to be 140vb but I don't find any source.
1 vote
2 answers
67 views

Is there a way to broadcast a bitcoin transaction without internet access?

I am trying to understand if there are ways to do this.
0 votes
1 answer
2k views

How to send Bitcoin in the Testnet?

I'm using this library: https://github.com/lian/bitcoin-ruby And here's my code: require 'open-uri' require 'net/http' require 'net/https' require 'json' require 'bitcoin' Bitcoin.network = :...
3 votes
2 answers
214 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 ...
2 votes
1 answer
298 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 ...
0 votes
2 answers
43 views

how to know the public address of a wallet that sent me funds (bitcoins), using python

I have a website that will show a QR code of my bitcoin wallet (public key), I will ask the client to deposit bitcoins there, I want to know which wallet (public key) was the one that deposited this ...
1 vote
3 answers
2k views

help can I recover ltc sent to a btc address

Im super new like a lot of people. I have a nano s ledger and I attetpted to send ltc from coinbase to the ledger only to realize I used the btc address on my ledger. Is this recoverable?
1 vote
1 answer
274 views

Invalid transaction. Error: TX decode failed. Make sure the tx has at least one input

I'm using bitcoinlib for python to create a transaction and send it but I'm getting the following error: Funds not sent, exception error: Error connecting to blockchair on url https://api.blockchair....
0 votes
1 answer
52 views

unrecognized output wallet when using Electrum to send bitcoin

help me understand this transaction - https://www.blockchain.com/ro/btc/tx/1318a3e54cff78fdd8f6b54e6fe5115072586091788c9bfa08ca82d83e4bc276 . Never sent bitcoin from hardware / hot wallet before so I ...
4 votes
1 answer
575 views

How did testnet transaction b6714e05dd014cc92de09271886e62d85e7d41dd44fad417c520eb51d57f94c0 validate?

Testnet transaction c474c67cabc13f74c65e7cf503db971d5ba176794bff7de36f46d51ca675cf3a locked 0.0005BTC with a simple math script: OP_2DUP OP_ADD 5102 OP_EQUALVERIFY OP_SUB 230d OP_EQUAL Transaction ...
-1 votes
0 answers
34 views

why to I have to verify/turnover my Bitcoin wallet to receive funds [duplicate]

Update: Transaction has been suspended. Your transaction could not be completed due to the lack of turnover extension on recipient wallet. Be careful! Turnover of your wallet is not fully verified/...
0 votes
2 answers
9k views

How do I know how many confirmations a transaction has?

This is my first transaction and it's been since yesterday that I sent it. The website said wait for 4 confirmations then check email, but I haven't gotten any email so I don't know if it's gone ...
1 vote
3 answers
457 views

What is the purpose of the script like RETURN PUSHDATA(36)(...)

The example is in here: https://www.blockchain.com/btc/tx/63910fdfa84db96bd1f28fead4c32f97388d5368c10059d035aac3c5f72fcdc0 Actually, there are two outputs DUP HASH160 PUSHDATA(20)[...
0 votes
1 answer
45 views

Can funds be recovered if sent to the same address twice [closed]

I signed up with Swapnex.io and sent an initial deposit of USDT TRC20 to test the transaction which went through quickly. Thereafter I sent a much larger sum, however I did not realize that the ...
0 votes
1 answer
115 views

Where can I get a visual example of the entire bitcoin network starting from physical network to the overlay network

*Note I am not a technical person so excuse any misunderstandings on my part here. I am looking to get a sense of how the entire system looks like as a whole starting from the physical hardware (such ...
0 votes
1 answer
38 views

An unexpected transaction removed money from my wallet

I sent a transaction from Kraken to my wallet Exodus. All went smooth and the transaction was confirmed in my wallet yesterday around 12 AM. This is the ID: ...
0 votes
2 answers
73 views

Why does the longest chain rule make the most sense to deter double spending?

If there is double spending occuring, I don't understand why the longest chain rule would decrease the likelihood for only one transaction to be confirmed. Can someone explain step by step why this ...
1 vote
1 answer
173 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
2 answers
75 views

Curiosity, Minimal transaction accepted as valid? (zero input/ zero output)

$ bitcoin-cli decoderawtransaction 00000000000000000000 { "txid": "f702453dd03b0f055e5437d76128141803984fb10acb85fc3b2184fae2f3fa78", "hash": "...
-3 votes
2 answers
509 views

How to derive the Private key when the two the nonces are k and k*2

Is the same private key using k and k*2 respectively in two different signatures vulnerable? If yes How to calculate the key in this case Here is an example, Both signatures are valid and the nonce of ...

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