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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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2answers
31 views

Transaction order in the blockchain

What is the difference between segregated witness (segwit) and canonical transaction ordering (CTOR) ?
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1answer
40 views

Is there a way I can reach the owner of the wallet address

I mistakenly sent some bitcoins to a wrong address. The mistake was from the wallet address I was given. An extra letter was added, making the address 35 digits. Is there a way I can reach the owner ...
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0answers
25 views

Transaction confirmed but address balance not get updated ? [litecoin Testnet]

I have used litecoin testnet faucet for a transaction of 10 litecoin. the transaction was successful and I got a txid:768f9f7a913e5682e4b5248f21b113e84e00049aea89c08f32f3b9ad7f3d755d. I checked the ...
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3answers
30 views

Find specific transaction in merkel's tree

We know the merkel tree is branchs of transaction hash so that root of tree is hash that show in block header. If i want to find a specific transaction, how i can?
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2answers
87 views

Bitcoin core wallet transactions and synchronisation

I have Bitcoin Core wallet. I wanted to know if each transaction I need sync the wallet? (I have a new business that accept bitcoin and I must to save each transaction)
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1answer
44 views

SPV clients querying the full node

Is there a way currently where an SPV client can send a TxID to a full node which is present in the UTXO set of the full node and have the full node not scan its entire blockchain to fetch the ...
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0answers
44 views

Status: 0/unconfirmed, in memory pool. Cnee's address expired and reject this transaction [closed]

Internet connection was lost during transaction. Bitcoins gone, but no chance to confirm transaction at cnee side. So after some hours cnee's address expired and reject this trnsctn. Now, as 24H ...
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2answers
20 views

What happens when the verification of a manipulated transaction fail?

If a malicious miner changes the amount in a given transaction, the hash value of the block changes. Thus, he has to find the required hash value again in that block. Let's say he successfully found ...
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1answer
71 views

find a CTransaction from a prevout in Bitcoin source code

I'm trying to come up with this function: CTransaction getTxFromPrevout(COutPoint prevo); The idea being... when a new transaction is about to be validated, it will go through all of it's tx.vin[i]....
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0answers
24 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 ...
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1answer
40 views

Bitcoin Tranaction can one trace in coming transaction to receiving wallet

I know you can trace a bitcoin trans,from where it left from and where it is on the block chain ... my question, "i was reading".... is it possible to trace a INCOMING transactions to ones receiving ...
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1answer
24 views

Number of main chain in a blockchain network

I just have a very basic doubt. Suppose there's a public blockchain network like Bitcoin comprising several nodes. Would it be possible that this network consists of multiple mainchains??I am not ...
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1answer
60 views

Segwit txin. Witness data association

I am trying to learn more about the bitcoin protocol and I am writing some python software to make a light wallet. I have advanced quite far and I have come across something that I dont really ...
0
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1answer
39 views

How can I avoid re-using a Bitcoin address more than once?

I have a fundamental confusion regarding Bitcoin addresses. Apparently, addresses are only intended to be used once for security and privacy reasons (see here, for example). If I think of addresses as ...
0
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1answer
21 views

how to prevent losses after a hard or soft fork

i learned about hard and soft forks from this question; now i have a basic understanding about forks; but the answers of that question did not say what happens to transactions on the stale chain; if i ...
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1answer
25 views

Transaction is not Picked

I am new to block chain technology. I am struggling to understand below concepts: What if my transaction is not picked by the miners and what is the criteria for miners to pick? How can I rely on ...
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3answers
128 views

Urgently need advise for unconfirmed transaction [duplicate]

I have a transaction as below which had not confirmed for more than 2 days. May I know what is the problem or what I can I do to speed it up? https://www.blockchain.com/btc/tx/...
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1answer
21 views

Transaction records?

Can you track your payment if you do a transaction from person to person for a house rental if the seller doesn't follow through with their end of the deal and doesn't send the keys can you get your ...
0
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1answer
42 views

Unknown btc transaction

Could someone please explain what is this second transaction from the wallet 34UuFs8BtnbeJtdM9p4NBCHiP8MaD4f86n ? https://www.blockchain.com/btc/address/34UuFs8BtnbeJtdM9p4NBCHiP8MaD4f86n?filter=6 I ...
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2answers
51 views

Ttransaction validation in the bitcoin blockchain

I am confused. What is exactly a validation of transaction in the bitcoin block chain? Please correct me if I am wrong. I know we need 6 minner to validate our transaction and those 6 minner check ...
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0answers
47 views

What does “Estimated BTC Transacted” mean? [duplicate]

I view a sample transaction, would you please see the sample image? It's very clearly that Total Input is 0.1B, Total Output is 0.0995, and Fees is 0.0005 BTC; 0.1=0.0995+0.0005 Estimated BTC ...
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2answers
60 views

Checking signature only vs. P2PKH

It is clear to me why it's potentially unsafe to only use a check on == in scriptPubKey. For one, not verifying a signature in the redeem script means that someone could impersonate the redeemer. From ...
5
votes
1answer
87 views

How does copying main stack prevent malformed unlocking scripts vulnerabilities?

https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch06.asciidoc In the original bitcoin client, the unlocking and locking scripts were concatenated and executed in sequence. For security ...
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1answer
46 views

Have there been any examples of people manipulating transactions in a way that waiting for more than 1 confirmation would avoid?

A lot of bitcoin exchanges require some minimum amount of confirmations before they consider money deposited. Is there any evidence that this actually does anything? Has someone ever before ...
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2answers
52 views

How to cheaply melt many micro UTXOs?

I know this was probably brought up before but I cannot find any good resources on some potential, at least theoretical way of achieving this. So basically I have a lot of UTXOs whose value is ...
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2answers
67 views

Bitcoind does not like ECDSA (r, s) pair produced by OpenSSL

I am writing transactions manually and have stumbled across a rather bizarre situation. Only one in a few of the transactions I broadcast to bitcoind is accepted, otherwise I get a REJECT_NONSTANDARD ...
2
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1answer
35 views

BIP 44 is scanning external chain really enough?

When reading the BIP 44 proposal I stumbled upon this paragraph about address discovery: We scan just the external chains, because internal chains receive only coins that come from the associated ...
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1answer
32 views

gettransaction cannot get address where it send from

Hi i have test few time with gettransaction method, it seem only show full detail about transaction when send inside node. But if i send from another address outside my node, gettransaction only show ...
0
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1answer
39 views

Can i use one pair public and private key for all transactions?

Can I use one pair public and private key for all transactions, digital signatures and wallet addresses? In the other hand, I have a private key and want to sign all transactions and have a public key ...
0
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1answer
53 views

Watch only address not update balance

After adding watch only address to my bitcoin core and perform some transaction that make my watch only address balance to 0, but when i run getbalance and listaccount with watch only is true, my ...
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1answer
44 views

Create transaction with bitcoin core

Currently i'm working with bitcoin-qt for a while and now i have some issue that i wanna ask. -Is there a way to create transaction then submit it to network from wallet that NOT inside this bitcoin ...
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1answer
55 views

How to send small amount of BTC to thousands of addresses? [closed]

I'd like to create a pool of addresses using Blockchain.com API. But because of the gap limit on unused addresses I want to transfer minimal amount (ideally 1 Satoshi) and without any fees. What's the ...
0
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1answer
53 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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0answers
22 views

Need help on building transaction with go(lang)

i try to send a transaction to bitcoin testnet for about 3 days now but i can't success... Probably someone can help and give me some example code. What i try to do: I'm writing some payment ...
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0answers
13 views

Transfer amount on blockchain larger than was sent from wallet [duplicate]

I sent some BTC from a hardware wallet last year. The wallet shows a sent amount of 0.09302 BTC but when I look at the transaction id on blockchain.com it shows two amounts. 0.282 BTC unspent and 0....
1
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1answer
25 views

what questions should i ask when deposing a client about hidden bitcoins

I am deposing a client's spouse about bitcoins they have mined since 2013. What relevant questions should I ask to ascertain number of coins mined and transactions concerning those coins, such as ...
0
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1answer
46 views

How can someone get my private data (such as email, name, IP …) from bitcoin transaction?

I am curious about privacy of bitcoin transactions. I heard that if you are good enough at hacking, you can get private data from bitcoin transaction, or associate someone to transaction. How is it ...
2
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1answer
60 views

Why are some public keys prefixed with 0x00?

ECDSA public keys seem to always start with 0x02/0x03/0x04/0x05 1, followed by either 32 bytes of 64 bytes. However, I encounter some public keys prefixed with 0x00. For example, the source output ...
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0answers
26 views

How can I calculate an address’s balance with “total recieved”?

I want to calculate balances of my customers with a process , total received(I get it via api provided by a Blockchain explorer)-total_sent(I store transactions my customers make) but as you know, ...
2
votes
1answer
17 views

Can miner pay transaction fee with coinbase (if maturity is disabled)?

If I understand correctly, the first transaction in a block may collect transaction fees (difference between inputs and outputs) from the following transactions in the same block; and subsequent ...
2
votes
1answer
58 views

Upper bound on the Bitcoin transaction size [duplicate]

Assume that I want to store some arbitrary data on the Bitcoin blockchain via a single transaction. Question: Is there any upper bound on the size of data I want to send via a single transaction? -...
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1answer
60 views

How to send bitcoin programatically using API? Bitcoin Transaction. (Without Setting Node) [closed]

Want to send BTC from one address to another address without using JSON-RPC. Followed and used: https://bitcore.io/api/ https://www.npmjs.com/package/bitcoin-transaction/v/1.1.1 2nd:bitcoin-...
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1answer
38 views

MultiSig address transaction high fee with no change

I was testing MultiSig transaction on testnet with raw transactions. I sent a transaction of 0.0012 from MultiSig 2-2 to a bitcoin address: https://live.blockcypher.com/btc-testnet/tx/...
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2answers
40 views

Adding Comment on Bitcoin Transaction (After Sent)

Is it possible to add a comment to a bitcoin transaction after it has been sent?
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0answers
17 views

Moving 'Sent' Transaction from Default Account

I would like to move a sent transaction from the default account to another account held on the same wallet. I am using version 0.16 so I still have the depreciated accounts functionality. I'm not ...
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2answers
50 views

Bitcoin MultiSig balance not showing under listaccounts

I added 2-2 MultiSig address into wallet via bitcoin cli (Testnet) addmultisigaddress <'["key","key"]'> [account] 1 key of current wallet and other public key from different node wallet. ...
2
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1answer
58 views

Where is the pubkey for segwit inputs?

Normally when you spend an input, you reveal your public key and signature so that ECVERIFY can be done. I look at segwit raw transactions and cannot find the public key inside them, where do they go?...
2
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1answer
60 views

Why Bitcoin uses UTXO model? [duplicate]

I know what it means. But I can't understand why Bitcoin decided to make such a model, where you have no balance, only unspent transaction outputs. And isn't the same thing as having the balance? I ...
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1answer
88 views

RPC command sendfrom is giving Transaction too large error

I made discord bot for fun with tips, soak and rains of altcoin. When I try to send large amount through the same bot. It is giving me "Transaction too large" error. I found the reason here: ...
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1answer
31 views

What is the relationship of ckeypool and ckeystore?

In the source, there are ckeypool and skeystore. I wonder what is the relationship of them and why need both.