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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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1answer
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Can you create empty Bitcoin transactions?

Is it possible to create Bitcoin transactions of zero value, or in other words sending 0 bitcoin to an address?
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1answer
19 views

Can you send a Bitcoin transaction to a Bitcoin address that does not exist?

Say I arbitrarily pick an address "abcdefg" (for example's sake), which does not exist in the network; no one "owns" the address. What happens when I attempt to make a transaction to this address? ...
0
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1answer
16 views

Can you create multiple transactions per block in chronological order?

Say I buy a coffee mug, a box of tea bags, and a half liter of honey in the span of five minutes using Bitcoin. Since the Bitcoin network creates a block every ten minutes or so, these transactions ...
0
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1answer
15 views

are all nodes validate each transaction added in a new block?

are all nodes validate each transaction added in a new block? Because what if someone said I have completed block and added invalid transaction? and if others node just accepts a block without ...
0
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1answer
15 views

Can you create Bitcoin transactions from one address to the same address?

So if I wanted to send 1 satoshi from a Bitcoin address to the same address... Would this be possible? Would the transaction be recorded on the blockchain?
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0answers
7 views

Is there a service that allow us to wire moransney using bitcoin?

I got bitcoin. My traffic suppliers accept bank wire. We're talking about $20k at a time stuff. Is there a service that allows me to just pay with bitcoin and get someone else to transfer fund there.
0
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1answer
16 views

If i pay 0.001 to cloud mining site such az minezone.io or bitbase.club or 99quick.cloud

If i pay 0.001 to cloud mining site such az minezone.io or bitbase.club or 99quick.cloud, they give my balance or no
0
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0answers
9 views

Copay - I haven't received my full amount of bitcoin (confirming)

It's been two days that I have received a transaction but the full amount has not been confirmed yet. Any idea on why this is happening? All it says under confirming is "The amount of bitcoin stored ...
0
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1answer
16 views

how to achieve transaction info of all the blocks

I use https://chain.api.btc.com/v3/block/date/20151215 to achieve list of blocks and also use https://chain.api.btc.com/v3/tx/0eab89a271380b09987bcee5258fca91f28df4dadcedf892658b9bc261050d96?verbose=3 ...
3
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1answer
41 views

What exactly is hashed and signed in a segwit transaction

I have an unsigned raw segwit transaction on my regtest network: ...
0
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0answers
20 views

My whole Copay Wallet has passed to unconfirmed :/

Crazy thing with Copay: This is it, except that my last transaction is 11$ not 600!! If someone know the bug and how to correct it... I'm all ears!
0
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0answers
18 views

how to spend pay-to-pubkey transaction

Im trying to create and sign a transaction manually. The point is, I choose an unspent output transaction which is of type pay-to-pubkey, so I dont know how to sign correctly. Below is the function I ...
0
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0answers
9 views

Why does the Lightning RFC require that HTLC ouputs go through succes and timeout transactions?

BOLT 3 describes HTLC output scripts: (https://github.com/lightningnetwork/lightning-rfc/blob/master/03-transactions.md#offered-htlc-outputs) The payment going to the owner of each commitment ...
0
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1answer
25 views

Instant BTC to USD transfer? [closed]

is there a way to have BTC sent from somewhere to my wallet and then that amount is immediately transferred to USD? I know that Coinbase offered this once but they have since removed that feature. I ...
0
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0answers
10 views

bitcoin from one exchange sent to bitcoin cash wallet of another

I sent bitcoin from an exchange to bitcoin cash wallet of other exchange. the second exchange indicates the bitcoin will not be credited. Ive got the address where the bitcoin is sitting from ...
0
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3answers
41 views

Reject or refuse to relay a valid transaction

Under the Bitcoin protocol, how much control does a node have on how a transaction is dealt with once received? Can a node reject a valid transaction? Can a node refuse to relay a valid transaction to ...
1
vote
1answer
26 views

What the difference between SendToAddress and (CreateRawTransaction + SignRawTrasaction + SendRawTransacrion) RPC methods?

Can I create, sign and broadcast transaction using sendtoaddress RPC method? And what the between sendtoaddress and (createrawtransaction + signrawtransaction + sendrawtransaction) RPC methods?
0
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1answer
23 views

UTXO transaction consolidation?

As a relatively new user, I have only generated a handful of public addresses. Usually, to move to a newly discovered and preferred wallet. I’ve only recently learned that a single seed phrase can ...
0
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1answer
29 views

How miners validate each transaction?

There is a locking to each transaction? and sender also attach his digital signature to that transaction? When this transaction comes to miners then how they validate this transaction is valid. ...
0
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0answers
12 views

Mislaid funds [Bitcoin

Accidentally sent funds to a previously used address.This was from Binance who say cannot reverse transaction.Have spoken to Blockchain who cannot come up with an answer.Funds do show on Blockchain as ...
0
votes
2answers
39 views

Sent to wrong bitcoin address [duplicate]

Need help I sent my bitcoin cash at the atm to the wrong bitcoin HOW can I use this address to send to the address I want it the money on !!! NEED HELP NOW
0
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1answer
30 views

Double transaction on same hash (transaction ID) - Loosing 0.01 btc each time [duplicate]

Each time I send some btc to another bitcoin wallet there is a second transaction on the same transaction ID (hash) and each times i am loosing around 75 USD. You can see by yourself here; https://...
0
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3answers
49 views

How address balance is calculated?

It does not seem practical to scan every transaction on a block chain to determine the balance for an account. As the block chain grows this seems even more difficult and resource consuming. Perhaps ...
-1
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0answers
23 views

BlockChain Details [duplicate]

hi please answer these questions. is hashing at block level only..? who create the new block in blockchain.? if one block have 400 transaction and 2nd block have 300 transaction and 4th one have ...
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0answers
15 views

Creating lage blocks with multiple transactions in regtest mode?

I want to create blocks with multiple transactions in regtest mode. I want to test propagation with blocks of size 1-2 MB on the dash network. ./dash-cli -regtest -daemon -debug -port=8330 -rpcport=...
0
votes
2answers
22 views

How to build a bitcoin delegation server?

Actually, I know there are already have blockchain.info and its own api. But I want to build my own server which can provide basic API like: Generate a wallet by use password and username. User can ...
0
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1answer
24 views

How transaction manipulation handles in Blockchain?

I'm new to Blockchain and would like to understand few concepts in a detail. After reading about basics of Blockchain, one thing is unclear to me about tx. manipulation. For instance, A has some (i....
1
vote
2answers
45 views

Bitcoin core wallet - got 0 balance after transaction [duplicate]

I did a test lightning transaction by sending 0.00001 btc to some exchange with using bitcoin core 0.16 (downloaded from bitcoin.org and installed to dedicated pc) and... it took the rest balance of ...
0
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0answers
35 views

Generating Output Script from Bitcoin.js or other Javascript Library

I'm attempting to use the Ledger Wallet API to sign a multi-sig transaction. The API works as follows: var inputs = [ [ "71f97fa2a21486ecd99674a8ae068d92acd2e9db49c199473be39984e6cbe0f6", "00000000"...
0
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1answer
37 views

Raw transactions - SubtractFeeFromAmount flag

I'm currently working on a project (I'm a beginner in the world of cryptocurrencies) where we are using Raw Transactions, I want to know if in raw transactions there's a flag similar to ...
0
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0answers
22 views

Using CoreBitcoin in Swift to create raw transaction

I am new to coding, and only know swift, obj-C is still foreign to me. I have a functioning wallet but for now am relying on BlockCypher API to build a transaction which I do NOT want to do. Can ...
0
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0answers
22 views

Testnet address requested redeem script for sending transaction

I've received some testnet bitcoins to address Qhk53zCTTetiLaYeL2xM41QfjYJRxpQJF5. And tried to spent them with my usual python code that worked couple months ago on the main net: tx = conn....
3
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2answers
56 views

Does a Block contain the list of transactions? Or only the Merkle Tree?

I was wondering how a block encodes its set of transactions. I know a Merkle Tree is generated, and that it encodes a Hashed version of the transactions. But is the Merkle Tree included in the Block ...
1
vote
1answer
70 views

Can not decode transaction. Script was manually verified successfull

I can not decode transaction in Bitcoin-QT. The error is: TX decode failed (code -22). But blockexplorer site decode it. Then I try to send transaction from blockcypher.com site, and the error is: ...
0
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1answer
64 views

Tether USDT raw transaction unsigned

I'm not using omnicore by RPC calls, I dont want to put a server up and make those RPC calls, I want to make a simple transaction on the TetherUS(USDT) network, this is my code: const ...
1
vote
1answer
37 views

Segwit transaction in golang

I tried to create transaction which spends p2sh(p2wpkh) output: from wif I derived compressed pub key: "035476e55521c97cf0489e6c57893a99d67e84d306a69e6b6904f324c11b3cef8d". created witness program: "...
1
vote
1answer
11 views

Diffrent transactions in different block sync problem

Consider that miner A and B both try to solve its block, A's block has transactions (T1,T2), B's block has transactions (T1,T3). A solved its block then synced the block to B. Does B will discard its ...
0
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0answers
11 views

Mistakenly transfered btc to bch adress..plz help me [duplicate]

Paid the fees paid the cash and its confirmed but i gave them my BCH adress instead of BTC How can i see my money again? 😐
0
votes
1answer
17 views

I seem to have too many unspent outputs for my given balance. What am I missing?

I have an address on the testnet. I started out with 1.3 btc. I then sent 0.5 btc to another address. My balance is now 0.8. OK, that makes sense. I expect now to have one UTXO which was the 0.8 in ...
2
votes
1answer
34 views

How to buy Bitcoin in Iran [closed]

So I'm trying to buy Bitcoin in Iran and I want to use my Iranian Bank Account which unfortunately isn't accepted by PayPal or other online payment websites. So is there any way for me to buy Bitcoin(...
0
votes
1answer
36 views

How to verify if it's Segwit Transaction or not?

Segwit Usage chart example : https://p2sh.info/dashboard/db/segwit-usage?orgId=1 I Would like to verify by checking tx if it's Segwit Transaction or not. Is there any simple method to do this? ...
0
votes
2answers
64 views

Lost bitcoins?? Help! [closed]

I transferred bitcoins from my Coinbase account to 3FkenCiXpSLqD8L79intRNXUgjRoH9sjXa and now I cannot find it nor do I know how to get it back. Where is my bitcoins?? !
0
votes
1answer
39 views

Why I can't do a transaction by use sendtoaddress?

It's seems like this question, but it's no clear show. I have followed this step by step, and after finish last step which generate a block to confirm the transaction, I couldn't see my second address ...
4
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1answer
445 views

Schnorr vs ECDSA

I understand that Schnorr signatures provide an improvement on ECDSA in that they are a fixed 64 bytes instead of the longer ECDSA sig format, however, I don't see how this is an advantage over ECDSA ...
2
votes
1answer
71 views

How does the miner efficiently check that an address has required amount of data?

I've read this question. As the answer said, the miner "looks up the outputs that a transaction is spending from and makes sure that no other transaction has spent those outputs already." So the ...
0
votes
1answer
27 views

What good is to store all the transactions in the history

Bitcoin stores all the transactions that happened in the blockchain. Are really all the transactions needed? What good is it to have transactions ten years old stored. Isn't it a waste of discspace?
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3answers
45 views

Can I prioritize my transaction in Bitcoin?

How can I prioritize my transaction in Bitcoin? Does Bitcoin has any feature that can provide me fees required in case I want my transaction to be sent as high priority?
0
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1answer
20 views

Prioritizing BTC transactions using Bitcore APIs

I’m planning to give a feature in my application where a user can select type of priority (Fast, Average or Slow) for their transactions. How can I get fee required for each type? Does Bitcore API ...
1
vote
1answer
30 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, "...
0
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2answers
59 views

How to send bitcoins without paying or with extreme low fees and without having to proove my identity? [duplicate]

Of course, I know it’s no longer possible to get a transaction mined without a miner fee since 2011. It’s for sending from a single address to a single output address. But I have to split the sending ...