Linked Questions

1
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1answer
674 views

How to return change (utxo - inputs) to output address?

I've been learning to create bitcoin transactions for 3 weeks now, but keep paying the entire unspent_outputs - inputs as fees, even if the transacted amount was like 1/100 th of the outputs. How do I ...
2
votes
1answer
500 views

First bitcoin payment, sent X BTC, but transaction amount on blockchain.info shows as more than 2X?

I sent 0.01047 BTC through coinpayments.net using electrum. First I selected minimum fee option, then I went back and selected one level higher as the fee tier. My electrum wallet and blockexplorer....
-3
votes
2answers
477 views

Will I get my bitcoins have I been scammed?

Okay, I'm wondering what's going on here. I recently synced my wallet after ordering some bitcoins, but I never received them. The guy who sent them to me, sent me the blockchain address. So, I don't ...
0
votes
1answer
225 views

Am I being hacked, can I prevent it?

I have just sent bitcoins from one account of mine to another, and after I sent it I checked on blockchain.info to get updated about confirmation. There, I noticed something peculiar, it said that I ...
1
vote
1answer
322 views

what is the meaning of Segwit receiving address and segwit change address ..?

What is the meaning of different type used in bitgo api like bellow : Url : https://bitgo.github.io/bitgo-docs/?javascript#add-wallet m/0/0/0/0 (which is also the ID used to refer to a wallet in ...
0
votes
2answers
68 views

Can two or more transactions sent from the same address be mined in the same block in Bitcoin's blockchain?

Imagine a person Bob has 10 bitcoins in his wallet. He wants to send 5 bitcoins to Alice and another 5 bitcoins to Uncle Tom simultaneously (in separate transactions). Will both Bob's transactions be ...
1
vote
1answer
90 views

Why did the remaining money go to another address?

I'll try to be short. I gifted 1 BTC to a friend several months ago. She is a completely non-technical person. She tried to send a small fraction of that 1 BTC to her brother, and either she seriously ...
1
vote
1answer
69 views

How to read a transaction from a block? Who paid whom?

I'd like to know how to read a 'transaction', so if we take an example of this transaction (which comes from block #520156) it's easy to spot that 'th' paid 'U8' 0.005BTC and '9E' paid 'Y5' 0.013BTC. ...
1
vote
1answer
104 views

How would this double spend attack be prevented?

I know, that a user cannot create a fork in the chain. Also, it is said, that since every transaction is publicly announced, any attempt of double-spend on the same chain would be rejected as the ...
0
votes
1answer
91 views

Bitcoin Address Workflow on Spend Leftovers

I need to understand the correct Bitcoin address workflow for transactions. I created an address a while back with a common wallet and sent some coin there. The address is at segwit m/49'/0'/0'/0/0. I ...
1
vote
1answer
82 views

Limit the amount of change addresses

Is it possible to limit the amount of change addresses used by electrum (and other wallets)? I understand that change addresses will increase the level of privacy for the current user but it will ...
0
votes
1answer
105 views

Is there a way to get all addresses from an Wallet?

If I was to search the blockchain for address X, then I see that it has two inputs in a transaction, X and Y. I can safely assume that X and Y are owned by the same person? Now if I look at all of ...
0
votes
1answer
82 views

2 mBTC that was outputted as change in a transaction I just sent didn't come back to my wallet

Hi I'm new to this so may be asking a stupid question. I just sent a payment for 198.52 mBTC. There were two outputs. One for 196.39 mBTC that arrived. There was another output of 2 mBTC that didn't ...
1
vote
1answer
60 views

How can I use a large input if the difference of the outputs and the inputs goes to the fee?

I'm confused by how exactly Bitcoin transaction are calculated. A transaction contains inputs and outputs, and if its inputs exceed its outputs the difference is deemed as the transaction fee. So, ...
0
votes
1answer
56 views

Transactions tree not list?

I try to understand how Bitcoin handles change or the combination of multiple transactions to provide sufficient funds for a given price. Bitcoin transactions contain an array for the input ...

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