Linked Questions

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2answers
61 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
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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
99 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
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1answer
88 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
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1answer
101 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 ...
1
vote
1answer
59 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, ...
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1answer
74 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 ...
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1answer
54 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 ...
0
votes
1answer
40 views

Could someone explain how the TX operation here works?

I know this is a BCH address, but it's the best example I could find. The same concept holds for BTC, so understanding what's going on is relevant. https://explorer.bitcoin.com/bch/tx/...
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2answers
36 views

which is the relationship between ouput adresses and their value in a specific transaction?

Some days ago, I write a program to extract output addresses and its value in tx messages of a sample bitcoin pcap. extracted addresses are all valid and we can find them in block explorers. after ...
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1answer
38 views

Why is there sometimes no output that sends funds back to the sender's address?

'A' has one bitcoin. 'A' tries to send a 0.5 bit coin to 'B'. Two utxo are created. First, "utxo" sends "B" 0.5 bitcoin. Second, "utxo" where "A" remits remaining bitcoins to "A" except for 0.5 ...
-2
votes
0answers
34 views

Unexpected NEO Transfer

On 12/27/2016 I started a token transfer of 11,067 NEO to my Bittrex Wallet, but for an unknown reason 20,843 NEO have been transferred in total. The problem is that 9,776 of the 20,843 NEO Coins ...
0
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0answers
22 views

Bitcoin was sent out and still hasn't been received

I sent bitcoin out to a segwit address (P2SH) and it split the transactions in 2 but I still haven't seen them delivered in into the wallet

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