Linked Questions

0
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0answers
45 views

Why UTXO is indivisible [duplicate]

I am new to understanding Bitcoin, but just read this: If an UTXO is larger than the desired value of a transaction, it must still be consumed in its entirety and change must be generated in the ...
1
vote
0answers
44 views

Why the address changes after each transaction? [duplicate]

Could you please help me understand these observations related to Bitcoin transaction? I have setup a brand new wallet from scratch and I sent 0.0246 BTC to it (well, slightly more but after the fees ...
0
votes
0answers
41 views

What is this transaction, I did not make [duplicate]

Can someone explain what has happened here? I mined a block of 50 a while back, then I recently made a payment of .31 BTC. Why is the other 49.69 also in the transaction? This extra transaction ...
0
votes
1answer
30 views

Why is it so that if some bitcoin is spent by any user, the rest of his account's amount should also be spent and paid him back? [duplicate]

I guess this is called Circular spending. Why is it required in the bitcoin protocol?
1
vote
1answer
31 views

My bitcoin change [duplicate]

I am new to this.I have sent out bitcoin over the blockchain before and saw that the hash just took a fee. However the other day it took out over.95 of a bitcoin when wanting to only send 0.04 of a ...
0
votes
0answers
28 views

Upon sending remaining wallet contents emptied? [duplicate]

Three addresses involved in this TX. Address A: My Wallet Address Address B: Recipients Wallet (Coinbase) Address Address C: Unknown! These are not the exact numbers but the transaction went like ...
0
votes
0answers
27 views

why a specific transaction value and it's output address which is sent from a specific IP address, returns from another address to that IP address? [duplicate]

I wrote a code to extract bitcoin output addresses and their values from TX messages of the bitcoin protocol. to test it, I prepare this scenario: first I send a specific bitcoin value(for example A ...
0
votes
1answer
24 views

Why is the value of the input way higher than the output resulting in a second change output? [duplicate]

Background: I'm experimenting on the LTC testnet client. My client has a balance of 0.4 LTC and I sent 0.1 LTC to another wallet address. https://chain.so/tx/LTCTEST/...
1
vote
0answers
21 views

Does Bitcoin transaction has information on remaining bitcoins with the sender? [duplicate]

I am new to Bitcoin and have gone through a couple of video introductions and articles. I have few questions on Bitcoin transactions: 1) I read that the sender needs to encode the numbers of ...
1
vote
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....
42
votes
3answers
11k views

Why does Bitcoin send the “change” to a different address?

For example I have an address (A) with 20 BTC and send 9 BTC to address (B). Bitcoin will create a "change" portion of the transaction where the remaining 11 BTC goes to address (C). Why not send ...
23
votes
2answers
5k views

How should you backup your wallet?

How often? Is backing it up once enough? Any best practices to storing the backup?
9
votes
4answers
2k views

Why do outputs need to be spent entirely?

I understand what change is and how it works (and it's analogous to physical money change), but what I don't understand is why this is needed in the first place. Given that this is all computer based,...
5
votes
1answer
12k views

What does change address mean inside Electrum wallet?

I am bit confused with the change label that is inside Electrum Wallet . Can I receive bitcoin if i give this address which are under change label? What is the difference between Receiving and Change ...
6
votes
3answers
19k views

Using dumpprivkey to make a paper backup

I'm just getting started with bitcoin and haven't acquired any significant amount yet, but want to feel relatively secure before I do. And at the moment, my fear of losing bitcoins or a device on ...

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