All Questions
24 questions
2
votes
1
answer
87
views
Change output matches payment output type, not previous output type
Using the Bitcoin Core wallet making a transaction which spends a native segwit output and pays to a p2sh-wrapped segwit output will create a p2sh-wrapped change output.
It is different from my ...
- 21
1
vote
1
answer
342
views
Can it happen that, after a bitcoin transaction, the change is sent to a receiving (not change) address?
I have an Electrum wallet and I can see there are 2 types of addresses: receiving and change.
Change addresses are supposed to receive the change bitcoins after a transaction, but can it happen that ...
- 191
0
votes
2
answers
768
views
Why distinguish between receiving address and change address
I see receiving address and change address in wallet client and bip44. Why distinguish between receiving address and change address?
What will be the problem if I use only change address chain for ...
- 53
0
votes
1
answer
98
views
Change addresses in old backups
I have a very old wallet backup, from 2011, from bitcoin-qt, I imported it to bitcoin core, but I seem to have only one address, seems that I have no change addresses in the imported data.
Is the ...
- 101
0
votes
1
answer
79
views
How can you tell whether an address was made for CHANGE?
How to tell if an unrecognized, unclaimed address you sent BTC to is actually a "made for CHANGE" address?
And if you discover a CHANGE address with unspent $$ in it, how can you retrieve ...
- 31
1
vote
1
answer
43
views
wallet that does not abstract change addresses?
I wanted a hands on approach to see change adresses myself instead of hiding away all the details.
I also want to see non-deterministic wallets just for education so that I can understand. When we ...
- 13
2
votes
1
answer
616
views
bip44 address generation
I am writing hd wallet following bip44.
After each transaction, should I create a brand new change address each time?
Or can I use the same change address multiple times?
What is the recommended ...
- 97
0
votes
1
answer
261
views
Who stores your private key?
How does Bitcoin work when someone opens a wallet and gets a private key? Who stores that data? How could you access it if your forgot it?
Also, how is it verified when someone exchanges bitcoin and ...
- 41
1
vote
1
answer
172
views
Where does change go when making a transaction from funds imported from a paper wallet?
I'm new to bitcoin and have read numerous articles about it, but I still have questions about how it works.
All the articles that I read say the same that, once I spend bitcoin from paper wallet its ...
- 133
0
votes
0
answers
59
views
Where is the rest of my bitcoin? [duplicate]
I sent bitcoin from one of my wallets to another wallet using one address (output)
then this is what I got only a fraction of my bitcoin the bigger amount went to another unknown address to me
https:...
2
votes
1
answer
857
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....
- 23
0
votes
1
answer
94
views
Under what conditions could a change address immediately send the entire balance to a third-party address?
I have a situation where I sent 1 coin to and address I own and my wallet sent the unspent output to a change address but due to a glitch in the wallet software, that change address doesn't show up in ...
- 11
0
votes
1
answer
375
views
Why didn't my change come back to my wallet? And where is it now?
I sent a payment for 198.52 mBTC using Electrum. There were two outputs. One for 196.39 mBTC that arrived. There was another output of 2 mBTC that I'm assuming was processed as change. Does anyone ...
- 81
12
votes
4
answers
3k
views
If bitcoin is indivisible, where does change come from?
Let's say I want to give Alice .22 BTC. I currently have in my wallet 1 BTC. Because Bitcoin is indivisible, I have to spend the 1 BTC I have as input, and .78 BTC will be returned to me as change, ...
- 289
7
votes
1
answer
896
views
Wallet design: What to do with dust amounts in change?
I'm working on some quirks of a wallet I'm developing, and one of the issues is what to do with change amounts that are larger than dust ~600 satoshis, but less than a practical amount to be sent ...
- 5,676
11
votes
1
answer
25k
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 ...
- 111
1
vote
1
answer
796
views
Do all UTXO get moved to the newest change address?
There is one thing I do not understand about unspent outputs and change addresses. For example, let's say a person has 5BTC in a wallet, and they have 2 unspent outputs of 3BTC and 2BTC.
They one ...
- 33
3
votes
1
answer
1k
views
Why does Bitcoin use separate change addresses?
When you create a wallet, it creates one bitcoin address, correct?
When I send funds, it sends all my funds; the person I sent it to gets what I sent, and the change from the transaction is sent to a ...
- 31
2
votes
1
answer
589
views
Are there an infinity of public addresses for a wallet?
If I understand correctly a private 256-bit integer determines the curvature of an EC curve corresponding to your wallet and that 256-bit integer can be consider the "private key".
Now how many "...
4
votes
1
answer
577
views
When using a paper wallet and doing partial spends via blockchain.info. Where does the change go?
I'm pretty shocked that I found out now about the change thing as I read everywhere about paper wallets being secure, but no where does it state that when you spend partial amounts from your paper ...
- 11.1k
2
votes
1
answer
4k
views
How can I stop Electrum re-using change addresses?
I had three addresses containing BTC in my main Electrum wallet.
I then performed more than three sends, to addresses not in my wallet.
The first three sends used main wallet addresses to send BTC ...
- 214
1
vote
2
answers
4k
views
Most secure way of sending bitcoins from bitcoin-qt offline wallet
I have an offline wallet created by Bitcoin-QT.
I want to send some of the bitcoins in this wallet to another address.
The most secure way I can think of is this:
Boot from a Linux Live CD
Install ...
- 113
0
votes
3
answers
134
views
An online wallets that sends transaction change back to the original address
Is there any wallet client that conforms to the following:
The wallet client is accessed through a website (for portability).
The wallet client does not store any private keys (I know there is some ...
- 101
1
vote
1
answer
669
views
wallet.dat backup and 100 pregenerated keys [duplicate]
Reading about the "change" addresses and doing "wallet.dat" backups, I keep reading that -by default- bitcoin-qt generates 100 keys and use them when you need a new address. My question is this: what ...
- 123