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Questions tagged [change]

Splitting a transaction and sending some of the coins back to the sender. Necessary for some currencies due to the design of the protocol.

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1answer
30 views

I have a bitcoin utxo question

'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 ...
0
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1answer
16 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 ...
1
vote
2answers
46 views

Get back my change [closed]

Please help. I was new to thew blockchain and did not know about getting change back. when the address to give me my change showed up on my Ledger nano wallet I hit the x instead of the check mark. I ...
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 ...
1
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1answer
44 views

May it be a risk to use the origin as the change address?

Follow scenario: The balance of my origin address is 1 BTC. I'm transfering 0.1 BTC to a shop where I'm buying some goods, my wallet returns the change to my origin address. Now my origin address has ...
1
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2answers
57 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 ...
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2answers
128 views

Determine which transaction output is a change address and which is not [duplicate]

Is there a way to determine which transaction output is a likely a change address and which is not? Looking at this transaction, there are two outputs - a change address and the output address. ...
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2answers
508 views

BIP44 and change addresses

I always wondered why BIP44 HD wallet differentiate between internal change addresses (m/44'/0'/0'/1/*) and external receiving (m/44'/0'/0'/0/*)? Why do some wallets advice me not using internal ...
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1answer
122 views

Tamper - evident log with hash pointer

We know that the hash of the previous block is included in the header of the next block. So, if an adversary change the data in the block no. 10, then they hash of it will be changed and the header of ...
1
vote
1answer
589 views

What's with this address 1111111111111111111114oLvT2?

It was the burn address with the most BTC received in 2017 according to http://bitcoinwhoswho.com/blog/2017/12/30/8-97-bitcoins-burned-in-2017/. It's Hash160 is ...
0
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1answer
257 views

how to get change address using derived BIP44 publicKey?

I have generated a private key using my master seed private key. PHP Code: $bip44 = HierarchicalKeyFactory::fromExtended($result['masterPrivKey']); $publicKey = $bip44->derivePath("m/44'/0'/0'")...
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vote
1answer
280 views

Is this an incoming or outgoing transaction

I recently looked at this bitcoin transaction: transaction: 3b0e8fae9640e1d043cfef14815c6885e58d71e7ee31cfa53f9c9d5acb138a4d For those who do not want to look at the transaction, I will give a ...
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1answer
82 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
300 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 ...
0
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1answer
184 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 ...
1
vote
1answer
47 views

Seemingly random transactions on testnet

I'm testing my bitcoin marketplace site using testnet. Sometimes I'll simulate a payment from a buyer to a seller. In this scenario, my site generates a payment address and the fake buyer is supposed ...
1
vote
1answer
97 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 ...
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0answers
58 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:...
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1answer
1k views

Increase transaction fee with Bitcoin Core client fails because of no change output. Why?

Context I created a transaction (using the full balance of an output) with the Bitcoin Core Wallet (running as full node). The transaction got into the mempool of major nodes, as expected. I set the ...
2
votes
1answer
31 views

How to distinguish between change and actual sent amount looking at transaction data

I am building analytics starting from blockchain raw data (blk**.dat files). I have read in the bitcoin wiki that once the inputs have been chosen for a transaction, they must be all used: so a ...
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0answers
248 views

Elecrtrum Change Address Problem [duplicate]

While I sending BTC to specific adress, it went to it but also it went to another address. How can i refund it?
2
votes
1answer
460 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....
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1answer
46 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 ...
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1answer
70 views

Can bitcoins be moved from the origin address to the origin address? [duplicate]

I ask this because it seems more efficient to send change to the original address instead of a new one. Does the cryptography not allow this?
2
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1answer
2k views

What happens when two transactions send to the same address?

I would like to know the consequences of sending bitcoin several times to the same address. Let us say I send 1 BTC from Address1 to Address3 and later I send 2 BTC from Address2 to Address3 again. ...
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0answers
359 views

I can't send any BTC out of Electrum without an output of 2 mBTC to an unknown recipient

If I want to send BTC from my electron wallet I can't do so without there being an output to an unknown recipient. Last week I lost 2 mBTC in a transaction and have been trying to work out why. I ...
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1answer
283 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 ...
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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 ...
11
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4answers
2k 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, ...
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votes
1answer
62 views

can I recover the change of a TX?

I was reading and I have a question, if you please can help me. I send 0.00335 BTC in this TX: bf3eedc1929042444e62badaf885a8dd49333c31ff40d023175a90da241ec2e0 and I see the 0.00335 as spent, but the ...
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1answer
1k views

Explorer showing different balance then my Blockchain wallet

My Blockchain wallet address on the explorer, shows a low balance (under .001) but when I log into the wallet I can see what should be there about .25 BTC. My Electrum wallet is also doing the same. ...
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1answer
89 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 ...
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2answers
1k views

PoS (Proof of Stake) what happens to the coin age of the change after I send an amount?

Ok simple scenario I have 100 'whatever' coins in a PoS wallet, they are mature and have a stake weight that is approaching the weight to stake and forge a block. I send 1 whatever coin to my freind ...
6
votes
1answer
727 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 ...
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2answers
553 views

About changed address

I am using electrum. First, I had a bitcoin address and I used it once to receive BTCs and then it changed. Will I be able to receive Bitcoins now, even if someone sends them to the old address?
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2answers
59 views

If btc change is supposed to be distributed to change addresses, can the distributed change be pooled and paid together in 1 new transaction?

Since last time I dabbled in bitcoin using a single address wallet (using fractions of coins gained from captcha faucets), I've learned about new things like change addresses. I understand when you ...
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3answers
183 views

What can be changed in signed bitcoin transaction?

What can be changed in signed bitcoin transaction? I mean how is possible to modify transaction to change its hash, but keep transaction valid, without need to have sign private keys?
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1answer
537 views

Why do transactions send coins to the same address as they spent it from?

I often notice transactions such as: 364efe5a906de5971e242f9711008e58a5ab79f136a8044b66615e8662d35f09 Where funds from the address 3PU with 1.38 BTC are split to itself (1.35 BTC) and 37Ek (0....
2
votes
1answer
63 views

Anonymity of Bitcoin ownership a fakery?

If John needs to send 0.1 BTC to you as payment to your product, and he wants to retain his BTC ownership confidential, and the transaction goes something like this... 1fdfsefesf..... ---> send 0....
1
vote
1answer
506 views

Why does coinbase make 2 transfers instead of one

I'm new to bitcoin in general and coinbase.com in particular. Can somebody explain what happens when I order a payment (in bitcoins) from their web interface? Say that my acount owns 1 BTC. I create ...
4
votes
1answer
11k 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 ...
5
votes
1answer
585 views

Trying to create a bitcoin public/private key using bitcoin-core

I want to create a single bitcoin address to which I can send and receive funds too. Using the bitcoin-core console, I typed in the following: Input: getnewaddress Output: Address: ...
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1answer
260 views

UTXO all sent to change address?

I have read this question that asks if all UTXOs in an address are sent to a change address or only the UTXO involved in the transaction. As part of a spending transaction, the public address is ...
1
vote
1answer
58 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, ...
1
vote
2answers
1k views

how to configure bitcoin-core (bitcoin-qt) to not use change addresses?

Can bitcoin-core wallet be configured to not use change addresses, but just one address? If yes, how? Thanks (PS: I know most people will try to convince me that this is not a good thing, but I have ...
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2answers
678 views

Why is the change address for a transaction the same as the originator address?

I was under the impression that if address abc has 100 BTC assigned to it, and it pays address def 20 BTC, 80 BTC will be transferred from abc to a new address ghi. But in this transaction: https://...
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0answers
209 views

How can you make bitcoinj not use change addresses?

My question is related to bitcoinj library but not limited by it. bitcoinj will create new change address after every transaction. It will manage them transparently, but let say I want to use this ...
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1answer
481 views

Split transaction

Looking at this transaction I was wondering what the unspent part means. Does it belong to the original address owner? If so, how can it be used/claimed? Edit: All cleared up, and seemingly a feature ...
1
vote
1answer
283 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 ...