What does this mean on blockchain.info

[roland808]

Sorry for noob question I think...

I have a "stuck" transaction
https://blockchain.info/tx/680c0a395dfc83a7063086d812fcc8c8c1981d8cec1d51385e02b76da6dd4275

On that page is shows two outputs
the first 0.16742133 BTC is the amount I sent and also the amount showing as pending on bittrex

But whats the second amount of 0.01044064 BTC ? 

Also, If anyone has any ideas on what to do with this transaction seeing as Coinbase seem to have sent it with only a 1sat/B fee, I would love to know

[unamis76]

The second amount is the one that went to your change address. Regarding your transaction, your can use one of those transaction "speed up" services that have been popping up or ask a pool to include it in its next block.

[roland808]

The second amount is the one that went to your change address. Regarding your transaction, your can use one of those transaction "speed up" services that have been popping up or ask a pool to include it in its next block.

Sorry (again) but what is a change address?

[TryNinja]

Sorry (again) but what is a change address?

When the output of a transaction is used as the input of another transaction, it must be spent in its entirety. Sometimes the coin value of the output is higher than what the user wishes to pay. In this case, the client generates a new Bitcoin address, and sends the difference back to this address. This is known as change.

Say you want to buy a candy bar ($1) from a store. You open your wallet (fiat wallet) and inside there is a single $20 bill. What is the min amount you can pay? It isn't $1; you can't rip up 1/20th of the bill and give it to the cashier. You need to pay $20 and since you only owe $1, the cashier gives you back $19. Now in fiat nobody except the central bank can make new bills so bills are in fixed denominations and thus your fiat transaction may look something like the following.

e.g: If you receive a transaction of 1 Bitcoin in your wallet and wants to send 0.3 Bitcoin to someone. You will send 0.3 to your receiver's address and the other 0.7 remaining will be sent back to you, because your whole 1 Bitcoin received before needs to be spent.

More info: https://en.bitcoin.it/wiki/Change

[aleksej996]

You do control that other address, the change address, correct?

You can try to spend those coins you sent to that address. Try sending them to another address you own, even tho it's balance is not confirmed.
Use bitcoinfees.21.co to find the appropriate fee for the transaction and then double it, that will confirm both of the transactions.

So to recap, you will be doing what is called Child-Pay-For-Parent (CPFP) which means that you will make another transaction that is dependent of that one and has fees high enough for both of them together. That will give miners the incentive to confirm them both.

[cissrawk]

Let me help you with this, because i want to know how long it will be 1 sat/b will get confirmed.
How you can create 1 sat/b fee ? Usually wallet use regular fee (170-300 sat/b).

[roland808]

https://i.imgur.com/nJqTyGF.png

Let me help you with this, because i want to know how long it will be 1 sat/b will get confirmed.
How you can create 1 sat/b fee ? Usually wallet use regular fee (170-300 sat/b).

Coinbase set the fee afaik there is no way to change it on there.  I thought the blockchain.info site was broken or something first time I looked at the transaction 

You do control that other address, the change address, correct?

You can try to spend those coins you sent to that address. Try sending them to another address you own, even tho it's balance is not confirmed.
Use bitcoinfees.21.co to find the appropriate fee for the transaction and then double it, that will confirm both of the transactions.

So to recap, you will be doing what is called Child-Pay-For-Parent (CPFP) which means that you will make another transaction that is dependent of that one and has fees high enough for both of them together. That will give miners the incentive to confirm them both.

This is very interesting as well.  Did not know this thank you.  But in this case I don't think it can be done as its a bittrex wallet (fixed fee I think for one)


Thanks to everyone for the explanations on the change address.  I learned something here