Bitcoin Forum

Bitcoin => Bitcoin Technical Support => Topic started by: lv99 on January 27, 2016, 09:52:53 PM



Title: Problem with a transaction
Post by: lv99 on January 27, 2016, 09:52:53 PM
https://blockchain.info/tx/5bc9001a781849e1e276e7c8cc556929927fb547c483d37e3fab4d6f02b3d6cb

It's marked as high priority, has an Ok fee, so any ideas on what could be wrong?


Title: Re: Problem with a transaction
Post by: Nikinger on January 27, 2016, 09:55:51 PM
Problem: The previous transaction isn't confirmed and has multiple unconfirmed transaction as parents.


Title: Re: Problem with a transaction
Post by: Nybbas on January 27, 2016, 10:02:32 PM
Did you paid a fee? In wallet settings..


Title: Re: Problem with a transaction
Post by: lv99 on January 27, 2016, 10:05:32 PM
Problem: The previous transaction isn't confirmed and has multiple unconfirmed transaction as parents.

Sorry I'm new to this so, what do you mean?

I bought BTC from foxbit.com and them sent it to my wallet. Which was empty. And from what I read it doesn't take that long.


Did you paid a fee? In wallet settings..

It was sent to my wallet from foxbit.com. The site puts a 0.0001 Fee as you can see on blockchain.


Title: Re: Problem with a transaction
Post by: wayniac30 on January 27, 2016, 10:07:46 PM
Problem: The previous transaction isn't confirmed and has multiple unconfirmed transaction as parents.

Sorry I'm new to this so, what do you mean?

I bought BTC from foxbit.com and them sent it to my wallet. Which was empty. And from what I read it doesn't take that long.


It means the parent sender for those coins isn't confirmed yet... but i see it's confirmed now


Title: Re: Problem with a transaction
Post by: achow101 on January 27, 2016, 10:09:00 PM
Problem: The previous transaction isn't confirmed and has multiple unconfirmed transaction as parents.

Sorry I'm new to this so, what do you mean?
Bitcoin spends outputs from other transactions. A transaction can only become confirmed if all of the transactions that it spends outputs from are also confirmed. If those previous transactions are not confirmed, then the transaction will not confirm.

The source of the problem is https://blockchain.info/tx/a80d093e497b854a94e176c339d1b8bf3996f213f9f921cb91aaa7f6597da893. This transaction was holding up the chain as it was unconfirmed. It had a relatively low fee and a large size. Fees are based on transaction size (as in the size in bytes of the transaction).

Since that transaction has now been confirmed, all later transactions (including yours) are also now confirmed.


Title: Re: Problem with a transaction
Post by: Nybbas on January 27, 2016, 10:10:10 PM
What has happened exactly?
When you doing big transaction you better give better fee?


Title: Re: Problem with a transaction
Post by: lv99 on January 27, 2016, 10:14:55 PM
Oh now I get it. Thanks for your help

I got curious about something... is there a fixed price list or something to know how much fee is needed for x kbytes ?


Title: Re: Problem with a transaction
Post by: achow101 on January 27, 2016, 10:46:29 PM
Oh now I get it. Thanks for your help

I got curious about something... is there a fixed price list or something to know how much fee is needed for x kbytes ?
The fee is not fixed. It varies depending on the number of unconfirmed transactions. I use this site: http://www.cointape.com/ to estimate fees. It does satoshis per byte. You just figure out the size of the transaction and then calculate the fee based on that.