Bitcoin Forum

Hi guys, I've a question about this transaction https://blockchain.info/tx/3d7b2e460cdc5a70a426859e68722f9e591f40f49aed0a4c53274e3278020460 (https://blockchain.info/tx/3d7b2e460cdc5a70a426859e68722f9e591f40f49aed0a4c53274e3278020460)

Why the transaction size is so big (8331 bytes!!!) when I see that other transactions are only 2-300 bytes? I've sent the money with the Blockchain's App for Android
I think that is because of the size that the transaction is still unconfirmed after 4+ hours, isn't it?  :-\

Thanks in advance!  :)

It has a shitload of inputs, check it with Advanced mode on:

https://blockchain.info/tx/3d7b2e460cdc5a70a426859e68722f9e591f40f49aed0a4c53274e3278020460?show_adv=true

the tx have a big size because it is spending a lot of inputs. it's still unconfirmed because you didn't pay the recommended fee.

As others have already said, its because of the high number of inputs.Its roughly "148 * number_of_inputs + 34 * number_of_outputs + 10" To know what fee is recommended per byte, visit: https://bitcoinfees.21.co/

Ah ok, so my input is made by all the small transactions that I received!!! I didn't know this...so I only have to wait before someone includes this transaction in a block...  :-[
Then is better to receive one bigger transaction than a lot of small transaction!

Thanks for the reply!  :)

Which wallet are you using? We might be able to tell you how to double spend your TX with a higher fee or if its better to wait to get your coins back.

I've created my wallet on Blockchain site...but now I have only 100k satoshis, so I think I can't make a double spend without money  ;D
The only thing I can do is wait  :D

Blockchain site? Blockchain.info? If so get used to refering to them as blockchain.info, because they are not the blockchain. They will return your coins after 2-3 days, double spend makes no sense in this case. Just wait.

Yes, blockchain.info  :D  I'll just wait...do you think there is no chance that someone includes the transaction in a block?  ???

Doesn't look good: https://blockchain.info/unconfirmed-transactions

1.2 Satoshi per byte looks really bad IMHO.

According to "cointape"[1] you are among ~10000 other unconfirmed TX and with 1.2 you are on the low end. The picture is similar on my own node.

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


[1] they have a new url https://bitcoinfees.21.co/

Next time I will not use the App to send bitcoins...it sets automatically 10k satoshi as a fee and it seems that I can't adjust it  :'(

You can adjust it by going to custom send and set the fee by yourself. I knew that blockchain.info automatically sets the recommended fee. The only problem you've had is that transaction have too many inputs.

Thats exactly the problem. There is no more recommended fee that is independant of the TX size in bytes.

The transaction has now 66 confirmations, I didn't expect that  ;D
Anyway, on the website (blockchain.info) there is a setting that adds 10k satoshi per KB, on the android app I can't find it...so the next time I'll use the website  ;)

Thanks for the help guys!!!  :D

instead blindly of setting the fee to 10k sat per KB everytime you send some btc you should take a look at this site (https://bitcoinfees.21.co/) shorena linked above and set the fee manually. the recomended fee isn't fixed at 10k satoshi per KB. for example right now the recommended fee is around 20K sat per KB.