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Author Topic: Need help with TX size  (Read 183 times)
ammandj
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December 09, 2017, 09:06:34 PM
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so I have an online store and i have bitcoin-qt on linux box as payment gateway
I generate an address for each customer and they send various amounts to these addresses
the issue is that when i come to withdraw from BTC server, the transaction has multiple inputs and that causes it to increase in size ( we are talking about 5kb minimum tx size)

and fees become insanely high like today i wanted to with draw $500 worth of bitcoin and the low recommended fee is $160

so what do i do about this HuhHuh


and another thing who here can help me unstuck a tx that has low fee
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NUFCrichard
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December 09, 2017, 09:16:29 PM
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so I have an online store and i have bitcoin-qt on linux box as payment gateway
I generate an address for each customer and they send various amounts to these addresses
the issue is that when i come to withdraw from BTC server, the transaction has multiple inputs and that causes it to increase in size ( we are talking about 5kb minimum tx size)

and fees become insanely high like today i wanted to with draw $500 worth of bitcoin and the low recommended fee is $160

so what do i do about this HuhHuh


and another thing who here can help me unstuck a tx that has low fee
Wait until the fees required are low (not at the moment)
Check out this website to see when that happens. https://bitcoinfees.earn.com/

There are times when you can send Bitcoin with 10sats per byte, so for you it would be 10,000 sats.
That would be like $1.45 for you to get all of your accumulated Bitcoin into 1 address, ready to be sent in a normal transaction later.

It will probably never be fast to send with a 10 sats fee, but as long as you are sending it all to one address that is under your control, you can choose the timing and can be patient, it doesn't matter if it takes a day to get a confirmation.

Even now, if you are patient you can send with a 10-20 sats per byte fee and it'll be confirmed in the next day or so. don't pay $160, just be patient. Otherwise you can pay for a tx accelerator. I have no idea if they are good, but you can try.
ammandj
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December 09, 2017, 11:02:02 PM
 #3

thanks for the reply

but is there a way to reduce number of inputs, so the size of tx is smaller
TechPriest
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December 09, 2017, 11:27:58 PM
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and another thing who here can help me unstuck a tx that has low fee

Try to use ViaBTC accelerator or find "amaclin1" on forum. He has such service as i remember. But i don't know if he still providing his service or not.

In science we trust!
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December 10, 2017, 06:25:31 AM
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but is there a way to reduce number of inputs, so the size of tx is smaller
Unless you can convince your customers to send your larger amounts of BTC in a single transaction, no. Every payment you receive is going to be an input. There is a reason a lot of online services like gambling sites and exchanges have a "minimum deposit" value of around 0.001 or higher like 0.01.

Your other option is to try and find a payment processor who will aggregate smaller payments into a large payment to you... or do it yourself on a regular basis... every 10 transactions... collate them together, send them back to yourself with a low fee (use accelerators if they get stuck)... so you end up with a smaller number of larger value inputs.

It is the same issue that a lot of the so-called "cloud miners" are going to face soon... all these "daily payouts" of like 0.0001 are going to come back to haunt them now that BTC looks like it is going to stay $10K+ for a while.

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December 10, 2017, 09:20:59 AM
 #6

is there a way to reduce number of inputs, so the size of tx is smaller
You can Enable coin control features (Settings > Options > Wallet), and choose your own Inputs before sending. In times with high fees, you can manually select only the largest inputs.

Your other option is to try and find a payment processor who will aggregate smaller payments into a large payment to you...
The last few times I paid online with Bitcoin, the payment provider charged about 0.0005BTC extra to consolidate them. Their next outgoing transaction with many inputs paid $1000 on fees. So as a customer, on top of my own high fees, I'll have to pay their high fees too. For that reason I (regrettably) had to stop paying online with Bitcoins.

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