what is the lowest amount i can transfer using bitcoin ? can i send 0 satoshis?

i was looking at this bitcoin tx

https://blockchain.info/tx/b4ea693a9d2d7e32b66777964fce13da302bed024bd9fd4651919da650fb1c40

where

Inputs and Outputs
Total Input 0.00003 BTC
Total Output    0 BTC
Fees    0.00003 BTC
Fee per byte    12.821 sat/B
Fee per weight unit 3.205 sat/WU
Estimated BTC Transacted    0 BTC

the user has set total output as 0 BTC so in short all input is given as fee.

Is this common practice or bug ?

AMB

Posted 2017-09-01T05:03:42.573

Reputation: 292

Answers

This is unexpected (but valid) behavoiur of mining pool software. btw, i am creator of this tx

amaclin

Posted 2017-09-01T05:03:42.573

Reputation: 5 763

yes, 1aa... is my address – amaclin – 2017-09-01T14:07:40.280

~16 millions in "hot" (memory-only) database. welcome to email – amaclin – 2017-09-01T14:14:24.737

alistermaclin@mail.ru please – amaclin – 2017-09-01T14:18:38.213

got it. please delete comment.s, – AMB – 2017-09-01T14:19:03.660

could you explain, why it is unexpected? Isn't the tx valid? Or what is it, what makes it invalid, but gone through? – pebwindkraft – 2017-09-04T09:50:51.300

tx is valid but non-standard. pools have a right to confirm non-standard txs but usually do not use their ability. – amaclin – 2017-09-04T15:01:46.387

i tried broadcasting similar tx but received error as dust tx. so how could you broadcast it ? – AMB – 2017-09-10T03:56:28.947

-2

rules are defined here: https://en.bitcoin.it/wiki/Protocol_rules#.22tx.22_messages

it says "reject if the sum of input values < sum of output values", which is not the case. So a valid tx, where you spend all amounts to the miner...

pebwindkraft

Posted 2017-09-01T05:03:42.573

Reputation: 4 568