<p>Yes. Such transactions are valid and standard.</p>

CC BY-SA 3.0
2017-07-25T19:02:22.710Z
2017-07-25T19:02:22.710Z
Ava Chow
<p>My goal is to create a transaction that spends dust outputs to a miner. Since the goal is to reduce the UTXO set by consuming low value outputs, I do not want to create any new UTXO by actually sending Bitcoin to an address.</p>

<p>Is it valid to make a transaction with several inputs and only one single, zero value <strong><em>prunable</em></strong> OP RETURN output?</p>

CC BY-SA 3.0
2017-07-25T20:16:48.980Z
there are ~50 million UTXO. your efforts are teardrop in ocean
amaclin
CC BY-SA 3.0
2017-07-25T20:18:30.890Z
It's a technical question not a charity proposal. But consider all those useless UTXOs produced by Counterparty. A large scale clean up could be effective
pinhead
CC BY-SA 3.0
2017-07-25T21:22:47.310Z
Services like http://www.cryptograffiti.info/ encode arbitrary data in unspent outputs every single day.
amaclin
<transactions><op-return><dust>
Can a transaction have a single 0-value OP_RETURN as its only output?
pinhead
# Can a transaction have a single 0-value OP_RETURN as its only output?

(Asked by: username_0 on 2017-07-25)

My goal is to create a transaction that spends dust outputs to a miner. Since the goal is to reduce the UTXO set by consuming low value outputs, I do not want to create any new UTXO by actually sending Bitcoin to an address.

Is it valid to make a transaction with several inputs and only one single, zero value ***prunable*** OP RETURN output?

**Tags:** transactions, op-return, dust

> **Comments:**
> **username_1**: there are ~50 million UTXO. your efforts are teardrop in ocean  
> **username_0**: It's a technical question not a charity proposal. But consider all those useless UTXOs produced by Counterparty. A large scale clean up could be effective  
> **username_1**: Services like http://www.cryptograffiti.info/ encode arbitrary data in unspent outputs every single day.  

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## 1 answers

### Answer by username_2 on 2017-07-25. Score: 6 | Accepted answer

Yes. Such transactions are valid and standard.


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