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From: Adam Back <adam.back@gmail.com>
To: CryptAxe <cryptaxe@gmail.com>,
	 Bitcoin Protocol Discussion
	<bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] SF proposal: prohibit unspendable outputs with amount=0
Date: Thu, 7 Sep 2017 02:29:55 +0100	[thread overview]
Message-ID: <CALqxMTHxdLqms_OgT71EtS2kY2=_8yfNsatNNnOjfSHrLnQL-Q@mail.gmail.com> (raw)
In-Reply-To: <CAF5CFkh4DWE6Ca-5LFrgkGxWgYqqJdEdv+JZ+3wp+0eTm_vqCw@mail.gmail.com>

The pattern used by Felix Weiss' BIP for Confidential Transactions
depends on or is tidier with 0-value outputs.

Adam


On 7 September 2017 at 00:54, CryptAxe via bitcoin-dev
<bitcoin-dev@lists.linuxfoundation.org> wrote:
> As long as an unspendable outputs (OP_RETURN outputs for example) with
> amount=0 are still allowed I don't see it being an issue for anything.
>
> On Sep 5, 2017 2:52 PM, "Jorge Timón via bitcoin-dev"
> <bitcoin-dev@lists.linuxfoundation.org> wrote:
>>
>> This is not a priority, not very important either.
>> Right now it is possible to create 0-value outputs that are spendable
>> and thus stay in the utxo (potentially forever). Requiring at least 1
>> satoshi per output doesn't really do much against a spam attack to the
>> utxo, but I think it would be slightly better than the current
>> situation.
>>
>> Is there any reason or use case to keep allowing spendable outputs
>> with null amounts in them?
>>
>> If not, I'm happy to create a BIP with its code, this should be simple.
>> _______________________________________________
>> bitcoin-dev mailing list
>> bitcoin-dev@lists.linuxfoundation.org
>> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
>
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>


  reply	other threads:[~2017-09-07  1:29 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-05 21:51 [bitcoin-dev] SF proposal: prohibit unspendable outputs with amount=0 Jorge Timón
2017-09-06 22:20 ` Tier Nolan
2017-09-06 23:54 ` CryptAxe
2017-09-07  1:29   ` Adam Back [this message]
2017-09-07  3:41     ` CryptAxe
2017-09-07  9:56       ` Hampus Sjöberg
2017-09-07 10:31   ` Tier Nolan
2017-09-07 18:00 ` Peter Todd
2017-09-09 21:11   ` Jorge Timón
2017-09-13  9:24     ` Peter Todd
2017-09-13  9:34       ` Gregory Maxwell

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