From: Christopher Allen <ChristopherA@lifewithalacrity•com>
To: bitcoin-dev@lists•linuxfoundation.org
Subject: Re: [bitcoin-dev] Claiming an OP_RETURN Prefix
Date: Tue, 14 Aug 2018 11:34:13 -0700 [thread overview]
Message-ID: <CACrqygD_5jpkTvvcFo7eHxZfiH4evzZQc=YB=opBo6M_0EsZTQ@mail.gmail.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1060 bytes --]
On August 5, 2018 9:11:26 PM UTC, Lautaro Dragan via bitcoin-dev
<bitcoin-dev at lists.linuxfoundation.org> wrote:
>Should we actually be using the BIP process to claim a prefix?
I recommend against using an op_return prefix, as they allow for
transaction censorship.
In fact, in our case, where we use an IPFS hash in an op_return, we remove
the IPFS multihash prefix information to post a “bare” SHA256 hash to look
like many other hashes being posted in op_returns, to minimize any ability
for a miner to identify our transaction. The more projects that do this the
better — a form of herd immunity.
Longer term I’m looking for more responsible ways to publish this hash, for
instance have the hash be in the witness script data, so that it can be
easily purged from nodes that do not wish to preserve it and prevent block
size bloat. However, to do so everyone has to do it the same way, ideally
have it look like any other transaction. I’ve not quite seen a solid
proposal for best practices here.
— Christopher Allen
[-- Attachment #2: Type: text/html, Size: 1198 bytes --]
next reply other threads:[~2018-08-14 18:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-14 18:34 Christopher Allen [this message]
2018-08-15 20:33 ` Jorge Timón
2018-08-15 20:40 ` Jude Nelson
2018-08-15 21:54 ` Christopher Allen
2018-08-16 1:06 ` Luke Dashjr
2018-08-16 2:22 ` Lautaro Dragan
2018-08-16 2:37 ` Luke Dashjr
2018-08-16 17:32 ` Ryan Grant
2018-08-15 21:46 ` Peter Todd
-- strict thread matches above, loose matches on Subject: below --
2018-08-05 21:11 Lautaro Dragan
2018-08-05 23:57 ` Peter Todd
2018-08-06 0:55 ` Lautaro Dragan
2018-08-06 1:54 ` CryptAxe
2018-08-06 2:04 ` Luke Dashjr
2018-08-06 2:19 ` Lautaro Dragan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CACrqygD_5jpkTvvcFo7eHxZfiH4evzZQc=YB=opBo6M_0EsZTQ@mail.gmail.com' \
--to=christophera@lifewithalacrity$(echo .)com \
--cc=bitcoin-dev@lists$(echo .)linuxfoundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox