From: Paul Sztorc <truthcoin@gmail•com>
To: Luke Dashjr <luke@dashjr•org>,
bitcoin-dev@lists•linuxfoundation.org,
Chris Stewart <chris@suredbits•com>
Subject: Re: [bitcoin-dev] BIP: OP_BRIBVERIFY - the op code needed for Blind Merge Mined drivechains
Date: Wed, 28 Jun 2017 12:43:22 -0400 [thread overview]
Message-ID: <32d0153f-0660-3261-237e-516b570bc2db@gmail.com> (raw)
In-Reply-To: <201706280520.29105.luke@dashjr.org>
Hi Luke,
On 6/28/2017 1:20 AM, Luke Dashjr via bitcoin-dev wrote:
> On Wednesday 28 June 2017 12:37:13 AM Chris Stewart via bitcoin-dev wrote:
>> BRIBEVERIFY redefines the existing NOP4 opcode. When executed, if the given
>> critical hash is included at the given vout index in the coinbase
>> transaction
>> the script evaluates to true. Otherwise, the script will fail.
>>
>> This allows sidechains to be merged mined against
>> bitcoin without burdening bitcoin miners with extra resource requirements.
>
> I don't see how. It seems like the logical outcome from this is "whoever pays
> the most gets the next sidechain block"... That's not particularly useful for
> merge mining.
This is one of the assumptions which BMM exploits, see #4 of:
http://www.truthcoin.info/blog/blind-merged-mining/#focus
The idea is that this is a safe assumption, because it is already the
case today. If we assume that miners revenue-maximize, and further that
the "bidder" frames his payments in tx-fees, then a willing buyer can
control the next block by simply filling it with high tx-fee spam.
Anyone who is willing to pay the most can already 'get' the next
mainchain block (only, indirectly).
>
>> This enables sidechains in Bitcoin.
>
> There are different kinds of sidechains...
>
> Federated peg: this already works on Bitcoin.
> SPV/SNARK peg: this isn't enabled by your BIP.
> Drivechains: this isn't enabled by your BIP.
>
> How do you say this enables any kind of sidechain?
Yes, it is unclear, but Chris' email is specific to blind merged mining
(BMM), which is kind of a "sidechains +". So this does not directly
enable any sidechains. Instead, it enables the "+" part.
--Paul
next prev parent reply other threads:[~2017-06-28 16:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-28 0:37 Chris Stewart
2017-06-28 4:07 ` Gregory Maxwell
2017-06-28 16:35 ` Paul Sztorc
2017-06-28 5:20 ` Luke Dashjr
2017-06-28 5:28 ` Adam Back
2017-06-28 16:43 ` Paul Sztorc [this message]
2017-06-28 8:26 ` ZmnSCPxj
2017-06-28 22:20 ` Paul Sztorc
2017-06-28 22:49 ` Russell O'Connor
2017-06-28 23:47 ` Chris Stewart
2017-06-29 1:09 ` Russell O'Connor
2017-06-30 4:00 ` ZmnSCPxj
2017-06-30 14:12 ` Chris Stewart
2017-06-30 16:51 ` CryptAxe
2017-07-02 21:32 ` Paul Sztorc
2017-07-04 7:21 ` ZmnSCPxj
2017-07-04 15:06 ` Chris Stewart
2017-07-12 8:50 ` ZmnSCPxj
2017-07-12 13:39 ` Russell O'Connor
[not found] ` <CAGL6+mHErvPbvKxrQkJ=DdTuzH-4Fsxh8JnnzVY16m2x6zeJFQ@mail.gmail.com>
2017-07-12 18:02 ` Chris Stewart
2017-07-13 0:00 ` Paul Sztorc
2017-07-13 20:22 ` Chris Stewart
2017-07-13 20:45 ` Paul Sztorc
2017-07-12 23:31 ` Paul Sztorc
[not found] ` <CAF5CFkg+mJQ75ps7f3Xa=j2eBDoNwFEdL-vFrFV5y_FqF3qGRA@mail.gmail.com>
2017-07-12 23:58 ` CryptAxe
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