[Lightning-dev] OP_CHECKSPVPROOFVERIFY

Eric Lombrozo elombrozo at gmail.com
Wed Jul 29 22:46:22 UTC 2015


The reason such outsourceability is desirable is because it leads to
concrete, quantifiable incentives for running nodes to serve SPV clients
making it possible to reason about the economic security model of the
network.
On Jul 29, 2015 3:28 PM, "Eric Lombrozo" <elombrozo at gmail.com> wrote:

> I should have posted this to the whole group. Sorry, hit the wrong button.
> :p
> ---------- Forwarded message ----------
> From: "Eric Lombrozo" <elombrozo at gmail.com>
> Date: Jul 29, 2015 3:27 PM
> Subject: Re: [Lightning-dev] OP_CHECKSPVPROOFVERIFY
> To: "Joseph Poon" <joseph at lightning.network>
> Cc:
>
> Joseph,
>
> The point isn't better security than current SPV proofs. That would
> require improvements to the commitment structures.
>
> The point is to allow outsourceability of SPV proofs over LN. We would
> want to avoid actually using OP_CHECKSPVPROOFVERIFY in the blockchain...but
> it would allow crafting a contract requesting payment from the SPV client
> along with an enforcement mechanism in the event the client fails to pay.
>
> - Eric
> On Jul 29, 2015 12:54 PM, "Joseph Poon" <joseph at lightning.network> wrote:
>
>> Hi Eric,
>>
>> On Wed, Jul 29, 2015 at 02:08:39AM -0700, Eric Lombrozo wrote:
>> > It occurs to me that with the LN, it might be practical to outsource
>> > SPV proofs from other nodes.
>>
>> I couldn't find anything on an SPV proof opcode, what kind of opcode are
>> you thinking of or do you have any links? I tried looking it up but
>> couldn't find anything about it. I'm curious on whether/how it could it
>> offer significantly better security than current SPV proofs.
>>
>> --
>> Joseph Poon
>>
>
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