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From: vjudeu@gazeta.pl
To: Bryan Bishop <kanzure@gmail.com>,
 Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>,
 Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Date: Sat, 11 Nov 2023 11:54:56 +0100
Message-Id: <102858647-4a24d51eb95c76b443567edd0852c411@pmq6v.m5r2.onet>
Subject: Re: [bitcoin-dev] Future of the bitcoin-dev mailing list
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What about using Signet, or some separate P2P network, to handle all of tha=
t?
=C2=A0
1. All e-mails could be sent in a pure P2P way, just each "mailing list nod=
e" would receive it, and include to its mempool.
2. The inclusion of some message would be decided by signing a block. Moder=
ators would pick the proper messages, and publish them by broadcasting a ne=
w block to all nodes.
3. Each message will be signed by some public key. It could be changed each=
 time, or even derived from some HD wallet. Only those owning "master publi=
c keys" would know, which messages were sent by the same person.
4. The time of the block could be much longer than 10 minutes. It could be =
for example one hour, one day, or even longer. Or, the commitment to all of=
 that could be just included "every sometimes" to the existing Signet chain=
, because it would take no additional on-chain bytes, and can be easily don=
e in the coinbase transaction.
5. If there will be too much spam in the mempool, then hashcash-based Proof=
 of Work can be used to filter messages. Instead of fee-based filtering, it=
 could be Proof-of-Work-based filtering. Even better: because of "master pu=
blic keys", the regular participants could be allowed anyway, without provi=
ding additional Proof of Work. Their signature would be sufficient in that =
case.
6. The code is almost there. Maybe there are even altcoins, designed specif=
ically for storing data, and we could just use them?
7. This kind of decision would push things like Silent Payments forward. Be=
cause then, you could develop scanners, to know, who wrote which message. Y=
ou could enter some "master public key", scan the whole chain, and find out=
 all messages written by that particular participant.
8. It would push commitments forward. Because then, it would be possible to=
 send some message to the "P2P mailing list network", and reveal it later. =
Of course, it is not mandatory to accept commitments at all, which means, t=
hey could be easily disabled, if they would be misused. Or we could start w=
ith no commitments, and introduce them later if needed.
9. Because Signet challenge can contain some multisig, or even some Taproot=
 address, there will be no issue with using the same password to access the=
 moderation panel. Also, in that case, it is possible to prove later, which=
 moderator accepted which message. And also, it is still possible to use so=
me shared key, if revealing that is not desirable, or even it is possible t=
o easily reach "approved by all moderators" messages, because their Schnorr=
 signatures could be combined. Also, any K-of-N multisig can be battle-test=
ed in that way.
=C2=A0
So, I can see two options: reusing some existing P2P network, or making a n=
ew one, designed specifically for handling mailing list messages in a pure =
P2P way. I guess we can try some existing chains first, and if there is no =
promising altcoin, or if we don't want to be associated with any altcoin, t=
hen our own Signet-like network could solve it.
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<div>
<div>What about using Signet, or some separate P2P network, to handle all o=
f that?</div>
<div>&nbsp;</div>
<div>1. All e-mails could be sent in a pure P2P way, just each "mailing lis=
t node" would receive it, and include to its mempool.<br />2. The inclusion=
 of some message would be decided by signing a block. Moderators would pick=
 the proper messages, and publish them by broadcasting a new block to all n=
odes.<br />3. Each message will be signed by some public key. It could be c=
hanged each time, or even derived from some HD wallet. Only those owning "m=
aster public keys" would know, which messages were sent by the same person.=
<br />4. The time of the block could be much longer than 10 minutes. It cou=
ld be for example one hour, one day, or even longer. Or, the commitment to =
all of that could be just included "every sometimes" to the existing Signet=
 chain, because it would take no additional on-chain bytes, and can be easi=
ly done in the coinbase transaction.<br />5. If there will be too much spam=
 in the mempool, then hashcash-based Proof of Work can be used to filter me=
ssages. Instead of fee-based filtering, it could be Proof-of-Work-based fil=
tering. Even better: because of "master public keys", the regular participa=
nts could be allowed anyway, without providing additional Proof of Work. Th=
eir signature would be sufficient in that case.<br />6. The code is almost =
there. Maybe there are even altcoins, designed specifically for storing dat=
a, and we could just use them?<br />7. This kind of decision would push thi=
ngs like Silent Payments forward. Because then, you could develop scanners,=
 to know, who wrote which message. You could enter some "master public key"=
, scan the whole chain, and find out all messages written by that particula=
r participant.<br />8. It would push commitments forward. Because then, it =
would be possible to send some message to the "P2P mailing list network", a=
nd reveal it later. Of course, it is not mandatory to accept commitments at=
 all, which means, they could be easily disabled, if they would be misused.=
 Or we could start with no commitments, and introduce them later if needed.=
<br />9. Because Signet challenge can contain some multisig, or even some T=
aproot address, there will be no issue with using the same password to acce=
ss the moderation panel. Also, in that case, it is possible to prove later,=
 which moderator accepted which message. And also, it is still possible to =
use some shared key, if revealing that is not desirable, or even it is poss=
ible to easily reach "approved by all moderators" messages, because their S=
chnorr signatures could be combined. Also, any K-of-N multisig can be battl=
e-tested in that way.</div>
<div>&nbsp;</div>
<div>So, I can see two options: reusing some existing P2P network, or makin=
g a new one, designed specifically for handling mailing list messages in a =
pure P2P way. I guess we can try some existing chains first, and if there i=
s no promising altcoin, or if we don't want to be associated with any altco=
in, then our own Signet-like network could solve it.</div>
</div>

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