Subject: [bitcoindev] [BIP Proposal] Block template sharing

From: Anthony Towns <[email-masked]>
Date: Wed, 13 Aug 2025 10:18:09 +1000

Hi all,

I did a write up with a proof of concept of the idea of sharing
block templates with peers, particularly in order to improve compact
block relay when miners and nodes have differing mempool policies. It's
at:

https://delvingbitcoin.org/t/sharing-block-templates/1906

I've now also written up a draft BIP specifying the p2p messages that
uses, which can be found here:

https://github.com/ajtowns/bips/blob/202508-sendtemplate/bip-ajtowns-sendtemplate.md

Review welcome! If you prefer to make comments via a github review
rather than here or on delving, I've opened a PR on my own repo at
https://github.com/ajtowns/bips/pull/7 which you could use.

Cheers,
aj

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