Subject: Re: [bitcoindev] [BIP Proposal] Utreexo Nodes

From: Murch <[email-masked]>
Date: Wed, 6 Aug 2025 15:36:33 -0700

Hello Calvin and all,

Thank you for sharing your drafts. I skimmed your proposals and found 
them to be shaping up nicely. I didn’t notice anything worth conceptual 
feedback at this time, but will have plenty comments later in the 
process when they are more fitting. Obviously, utreexo has had a lot of 
discussion in the past already and these proposals are fairly close to 
the editorial requirements, so please feel free to open pull requests 
for the proposals whenever you feel ready to do so.

Cheers,
Murch

On 2025-07-29 16:20, Calvin Kim wrote:
> Hello all,
>
> Tadge Dryja, Davidson Souza, and I would like to propose 3 BIPs 
> describing Utreexo, a consensus-compatible (non-soft fork) way to send 
> and verify transactions without storing the full UTXO set.
>
> The 3 BIPs are for:
>
>  1. The specification of the Utreexo accumulator.
>  2. The specification of Bitcoin block and tx validation using the
>     Utreexo accumulator.
>  3. The peer to peer networking changes required to enable Utreexo nodes.
>
>
> We are currently looking for conceptual review. Do note that the 
> documents are not final, and they will be updated.
>
> All of the BIPs can be found here: https://github.com/utreexo/biptreexo
>
> We thank you in advance for your time and consideration.
>
> Best,
> Calvin
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