Re: [bitcoindev] BIP Draft Post-Quantum Address Format (bc1z) using ML-DSA-65

[Murch <murch@murch.one>]

Hey Hans,

Thanks for taking it with humor.
In the past couple years, we had at least five PQ-output type proposals 
chucked over the fence into the BIPs repository, and probably at least 
as many that made it to the mailing list or Delving. Please feel free to 
peruse them, if you want to see why they ended up consuming review time 
without going anywhere:

• https://github.com/bitcoin/bips/pull/1830
• https://github.com/bitcoin/bips/pull/1832
• https://github.com/bitcoin/bips/pull/2147
• https://github.com/bitcoin/bips/pull/2176
• https://github.com/bitcoin/bips/pull/2194
• 
https://delvingbitcoin.org/t/new-post-quantum-bitcoin-proposal-using-winternitz-lamport-auth-chains/2525
• 
https://delvingbitcoin.org/t/p2wots-post-quantum-utxo-winternitz-signatures/2530
• …

For contrast, please look at some BIPs that actually proposed new output 
types, e.g., …:

• https://github.com/bitcoin/bips/blob/master/bip-0016.mediawiki
• https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki
• https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki
• https://github.com/bitcoin/bips/blob/master/bip-0360.mediawiki

… and the most mature BIP draft to introduce a PQC signature scheme:

• https://github.com/SHRINCS/shrincs-bip/blob/main/SHRINCS.md

Also interesting might be this discussion on PQC output types:

• https://delvingbitcoin.org/t/pqc-output-type-discussion/2749/40

Anyway, there is lots of work for people that want to dig into PQC for 
Bitcoin, but as you also recognized, it’s not a topic where you’ll start 
sharing your results after a day.

-M


On 2026-11-13 12:29, Hans Stringuer wrote:
> Hey Much,
> 
>    Thanks for the feedback. I see now that I need to do more research, 
> especially on the ongoing discussions. There are too many points I 
> should understand better and thanks for pointing them out, I will put 
> more work there before releasing anything.
>    I already thanked Claude, he helped me a lot. Just for the record I 
> do not believe that I will contribute with any breakthrough.
> 
> Cheers,
> Hans
> 
> Em sex., 13 de nov. de 2026 às 17:19, Murch <murch@murch.one> escreveu:
> 
>     Hello Hans,
> 
>     thank you for chiming in. Please note that discussion, research, and
>     development of PQC solutions for Bitcoin has been on-going for several
>     years. Please kindly catch yourself up on the status quo per the last
>     couple years of mailing list, Delving Bitcoin, in-person events, BIP
>     discussions, etc.
> 
>     On 2026-11-12 09:25, Hans Stringuer wrote:
>       > I'm sharing a draft BIP for a quantum-resistant address format for
>       > Bitcoin, developed as part of the safe-btc project
>       > (https://github.com/Zaenus/btc-safe <https://github.com/Zaenus/
>     btc-safe>).
> 
>     I’m afraid that yet another LLM-generated PQ proposal that you started
>     less than 48h ago is unlikely to be the breakthrough we have been
>     waiting for.
> 
>     Please thank Claude for its hard work.
> 
>     Cheers,
>     Murch
> 
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