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[79.135.106.103]) by gmr-mx.google.com with ESMTPS id 4fb4d7f45d1cf-68e65c5f125si310557a12.8.2026.06.08.16.01.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jun 2026 16:01:19 -0700 (PDT) Received-SPF: pass (google.com: domain of opusluxofficial@proton.me designates 79.135.106.103 as permitted sender) client-ip=79.135.106.103; Date: Mon, 08 Jun 2026 23:01:12 +0000 To: "bitcoindev@googlegroups.com" From: "'opus lux' via Bitcoin Development Mailing List" Subject: [bitcoindev] Re: [BIP] P2WOTS: 64 Slot Winternitz UTXO's (witness version three) Message-ID: <3fqrs3Vli-C23u7QSQM9h4xVBaow5h_I5YfiVyCY3ij5qMKKYgQ3gcYmhf1Fd1TIHRypfEquAOwkWfn6q-wBvOdzcJ1XfYMP0oduByPl-So=@proton.me> In-Reply-To: References: Feedback-ID: 194750642:user:proton X-Pm-Message-ID: a6983bd78b9fc838edbc5ed37a3dc73f8d7f9959 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="b1=_ekY4Tbbyv1eZVphGB66Ys1Tuf8OiExSJqAyn4tyXng" X-Original-Sender: opusluxofficial@proton.me X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@proton.me header.s=protonmail header.b=Q7MqYOIL; spf=pass (google.com: domain of opusluxofficial@proton.me designates 79.135.106.103 as permitted sender) smtp.mailfrom=opusluxofficial@proton.me; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=proton.me X-Original-From: opus lux Reply-To: opus lux Precedence: list Mailing-list: list bitcoindev@googlegroups.com; contact bitcoindev+owners@googlegroups.com List-ID: X-Google-Group-Id: 786775582512 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Score: -1.0 (-) --b1=_ekY4Tbbyv1eZVphGB66Ys1Tuf8OiExSJqAyn4tyXng Content-Type: text/plain; charset="UTF-8" To clarify, this proposal has been under active discussion on Delving Bitcoin for several weeks prior to this mailing list post. Including replies from Murch: https://delvingbitcoin.org/t/p2wots-post-quantum-utxo-winternitz-signatures/2530 A live signet with full P2WOTS support is live for testing and a wallet demo can be interacted with from my website. I will resubmit the BIP pull request once sufficient mailing list discussion has taken place here as well. https://block_opuslux.ar.io Happy to answer any technical questions! Regards, Opus Lux On Monday, June 8th, 2026 at 4:07 PM, opus lux wrote: > Hi all, > > I's like to officially propose P2WOTS (Pay-to-Winternitz-One-Time-Signature), a new native Bitcoin output type using witness version three. It provides post quantum security using only SHA-256 and contains no elliptic curve key material anywhere. > > The 34 byte scriptPubKey commits to a Merkle Key Tree over 64 independent WOTS+ one time key pairs. > This construction directly solves the WOTS+ one time signing limitation, each spend consumes a fresh independent slot key, making address reuse safe without ever violating the one time property. > > BIP draft PR: > https://github.com/bitcoin/bips/pull/2194 > > Looking forward to technical feedback from the community. > > Regards,Opus Lux -- You received this message because you are subscribed to the Google Groups "Bitcoin Development Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to bitcoindev+unsubscribe@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/3fqrs3Vli-C23u7QSQM9h4xVBaow5h_I5YfiVyCY3ij5qMKKYgQ3gcYmhf1Fd1TIHRypfEquAOwkWfn6q-wBvOdzcJ1XfYMP0oduByPl-So%3D%40proton.me. --b1=_ekY4Tbbyv1eZVphGB66Ys1Tuf8OiExSJqAyn4tyXng Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
To clarify,= this proposal has been under active discussion on Delving Bitcoin for seve= ral weeks prior to this mailing list post. Including replies from Murch:&nb= sp;

A live signet with full P2WOTS support is live for testing a= nd a wallet demo can be interacted with from my website. I will resubmit th= e BIP pull request once sufficient mailing list discussion has taken place = here as well.

https://block_opuslux.ar.io

Happy to answer any technical questions!
<= div style=3D"font-family: Arial, sans-serif; font-size: 14px;">
Regards,
Opus Lux

On Monday, June 8th, 2026 at 4:07 PM, opus lux <opusluxofficial@= proton.me> wrote:
Hi all,

I's like to officially propose P2W= OTS (Pay-to-Winternitz-One-Time-Signature), a new native Bitcoin output typ= e using witness version three. It provides post quantum security using only= SHA-256 and contains no elliptic curve key material anywhere.
The 34 byte scriptPubKey commits to a Merkle Key Tree over 64 = independent WOTS+ one time key pairs.
This construction directly = solves the WOTS+ one time signing limitation, each spend consumes a fresh i= ndependent slot key, making address reuse safe without ever violating the o= ne time property.

BIP draft PR:

Looking forward to t= echnical feedback from the community.

Regards,Opus Lux

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