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[79.135.106.31]) + by gmr-mx.google.com with ESMTPS id 2adb3069b0e04-54ad651c1bcsi433682e87.6.2025.03.26.10.14.34 + for <bitcoindev@googlegroups.com> + (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); + Wed, 26 Mar 2025 10:14:34 -0700 (PDT) +Received-SPF: pass (google.com: domain of darosior@protonmail.com designates 79.135.106.31 as permitted sender) client-ip=79.135.106.31; +Date: Wed, 26 Mar 2025 17:14:29 +0000 +To: Bitcoin Development Mailing List <bitcoindev@googlegroups.com> +From: "'Antoine Poinsot' via Bitcoin Development Mailing List" <bitcoindev@googlegroups.com> +Subject: [bitcoindev] Consensus Cleanup BIP draft +Message-ID: <uDAujRxk4oWnEGYX9lBD3e0V7a4V4Pd-c4-2QVybSZNcfJj5a6IbO6fCM_xEQEpBvQeOT8eIi1r91iKFIveeLIxfNMzDys77HUcbl7Zne4g=@protonmail.com> +Feedback-ID: 7060259:user:proton +X-Pm-Message-ID: 6ec7034d72138095f0f5153832a19df08862d35a +MIME-Version: 1.0 +Content-Type: text/plain; charset="UTF-8" +X-Original-Sender: darosior@protonmail.com +X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass + header.i=@protonmail.com header.s=protonmail3 header.b=XwC337GZ; + spf=pass (google.com: domain of darosior@protonmail.com designates + 79.135.106.31 as permitted sender) smtp.mailfrom=darosior@protonmail.com; + dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=protonmail.com +X-Original-From: Antoine Poinsot <darosior@protonmail.com> +Reply-To: Antoine Poinsot <darosior@protonmail.com> +Precedence: list +Mailing-list: list bitcoindev@googlegroups.com; contact bitcoindev+owners@googlegroups.com +List-ID: <bitcoindev.googlegroups.com> +X-Google-Group-Id: 786775582512 +List-Post: <https://groups.google.com/group/bitcoindev/post>, <mailto:bitcoindev@googlegroups.com> +List-Help: <https://groups.google.com/support/>, <mailto:bitcoindev+help@googlegroups.com> +List-Archive: <https://groups.google.com/group/bitcoindev +List-Subscribe: <https://groups.google.com/group/bitcoindev/subscribe>, <mailto:bitcoindev+subscribe@googlegroups.com> +List-Unsubscribe: <mailto:googlegroups-manage+786775582512+unsubscribe@googlegroups.com>, + <https://groups.google.com/group/bitcoindev/subscribe> +X-Spam-Score: -1.0 (-) + +Hi everyone, + +About two months ago i shared an update on this list about my (and others', really) work on the +Consensus Cleanup [0]. I am now ready to share a BIP draft for a Consensus Cleanup soft fork. + +The BIP draft can be found here: https://github.com/darosior/bips/blob/consensus_cleanup/bip-cc.md + +It includes the following fixes: +- a restriction on the timestamp of the first and last blocks of a difficulty adjustment period to + address the Timewarp and Murch-Zawy attacks; +- a limit on the number of legacy signature operations that may be executed in validating a single + transaction to address long block validation times; +- making 64 bytes transactions invalid to address weaknesses in the block Merkle tree construction; +- mandating coinbase transactions be timelocked to their block height to prevent future transaction + duplication without resorting to BIP30 validation. + +This BIP draws on the 2019 Great Consensus Cleanup proposal from Matt Corallo [1]. A number of +people contributed ideas, testing, data or useful discussions. This includes Ava Chow, Matt Corallo, +Mark Erhardt, Brian Groll, David A. Harding, Sjors Provoost, Anthony Towns, Greg Sanders, Chris +Stewart, Eric Voskuil, @0xb10c and others. + +Antoine Poinsot + +[0] https://gnusha.org/pi/bitcoindev/jiyMlvTX8BnG71f75SqChQZxyhZDQ65kldcugeIDJVJsvK4hadCO3GT46xFc7_cUlWdmOCG0B_WIz0HAO5ZugqYTuX5qxnNLRBn3MopuATI=@protonmail.com +[1] https://github.com/TheBlueMatt/bips/blob/7f9670b643b7c943a0cc6d2197d3eabe661050c2/bip-XXXX.mediawiki + +-- +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/uDAujRxk4oWnEGYX9lBD3e0V7a4V4Pd-c4-2QVybSZNcfJj5a6IbO6fCM_xEQEpBvQeOT8eIi1r91iKFIveeLIxfNMzDys77HUcbl7Zne4g%3D%40protonmail.com. + -- cgit v1.2.3