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Tue, 10 Feb 2026 12:49:23 -0800 (PST) X-Received: by 2002:a05:6808:1187:b0:462:dbf2:514f with SMTP id 5614622812f47-462fcb642a4mr8079599b6e.23.1770756562914; Tue, 10 Feb 2026 12:49:22 -0800 (PST) Received: by 2002:a05:690c:c251:b0:796:3c39:eb72 with SMTP id 00721157ae682-7963c3a3258ms7b3; Tue, 10 Feb 2026 12:47:24 -0800 (PST) X-Received: by 2002:a05:690c:992:b0:794:897:9039 with SMTP id 00721157ae682-7952ab06ca5mr119287607b3.34.1770756443280; Tue, 10 Feb 2026 12:47:23 -0800 (PST) Date: Tue, 10 Feb 2026 12:47:22 -0800 (PST) From: Mike Casey To: Bitcoin Development Mailing List Message-Id: <9336f5a4-5c28-4c1b-af29-a8462b7a9377n@googlegroups.com> Subject: [bitcoindev] Hourglass V2 Update MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_32294_1915270902.1770756442935" X-Original-Sender: mcasey0827@gmail.com 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: -0.5 (/) ------=_Part_32294_1915270902.1770756442935 Content-Type: multipart/alternative; boundary="----=_Part_32295_1659872196.1770756442935" ------=_Part_32295_1659872196.1770756442935 Content-Type: text/plain; charset="UTF-8" In response to feedback, the Hourglass proposal to mitigate against potential mass liquidation of P2PK funds has been enhanced to further limit spend amounts from such outputs to only 1 bitcoin per block. https://github.com/cryptoquick/bips/blob/hourglass-v2/bip-hourglass-v2.mediawiki Prior discussion of the original Hourglass proposal: https://groups.google.com/g/bitcoindev/c/zmg3U117aNc/m/lDCMs9j7EAAJ Thoughts & feedback welcome! -- You received this message because you are subscribed to the Google Groups "Bitcoin Development Mailing List" group. 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In response to feedback, the Hourglass proposal to mitigate against po= tential mass liquidation of P2PK funds has been enhanced to further limit s= pend amounts from such outputs to only 1 bitcoin per block.
https://github.com/cryptoquick/bips/blob/hourglass-v2/bip-hourglass= -v2.mediawiki

Prior discussion of the original Hou= rglass proposal:

Thoughts & feedback welcome!=

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