Return-Path: Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 5CBB5C000B for ; Thu, 17 Feb 2022 14:51:09 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 354424027A for ; Thu, 17 Feb 2022 14:51:09 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org X-Spam-Flag: NO X-Spam-Score: -1.899 X-Spam-Level: X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: smtp2.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=blockstream-com.20210112.gappssmtp.com Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8K8m445IKjnk for ; Thu, 17 Feb 2022 14:51:06 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.8.0 Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) by smtp2.osuosl.org (Postfix) with ESMTPS id 99A5B40165 for ; Thu, 17 Feb 2022 14:51:06 +0000 (UTC) Received: by mail-qk1-x72e.google.com with SMTP id b22so4878861qkk.12 for ; Thu, 17 Feb 2022 06:51:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=blockstream-com.20210112.gappssmtp.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=6uGsUP2eb8T5FN2A6IGBW3HZ7R5B25q/KfFENqUlHXU=; b=YDKnwf5qXoyM5STBHkQEKlXC1EdVgjrqpODvywLQnuXHVTSsUfd9pDQGFiO/dC1EFy y00CdcHnIq/KRSMwXLsUbScLq9K/5SQ9Pp1vozoqZ1D1Sy+c8U6oq70HVkw5XMigMbsW EtqWgja3FYbyavHaD0jFSKPhirBljIZ3jU2NWZebdZ1UULsb2mVve0di9lkmrgPsXUBu vvAfym3AlYSqHCIWO8HpIwmTOJNTBLWP+WUisFygTitMoAAOB3P73nulHElCqUnF0B8Y VqvDJw1+Y/VczMNNBPVM3KpYRW149DGKeuubvXCSZw02BNR8tDVJG+FO9D8NiPwK0CtU 0KFA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=6uGsUP2eb8T5FN2A6IGBW3HZ7R5B25q/KfFENqUlHXU=; b=DxVu94WXI2vUCbYYsFOk27PQRv6d6lBX5+0hZvDlOTUduh4/ZB8P4DfA8sF6tA6VY+ h0Pj5Ma9ONdzCGe+NRKnO/ZhEc3wlRupEJyxIVJ+NESowD4XKbqfcO8xGJwNbII4jBpV zFS88NujlY/5g9HgmyFOKCS/JwDV/WesN9/V2hj9nedimMyOA7EgUBonsh7dbK0DdlcR ZRH6QfKqkUffXRSc33NcuYW0Cp8M/ccnGEzHTTPAs4Mpw5gAMtgqoiVxlhaLfA67Pwoc ufR1PS/8QSf6CFNpQoU2g2waid/uDg3th70SnkdNe7Jj3ajJdu3LQBBsUrV/TsJNBLiF 3QXg== X-Gm-Message-State: AOAM532riDfQxEDF05SF9O2k646VGTsJ8WkCSXKH7v7isJJaYOm/BIGC vbCBnMPpoaAMekAUKUZOtfkXmb8WpFjmTU6bRZYFkfJ3cRQ= X-Google-Smtp-Source: ABdhPJxzAywHiX3QaarWNmbIR8tIWvVehXTwrM3L87cWOImEzSg3Vt113ShvZ+Ezbr/jg/YT/ApJ76UYyaHgPXK8ShQ= X-Received: by 2002:ae9:ddc4:0:b0:60d:ed94:7aa9 with SMTP id r187-20020ae9ddc4000000b0060ded947aa9mr779014qkf.602.1645109465207; Thu, 17 Feb 2022 06:51:05 -0800 (PST) MIME-Version: 1.0 References: <20220128013436.GA2939@erisian.com.au> <20220201011639.GA4317@erisian.com.au> <20220217142727.GA1429@erisian.com.au> In-Reply-To: <20220217142727.GA1429@erisian.com.au> From: "Russell O'Connor" Date: Thu, 17 Feb 2022 09:50:53 -0500 Message-ID: To: Bitcoin Protocol Discussion Content-Type: multipart/alternative; boundary="0000000000004a734605d837e5f6" Subject: Re: [bitcoin-dev] TXHASH + CHECKSIGFROMSTACKVERIFY in lieu of CTV and ANYPREVOUT X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Feb 2022 14:51:09 -0000 --0000000000004a734605d837e5f6 Content-Type: text/plain; charset="UTF-8" On Thu, Feb 17, 2022 at 9:27 AM Anthony Towns wrote: > > I guess that's all partly dependent on thinking that, TXHASH isn't > great for tx introspection (especially without CAT) and, (without tx > introspection and decent math opcodes), DLCs already provide all the > interesting oracle behaviour you're really going to get... > You left out CSFSV's ability to do pubkey delegation. --0000000000004a734605d837e5f6 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Thu, Feb 17, 2022 at 9:27 AM Anthony Towns <aj@erisian.com.au> wrote:

I guess that's all partly dependent on thinking that, TXHASH isn't<= br> great for tx introspection (especially without CAT) and, (without tx
introspection and decent math opcodes), DLCs already provide all the
interesting oracle behaviour you're really going to get...

You left out CSFSV's ability to do pubkey deleg= ation.
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