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| author | ZmnSCPxj <ZmnSCPxj@protonmail.com> | 2021-10-16 23:23:15 +0000 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2021-10-16 23:23:36 +0000 |
| commit | e5bd0bcff962896ba552e23b07c26bc0ba35fdcd (patch) | |
| tree | 97704dc74d84514229e758a84902b6cc181946cc | |
| parent | 7db2dd3a891eff734eb127384a966c4301182925 (diff) | |
| download | pi-bitcoindev-e5bd0bcff962896ba552e23b07c26bc0ba35fdcd.tar.gz pi-bitcoindev-e5bd0bcff962896ba552e23b07c26bc0ba35fdcd.zip | |
Re: [bitcoin-dev] Year 2038 problem and year 2106 chain halting
| -rw-r--r-- | d1/5588a4e1569a164ac79fd02aea0d5eb5337637 | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/d1/5588a4e1569a164ac79fd02aea0d5eb5337637 b/d1/5588a4e1569a164ac79fd02aea0d5eb5337637 new file mode 100644 index 000000000..70d56862b --- /dev/null +++ b/d1/5588a4e1569a164ac79fd02aea0d5eb5337637 @@ -0,0 +1,102 @@ +Return-Path: <ZmnSCPxj@protonmail.com> +Received: from smtp1.osuosl.org (smtp1.osuosl.org [IPv6:2605:bc80:3010::138]) + by lists.linuxfoundation.org (Postfix) with ESMTP id AB042C000D + for <bitcoin-dev@lists.linuxfoundation.org>; + Sat, 16 Oct 2021 23:23:36 +0000 (UTC) +Received: from localhost (localhost [127.0.0.1]) + by smtp1.osuosl.org (Postfix) with ESMTP id 9B9098332A + for <bitcoin-dev@lists.linuxfoundation.org>; + Sat, 16 Oct 2021 23:23:36 +0000 (UTC) +X-Virus-Scanned: amavisd-new at osuosl.org +X-Spam-Flag: NO +X-Spam-Score: -1.601 +X-Spam-Level: +X-Spam-Status: No, score=-1.601 tagged_above=-999 required=5 + tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, + DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, + FROM_LOCAL_NOVOWEL=0.5, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] + autolearn=ham autolearn_force=no +Authentication-Results: smtp1.osuosl.org (amavisd-new); + dkim=pass (1024-bit key) header.d=protonmail.com +Received: from smtp1.osuosl.org ([127.0.0.1]) + by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id lC6WZZpRhMH1 + for <bitcoin-dev@lists.linuxfoundation.org>; + Sat, 16 Oct 2021 23:23:35 +0000 (UTC) +X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 +Received: from mail-4327.protonmail.ch (mail-4327.protonmail.ch [185.70.43.27]) + by smtp1.osuosl.org (Postfix) with ESMTPS id AD17483313 + for <bitcoin-dev@lists.linuxfoundation.org>; + Sat, 16 Oct 2021 23:23:35 +0000 (UTC) +Received: from mail-0301.mail-europe.com (mail-0301.mail-europe.com + [188.165.51.139]) + (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) + key-exchange X25519 server-signature RSA-PSS (4096 bits)) + (No client certificate requested) + by mail-4321.protonmail.ch (Postfix) with ESMTPS id 4HWzj13P2Cz4x4rl + for <bitcoin-dev@lists.linuxfoundation.org>; + Sat, 16 Oct 2021 23:23:33 +0000 (UTC) +Authentication-Results: mail-4321.protonmail.ch; + dkim=pass (1024-bit key) header.d=protonmail.com header.i=@protonmail.com + header.b="EPg9c4wu" +Date: Sat, 16 Oct 2021 23:23:15 +0000 +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; + s=protonmail; t=1634426602; + bh=AffZz6ohRc9sTzrhqDKhccgxOFGzsSMCGfK2hhEf0VM=; + h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; + b=EPg9c4wuaVYCsjVBzv9esIjdXOAMUnExKn9E2liP1G73WE9DbtqvJsBcqMHw9Cp2c + 1FGAUxhIBZLgf9kXJAhpIg3opD5nwOdIBBgG2kyKtxecijqPRj0eQ3izcuS9gzexuV + hIYzPysqGjzJ1a0Fc9MgYEiXWdiHNEA93bZcJPAE= +To: "vjudeu@gazeta.pl" <vjudeu@gazeta.pl> +From: ZmnSCPxj <ZmnSCPxj@protonmail.com> +Reply-To: ZmnSCPxj <ZmnSCPxj@protonmail.com> +Message-ID: <eAo_By_Oe44ra6anVBlZg2UbfKfzhZ1b1vtaF0NuIjdJcB_niagHBS-SoU2qcLzjDj8Kuo67O_FnBSuIgskAi2_fCsLE6_d4SwWq9skHuQI=@protonmail.com> +In-Reply-To: <143903239-0c7634127ba6ddee7e69b14740b993cd@pmq3v.m5r2.onet> +References: <143903239-0c7634127ba6ddee7e69b14740b993cd@pmq3v.m5r2.onet> +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: quoted-printable +Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org> +Subject: Re: [bitcoin-dev] Year 2038 problem and year 2106 chain halting +X-BeenThere: bitcoin-dev@lists.linuxfoundation.org +X-Mailman-Version: 2.1.15 +Precedence: list +List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org> +List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe> +List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/> +List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org> +List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help> +List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe> +X-List-Received-Date: Sat, 16 Oct 2021 23:23:36 -0000 + +Good morning vjudeu, + +> > What happens if a series of blocks has a timestamp of 0xFFFFFFFF at the= + appropriate time? +> +> The chain will halt for all old clients, because there is no 32-bit value= + greater than 0xffffffff. +> +> > 1. Is not violated, since "not lower than" means "greater than or equa= +l to" +> +> No, because it has to be strictly "greater than" in the Bitcoin Core sour= +ce code, it is rejected when it is "lower or equal to", see:https://github.= +com/bitcoin/bitcoin/blob/6f0cbc75be7644c276650fd98bfdb6358b827399/src/valid= +ation.cpp#L3089-L3094 + +Then starting at Unix Epoch 0x80000000, post-softfork nodes just increment = +the timestamp by 1 on each new block. +This just kicks the can since that then imposes a limit on the maximum numb= +er of blocks, but at least the unit is now ~10 minutes instead of 1 second,= + a massive x600 increase in the amount of time we are forced to hardfork. + +On the other hand, this does imply that the difficulty calculation will bec= +ome astronomically and ludicrously high, since pre-softfork nodes will thin= +k that blocks are arriving at the rate of 1 per second, so ... + +Regards, +ZmnSCPxj + |