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[202.12.124.150]) by gmr-mx.google.com with ESMTPS id 98e67ed59e1d1-309ef0fa688si778522a91.3.2025.04.28.11.50.48 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Apr 2025 11:50:48 -0700 (PDT) Received-SPF: pass (google.com: domain of sjors@sprovoost.nl designates 202.12.124.150 as permitted sender) client-ip=202.12.124.150; Received: from phl-compute-01.internal (phl-compute-01.phl.internal [10.202.2.41]) by mailfout.stl.internal (Postfix) with ESMTP id 9CA041140259; Mon, 28 Apr 2025 14:50:47 -0400 (EDT) Received: from phl-mailfrontend-01 ([10.202.2.162]) by phl-compute-01.internal (MEProxy); Mon, 28 Apr 2025 14:50:47 -0400 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgddviedujeduucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdggtfgfnhhsuhgsshgtrhhisggv pdfurfetoffkrfgpnffqhgenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpih gvnhhtshculddquddttddmnecujfgurheptggguffhjgffvefgkfhfvffosehtqhhmtdhh tddvnecuhfhrohhmpefujhhorhhsucfrrhhovhhoohhsthcuoehsjhhorhhssehsphhroh hvohhoshhtrdhnlheqnecuggftrfgrthhtvghrnhepveeklefgfffggfffleefhffgtddv udfftdduteeijedvjeevkeekgeffjeetfeejnecuvehluhhsthgvrhfuihiivgeptdenuc frrghrrghmpehmrghilhhfrhhomhepshhjohhrshesshhprhhovhhoohhsthdrnhhlpdhn sggprhgtphhtthhopeefpdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehsrghinh htfigvnhhhrghosehgmhgrihhlrdgtohhmpdhrtghpthhtohepsghithgtohhinhguvghv sehgohhoghhlvghgrhhouhhpshdrtghomhdprhgtphhtthhopehjrghmvghsohhnrdhloh hpphesghhmrghilhdrtghomh X-ME-Proxy: Feedback-ID: ie5e042df:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 28 Apr 2025 14:50:46 -0400 (EDT) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.500.181.1.5\)) Subject: Re: [bitcoindev] Unbreaking testnet4 From: Sjors Provoost In-Reply-To: Date: Mon, 28 Apr 2025 20:50:35 +0200 Cc: Bitcoin Development Mailing List , Jameson Lopp Content-Transfer-Encoding: quoted-printable Message-Id: <80B4FDA8-900E-479F-97B7-EE2AB37D0231@sprovoost.nl> References: <5c13e130-aaa2-4866-be26-7498100e868b@murch.one> <7c6800f0-7b77-4aca-a4f9-2506a2410b29@murch.one> <672cb527-9005-46fc-be2c-4508d39cfd7dn@googlegroups.com> <8E819BCF-EEAE-4F10-89A1-FA3FDE0F67E3@sprovoost.nl> To: Saint Wenhao X-Mailer: Apple Mail (2.3826.500.181.1.5) X-Original-Sender: sjors@sprovoost.nl X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@sprovoost.nl header.s=fm1 header.b=DRMuIpJE; dkim=pass header.i=@messagingengine.com header.s=fm3 header.b=jQqCZ7tT; spf=pass (google.com: domain of sjors@sprovoost.nl designates 202.12.124.150 as permitted sender) smtp.mailfrom=sjors@sprovoost.nl; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=sprovoost.nl 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: -0.8 (/) > Op 28 apr 2025, om 20:15 heeft Saint Wenhao het v= olgende geschreven: >=20 > > Which means that in practice, instead of seeing huge or overflowed amou= nts in UTXOs, we will probably see a lot of repeated entries in the UTXO se= t, holding MAX_MONEY each. >=20 > Now I applied "doubling" patch in my local regtest, and I can confirm it.= After 2849 blocks, when trying to mine block number 2850, the UTXO amount = exceeded 21 million coins, and then it failed. Thanks, that's useful feedback. Note that in regtest the nSubsidyHalvingInterval is 150 blocks instead of 2= 10,000 for mainnet and the current testnets, so the problem happens 1,400 t= imes faster. On an actual testnet5 this would happen at block 3,999,000 ins= tead, which is 75 years from now. [...] > However, after manually crafting a block with 21 million coins, it succee= ded: In the unlikely event this hypothetical testnet would still be around, we c= ould modify the miner code to not go over this limit. - Sjors=20 --=20 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 e= mail to bitcoindev+unsubscribe@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/= 80B4FDA8-900E-479F-97B7-EE2AB37D0231%40sprovoost.nl.