From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 30 Jun 2026 03:01:24 -0700 Received: from mail-ot1-f64.google.com ([209.85.210.64]) by mail.fairlystable.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1weVHP-0006An-O3 for bitcoindev@gnusha.org; Tue, 30 Jun 2026 03:01:24 -0700 Received: by mail-ot1-f64.google.com with SMTP id 46e09a7af769-7e7624e584dsf6925147a34.2 for ; Tue, 30 Jun 2026 03:01:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlegroups.com; s=20251104; t=1782813677; x=1783418477; darn=gnusha.org; h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post :list-id:mailing-list:precedence:x-original-sender:mime-version :subject:references:in-reply-to:message-id:to:from:date:sender:from :to:cc:subject:date:message-id:reply-to; bh=U6noDDlAI+oQ7hOu/V6RzXRg18hJZKo2seoRsQmLTJE=; b=sfOZcLXbC/KH0IXDbBuOKLQ9wfnE/Lrf6d4Tw55moyRg3NJQx3FOhkZPjPmwZTkEaX Lr90XT/JxA9SqRWCNhP/HZM389wMDblcur2XW/WZ9LmC6AIO/BsQVoOGz8ErYJDnWB6m xQyfNh3EejtgwL4ktKmnp2ecxuThozdA3y8Y8yut+TItDZW5UtKtcR3F0+QTNOYCSoDh DfEBvAmqi8V5bobBUoaWQR5Nen0Nr84eG0EP8OFrmOsTgVFMb3mkfcB2QCHonX7hCssG sNqTtmZk8qFADnEUekz4ZHJ7rteLlYVkUm3fIBEUzVkpI46LuR3faSq/qZsOAnIEk+X+ R8Yw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1782813677; x=1783418477; darn=gnusha.org; h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post :list-id:mailing-list:precedence:x-original-sender:mime-version :subject:references:in-reply-to:message-id:to:from:date:from:to:cc :subject:date:message-id:reply-to; bh=U6noDDlAI+oQ7hOu/V6RzXRg18hJZKo2seoRsQmLTJE=; b=AJ0/3ebHidAsXvNMiq6ikPpPS7mJvYjGW9wg7B2NwegHjYMX0GloR9IEnE4mh8F8Dn GRFJjacY2fCMSNN0Gn5g287oWQJIImL6E3LnzUMybB9VoGHliPE2eK9xTqsCOaMIblm6 G4E7uN8dAeTya8bTiSEk01YLZQZZci6HyJMRSc9jZu+aDV+ZmC4L72bsVtPsJoTVs6di Of3Nvmpciep66/xJmSx2Oo84lU0na5K8JkIVAmCG6v8y/ZGTFxjCkHU428kMbY8H4sS+ BC9CX6y1aWCNvxGXrzOD3wUDdSx1MgZfJDKXTXUhu2LxwOD1H8fPkPmM0zGhpjJbbIto LQmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782813677; x=1783418477; h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post :list-id:mailing-list:precedence:x-original-sender:mime-version :subject:references:in-reply-to:message-id:to:from:date:x-beenthere :x-gm-message-state:sender:from:to:cc:subject:date:message-id :reply-to; bh=U6noDDlAI+oQ7hOu/V6RzXRg18hJZKo2seoRsQmLTJE=; b=WuqvpBS6+Vu5Idgkli5XeupvKD0bDLvDJIcDh0zDbfOj+Ynamd+Z0GLPSgqrEqxbLi 6Mq7eRGFUY7EjjTHSFMqZ2vnQ02cZgl9/qYFIDiwXRrD+KRffHfJyvh79bY6089RyPYU h76KBh1bgsj8BRyYLD5b9t4bcy6EfKcMREO901AURlbI8iqdWnHkRfR860cb83sHWUtL htvITIBRE/R8Q/JaP94Iw/W4KvgqiWq76oBGJTGMLPprxGqgz2UQNzE4Ao+D0rjA1UvO VHcHKgfO1sLqUZvPN+aGpBzNQK3a6SvWDbfycikB+3q8GF05AOMJzucyFGTqIVJQnaA6 u2rQ== Sender: bitcoindev@googlegroups.com X-Forwarded-Encrypted: i=1; AFNElJ8E4JJ6wrVXIp79/JmXYmooocuGtP49RPo2DkH3xXWGrsSj6tFyf3B1Jb17Zjgpqw7pPZtV3zf+7xji@gnusha.org X-Gm-Message-State: AOJu0YwBTmR+vS3Qs4bWCyDiQl0y14/mQRHs1biAJR9du+g4C1uIQxxf UzEqRj4pY/hKCHVzmRBrcsKldP2udedGQ5iqhuNt9fJT1G8G4RgGG+Rt X-Received: by 2002:a05:6830:3908:b0:7e6:deb1:485b with SMTP id 46e09a7af769-7e9ec706523mr2804320a34.16.1782813677208; Tue, 30 Jun 2026 03:01:17 -0700 (PDT) X-BeenThere: bitcoindev@googlegroups.com; h="AX0PUUfsrFVu8dcfuFcq9jLvgry+yOWgbF7PrJ6BteeT0qyWCQ==" Received: by 2002:a05:6871:e8c5:10b0:440:fd1e:ce26 with SMTP id 586e51a60fabf-446dfaf4d69ls4081149fac.2.-pod-prod-04-us; Tue, 30 Jun 2026 03:01:12 -0700 (PDT) X-Received: by 2002:a05:6808:30a9:b0:495:f519:70ff with SMTP id 5614622812f47-495f519736bmr1207774b6e.18.1782813672588; Tue, 30 Jun 2026 03:01:12 -0700 (PDT) Received: by 2002:a05:690c:e64d:b0:7ba:f1b3:9504 with SMTP id 00721157ae682-80ba40ed445ms7b3; Tue, 30 Jun 2026 01:19:07 -0700 (PDT) X-Received: by 2002:a05:690c:e373:b0:80c:72a1:fca3 with SMTP id 00721157ae682-810d7ebe061mr31574797b3.16.1782807546269; Tue, 30 Jun 2026 01:19:06 -0700 (PDT) Date: Tue, 30 Jun 2026 01:19:05 -0700 (PDT) From: "Nuh.dev" To: Bitcoin Development Mailing List Message-Id: In-Reply-To: References: Subject: [bitcoindev] Re: [BIP Proposal] Strict circular economy within the Bitcoin network MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_155032_2072256732.1782807545906" X-Original-Sender: Ar.Nazeh@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_155032_2072256732.1782807545906 Content-Type: multipart/alternative; boundary="----=_Part_155033_1395685004.1782807545906" ------=_Part_155033_1395685004.1782807545906 Content-Type: text/plain; charset="UTF-8" Expiring UTXOs might be a step too far, especially when other projects considered state rent, where you pay more fees when you try to spend an old UTXO. Of course some UTXOs may never be spent, but that only means they are effectively out of circulation, giving more value to the mining rewards, whether these rewards are subsidy or fees. So miners win whether these old UTXOs move or don't, and if they move, miners eventually get rewarded for the marginal cost of storing these UTXOs for so long. On Sunday, 28 June 2026 at 16:54:25 UTC+3 Ricard wrote: > Dear list, > > This BIP proposes a consensus rule update to implement a strict circular > economy within the Bitcoin network, keeping the 21 million maximum supply > limit permanently intact. > > An expiration limit is introduced for Unspent Transaction Outputs (UTXOs). > UTXOs that exceed a maximum age threshold of `MAX_UTXO_AGE` (e.g., > 1,048,576 blocks) will be deemed invalid for spending and pruned from the > nodes' active Chainstate database. The nominal value of these expired > satoshis will not be injected into immediate block rewards. Instead, they > will be reintroduced into the pending emission reserve, dynamically > extending the duration of halving epochs to guarantee a perpetual block > subsidy without adding inflation. > > https://github.com/bip-proposer/bitcoin-infinity/blob/main/infinity.md > > I appreciate discussion on this proposal. > > Best, > Ricard. > -- 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/f857d6e6-2be4-4b94-bc26-a46d8d6654f9n%40googlegroups.com. ------=_Part_155033_1395685004.1782807545906 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Expiring UTXOs might be a step too far, especially when other projects cons= idered state rent, where you pay more fees when you try to spend an old UTX= O. Of course some UTXOs may never be spent, but that only means they are ef= fectively out of circulation, giving more value to the mining rewards, whet= her these rewards are subsidy or fees. So miners win whether these old UTXO= s move or don't, and if they move, miners eventually get rewarded for the m= arginal cost of storing these UTXOs for so long.=C2=A0

On Sunday, 28 June= 2026 at 16:54:25 UTC+3 Ricard wrote:
Dear list,

This BIP proposes a = consensus rule update to implement a strict circular economy within the Bit= coin network, keeping the 21 million maximum supply limit permanently intac= t.

An expiration limit is introduced for Unspent Transaction Outputs= (UTXOs). UTXOs that exceed a maximum age threshold of `MAX_UTXO_AGE` (e.g.= , 1,048,576 blocks) will be deemed invalid for spending and pruned from the= nodes' active Chainstate database. The nominal value of these expired = satoshis will not be injected into immediate block rewards. Instead, they w= ill be reintroduced into the pending emission reserve, dynamically extendin= g the duration of halving epochs to guarantee a perpetual block subsidy wit= hout adding inflation.


I appreciate discussion on= this proposal.

Best,
Ricard.

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