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[2a00:1450:4864:20::632]) by gmr-mx.google.com with ESMTPS id 2adb3069b0e04-5593c7e7cedsi302573e87.2.2025.07.15.12.08.11 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 15 Jul 2025 12:08:11 -0700 (PDT) Received-SPF: pass (google.com: domain of lucasbarbosafurtado0@gmail.com designates 2a00:1450:4864:20::632 as permitted sender) client-ip=2a00:1450:4864:20::632; Received: by mail-ej1-x632.google.com with SMTP id a640c23a62f3a-ae04d3d63e6so1128755066b.2 for ; Tue, 15 Jul 2025 12:08:11 -0700 (PDT) X-Gm-Gg: ASbGnct2IaeJPylkho6Jy31h7kotRP8nOd5a0K3nOzRtw6+PRlWmFqpjGvhtBFqSetF rMMDWjknxQoS28lpiRHDBs3Zz2xBDHvS3k30FrlO69g6MVz+UF7RS3s6gZpwfWqhXn0aRBUDL3b jj3cDfxOqglMUklQVnVAh30dG15DS4ZW+4xmNnzIi78R4s7rv6nmOT6fc2JuZ16sJqoF8hlzgMp OP0aAUVw9N3/u5yGaSnwP8pPWWlgrncMcqqhGzftg== X-Received: by 2002:a17:907:6e8c:b0:ae3:bf5f:ca20 with SMTP id a640c23a62f3a-ae9c99877efmr56688166b.8.1752606490352; Tue, 15 Jul 2025 12:08:10 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Lucas Barbosa Date: Tue, 15 Jul 2025 16:07:59 -0300 X-Gm-Features: Ac12FXxs6bqXMOIUv9eAKbWJTolc5xcyX_Z1K6c7an16ESAllGjZiRJiSi4DhRg Message-ID: Subject: Re: [bitcoindev] [BIP Proposal] Proof-of-Activity Reclamation (PoAR) To: Donald Dienst Cc: Bitcoin Development Mailing List Content-Type: multipart/alternative; boundary="00000000000049e1150639fc7f04" X-Original-Sender: lucasbarbosafurtado0@gmail.com X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=UDUFWzcX; spf=pass (google.com: domain of lucasbarbosafurtado0@gmail.com designates 2a00:1450:4864:20::632 as permitted sender) smtp.mailfrom=lucasbarbosafurtado0@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com; dara=pass header.i=@googlegroups.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 (/) --00000000000049e1150639fc7f04 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable This type of proposal, is fundamentally incompatible with Bitcoin's ethos for several reasons. 1. Sovereignty and Immutability of Property In Bitcoin, ownership of a coin is guaranteed exclusively by possession of the corresponding private key. The idea that funds can be "reclaimed" or "recycled" after a period of inactivity amounts to automated confiscation, albeit disguised as economic efficiency. This undermines trust in the inviolability of property=E2=80=94something sacred to long-term users. 2. The 21 Million Rule is Inviolable, but the Supply is also Deterministic Although the proposal claims to respect the 21 million cap, it alters the nature of supply distribution. The fact that UTXOs are lost is part of the economic reality of BTC=E2=80=94the actual circulating supply is lower than= the theoretical one, and this is priced in. Attempting to "correct" this is a form of monetary intervention without legitimate authority in the system. 3. Perverse Precedent and Attack on Finality Allowing a UTXO to be reused after N years sets a very dangerous precedent: ownership of BTC is no longer absolute and becomes conditional on activity. This directly attacks the finality of transactions and the ledger=E2=80=94o= ne of the pillars of the system. 4. Negative Impact on Long-Term Trust People who store BTC for the future=E2=80=94whether for decades, for reason= s of inheritance, security, or trust in the network=E2=80=94would lose the guara= ntee that their BTC will remain untouched. This reduces Bitcoin's perceived value as a solid and reliable store of value. 5. This Has Already Been Considered and Rejected Similar proposals (such as coin expiry or reclaimable outputs) have been discussed in the past, and the Bitcoin community has consistently rejected them based on the above principles. Em ter., 15 de jul. de 2025, 15:26, 'Donald Dienst' via Bitcoin Development Mailing List escreveu: > Dear Bitcoin developers, > > I would like to propose a new BIP titled "Proof-of-Activity Reclamation > (PoAR)," which aims to address the long-term economic effects of lost and > abandoned UTXOs. > > This proposal introduces a fully automated and rule-based mechanism to > gradually recycle coins that have been provably inactive for over 20 year= s. > These coins are returned to the undistributed pool and slowly reintroduce= d > via future block rewards=E2=80=94extending miner incentives while respect= ing the 21 > million BTC cap. > > You can view the full proposal here: > https://gist.github.com/Brandchatz/56c39d289db9e56190c13922850815b8 > > I welcome your thoughts, suggestions, and critiques. > > Best regards, > Donald Dienst > dddienst@protonmail.com > > -- > 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/a186c724-eef7-4964-9aba-85ae= 9cce2249n%40googlegroups.com > > . > --=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/= CAPbyeOHQcehNYU26W4rC_wxTpfrZSCBgMuCecmBqHpOgETYSsA%40mail.gmail.com. --00000000000049e1150639fc7f04 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
This type of proposal, is fundamentally= incompatible with Bitcoin's ethos for several reasons.

1. Sovereignty and Immutability of Pr= operty
In Bitcoin, ownership of a coin is guaranteed= exclusively by possession of the corresponding private key. The idea that = funds can be "reclaimed" or "recycled" after a period o= f inactivity amounts to automated confiscation, albeit disguised as economi= c efficiency. This undermines trust in the inviolability of property=E2=80= =94something sacred to long-term users.

2. The 21 Million Rule is Inviolable, but the Supply is als= o Deterministic
Although the proposal claims to resp= ect the 21 million cap, it alters the nature of supply distribution. The fa= ct that UTXOs are lost is part of the economic reality of BTC=E2=80=94the a= ctual circulating supply is lower than the theoretical one, and this is pri= ced in. Attempting to "correct" this is a form of monetary interv= ention without legitimate authority in the system.
<= br>
3. Perverse Precedent and Attack on Finality
Allowing a UTXO to be reused after N years sets a very = dangerous precedent: ownership of BTC is no longer absolute and becomes con= ditional on activity. This directly attacks the finality of transactions an= d the ledger=E2=80=94one of the pillars of the system.

4. Negative Impact on Long-Term Trust
<= div dir=3D"auto">People who store BTC for the future=E2=80=94whether for de= cades, for reasons of inheritance, security, or trust in the network=E2=80= =94would lose the guarantee that their BTC will remain untouched. This redu= ces Bitcoin's perceived value as a solid and reliable store of value.

5. This Has Already Been = Considered and Rejected
Similar proposals (such as c= oin expiry or reclaimable outputs) have been discussed in the past, and the= Bitcoin community has consistently rejected them based on the above princi= ples.

Em ter., 15 de jul. de 2025, 15:26, 'D= onald Dienst' via Bitcoin Development Mailing List <bitcoindev@googlegroups.com> escreveu= :
Dear Bitcoin developers,

I= would like to propose a new BIP titled "Proof-of-Activity Reclamation= (PoAR)," which aims to address the long-term economic effects of lost= and abandoned UTXOs.

This proposal introduces a fully automated and= rule-based mechanism to gradually recycle coins that have been provably in= active for over 20 years. These coins are returned to the undistributed poo= l and slowly reintroduced via future block rewards=E2=80=94extending miner = incentives while respecting the 21 million BTC cap.

You can view the= full proposal here:
https://g= ist.github.com/Brandchatz/56c39d289db9e56190c13922850815b8

I wel= come your thoughts, suggestions, and critiques.

Best regards, =C2=A0=
Donald Dienst =C2=A0
dddienst@protonmail.com

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