Re: The Cat, BIP draft discussion.

Dec 11 - Dec 13, 2025

  • The discourse concerning spam mitigation within the Bitcoin network is multifaceted, touching upon both technical and philosophical considerations.

A key point of discussion is the proposal known as "The Cat," aimed at addressing the issue of unspent transaction outputs (UTXOs) that are considered non-monetary or spammy by deleting them from the blockchain. This approach has sparked debate regarding its effectiveness and its alignment with Bitcoin's decentralized, censorship-resistant ethos. Critics argue that such measures might not only be ineffectual but could also contradict the foundational principles of Bitcoin, suggesting that any form of anti-spam measure, however imperfect, may still influence user behavior by disincentivizing frivolous or malicious use of network resources.

The debate extends to specific proposals targeting transactions associated with non-fungible tokens (NFTs) on the Bitcoin network, reflecting concerns over how these transactions impact the UTXO set and overall network efficiency. The potential for proposed changes to deter NFT-related activities and drive them to other platforms highlights the tension between maintaining network integrity and supporting innovation. Furthermore, discussions around asset valuation, particularly the distinction between perceived and actual value of assets like NFTs, underscore the complexity of addressing spam without adversely affecting legitimate users and uses.

Greg Maxwell's input offers a nuanced perspective on managing unspendable outputs and Ordinal inscriptions within the UTXO set. His comments reflect an understanding of the delicate balance required to address technical challenges without compromising Bitcoin's core values. By suggesting specific transaction validation rules, Maxwell proposes a method to mitigate the potential issues posed by Ordinals in a way that respects property rights and the decentralized nature of Bitcoin.

The conversation also touches upon existing practices for handling provably unspendable outputs and explores alternative approaches to regulating undesirable transactions through economic incentives rather than outright prohibition. The idea of imposing a minimum fee for certain transactions suggests a strategic use of the network's fee market as a regulatory mechanism, aiming to limit controversial activities while adhering to the principles of decentralization.

Significant concerns arise regarding protocol modifications to exclude unspendable outputs from the UTXO set and the implications of treating Ordinals differently at a consensus level. The risk of undermining Bitcoin's integrity and functionality through such differentiation is highlighted, alongside the broader issue of how changes to consensus rules can affect the stability and trustworthiness of the network.

Finally, the dialogue acknowledges the challenges of proposing measures that could inadvertently impact digital asset holdings beyond Bitcoins, emphasizing the need for a comprehensive understanding of the potential consequences of any protocol changes. The discussion encapsulates the ongoing struggle within the Bitcoin community to find a balance between innovation and regulation, efficiency and ideology, underscoring the importance of thoughtful deliberation and collective decision-making in the network's evolution.

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Thread Summary (6 replies)

Dec 11 - Dec 13, 2025

Message History

7 messages

Bitcoin MechanicOriginal Post
Dec 11, 2025/20:54 UTC
TwoLargePizzas
Dec 12, 2025/01:49 UTC
Jonathan Voss
Dec 12, 2025/17:13 UTC
Greg Maxwell
Dec 12, 2025/23:40 UTC
Melvin Carvalho
Dec 13, 2025/03:54 UTC
Ataraxia
Dec 13, 2025/07:07 UTC
Greg Maxwell
Dec 13, 2025/15:02 UTC
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