[BIP Proposal] Limit ScriptPubkey Size >= 520 Bytes Consensus.

Posted by Guus Ellenkamp

Oct 5, 2025/09:59 UTC

The discussion centers on the debate over the necessity and implications of increasing the OP_RETURN output size in the Bitcoin protocol. A key point raised questions the rationale behind proposing an increase to the OP_RETURN limit, especially given its controversial nature within the community and the observation that there are relatively few instances of OP_RETURN outputs exceeding 144 bytes. This suggests that despite current limitations, users inclined to utilize larger OP_RETURN sizes have found ways to circumvent these constraints.

The conversation reflects a broader dialogue on balancing technical innovation with the need for consensus within the Bitcoin development ecosystem. The underlying concern is whether making such a change, which appears to affect a small portion of transactions, justifies potentially contentious debates and the effort required to implement and adopt new standards. This situation underscores the challenges inherent in evolving a decentralized digital currency while maintaining its foundational principles and ensuring broad-based support among its stakeholders.

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