Bitcoin’s latest governance dispute intensified this week as the first block signaling support for a temporary soft fork designed to restrict arbitrary, non-monetary data in blockchain transactions was produced by the Ocean mining pool.
The proposal, officially assigned to BIP-110 after evolving from earlier versions, aims to reinstate strict limits on transaction sizes and arbitrary data fields for about a year. The idea is to curb what advocates see as “spam” uses of block space for non-financial data. They argue that uncontrolled data, including large registrations and OP_RETURN payloads, threatens the original blockchain’s role as a robust monetary infrastructure and burdens node operators.
The community remains deeply divided. Prominent critics, including Adam Back, CEO of Blockstream, have warned that consensual intervention could harm Bitcoin’s credibility and lead to preferential treatment of certain transactions in violation of the principle of neutral transaction capacity. He also questioned the level of support for the proposal, which he said increases the risk of a blockchain split.
To fuel the debate, a developer recently inscribed a 66 KB image in a single transaction on Bitcoin, an apparent pushback against BIP-110’s core claims and a demonstration of how large amounts of data can be encoded even without relying on OP_RETURN.
OP_RETURN and similar approaches are script instructions used to mark the outcome of a transaction as invalid for spending, allowing users to reuse this space to permanently embed arbitrary data – like text or images – directly into the blockchain.
As the controversy unfolds, it highlights the ongoing philosophical tensions within Bitcoin. Should the network aggressively defend a narrowly defined monetary goal or maintain maximum neutrality toward arbitrary uses of its base layer?
