Bitcoin Improvement Proposal 110 (BIP 110) is facing heavyweight opposition from two of the industry's most influential voices. Adam Back, inventor of Hashcash and a foundational figure in cryptography, along with Michael Saylor, executive chairman of MicroStrategy and the largest institutional Bitcoin holder, have separately warned that pushing the proposal without broad consensus could fracture the community and potentially lead to a hard fork.
What BIP 110 Tries to Do
BIP 110 introduces stricter rules on what miners and nodes may accept into blocks, specifically targeting non-standard data such as inscriptions that some view as blockchain bloat. Supporters argue that freeing block space from such data ensures room for legitimate financial transactions and reduces network congestion. Critics, however, see a dangerous precedent: the protocol would begin policing transaction content, violating Bitcoin's long-standing principle of neutrality toward fee-paying, protocol-compliant data.
Adam Back put it bluntly: BIP 110 “tries to police other people’s transactions and creates a risk of dividing the network if consensus is not reached.” He contended that implementing consensus changes without broad assent risks invalidating transactions that are otherwise entirely valid under existing rules.
Michael Saylor echoed that sentiment. He warned that turning the debate over so-called “spam” transactions into a formal consensus change sets a precedent for rejecting previously valid, fee-paying transactions. Saylor criticized BIP 110 for making the spam debate “a fundamental consensus dispute” that could invalidate legitimate network activity. For him, Bitcoin should remain neutral about what data users choose to include.
Consensus Gap and Historical Context
While some miners and node operators have expressed limited support for BIP 110's goals, widespread backing from developers, mining pools, exchanges, and other ecosystem stakeholders is lacking. Bitcoin's upgrade history—from block size debates through Taproot and Ordinals—shows that meaningful changes require near-universal community buy-in. Without it, the proposal either stalls or risks a chain split. Analysts point out that unresolved disagreements in the past have created competing Bitcoin forks.
| BIP 110 | Main Supporters | Main Critics | Core Issue |
|---|---|---|---|
| Restricts non-standard data in blocks | Some miners, node operators | Adam Back, Michael Saylor | Consensus vs. freedom of transaction content |
Market and Community Watch
With two influential figures leading the charge against BIP 110, the proposal's path to activation appears narrow. The outcome of this debate will likely shape how the Bitcoin network navigates future proposals involving transaction filtering and content restrictions. For now, BIP 110 remains a flashpoint, underscoring the perennial tension in Bitcoin's governance: how to evolve without compromising the neutrality and censorship resistance that define it.