Block 7 of 9 · Tier 3: The deeper mechanics

Who Controls Bitcoin? The BIP-110 Story

3 min read · World of Bitcoin · Explainer

In August 2026, Bitcoin had its most contentious governance fight in nearly a decade. A determined faction — including a veteran developer — tried to change the rules. What happened is the clearest proof yet of the answer to the question everyone asks: who’s actually in charge of Bitcoin?

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In this block

What BIP-110 wasWhat actually happened — it failed three waysThe deeper lesson — unnecessary change is the real risk

The Answer, Up Front

Nobody is in charge — and that’s the entire point. Not miners, not developers, not institutions, not a passionate minority. BIP-110 proved a rule change requires overwhelming consensus — and that no single powerful party can manufacture it.

1What BIP-110 was

BIP-110 (the “Reduced Data Temporary Softfork”) proposed a one-year restriction on non-financial data in transactions — targeting Ordinals inscriptions, BRC-20 tokens, and Runes. Supporters, led by developer Luke Dashjr and a pseudonymous author, framed it as defending Bitcoin’s purpose as money against ‘spam.’ Critics — including Michael Saylor and Adam Back — called it censorship and a dangerous precedent.

Note who was against it: not just the ‘let people use the chain’ camp, but major institutional voices. ETF issuers like BlackRock generally stayed out, with prospectus language addressing forked assets. This was not institutions forcing a change on users — if anything, the reverse.

2What actually happened — it failed three ways

  • Miners rejected it. Signaling peaked at ~2.53% — nowhere near the 55% threshold. Miners couldn’t and didn’t impose it.
  • Forcing it via nodes failed too. Pushed as a user-activated soft fork, the minority chain split off Aug 8, produced exactly TWO blocks in eight hours, then died — while the main chain rolled on 48 blocks.
  • The escalation proved the point. Cornered, backers floated changing Bitcoin’s proof-of-work to ‘fire the miners’ — the nuclear option. That’s what running out of consensus looks like.

Miners Produce Blocks. Nodes Enforce The Rules.

This distinction runs the whole system. Miners order transactions and provide security — but the rules (21M cap, valid signatures, valid blocks) are enforced by thousands of independent nodes run by exchanges, businesses, and individuals. A miner who breaks the rules just mines a chain everyone rejects. BIP-110 showed neither miners nor a node-faction could change the rules alone. It takes near-universal agreement — by design.

3The deeper lesson — unnecessary change is the real risk

The principle that outlives this fight, and the most important idea in Bitcoin governance: Bitcoin’s core value is that it doesn’t change. 21 million. Fixed rules. No discretion. Every ‘improvement’ is a potential attack surface — the change might carry a catastrophic bug, and each successful change establishes that the rules can be changed by whoever argues best, eroding the ‘no one can change it’ property that is the whole reason Bitcoin is worth anything.

  • The difficulty of changing Bitcoin is a FEATURE. The immune system that rejected BIP-110 is the same one protecting the 21M cap. You can’t have an easy-to-improve Bitcoin and a can’t-be-debased Bitcoin. Same property.
  • Ossification is the goal, not the failure. A money that grows harder to change is one you can trust across generations. The risk was never that Bitcoin can’t adapt — it’s that someone adapts it when they shouldn’t.

The One Thing To Carry Out The Door

“Who controls Bitcoin?” has a real, tested answer: no one — and it took a real fight to prove it. A veteran developer, a committed faction, and a genuine grievance still couldn’t change the rules without consensus. That’s not dysfunction. It’s the most important feature working as designed — and why the rules protecting your Bitcoin will still be there in twenty years.

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