Roman Storm, the Tornado Cash co-founder convicted last August on a single money-transmitting charge, has become the human face of a legislative push that aims to make sure no developer ever faces the same fate just for writing code. The CLARITY Act's Section 604 — which would create a federal safe harbor for non-custodial software builders — passed the House last summer and cleared the Senate Banking Committee last month. But it hasn't gotten a floor vote, and the clock is ticking.
Eight months after the verdict
Storm was found guilty on August 6, 2025, of conspiracy to operate an unlicensed money transmitting business. The jury deadlocked on the two more serious counts — conspiracy to commit money laundering and conspiracy to violate sanctions. He faces up to five years at sentencing. The mixed outcome left crypto developers rattled: even a partial conviction for publishing immutable code set a precedent the industry has been trying to overturn ever since.
What Section 604 actually says
The provision is the direct descendant of the Blockchain Regulatory Certainty Act, first introduced in 2018. It says a developer who doesn't control user transactions — no legal right, no unilateral ability to move funds, no way to initiate a transfer without someone else's approval — can't be treated as a money transmitter just for publishing distributed ledger software, building self-custody tools, or running a node. Tornado Cash fits that non-controlling architecture perfectly. Under Section 604, deploying that mixer wouldn't, by itself, make Storm a money transmitter.
Senator Lummis named Storm's case as the animating example. FinCEN's own 2019 guidance already said non-custodial developers aren't money transmitters. The bill would write that into federal statute.
Industry pressure mounts
More than 60 CEOs and founders — from Coinbase, Uniswap, Kraken, a16z crypto, Paradigm — signed a letter in June 2026 calling Section 604 a non-negotiable condition of their support for the broader CLARITY Act. That's a big stick. The provision is paired with two others: Section 601 limits SEC registration for non-custodial builders, and Section 207 creates a commodities-law carve-out. Together they frame developers as technical publishers, not financial intermediaries.
The timing isn't great. Storm's sentencing hasn't happened yet, and the Senate hasn't scheduled debate. Every month without a floor vote leaves developers in legal limbo — especially after the DOJ's broad theory of liability in the Storm case.
What comes next
The Senate Banking Committee voted 15-9 in May to advance the bill. That's a bipartisan majority, but not veto-proof. Majority Leader Schumer hasn't put it on the calendar. The industry letter made clear the coalition's support hinges on Section 604 staying intact. If the Senate strips it or lets it die, the safe harbor goes with it — and Roman Storm's case will remain the only guide for every non-custodial founder in the country.
