By Scott McCain
Published: Jul 14 2026, 2:25 PM EDT

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GOP New Hampshire Senate candidate Kelly Ayotte greets supporters at her election night party at the Grappone Convention Center on November 9, 2016, in Concord, New Hampshire. Kayana Szymczak/Getty Images

New Hampshire Governor Kelly Ayotte signed House Bill 639 — officially titled the Blockchain Basic Laws — into law this week, delivering the most operationally specific digital-asset rights framework enacted by any U.S. state to date. The legislation draws a long-overdue legal line between running blockchain infrastructure and engaging in money transmission, a distinction that has never been formally settled at the federal level and that has left node operators, miners, and validators in a regulatory gray zone since FinCEN extended its money-service-business framework to virtual currencies in 2013.

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The law's main provisions take effect approximately 60 days after the signing. A separate section establishing definitions took effect January 1, 2026.

Node Operators Get What FinCEN Never Gave Them

The most consequential provision in HB 639 is the explicit exemption of blockchain node operators and miners from New Hampshire's money-transmitter licensing statute, RSA 399-G. Under the law, a person engaged in home digital asset mining or a digital asset mining business is not required to obtain a money transmitter license. Operating a node or series of nodes on a blockchain protocol requires no such license either. Anyone who mines, runs a node, or provides staking services also cannot face liability related to a specific transaction merely because they validated it.

To understand why this matters technically, it helps to understand why the ambiguity existed at all. A money transmitter, under FinCEN's framework, is someone who accepts value from one person and transmits it to another. A Bitcoin full-node operator does neither. It receives broadcast transactions from the peer-to-peer network — transactions the node operator did not solicit from any customer — and validates each one against the Bitcoin protocol rules: checking digital signatures, confirming that the inputs reference unspent outputs, verifying the transaction fee. If the transaction passes, the node relays it. If it fails, the node drops it. No value passes through the operator. The operator never holds a customer's funds.

A miner's economics are structurally different again. Miners bundle pending transactions from the public mempool into candidate blocks, perform computational work — SHA-256 hashing in Bitcoin's case — to find a block hash below the network's current difficulty target, and collect a coinbase reward set by the protocol itself. That reward comes from the network's own rules, not from a third party who handed them value to transmit. A miner does not receive money from a sender to forward to a recipient. Regulators who read "accepting and transmitting value" broadly enough to sweep node operators into that category were applying a rule designed for wire-transfer services to a technically distinct activity.

New Hampshire has now put that distinction into statute. For blockchain infrastructure operators in the state, the result is legal clarity that the federal framework does not yet provide. If other states adopt the same carve-out — following the pattern of Wyoming, which exempted cryptocurrency from its own money transmitter act in 2018 and subsequently attracted 24-plus crypto-friendly laws — the collective effect could function as a national de facto safe harbor for node operators, built state by state rather than through FinCEN guidance.

Self-Custody Rights and Crypto Payment Protections

HB 639 also addresses two related legal gaps affecting ordinary crypto holders.

On self-custody, the law prohibits state and local governments from restricting an individual's use of digital assets, including holding them in a self-custody wallet — one where the user controls the private keys rather than delegating that control to an exchange. The practical stakes of that distinction were illustrated most sharply by the FTX collapse in late 2022, when exchange customers became unsecured creditors of a bankrupt company and lost access to funds they believed they owned. Self-custody eliminates that counterparty risk by making the user, not the exchange, the holder of the cryptographic keys that authorize transactions.

The law also bars additional taxes or surcharges imposed specifically because digital assets are used for payment — effectively blocking any crypto-specific transaction levy a municipality might attempt. Neither state nor local government may prohibit individuals or businesses from operating blockchain nodes, validating transactions, or participating in staking on blockchain networks.

Staking and Securities Classification

HB 639 provides equal clarity on staking — the process by which proof-of-stake networks like Ethereum select validators to propose and attest to blocks — and on whether offering staking services constitutes a securities offering under New Hampshire law.

Under the law, individuals who mine or stake digital assets using their own funds are not automatically offering securities. Digital asset exchanges that provide staking services to customers are also not considered to be offering securities, provided customer assets remain under appropriate control. The latter provision matters because the U.S. Securities and Exchange Commission has argued in several enforcement actions that exchange-based staking products constitute investment contracts under the Howey Test. New Hampshire's law does not resolve that federal debate, but it provides a meaningful safe harbor at the state level for staking operators based in New Hampshire.

The NH Department of State noted in a fiscal note on the bill that it would limit the NH Bureau of Securities' authority to regulate digital asset mining or staking services, which would no longer be classified as securities or investment contracts under RSA 421-B.

A Blockchain Court Docket for Smart-Contract Disputes

Among the law's most durable provisions is the creation of a dedicated blockchain dispute docket within the New Hampshire Superior Court system. The docket will cover civil cases involving blockchain technology, smart contracts, digital-asset transactions, related contracts, fraud, misrepresentation, and breaches of fiduciary duty. Parties in blockchain-related civil matters can opt into this specialized track.

The rationale is straightforward: as smart contracts proliferate and on-chain transactions become the subject of commercial litigation, ordinary courts are confronted with technical and mechanical questions they were not designed to handle. A standing specialized docket, staffed by judges who develop domain expertise across repeated cases, can establish consistent procedural practices and reduce the unpredictability that currently makes blockchain-related disputes more expensive to litigate. Wyoming created a comparable Chancery Court for business disputes in 2019, and it has become a practical advantage for companies incorporating there.

For blockchain startups evaluating where to incorporate or domicile their operations, a state that explicitly protects node operation, self-custody, crypto payments, and staking — and provides a specialized court to resolve disputes — materially reduces legal operating risk compared with states that have not addressed these questions.

What the Model Legislation Came From — and What It Costs

HB 639 was sponsored by Rep. Keith Ammon, a Goffstown Republican and chair of the New Hampshire Blockchain Council who also holds digital assets personally. The bill's mining provisions are built on model legislation drafted by the Satoshi Action Fund, a Mississippi-based nonprofit organization that promotes Bitcoin-friendly legislation and has successfully passed similar templates in Arkansas, Louisiana, Montana, and Oklahoma.

Environmental advocacy groups raised objections during the legislative process. The New Hampshire Sierra Club argued the bill "devalues and demotes communities from being able to zone and govern the enterprises within its own borders." The National Coalition Against Cryptomining called the mining provisions "a boilerplate piece of legislation written by one of crypto mining's biggest lobbying firms." Both groups pointed to the energy consumption of proof-of-work mining — one Dutch doctoral researcher's analysis found that a single Bitcoin transaction consumes electricity equivalent to an average U.S. household's usage over more than 45 days — and to Arkansas as a cautionary case.

Arkansas enacted similar protections in 2023 under the Arkansas Data Centers Act. The arrival of large mining operations prompted intense resident complaints about 24-hour noise and water use. A bipartisan group of Arkansas lawmakers subsequently passed legislation restoring some local regulatory authority — a reversal Satoshi Action Fund's model legislation had been designed to prevent. New Hampshire's law preserves local noise ordinances, which the bill's opponents note is a narrower protection than communities in affected states have needed.

Building on Two Years of Blockchain-First Policy

HB 639 did not arrive in a vacuum. Ammon was also the primary sponsor of HB 302, which Gov. Ayotte signed on May 6, 2025 — making New Hampshire the first U.S. state to authorize its state treasurer to invest up to 5% of certain public funds in digital assets with a market capitalization above $500 billion. Bitcoin is the only asset currently eligible under that threshold.

Both bills build on recommendations issued by former Gov. Chris Sununu's Commission on Cryptocurrencies and Digital Assets, which found that legal uncertainty had discouraged blockchain investment and innovation in the state. The legislature's intent was explicit: New Hampshire wants to become an attractive jurisdiction for blockchain-related business and innovation by providing regulatory certainty.

The week that HB 639 was signed was also the week that the state's Executive Council voted 3–2 to reject a $100 million Bitcoin-backed municipal bond that would have been the first of its kind in U.S. history. Moody's had assigned the bond a Ba2 speculative-grade rating, which legally excluded the pension funds, insurance companies, and municipal bond funds that make up the conventional municipal bond market. Bitcoin had declined roughly 50% from an all-time high of approximately $126,000 in October 2025 to around $62,000 at the time of the vote. The executive council's rejection and HB 639's signing in the same week captures the state's position: New Hampshire will build the legal infrastructure for blockchain business, but the state's own finances are subject to credit market realities that crypto's volatility does not resolve.

What the Law Does Not Do — and the Federal Question That Remains

HB 639 exempts mining, staking, and node operation from state money-transmitter licensing and state securities classification. It does not address federal requirements. A miner or exchange that is large enough to meet the federal definition of a money services business may still need to register with FinCEN and comply with federal Bank Secrecy Act requirements regardless of what New Hampshire law says. Federal and state licensing are parallel obligations; the state carve-out removes the state layer, not the federal one.

The law also does not require anyone to use New Hampshire's blockchain dispute docket. It creates an option. Parties in blockchain disputes who prefer a different venue or jurisdiction retain that choice.

And the law does not require state custody of cryptocurrency and does not obligate any public institution to hold digital assets — a distinction the bill's text makes explicit, separating this legislation from HB 302's investment authorization.

For blockchain operators based outside New Hampshire, the legislation's immediate practical effect is limited — but its role as a legislative model may prove more significant than its direct reach. When Wyoming passed its Virtual Currency Exemption in 2018, it was the first state to remove cryptocurrency from its money transmitter act. Other states gradually followed. New Hampshire has now done the same for node operators, while adding the staking and securities carve-outs Wyoming's framework did not include, as analyzed in Wyoming's blockchain legislation history. Whether the pattern repeats depends on how many other state legislatures treat New Hampshire the way they treated Wyoming — as a template rather than an outlier.

Frequently Asked Questions

Do Bitcoin node operators in New Hampshire still need to register with FinCEN as a money services business?

HB 639 removes the New Hampshire state money-transmitter licensing requirement for node operators — they are no longer required to obtain a license under RSA 399-G solely because they run a node or mine. The law does not affect federal obligations. Entities that meet the federal definition of a money services business may still need to register with the Financial Crimes Enforcement Network and comply with federal Bank Secrecy Act rules, regardless of what state law provides. The state and federal layers are independent.

What exactly is a self-custody wallet, and why does protecting it matter legally?

A self-custody (or non-custodial) wallet is one where you — not an exchange or other service provider — hold the private keys that control your crypto. Your private key is the cryptographic secret that authorizes transactions from your blockchain address. When you hold it yourself, no company can freeze it, lose it in a hack, or become insolvent and strand your funds. Exchanges that hold keys on your behalf have repeatedly demonstrated this risk: the Mt. Gox breach (2014) and the FTX bankruptcy (2022) both left exchange customers as unsecured creditors with no guaranteed recovery. HB 639 prohibits New Hampshire from requiring residents to use a third-party custodian instead — a meaningful protection as some regulatory proposals elsewhere have suggested mandating KYC-linked custody.

Could other states adopt New Hampshire's node operator exemption to create a broader safe harbor?

That is the largest implication of HB 639 that goes beyond New Hampshire's borders. FinCEN's 2013 guidance on virtual currency has never definitively addressed whether node operators and validators constitute money transmitters. Federal regulators have not issued a clarifying rule. If other states pass statutes modeled on HB 639's money-transmitter carve-out — as they followed Wyoming's 2018 example — the cumulative effect could be a nationwide patchwork of state-level protections that effectively removes the state enforcement risk for blockchain infrastructure operators, even in the absence of federal clarity. That outcome is not guaranteed, but it is precisely what the Wyoming precedent suggests is possible.

Is crypto mining now free from all local regulation in New Hampshire?

No. HB 639 prohibits state and local governments from targeting crypto mining with restrictions that apply specifically and uniquely to mining — such as a municipality banning mining outright or levying a crypto-specific surcharge. But local noise ordinances that apply to all loud commercial operations remain in effect. The practical boundary is anti-discrimination: a town cannot single out mining for special restrictions it would not impose on a data center or a factory making the same noise or drawing the same power. Standard zoning, building codes, and general commercial regulations still apply.