Why Proof-of-Work Mining Isn't a Security — and What It Means for MLRT Miners

Source reviewed: SEC Division of Corporation Finance — Statement on Certain Proof-of-Work Mining Activities (March 20, 2025).

For nearly a decade, the question of whether the simple act of running mining hardware could be regulated as a securities transaction was a quiet but serious legal risk hanging over every garage rig, every home GPU, and every small-scale pool operator in the United States. In March 2025, the staff of the SEC's Division of Corporation Finance addressed that question directly. Their conclusion was clean: solo proof-of-work mining and ordinary mining-pool participation, on permissionless networks, are not the offer or sale of securities and do not require registration with the Commission.

For Malairt (MLRT), a Bitcoin-style UTXO chain that is CPU- and GPU-mineable with no premine, no ICO, and no foundation, that staff position lines up unusually well with the network's actual design.

What the staff statement actually says

The Division of Corporation Finance's March 2025 statement walks through proof-of-work mining and applies the longstanding Howey analysis. The staff concluded that miners on a public, permissionless network — whether they mine alone or contribute hash rate to a pool — are not, by virtue of the mining activity itself, participating in an investment contract. The mining reward is generated by the miner's own computational work and the protocol's deterministic rules, not by the entrepreneurial efforts of a promoter.

In plainer language: when a miner spends electricity to find a valid block, any reward that follows comes from the protocol, not from a third party's management. That is the precise factor Howey asks about, and it is the factor missing in honest proof-of-work.

The Division's view, paraphrased: mining activities on a public, permissionless proof-of-work network — in both solo and pool form — do not, in themselves, involve the offer and sale of securities under Section 2(a)(1) of the Securities Act or Section 3(a)(10) of the Exchange Act.

The statement is staff guidance, not a Commission rule, and it is explicitly limited to crypto assets that are intrinsically tied to the operation of a public, permissionless network and used for participating in consensus or maintaining network security. That scope matters — and MLRT sits squarely inside it.

Why the analysis fits MLRT

A surprising number of "proof-of-work" projects fail the staff's framing the moment you read the fine print. They have a foundation that controls upgrades. They had a premine that funded a treasury. They sold tokens to early investors before the network ever produced a block. In each of those cases, the Howey analysis gets messier, because there is, in fact, an identifiable promoter doing identifiable work that the token holder is depending on.

MLRT was deliberately designed to avoid those entanglements:

No ICO and no premine. Coins enter circulation only through mined block rewards on the public chain.
No foundation, no treasury, no promoter. There is no entity collecting tokens to fund "ecosystem development."
Open-source node software (malairte-node) that anyone can read, build, and run.
CPU and GPU mineable, with no ASIC moat, so participation is not gated by access to specialized hardware contracts.
Bitcoin-style UTXO accounting with 2-minute blocks and a 50 MLRT initial subsidy that halves every 210,000 blocks — a fixed schedule with no human discretion.

Apply the staff's framing to that profile. A solo MLRT miner running malairte-node with --mine on a home rig is investing electricity and computation, not money in a managed enterprise. The block reward is dispensed by the protocol. There is no central party whose efforts the miner is relying on. The network's operation is not somebody's product roadmap; it is the consensus output of every participant.

Solo mining vs. pool mining

The staff statement is careful to bring pool participation inside the safe analysis, not just solo work. That matters in practice because most small miners contribute to a pool to smooth out variance. The reasoning is straightforward: a mining pool that simply coordinates hash rate, distributes rewards proportional to contributed work, and takes a small fee for the coordination service is not a managed investment vehicle. Each pool participant's share is a function of the work they performed.

That logic transfers to MLRT pools as they emerge. As long as a pool is doing protocol-coordination work — combining shares, submitting blocks, paying out by hash contribution — the pool participants are still earning protocol rewards based on their own computational effort, not the entrepreneurial labor of a promoter.

There are, of course, edges where a "pool" stops being a pool and becomes something else: bundled cloud-mining contracts that promise fixed yields, custodial arrangements that take title to user funds, leveraged hash-rate derivatives. Those structures involve different facts and different analysis. The staff statement does not bless them. Miners and pool operators should treat the statement as covering ordinary mining, not every product that uses the word "mining" in marketing.

Why this matters for the United States in particular

The U.S. has a long history of households and small businesses contributing to open networks — running ham radios, hosting BBSes, operating Tor relays, validating Bitcoin blocks. A regulatory regime that treated every block reward as a securities sale would have been crushing not just for industrial miners but for any individual who wanted to participate in the protocol layer of an open network from a U.S. address.

The Division of Corporation Finance staff's March 2025 view de-risks that participation. It does not promise tax simplification, and it does not preempt state law, and it does not endorse any particular project. What it does is clear the most chilling federal-securities-law overhang from the simple act of mining a public coin.

For an explicitly permissionless, mineable coin like MLRT, that clarity reduces the regulatory friction for anyone in the U.S. who wants to point a CPU or a GPU at the network and earn block rewards on the same terms as everyone else.

What this means for MLRT users

Solo miners: Running malairte-node --mine on your own hardware to earn MLRT block rewards is, on the staff's analysis, not a securities transaction.
Pool participants: Joining a pool that simply coordinates hash rate and pays out by share contribution is treated under the same analysis.
Pool operators: Keep the structure clean. Pay by contributed work. Don't bundle yield promises or custody beyond what is operationally needed.
Tax and state law are separate questions. This guidance is about federal securities law only. Mining income remains taxable, and state-level money-transmission rules can still apply to specific business models.
The staff statement is not a rule. It is the staff's view. It can be refined or superseded. But it is the clearest published position the Division has taken on PoW mining in years, and it lines up with how MLRT was built.

References

Statement on Certain Proof-of-Work Mining Activities — SEC Division of Corporation Finance (staff), 2025-03-20

This article is editorial commentary published by the Malairte project. It is not legal or investment advice and does not represent the views of the U.S. Securities and Exchange Commission or any of its staff or commissioners.