Stock Miner

Don't trade stocks. Mine them.

Formerly MineStreet, then HoodMiner (2026-07-11); renamed Stock Miner on 2026-07-14. Name only: the mechanics, the numbers, and the token are all unchanged — the native token is now called $MINER (was $TICK), and the Miner NFT's on-chain symbol is RIG.

Stock Miner is an on-chain mining game built on Robinhood Chain. You buy a Miner — an NFT tied to a real ticker like GOOGL or TSLA — and it earns a share of everything that flows through that ticker's pool.

Three names, so let's keep them straight up front: Stock Miner is the project (this thing). $MINER is its native token — the one you burn, stake, and vote with. HOOD is one of the themed tickers you can mine (named for Robinhood, unrelated to the project's own former "HoodMiner" name), and its pool's underlying asset is Stock Miner's own HOOD token (there is no Robinhood-issued HOOD stock — see risks.md). When this paper says "Stock Miner" it means the project; when it says "HOOD" it means the ticker. The payout lands in the tokenized stock itself, not in a farm token we printed for the occasion.

It is a game. It is not an investment product, and nothing on this page is a promise about what you will earn. Read risks.md before you buy anything. We put the ugly numbers on their own page and we made it a link, not a footnote.

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1. The premise

Every mining game has the same skeleton: you buy a machine, the machine earns, the machine eventually dies. What they usually hide is where the money comes from and where it stops.

We didn't hide it. Every constant in this document lives in one Solidity file — contracts/src/config/Params.sol — and no other contract in the protocol is allowed to hard-code an economic value. The numbers on this page, the numbers in the app, and the numbers on-chain are the same numbers. If they ever disagree, that's a bug and we want to hear about it.

The full disclosure page is mechanics.md. It documents every cap, split, fee, and rate limit in the protocol — including the ones that cost you money. That page exists because of a rule we set for ourselves before we wrote any code: if a mechanic can't survive being disclosed, it doesn't ship.

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2. The miners

Three tiers. Hard supply caps per ticker, forever.

Hash power is superlinear against price — a Whale costs 5x a Penny and carries 7x its weight. That is deliberate: it pulls buyers up the tiers. Supply moves the other way. Twenty Whales per ticker, ever. When they're gone the only way to get one is to buy it from someone who has one.

Both caps are ceilings, not targets. The lifetime cap is the point at which a miner stops earning — it is not a number we expect a typical miner to reach, and we explain exactly why in risks.md.

You can mint at most 5 miners per tier, per ticker, per wallet on the primary. The marketplace is unrestricted.

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3. How mining works

The pool

Each ticker has one pool. When someone mints a miner on that ticker, 60% of what they paid goes straight into that pool and is distributed pro-rata to every active miner's hash power, instantly. Your Penny Miner with 1 hash power sitting next to a Whale with 7 gets one-eighth of what the Whale gets. That's the whole distribution rule.

The other 40% of a mint is split five ways. All of it is documented in mechanics.md — vault, treasury, buyback-and-burn, insurance fund.

The vault

20% of every mint on a ticker goes into that ticker's Vault, which uses it to buy and hold the actual tokenized stock. The vault then drips 1% of its holdings per day back into the pool. That drip is the pool's baseline — it keeps paying after the minting stops, and it is the one part of the system with genuine exposure to something outside the game, because the vault really does hold GOOGL.

The drip is triggered by a permissionless keeper. Anyone can crank it, once a day. Holding the underlying isn't free — value swaps into stock and back out again, which costs a little spread each way (up to ~6% round-trip in the worst governed case, far less in practice). The exposure is real; it just isn't a lossless store. The full accounting is in mechanics.md.

The boot sequence

A new miner has zero hash power for its first 24 hours. We call it the boot sequence, and it is not flavour text — it exists so that nobody can watch a whale purchase land in the mempool, mint a miner into the same block, and take a cut of the payout they contributed nothing to. Warm-up is on mintedAt, so it happens exactly once in a miner's life. Buying a miner on the marketplace does not restart it; you're buying a machine that's already booted.

Burnout, refurbish, merge

When a miner's lifetime earnings reach its cap, it burns out: it stops earning, keeps its art (a scorched variant), and stays tradeable as a collectible.

You can refurbish it — burn $MINER to bring it back for another cycle. It comes back at half the efficiency of the previous cycle, and again at half of that, up to three refurbishes total. It is a token sink with sharply diminishing returns, and we say so on the box.

You can also merge two identical prime miners into one — 2.0x the tier's hash power, the two caps summed, a large $MINER burn, and both originals destroyed. Merge conserves hash power rather than creating it. It's for people who want fewer, bigger machines and a rarer NFT, not for people looking for an edge — an earlier version of the parameters gave merged miners a bonus, our simulator found it was free money, and we took it out. Full accounting in mechanics.md.

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4. The token

$MINER. Fixed supply of 1,000,000,000. No emissions, ever. There is no mint function waiting behind a governance vote. What exists at genesis is all there will ever be.

$MINER is fuel and a vote, not a yield instrument. You burn 500 of it to mint a miner. You burn it to refurbish. You burn 50,000 to merge. You stake it to vote and to earn a hash-power boost. 5% of every mint and 40% of every marketplace fee market-buys $MINER and burns it.

We are going to be blunt about the last one, because every project in this category lies about it: the buyback-and-burn is not a deflation engine. Our own simulation puts total annual burn somewhere between 0.15% and roughly 3% of supply depending on how well the protocol does. It's a utility sink. Treat it as one.

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5. Governance: the IPO vote

Eight tickers are live at launch: GOOGL, TSLA, HOOD, ETH, NVDA, AAPL, MSFT, AMZN.

Three more sit greyed out on the board, waiting: COIN, SPY, BTC. These are pre-IPO. They go live when the people holding the token vote them live.

• Stake 10,000 $MINER to vote. Stake 250,000 to open a proposal.
• Voting weight is sqrt(staked) — a whale with 100x your stake gets 10x your vote, not 100x. (This has a known limitation. We disclose it, in detail, in mechanics.md.)
• 5-day vote, 4% quorum, then a 48-hour timelock before anything executes.
• Votes are snapshotted at the proposal block, so you can't flash-loan your way in.
• Proposals can only ever list a ticker from the pre-approved pre-IPO set. This is parameter governance, not open governance — you cannot vote to drain the treasury, because there is no proposal shape that expresses it.

Stakers also get +5% hash power on every miner they own while staked, with a 7-day cooldown on the way out.

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6. The marketplace

Native, escrowed, 5% fee. Two things make it unusual.

Escrowed miners keep earning. Listing your miner doesn't take it off the floor — it keeps mining for you, the seller, right up until someone buys it. There's no "listing means giving up yield" tax, so there's no reason to hide a miner from the market while you squeeze the last drops out of it.

Sales feed holders. Of the 5% fee, 40% goes to treasury, 40% buys and burns $MINER, and 20% goes straight back into the pool of the ticker that was traded. Every GOOGL miner that changes hands pays every other GOOGL miner a little.

Every listing shows the miner's full history — lifetime earned, cap remaining, refurbish count, burnout status. You cannot quietly sell a nearly-dead machine to someone who doesn't know how to check. The information is on the card.

There is one thing about selling that will cost you money if you don't know it, and it is written in plain language at mechanics.md. Read that section before you list.

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7. Events

Real market events, mapped onto the game, funded honestly.

• Earnings Week — one ticker, up to 7 days: the vault's daily drip doubles to 2%/day. The vault pays for it out of its own holdings. It is a real, self-funded event, not a multiplier we conjured.
• Dividend Day — a one-off bonus drip of up to 5% of a ticker's vault into its pool.
• After-Hours — a top-up paid into pools from the treasury's Growth bucket.

Every event is triggered through the timelocked EventController, emits an on-chain event, and appears in a public log in the app. Nothing happens to your pool that you cannot see happening.

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8. Where the money isn't

We'll close where most litepapers open.

Stock Miner is a redistribution game. The pool that pays you is filled, mostly, by other people buying miners. Our own Monte Carlo simulation — published, unedited, at docs/tokenomics-report.md — says that 53–60% of a day-one buyer's lifetime earnings are paid directly by people who bought later, and that in every scenario we modelled, the bottom decile of late buyers earned 0.15x to 0.19x of what they paid.

The vault holding real tokenized stock is the one thing in the design that brings money in from outside. It is real, and it is not large enough to change that sentence.

We are not going to dress this up. If purchases stop, payouts fall. That is not a failure mode we're guarding against; it's the shape of the machine. Everything else — the transparency page, the on-chain caps, the published simulation, the risk page — exists so that you can decide, with the real numbers in front of you, whether you want to play anyway.

→ The full mechanics disclosure → The risks → FAQ

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Not available to U.S. or U.K. persons. Stock Miner is a game, not a financial product. Nothing here is investment advice or a projection of returns.