Rig ($RIG)

Mine ETH in the browser. Open rig.fan, press Start, and your GPU (WebGPU) or CPU (WASM) searches keccak shares for the current round. Every trade of $RIG pays a fee; 40 % of the project's part goes into the mining pool as ETH (60 % to the team, fixed in the contract), and every round splits the release between miners in proportion to work.

No NFTs. No presale. No team token allocation. Nothing to install.

How it works

 trade $RIG ── 4 % fee ──▶ PONS 1 % + creator 3 % ──▶ PonsTreasury ──┬── 40 % ETH ──▶ HashMine pool
                                                                      └── 60 % ETH ──▶ team wallet    │
 browser miner ── keccak shares ──▶ HashMine ── round close ──▶ release ∝ work ◀──────────────────────┘

1. Fees. Every trade pays 4 %: the PONS base fee (1 %) plus the creator tax (3 %). About 3.7 % of volume reaches the project, in ETH.
2. Split, not buyback. PonsTreasury is the token's creator-fee recipient. harvest() — anyone can call it — pulls the fees from PONS and splits them by a ratio fixed at deployment (teamBps, immutable): 40 % to HashMine, 60 % to the team wallet. Nothing is swapped, nothing is kept in between: the pool's only inflow is its share of fees (and donations).
3. Rounds. Every 600 s the pool releases 48 bps of its ETH to the round that just closed.
4. Shares. A share is a nonce with keccak256(beneficiary ‖ challenge ‖ nonce) under the target. It is bound to your address, so nobody can submit your work as theirs. Reward = release × your work ÷ total work.
5. Session key. The tab signs with a throwaway key that only pays gas. Rewards go to the beneficiary you chose.

The miner

• WebGPU engine (WGSL keccak) with a WASM fallback (Rust), both in workers — the page stays responsive.
• Load cap. Never more than 50 % of your machine: the duty cycle is measured and enforced, adjustable down to 10 %.
• Difficulty per miner with a gas floor: small rigs still get shares, big rigs don't spam the chain.
• Nothing leaves the tab except the shares.

Tokenomics

Launch	PONS on Robinhood Chain
Trade fee	4 % (1 % PONS + 3 % creator) → ≈3.7 % of volume to the treasury, in ETH
Fee split	40 % mining pool / 60 % team wallet — immutable in PonsTreasury
Team token allocation / reserve	0
Pool inflow	40 % of trading fees via PonsTreasury.harvest(); no buyback, no swap
Round	600 s, releases 48 bps of the pool
Rewards	ETH, proportional to work in the round

Layout

Path	What
contracts/	Foundry: HashMine.sol (rounds, shares, ETH rewards), PonsTreasury.sol (creator-fee recipient: harvest → 40/60 split, timelocked migration)
miner-wasm/	Rust → WASM keccak share search (CPU engine)
web/	Vite + React miner: engines (WASM workers, WebGPU), controller, UI
sim/	Parameter simulation (sim/RESULTS.md)
scripts/	build-wasm.sh, export-abi.sh
docs/	Design spec and execution plans (docs/superpowers/)

The working name hashmine survives in the share-pool contract HashMine.sol, the spec/plan file names and the WASM crate.

Commands

# contracts
cd contracts && forge test --no-match-path 'test/fork/*'     # unit + invariants
cd contracts && forge test --match-path 'test/fork/*'        # against real PONS on a mainnet fork (drpc)
cd contracts && forge script script/Vectors.s.sol:Vectors    # cross-implementation hash vectors

# wasm + abi (after changing miner-wasm/ or contracts/src/)
scripts/build-wasm.sh
scripts/export-abi.sh

# web
cd web && npm install
cd web && npm test              # vitest (engines, policy, controller, UI helpers)
cd web && npm run test:browser  # WebGPU + WASM engines in headless Chromium
cd web && npm run test:e2e      # controller against HashMine on anvil
cd web && npm run test:e2e-ui   # the Mine/Stats/Docs pages against anvil, screenshots in web/e2e-artifacts/
cd web && npm run dev           # local dev server; pass ?chain=local&rpc=…&hashMine=0x… or set VITE_* env

# simulation
cd sim && python3 hashmine_sim.py --seed 1

Browser tests need the cached Chromium 1243 (~/Library/Caches/ms-playwright/chromium-1243) or RIG_CHROME=<path>; WebGPU on Metal is required for the GPU checks.

Configuration (web)

VITE_CHAIN (local | testnet | mainnet), VITE_RPC_URL, VITE_HASHMINE_ADDRESS, optional VITE_TREASURY_ADDRESS and VITE_FEE_ESCROW_ADDRESS (enable harvest), VITE_X_URL. URL query parameters chain, rpc, hashMine, treasury, feeEscrow, beneficiary override them.

The Token page watches the PONS launch on Robinhood Chain mainnet regardless of the mining chain: VITE_PONS_TOKEN (or ?token=0x…) and optional VITE_PONS_RPC_URL (?ponsRpc=). It shows the creator's fees waiting in the fee escrow, on the bonding curve and in the Uniswap v4 hook, plus price, market cap and graduation progress, refreshed every 3 s.

Links

• Site: https://rig.fan
• X: https://x.com/rigdotfan
• Source: https://github.com/Ega741/rig
• Chain: Robinhood Chain (Arbitrum Orbit) · Launchpad: PONS