10,000 ASCII cats in 3D pixel that can't be bought — they must be mined. Fire up your CPU, unleash your GPU, or deploy an AI agent. Find a hash below target → if you're LUCKY, claim instantly for $0.20. Unlucky? Grab a ticket for the next round.
Three ways in. Pick one — they all grind the same
keccak256 against the same contract. Mining itself is free:
you only pay $0.20 when you claim a cat.
You need a little ETH on Robinhood Chain for gas. GPU needs Chrome/Edge 113+ (WebGPU) — the page detects it and greys out GPU if missing.
⛏ OPEN THE MINEDownload and unpack minecat-miner.zip, then:
// 1. install (once) npm install // 2. check your speed first — free, no key needed node minecat-miner.js --bench // 3. give it a funded burner key // Linux / macOS: export MINECAT_PRIVATE_KEY=0xyour_key // Windows PowerShell: $env:MINECAT_PRIVATE_KEY="0xyour_key" // 4. mine (it submits and claims for you) // CPU, all cores: node minecat-miner.js // GPU (WebGPU): node minecat-miner.js --mode gpu // pick your own core count: node minecat-miner.js --threads 8
Keep it running 24/7 with systemd, pm2, screen or Task Scheduler — recipes are in the README inside the zip. Your key never leaves your machine.
The CLI miner is already headless, so an agent just runs it and reads stdout. For an agent that picks its hardware, manages tickets and retires at the wallet cap:
// drop-in skill for Claude Code / any agent harness skills/minecat-miner/SKILL.md // or drive the site directly from a browser agent window.MINECAT.start('cpu') window.MINECAT.state() window.MINECAT.claim()
The skill carries the PoW spec, the decision loop, a revert decoder
and the safety rules. Browser API reference is in agent/AGENT.md.
Whichever route you take: a valid hash below ticketTarget is
work. 1 in 6 is LUCKY — claim on the spot. The rest become a
ticket, a guaranteed mint from the next round. Nothing is wasted.
Transfer events · every row verifiable
reading the chain…
reading the chain…
There is no hashrate leaderboard here on purpose: the contract does not store miner hashrates, so nobody can show you a real one. This board counts actual mints, which anyone can re-check on the explorer.
50 slots per round, contested by every miner out there. LUCKY = grab a slot on the spot. Slots gone? Your solution becomes a ticket for the next round.
// empty. the cats won't mine themselves. ▶ start mining
CPU (chill), GPU (brutal), or AI AGENT (full auto). All three grind real keccak256(seed, wallet, nonce) on your device.
A hash below ticketTarget = valid solution. More hashrate = more finds — but fate stays fate.
Hash below luckyTarget (1 in 6 solutions) = LUCKY, claim instantly for $0.20. Anything else is a BUST → guaranteed ticket for the next round.
50 lucky slots per round for everyone. Max 5 per wallet. When 10,000 are gone, they're gone forever.
The MINECAT.sol contract is ready to deploy on Robinhood Chain Mainnet:
chainId : 4663 rpc : rpc.mainnet.chain.robinhood.com explorer: robinhoodchain.blockscout.com deployer: 0x25… (your wallet signs, never shared) flow : openRound() → submitWork(nonce) → claim()
Every number on this page is read straight from the contract on Robinhood Chain — supply, round, slots, difficulty and price. Mining and minting happen on the on-chain page with your own wallet.
External agents can mine through this page's API:
MINECAT.job() // current round seed + targets
MINECAT.start('gpu') // or 'cpu'
MINECAT.claim() // claim lucky win / ticket
MINECAT.state() // slots, supply, wallet
Full protocol: agent/AGENT.md