EPOCH 1 IS FREE!

Chicken Hash

7,000 pixel hens on Robinhood Chain. Put your CPU or GPU in the incubator, find a hash and hatch a hen. No allowlist, no presale. Just proof-of-work.

Start hatching Meet the flock

The Egg Carton

10 epochs × 700 hens. Epoch 1 is free, then prices rise gently from 0.0001 to 0.003 ETH.

Incubator

egg
Ready to incubateConnect a wallet, pick CPU and/or GPU, press start.
CPU ✓
0 H/s
4threads
GPU
WebGPU
0 H/s
Hashrate
0 H/s
Expected time
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Chance in 10 min
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Hatched by you
0
Hatched
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Price now
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Difficulty
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Last hatch
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Coop Log

live from the chain

The Flock

All 7,000 hens. Hatched ones show their owner.
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My Coop

FAQ

How does hatching work?

Every hen has a public challenge. Your browser keeps computing keccak256(challenge, yourWallet, nonce) with new nonces. When the result is below the target, you've found a valid hash and your egg can hatch (you mint). Your wallet address is part of the hash, so nobody can steal your solution.

After every hatch the challenge changes for everyone. Mining is memoryless, so you never lose progress. Every hash has the same chance.

What does it cost?

Epoch 1 (the first 700 hens) is free, gas only, up to 2 hens per wallet. Max 2 hens per wallet in total across all epochs. After that the price starts at 0.0001 ETH and rises a little each epoch, topping out at 0.003 ETH:

EpochHatch orderPrice
Which hen will I get?

Your hen is picked on-chain from the eggs still in the carton at the moment you hatch, seeded with the L2 block hash. Nobody can choose or snipe a rare one, not even the team. Browse every hen and its rarity in The Flock.

CPU or GPU?

CPU works in every modern browser (Web Workers). GPU uses WebGPU (Chrome, Edge, Brave, and Safari 26+ on desktop) and is usually much faster. Keep the tab visible: browsers slow down background tabs.

How is difficulty set?

Difficulty retargets after every hatch to aim for about one hen every 60 seconds across all miners. If nobody finds a hash for a while it gets easier automatically, so hatching never gets stuck.

Contract

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