Rules the contract
cannot rewrite.

Supply & allocation

The MOMO supply is created once and capped at 21,000,000 MOMO. The contracts expose no owner mint function and the supply cannot be increased later.

Each accepted proof releases exactly 10 MOMO gross. The miner receives 9 MOMO and the liquidity vault receives 1 MOMO.

Proof of work

CPU and GPU modes search the same EVM-compatible Keccak-256 challenge. Hardware changes how quickly nonces are tested, but never changes the reward or the acceptance rule.

• The proof is bound to the chain ID, mining contract, sender and reward recipient.
• It also includes the previous proof digest and a recent Robinhood L2 block hash.
• Only one proof may settle per L2 block.
• CPU mode starts up to 64 real Web Workers; GPU mode keeps a large WebGPU compute queue saturated.
• GPU mode is enabled only after a known-answer EVM Keccak self-test passes, and every winning candidate is checked again before the wallet is asked to sign.
• When a valid nonce is found, compute pauses while the wallet confirms its onchain settlement. After confirmation, the miner automatically loads the new challenge and continues.

Mining fee curve

The deployment sets an initial mining fee, F0. Every time cumulative mining crosses another 1% of the total token supply, the required fee rises by 30% of F0.

The curve is linear relative to the initial fee—not a 30% compound increase at every stage. Miners always read the current fee from the contract before submitting a proof.

Difficulty

The initial difficulty is 10,000,000,000. Every eight accepted proofs, the contract compares real elapsed seconds with a 30-second-per-proof network-wide protocol target. It is not a promise that every device or wallet finds a proof every 30 seconds. Faster hardware performs more valid hashes and therefore has proportionally more chances, as in ordinary proof of work. One retarget may raise difficulty by at most 25% or lower it by at most 20%.

The miner page reports a device-specific statistical mean as difficulty ÷ measured H/s. Its 90% estimate is about 2.303 times that mean. Neither number is a countdown or a guarantee, and both reset when the chain challenge changes.

A permanent floor advances whenever another 210,000 MOMO—1% of the fixed supply—is released. The floor compounds by 20% per stage from 0%-10%, 10% per stage from 10%-50%, and 5% per stage from 50%-95%. Dynamic retargeting can never move below this supply floor.

Robinhood L2 block hashes still provide fresh challenge entropy, but L2 block count no longer controls difficulty.

ETH routing & liquidity

Every accepted proof assigns 1 MOMO to liquidity. The first proof prices the full 10-MOMO gross package at the mining fee: with a 0.001 ETH fee, the launch anchor is 0.0001 ETH per MOMO and the first LP contribution is 1 MOMO + 0.0001 ETH. After the official pool exists, later contributions follow its observed price within bounded mining-cost and per-proof ETH limits. Out-of-range contributions remain in the vault until they can be processed safely.

Of the full mining fee, 10% is assigned to the LP match, 72% to the automatic buyback-and-burn vault and 18% directly to the project treasury. Equivalently, after the 10% liquidity match, 80% of the remaining ETH is routed to buyback and 20% to treasury. Liquidity principal cannot be withdrawn by the adapter.

Trading tax

The official ETH/MOMO Uniswap v4 pool applies a fixed 2% native ETH-side hook fee on buys and sells. MOMO remains a standard ERC-20 rather than a fee-on-transfer token.

The hook converts no MOMO. It settles in ETH and forwards ETH to the developer beneficiary through a passive treasury. The normal 0.3% Uniswap LP fee is separate. Some market trackers display only that 0.3% pool parameter and do not detect v4 hook-returned fees.

The 18% project share described above is part of a successful mining payment, not an 18% buy or sell tax.

Protocol invariants

Mainnet contracts

Robinhood Chain ID 4663. The miner is permanently configured to use the official addresses below.

The fee hook is the Uniswap v4 contract called by the official MOMO/ETH pool on swaps. It enforces the 2% trading tax and sends collected ETH to the fee treasury. The fee treasury immediately attempts delivery to the immutable project beneficiary; if delivery ever fails, ETH stays recoverable through permissionless flush().

The ETH/MOMO pool is created automatically by the first accepted proof. Until then, no official trading pool exists.