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Five contracts, about 350 lines. Everything below is on-chain and verifiable.

Chain

NetworkRobinhood Chain (Arbitrum Orbit L2)
Chain id4663
RPChttps://rpc.mainnet.chain.robinhood.com
WETH0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73
Uniswap V3 factory0x1f7d7550B1b028f7571E69A784071F0205FD2EfA
Courtyard (Polygon)0x251be3a17af4892035c37ebf5890f4a4d889dcad

Note the Uniswap factory is not at the canonical 0x1F98431c… address on this chain — that address holds an unrelated contract, as do the canonical SwapRouter and position manager addresses. The factory above was identified by its bytecode and by the fact that it hosts the pools for genuine first-party Robinhood tokens.

Contracts

Registry0x913d526f1d329ce82d802c70792efa56c5564b08
Factory0xdc055d250835b971c0ecf876f4ac078d913648c8
Locker0x91f17e67f3355ff4ba3d29d118b2c15efb283130
  • PokepadRegistry — one card, one token. spawnCard is permissionless given a valid attestation and reverts CardExists() on a repeat. It deploys the token itself, so no wallet is ever its deployer.
  • PokepadFactorylaunch opens a coin pool quoted in the card token; launchUniswap opens a WETH-quoted one instead. Both spawn the card token first if it does not exist.
  • PokepadLocker — holds every LP position permanently. Coin-pool fees are claimable by the coin's creator; card-pool fees are locked and claimable by nobody. Its registrar set is frozen at deploy.
  • PoolSeeder — shared pool creation and single-sided mint.
  • PokepadToken — fixed-supply ERC-20, 1,000,000,000 with 18 decimals, minted once. No owner, no mint, no tax.

Card ids

A card's identity is derived, not assigned:

cardId = keccak256(abi.encode(courtyardContract, tokenId))

Courtyard token ids are 32-byte hashes rather than counters, and the id is literally the hex in the card's URL — courtyard.io/asset/0x654d… is tokenId = 0x654d…. Any form of that link resolves to the same card.

Attestation

Card metadata is signed by Pokepad's resolver so a card's on-chain identity cannot be spoofed. The registry recovers the signer and rejects anything else:

digest = keccak256(abi.encode(cardId, name, symbol, uri))
signature = EIP-191 personal_sign(digest)   // by the attestor key

Spawning stays permissionless — anyone holding a valid attestation can trigger it. The signature constrains what a card is called, not who may create it.

Fees

PoolFeeGoes to
Coin pool1%The coin's creator, 100%
Card pool1%Locked — nobody
PokepadNothing. There is no protocol fee.

What is permanent

  • Liquidity locks. Neither pool's LP can ever be withdrawn.
  • A card token's name and symbol — set in its constructor, with no setter.
  • The one-token-per-card mapping. A second spawn reverts.
  • The locker's registrar set, frozen during deployment.

A single-sided mint leaves a few thousand wei of tick-rounding dust in the registry (roughly 4e-24 of supply). It is unreachable and nothing depends on it.