> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cooket.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# Permanent liquidity custody

> Ownerless per-token LP custody and residual handling.

Graduation mints the Uniswap V3 position NFT directly to a dynamically deployed `PermanentLPCustodianV3` dedicated to the launch token. There is no single global custodian address.

The custodian is ownerless and non-upgradeable. Its code exposes no NFT transfer or approval function, no liquidity-decrease function, no rescue path, and no delegatecall surface. Once the graduation manager binds the canonical full-range position ID, principal cannot be withdrawn through the custodian's interface.

Anyone may call `collectFees`. The custodian asks the canonical position manager to send collected fees directly to `PermanentLPFeeVaultV3`, which authenticates the custodian and position before accounting for the assets. Collection does not call `decreaseLiquidity`; it collects fees owed to the position.

Mint rounding leftovers are held by a separate dynamically deployed `PermanentResidualEscrowV3` per token. That escrow accepts only the launch token, canonical USDC, and sub-base-unit native-USDC dust from the bound settlement path. It exposes no withdrawal, sweep, approval, or forwarding method.

“Permanent” describes these contract interfaces. It does not eliminate smart-contract, Uniswap V3, token, chain, or economic risk.