The ASCII + “PosM” comments live in the one shared Uniswap v4 Position Manager contract (the periphery contract that mints/manages the ERC-721 position NFTs).

• Any token whose liquidity is provided/locked via the standard Uniswap v4 PosM will have its positions held by that contract, so the Easter egg is “present” in the sense that the LP is managed by the code that contains the art.

• This includes every locked LP from pools dot trade (and any other project using the official PosM on any chain where Uniswap v4 is deployed: mainnet, Base, Unichain, Robinhood chain, etc.).

• It is not copied into each individual token’s own ERC-20 contract. Looking at a random token’s source usually won’t show the possum; you have to look at the PosM contract that owns the position NFTs.

In short: the meme is that the Possum is sitting inside the liquidity infrastructure of every Uniswap v4 position that uses the official manager