0.1% of every trade on QDAY flows here, split over four prizes. Each one asks for something nobody can do today: sign with a key nobody holds, or factor a number nobody has factored. The first claim of the secp256k1 prize starts Q-Day mode for every coin.
From the block the secp256k1 prize is claimed, a coin moves only between the pad, the vault and the Uniswap v4 PoolManager. Coins in ordinary wallets stay where they are; curve buys must land in a vault; pools keep their liquidity. There is no way back.