Royalties

Every swap through a v4 Marketplace pool pays each active v4 hook in its stack, in the swap's own currencies.

How it is taken

After the swap, the hook stack computes each hook's share of the unspecified side (the output of an exact-input swap), mints the total as ERC-6909 claims on the PoolManager to the royalty ledger, and returns it as the hook's delta. The swapper receives that much less.

Vesting

The author's 80% lands in a daily bucket and becomes claimable seven days later. Claims burn the ledger's claims and send the token itself. Unvested royalties are what repays LPs after a proven exploit.

The burn reserve

The other 20% stays in the reserve. burnBuy(path, amountIn, minOut) is open to anyone once an hour: it swaps the reserve along pools the timelock allowed, at most three hops and half a percent of price move each, into $V4M, sends 99% to the dead address and 1% to the caller. The keeper never calls it.