Every buy and every sell pays 5%. On Arc, USDC is the native currency — so that 5% is already USDC the moment it's taken. Nothing is swapped, routed, or priced by an oracle on the way to you.
4% falls to holders in orbit. 1% to the protocol.
stay centred.
The toll is taken on the USDC leg of the trade, in all four shapes a Uniswap v4 swap can take, and it is grossed up on the exact-output ones so the number is always exactly 5% of what you paid or what the pool released.
It never touches the token. Sending $CENTRE to a friend, a bridge or a cold wallet is an ordinary ERC-20 transfer with nothing skimmed and nothing burned — the contract has no owner, no mint, no pause and no blacklist.
The operator can lower the toll. There is no function anywhere that raises it.
Put $CENTRE in the well and USDC starts falling towards you. How much of it depends on where you're orbiting — and you move inward by leaving your position alone.
Where every position starts, the moment it's deposited. One share of the flow for every $CENTRE you put in.
Seven days without touching your position, then you pull yourself in. Two shares for every $CENTRE.
Thirty days. Four shares for every $CENTRE, and the deepest the well goes.
Age is weighted by amount. Add to a mature position and it drags you back outward in proportion to how much you added — maturing a dust position for thirty days and then dropping a bag in at ×4 isn't a strategy, the deposit itself demotes you.
Leaving throws you out. A withdrawal of any size puts you back in the outer orbit and restarts the clock. USDC you'd already earned stays yours.
Nothing is ever locked. There is no lock-up anywhere in the well. Withdraw whenever you want, in any state the contract is in.
A fee-sharing token has to turn its fee into something worth holding. That conversion is where these things break: a router that moves, a pool with no depth, an oracle that goes stale, a keeper that stops paying for gas.
USDC is Arc's gas token. In a Uniswap v4 pool the native side is currency0 = address(0), and on this chain address(0) is USDC. The toll is taken there. It is a stablecoin at the instant it exists, and the path from a trade to your balance has no moving parts in it at all.
Taken straight off Circle Arc, no server in between.
