King of the Hill
Where the protocol's share of every trade goes: into a pot, and at the close of each round, into the coin at the top of the board — bought, and burned.
The stream
Every trade on every coin launched here pays its pool fee. The creator takes 80% of what the launch's
position earns; the protocol takes 20%. Of the protocol's part, buybackBps goes to the buyback
sink and the rest to the treasury — and buybackBps is 10,000, so all of it goes to the sink.
1% pool fee ── the launch's position ──┬── 0.80% → creator (or burn, or holders)
└── 0.20% → buyback sink → the round's buy, burned
At the default 1% fee that is 0.20% of everything traded through the launchpad; at 2%, 0.40%. Not of profit — of volume. The treasury's income is the launch fee, and nothing from trading.
This part is code, not intention: it is how FeeVault.collect splits every sweep, and anyone can
read buybackSink() and buybackBps() off the vault.
The board
The leaderboard ranks every coin launched here by market cap, live. The coin on top when the round's clock runs out holds the hill: the pot is spent buying it on the open market, and every coin bought is sent to the dead address. Its supply really goes down, and the chain still says so.
The protocol's own token, when there is one, does not compete — it is not a contender for the hill. There is none on Unichain yet.
The pot
What the sink holds right now — ETH, WETH, and the pair assets the protocol's share arrives in — valued at today's prices. The leaderboard shows that figure, not a forecast and not an entitlement: coins in hand, which anyone can check against the sink's balances on Uniscan.
On every coin launched since the fee hook, the protocol's share arrives in the pair asset only. On coins from before it, part of it arrives in launched coins — a sell there pays its fee in the coin being sold. Those are not sold into their own charts to fund someone else's buy; the analytics page reports them separately.
What is automatic and what is not
The split, and the stream into the sink, are automatic. The round's buy is not: at the deadline
the project's treasury script (treasury/ in the repository) reads the board, swaps what the sink
holds into the winning coin through an aggregator, and sends every coin it receives to
0x…dEaD — one transaction a round, signed by the sink's key. Each settled round is recorded in the
site's source, with the coin, the amount burned, the ETH spent and the transaction hash, and shown
under Burned so far on the leaderboard.
Nothing about that step is a promise the contracts enforce: the sink is an address the owner can
change with setBuybackSink. What keeps it honest is that it is public — every round's burn is a
transaction anybody can open, and a pot that was not spent would still be sitting in the sink for
anyone to see.
Rounds
The first Unichain round's deadline is set when the leaderboard is announced; the clock on the page is the source of truth. Past rounds, with their burns, are listed there.
