Overview

How the launchpad works, from the sealed rules to the locked pool, in one page.

Launc Cash is a token launchpad on Robinhood Chain. One contract, LauncSealHouse, creates every token, runs its bonding curve, and graduates it into a Uniswap v3 pool. Each launch carries its own rules, written in the transaction that creates it. Nothing in the contract can change them afterwards.

Sealed is not safe. Sealed rules only guarantee that fees and limits never change. They say nothing about price: a token launched here can still fall hard, and the early-buy levy means the earliest buyers pay more than later ones.

Key numbers

Supply per token	1,000,000,000, 18 decimals, minted once
Sold on the curve	800,000,000
Pair assets	ETH, USDG, official stock tokens
Graduation target	set by the creator; the site suggests about $10,000 of the pair
Protocol fee	fixed at deployment, at most 1% (proposed 0.50%)
Creator fee	0% to 1%, sealed per launch
Early-buy levy	0% to 50% at launch, falling to 0% within at most 24 hours
Largest single buy	0.1% to 100% of supply, sealed per launch
After graduation	Uniswap v3 pool, 1% fee tier, full-range position owned by the contract

The life of a launch

1. Sealing

The creator calls launch with a name, ticker, an optional note, the pair asset, the graduation target and four rule values. The contract checks each value against the shared limits, turns away any pair other than ETH, USDG and the official stock tokens, stores the rules and mints the supply to itself. If the creator sends a first buy along, it runs right after, under the full opening levy.

2. The curve

Prices follow a constant-product curve with a virtual reserve of one quarter of the target. Buying moves the price up, selling moves it back down along the same formula. Every division rounds in favour of the curve, which is why selling every token back would always be paid in full: this is checked by invariant tests on every build.

3. The levy

Buys pay an extra percentage that starts at the sealed rate and falls in a straight line to zero across the sealed window. The levy is collected into a pot that belongs to the launch. Sells never pay it.

4. Graduation

When the 800 millionth token is sold, trading on the curve stops and anyone can call graduate. The contract opens the token, creates (or finds) its Uniswap v3 pool at the 1% tier, sets it to the curve's final price and adds everything raised plus the levy pot as one full-range position. Tokens the position does not need are burned. The position belongs to the contract, and the contract has no function that removes liquidity.

5. After graduation

The pool trades like any Uniswap v3 pool. Its 1% trading fee accrues to the position; collectPoolFees moves it into the creator and protocol balances in the sealed ratio, and claim pays those balances out.

Practice mode

Until the owner deploys the contract and its address is set on this site, the launch desk, the coin pages and the explore board work in practice mode. The math is a line-for-line TypeScript copy of the contract's, kept in your browser. Nothing is signed or sent, and every practice screen is marked as such.