Why the rulebook rides outside.
A marketplace for Uniswap v4 hooks with a launchpad built in, on Robinhood Chain (chain id 4663). Builders stack up to five audited swap-rule blocks into a hook, publish the stack as an onchain blueprint that routes its author a royalty whenever another launch runs it, and launch fixed-supply tokens behind it through an instant pool or a ten-tranche bonding curve. The launchpad holds every graduated LP position with no removal function, the hook is attached at pool creation and immutable from then on, and every parameter is readable on chain before the first trade clears.
Launchpads solved distribution years ago. What they never solved is the day after: 45% of liquidity-lock promises were broken within a year, and rug pulls destroyed $1.8B in 2025 alone. Promises are the weak layer. We removed the promise.
Every market here carries its swap rules as an attached hook: visible before the first trade, immutable after graduation, held by a contract with no withdraw function. Not a pledge on a website. A property of the pool.
Uniswap v4 made pools programmable, and over 1,000 hooks shipped in its first months. But hook authors earn nothing when their design gets copied. Here a published stack pays its author a royalty on every launch that runs it, routed by the registry, capped by the contract.
The build log
First block prototypes on the Robinhood Chain public testnet, two weeks after the testnet opened.
The five-block set froze after the audit round; everything since has been parameters, not new code paths.
Mainnet. Registry, curve and locked-LP factory live on chain id 4663 in the chain's first week.
The blueprint marketplace opened with author royalties; the leverage factory shipped its first permissionless markets.