Rhubarb (RHUB) is an ERC-20 token deployed on Arbitrum One. It is a self-launched memecoin built around its own token contract, constant-product bonding curve, and automatic migration into a Uniswap v4 pool. The launch did not use a third-party launchpad: the sale and migration mechanics are handled by Rhubarb's own contracts. After the curve collected 69,000 ARB, it closed permanently and seeded the remaining RHUB and ARB into the live RHUB/ARB Uniswap v4 pool