How it works

A launch has three phases.

Phase 1: deposit

The launch page uploads your logo and asks the keeper for a quote. You pay one deposit in ETH on Robinhood Chain from MetaMask, with a reference in the transaction data. The deposit covers:

• the Pons launch fee, 0.0005 ETH,
• the Robinhood Chain gas, about 0.0005 ETH,
• the pump.fun creation, about 0.03 SOL, paid by the keeper and converted to ETH at the current rate,
• a small margin.

The total is about 0.0045 ETH at today's rate.

Phase 2: launch

The page gives the keeper the transaction hash. The keeper reads the transaction on Robinhood Chain, checks it and runs the pipeline, in this order:

1. Pons, on Robinhood Chain: HingeLauncher.launch creates the coin on Pons with a dedicated HingeVault as the creator fee recipient.
2. pump.fun, on Solana: create_v2 creates the coin with the same name, ticker and logo.
3. Fee sharing on pump.fun: the creator fees are split between your wallet and Hinge, once.
4. The coin is registered and both token addresses are shown to you.

Phase 3: after the launch

The two coins live their own life. Hinge does not trade them. Creator fees accumulate on both chains, and you claim yours:

• pump.fun: from pump.fun, with your own wallet.
• Pons: the vault splits them between your Robinhood address, if you gave one, and Hinge. split() is public.

Why the prices differ

The two curves open at different values (about $4.3K on Pons and $3.2K on pump.fun at today's rates), use different assets (ETH, SOL) and take different fees. Each side then follows its own buyers. Nothing in Hinge ties them together.