# Opening a chain later

Pangea v4: how a coin launches today. Every new launch is a v4 launch. A v4 coin lives on up to six chains: Robinhood Chain, Base, Ethereum, BNB Chain (BSC), Solana and Elysium. The four EVM chains and Solana carry LayerZero and Hyperlane; Elysium carries Hyperlane only. This tab is all of v4: creating a coin, chains and pairs, fees and holder rewards, opening a chain later, handing over, launching from your own wallet, the Bundle Kit, bridging, contracts and the API. Coins launched before v4 are in the v3 and v2 tabs.

A coin launched on one chain, Solana included, can later open each of its other listed chains, one at a time or several at once, in any order. For example: launch on Solana, later open Robinhood Chain, Ethereum, Base and BNB Chain.

## Who may open a chain

- On the coin's home chain, the chain it was first launched on: the creator, any time.
- On another listed chain within 1 hour of the launch: the creator, directly.
- After that: whoever the current creator authorises, from the home chain, for that chain and until a deadline. Once the creator role is renounced, anyone may ask for that authorisation.
- Never the platform: Pangea cannot open a chain or mint a coin's 1B.

## What the opener chooses

- The opening price, any price. There is no floor, no forced price and no platform seed.
- The form starts at a 3,000 dollar market cap for that chain (its 1B tokens), shown and editable: change it to any price you want. Nothing is set for you.
- That chain's 1B is minted and seeded into the coin's locked pool position from that price upward, as at a launch.
- Optionally their own cash as two-sided liquidity: coins from their own opening buy plus pair token, of any size, in a separate position that is the opener's own and can be withdrawn, so the pool can be bought and sold from the start. With none, the pool opens with the chain's tokens only.
- Launch buys and dev buys, in the same transaction, after the seed.
- Before they sign, the page shows the market cap their price means on this chain beside the coin's other chains, and says plainly: your price, your risk; arbitrage moves it toward the other chains, only when that is profitable.

## The payout wallet of a chain opened later

- Opening Solana later asks for the coin's Solana payout wallet then, when the coin has none yet, and requires it: the home chain sets it in the same step (the EVM payout wallet is kept), and the open authorisation sent next carries it to Solana.
- Opening another EVM chain reuses the coin's EVM payout wallet. A Solana-home coin with no EVM payout wallet names it on Solana first (signed by the coin's Solana creator, the Solana payout wallet kept), then opens.
- There is no separate 'add a Solana key first' step. Once the creator role is renounced, no payout wallet can be named any more: that chain's creator share is burned.

From there the arbitrage bot brings the chains to one price, over either transport, trading only when that is profitable. Arbitrage is open to anyone.

> **Note:** How v4 prices a crossing: [The signed gap price →](https://www.pangea.trade/app/docs/v4#v4-gap-price)

Part of the Pangea documentation, v4 tab: https://www.pangea.trade/app/docs.md