Contracts

A twain coin runs on three sets of contracts: twain's own, Pons V2's and Uniswap v4's. Every address below links to Robinhood Chain's Blockscout explorer.

twain contracts

• TwainLauncherBlockscout

  Launches every twain coin through Pons V2, creates its fee vault and makes the creator's optional first buy, all in one transaction. It holds no funds between transactions.

  0xc8eF70B7Bc47c2D63fD38Cf7124f9b322F949296
• TwainFeeVault

  One per coin, created at launch: the coin's creator fee recipient at Pons. It splits what it receives 60/40 between the creator and twain. No owner, no upgrade path.

  Each coin has its own. The address is on the coin's page, in the About tab. Find a coin

twain's contracts are open source and verified, but have not been externally audited. The source is published on Sourcify.

Pons V2 contracts

• Launch factoryBlockscout

  Creates every coin and its launch curve, moves a completed curve into its Uniswap pool, and keeps the launch terms and the list of pair assets.

  0x7ed598bcef8bd9edd8c97a195c6d13f40801ec7e
• Fee escrowBlockscout

  Holds the fees owed to each recipient, including every twain fee vault, until they are claimed.

  0xd3afeb2a57f70ef218aa82451c51b2fb0416ac9e
• Meme hookBlockscout

  The hook on every graduated pool. It charges the fee on each swap and credits its parts.

  0xe5e702641ea86f4ae6cc3cdaed2b886f976be044
• Launch lockerBlockscout

  Holds every graduated pool position and the coins kept back from it. It has no withdraw function.

  0x267444D099b10fB5Ed7c3Cc7B7c767AdcA574952

Pons' contracts are verified on Robinhood Chain's Blockscout. Each coin also has its own launch curve contract, created by the factory at launch; its address is on the coin's page.

Every coin is its own contract too, created by Pons: an ERC-20 with 18 decimals and a fixed supply of 1,000,000,000, minted once, straight to its launch curve. Its name, ticker, logo, description and links are stored in it. It has no owner and no mint function; any holder can burn their own coins.

Uniswap v4 on Robinhood Chain

After graduation every coin trades in a Uniswap v4 pool. These are Uniswap's own contracts, used as they are.

• PoolManagerBlockscout

  Holds every Uniswap v4 pool, including every graduated coin's.

  0x8366a39cc670b4001a1121b8f6a443a643e40951
• Universal RouterBlockscout

  Executes the site's pool swaps.

  0x8876789976decbfcbbbe364623c63652db8c0904
• V4 QuoterBlockscout

  Quotes pool swaps before you sign.

  0x8dc178efb8111bb0973dd9d722ebeff267c98f94
• StateViewBlockscout

  Reads pool prices and liquidity.

  0xf3334192d15450cdd385c8b70e03f9a6bd9e673b
• Permit2Blockscout

  Approvals for pool swaps that pay with a token (selling a coin, buying with a stock token).

  0x000000000022D473030F116dDEE9F6B43aC78BA3

Network

Robinhood Chain

Chain ID

4663

Explorer

robinhoodchain.blockscout.com

Who controls what

twain

The twain launcher has an owner: twain. Ownership can be handed over in two steps, but never renounced. The owner can do exactly two things:

• pause and resume new launches through twain;
• change the address that receives twain's 40% of each vault's income.

The owner cannot touch any coin, curve, pool or locked liquidity, or any fees owed to a creator. Fee vaults have no owner at all, and no twain contract can be upgraded.

Pons

Pons V2 has its own owner, a multisig. For new launches, Pons can change its launch fee, the curve terms and the list of pair assets. For coins already launched, it cannot change their fees, tax or pool, cannot pause trading, and cannot move locked liquidity.

It can redirect a coin's creator fee recipient, its twain fee vault, to another address. Such a change takes effect only after a public 3-day timelock. Pons has used this power before, for example at creators' request. While a change is pending for a twain coin, the coin's page shows a warning for those 3 days. Fees the vault has already received stay claimable.

Uniswap

Uniswap v4's contracts are immutable.

These limits hold at the contract level. They rely on Robinhood Chain itself, and on the contract of each pair asset, which are covered in Risks.