On 21 September 2026 the launchpad’s own contracts went to Robinhood Chain mainnet (chain 4663), from commit ca216fb. The site now points at them: every launch goes through our factory, every trade made in the app goes through our router, and the indexer follows the factory the way it follows pons’s two.
| Contract | Address | What it does |
|---|---|---|
| CountdownLaunchFactory | 0xF9380958d982d8e9AbDECa510c01392E2A49938D | launchToken: token, pool, position, lock and opening buy in one transaction |
| CountdownTradeRouter | 0x311163F959f09Ca3BE97b439C414dC0d212A12b5 | buy / sell through SwapRouter02 with the creator and protocol fees |
| CountdownLaunchLocker | 0xC3a2Daf59739bC6d0f0cD79B9529b26487e0cfb1 | holds every position NFT; no withdraw function exists |
| CountdownTokenDeployer | 0x7Cd63cf55Bf83f9C65b01291d4c3719B2393E92A | CREATE2 deploys the token for the factory; no owner, no settings |
Check it yourself
The sources are verified on Sourcify with an exact match of both the runtime and the creation bytecode, and Blockscout imports from it, so the “Contract” tab on each address shows the same Solidity that is in the repository. Three things worth reading on chain before trusting the site: locker.factory() returns the factory, factory.tokenDeployer() returns the deployer, and the locker’s ABI has no function that moves a position out. GET /api/config reports the factory the app is using.
What it cost
Four deployments and three configuration transactions (locker.initialize, addDexConfig, addLaunchConfig) came to under 0.001 ETH at 0.098 gwei. The launch config is the one described in the whitepaper: one billion tokens, a 1% pool, graduation at 4.2 WETH, a 300-block window (about 30 seconds) with 5% per-wallet and 5.5% per-transaction caps, a 0.0005 ETH launch fee, 30% of pool fees to the protocol and a 1% protocol fee on routed trades.
What was tested against the live contracts
Before writing this, a full launchToken was simulated against the deployed factory with the exact call the app makes — an eth_call from a funded address, nothing sent — and it succeeded: token, pool, position, lock and opening buy, for 0.0015 ETH. The router answers with the fee schedule for the token it would have created.
transferOwnership, then acceptOwnership) before that. What the owner can and cannot do is in whitepaper §11; it cannot touch a locked position.The previous factory at 0x1b79E530C86a3b3931f7240182359cac0E7B7af1, built before the pre-mainnet review, never had a launch and is no longer indexed.