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Each token’s canonical Uniswap V3 pool is reserved during launch, before curve trading. The pair is the 18-decimal launch token and Arc canonical 6-decimal ERC-20 USDC at fee tier 10000 (1%) with tick spacing 200. At graduation, Cooket mints a full-range position from tick -887200 to 887200. The position receives up to 200 million tokens and 7,245 ERC-20 USDC after exact native-to-ERC-20 conversion, subject only to the tightly bounded rounding residuals described in Graduation. The web implementation:
  • validates the pool pair, factory, fee tier, QuoterV2, SwapRouter, and the periphery’s shared no-WETH marker;
  • quotes exact-input buys and sells through QuoterV2;
  • uses ERC-20 USDC for buys and launch tokens for sells;
  • applies a reviewed minimum output and a five-minute transaction deadline;
  • requests an exact approval when allowance is insufficient and re-reads it before submission;
  • submits exactInputSingle with zero native value.
The source also contains a bounded diagnostic simulation helper, but the current graduated component uses the reviewed transaction path and wallet transport. Configuration support and checked-in addresses do not prove current public service health or market liquidity.