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V2 is the current launch system. V1 is deprecated. This page exists to help V1 token holders and integrators understand what changed.

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Quick comparison

TopicV1V2
Launch contractTokenFactory (single contract)InkyPumpHook (UUPS proxy) with swappable modules
Launch contract address0x1D74317d760f2c72A94386f50E8D10f2C902b8990x4cC8F6d5B7cE150CCC0A9B7664532B1283b96AC4
Curve typeExponential, price = a * e^(b * x)Linear with configurable gain multiplier (1x to 21x)
Target raise3 ETH (hardcoded)Configurable per launch, 1 to 5 ETH
Creation fee0.001 ETHNone
Base trade fee5 percent2 percent (1 percent protocol + 1 percent variable)
Anti-snipeFee decay 30 percent to 5 percent over 25 secondsCaptcha gate for 0 to 60 seconds (no fee penalty)
Creator earningsBuilt into the 5 percent feeConfigurable share of the 1 percent variable fee
FinalizationAdd to Uniswap V2 pair, burn LPBond to a Uniswap V4 pool with a 0.1 percent swap fee
ArchitectureMonolithicModular: separate Hook, TradingModule, ViewModule, SaleSplitCalculator
UpgradeabilityUUPS proxy on one contractUUPS proxy with separately upgradeable modules
Referrals on chainEvent field on every tradeSeparate Referral event emitted only when referral code is present

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Fee math compared

V1 (after the 25 second anti-snipe window): 
fee = ethIn * 0.05
netForCurve = ethIn - fee
V2 (constant for the full token lifetime, regardless of when you trade): 
protocolFee = ethIn * 0.01
variableFee = ethIn * 0.01
netForCurve = ethIn - protocolFee - variableFee   // 98 percent
creatorShare = variableFee * (creatorFeeSplitBps / 10000)
buybackShare = variableFee - creatorShare

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What stayed the same

  • Total supply is still 1,000,000,000 tokens
  • Tokens still bond from an initial sale pool to an automated market maker
  • The tokens_v2 table in the API still returns the same shape for V2 tokens that the tokens table did for V1, with extra V2 fields added
  • The leaderboard still counts trade volume across both versions, with separate formulas
  • The Emperor of the INK auction still works for any token, V1 or V2

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What is new in V2

  • Per launch target raise (1 to 5 ETH)
  • Per launch curve steepness (1x to 21x gain multiplier)
  • Configurable creator vs buyback fee split, updatable after launch
  • Optional anti-snipe window with captcha gate
  • Scheduled launches (set a start time in the future)
  • Optional creator prebuy at launch
  • On chain referral attribution via a dedicated event

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Should you migrate

There is no migration path. V1 tokens stay on V1 contracts and continue to trade. V2 is for new launches.