See reward tokens / yield on Aura Pools
- Select the pool, navigate to the Info tab and open the Rewards Contract Address in etherscanScreenshot 2022-11-01 at 10.53.01.png
rewardRate
is the reward rate for BAL per secondextraRewards(N)
is the contract address for additional rewards (outside of AURA, BAL, ie. LDO, bb-a-USD)- AURA is minted pro-rata to BAL accrued.
- The formula for determining how much AURA is emitted per BAL can be found here:https://etherscan.io/token/0xC0c293ce456fF0ED870ADd98a0828Dd4d2903DBF#code#F1#L85
- A chart can be found here:https://docs.google.com/spreadsheets/d/16VSvgp-ejkra03ykyh-2nlxeCMEDvBZ-LFjuaQo6Ym8/
- A typescript implementation can be found here:
export const getAuraMintAmount = (balEarned: number,global: Omit<Global, 'auraMinter' | 'auraMinterMinted'>,) => {const reductionPerCliff = BigNumber.from(global.auraReductionPerCliff);const maxSupply = BigNumber.from(global.auraMaxSupply);const totalSupply = BigNumber.from(global.auraTotalSupply);const totalCliffs = BigNumber.from(global.auraTotalCliffs);const minterMinted = BigNumber.from(0);// e.g. emissionsMinted = 6e25 - 5e25 - 0 = 1e25;const emissionsMinted = totalSupply.sub(maxSupply).sub(minterMinted);// e.g. reductionPerCliff = 5e25 / 500 = 1e23// e.g. cliff = 1e25 / 1e23 = 100const cliff = emissionsMinted.div(reductionPerCliff);// e.g. 100 < 500if (cliff.lt(totalCliffs)) {// e.g. (new) reduction = (500 - 100) * 2.5 + 700 = 1700;// e.g. (new) reduction = (500 - 250) * 2.5 + 700 = 1325;// e.g. (new) reduction = (500 - 400) * 2.5 + 700 = 950;const reduction = totalCliffs.sub(cliff).mul(5).div(2).add(700);// e.g. (new) amount = 1e19 * 1700 / 500 = 34e18;// e.g. (new) amount = 1e19 * 1325 / 500 = 26.5e18;// e.g. (new) amount = 1e19 * 950 / 500 = 19e17;let amount = simpleToExact(balEarned).mul(reduction).div(totalCliffs);// e.g. amtTillMax = 5e25 - 1e25 = 4e25const amtTillMax = maxSupply.sub(emissionsMinted);if (amount.gt(amtTillMax)) {amount = amtTillMax;}return amount;}return BigNumber.from(0);};
- A solidity library implementation can be found here (AuraMining): https://etherscan.io/address/0x744Be650cea753de1e69BF6BAd3c98490A855f52
Last modified 7mo ago