Vyper 🐍

The contract here is a sublinear staking contract: if you are in the whitelist (specified as an ERC1155 collection), then you can stake N coins, and get a return of N ** 0.75 coins per slot, for as long as the contract has coins to pay for it. There is a fundedUntil mechanism that ensures that if the contract runs out of money, every staker gets rewarded for every slot up to the fundedUntil timestamp, and the mechanism doesn't turn into a fractional reserve.

https://github.com/ethereum/research/blob/master/sublinear_staking/code.vy

Bounty of total 2 ETH for identifying any bugs / vulnerabilities in the contract and proposing specific fixes, if multiple issues are found the bounty will be split based on severity.

Amount: 2 ETH

@bountybot

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The main vulnerability is clearly the unclarified whitelist? Nearly all options to establish eligibility in crypto are squatted by human farms. Even proof of passports turned out vulnerable. Depending on the intention of the contract, adding proof of attendance (conferences or idenanetwork) could mittigate that issue?