ChainCatcher message, Ethereum co-founder Vitalik Buterin has posted a 'bug bounty for the Sublinear Staking Contract' on Bountycaster, with a total bounty amount of 2 ETH for identifying any errors/vulnerabilities in the contract and proposing specific fixes. If multiple issues are found, the bounty will be distributed according to severity.
The specific requirement is: In its released sublinear staking contract, if the user is on the whitelist (designated as an ERC1155 collection), they can stake N tokens, and each slot will earn N ** 0.75 tokens in return, as long as the contract has tokens to pay it. There is a fundedUntil mechanism that ensures that if the contract runs out of money, each staker will receive rewards during each period before the fundedUntil timestamp, and this mechanism will not turn into a fractional reserve.