Is there any mechanism to confirm that the dev's coins will be locked for two years?
Good question, and, Of course!
Firstly, you can always check the transactions on etherscan.io, afterall, we are already in decentralized world, right?
secondly, a smart contract is coming up, dev's coins will be sent to this contract for being locked. you can check the code by then.
just fyi, our contracts code can be checked on etherscan, if interested.
http://microverse.club/contracts/thank you for the question.