The Ethereum Virtual Machine or EVM is the runtime environment for smart contracts in Ethereum.
User may or may not Sign In login at website. Signed in users have the right to access more benefits at the Website, than not log in users. User can sign in using Facebook account. If you wish to start making bets, you must deposit Bitcoins into your account from a source of which you are the only legitimate owner or use free faucet. After deposit is confirmed at Bitcoin Blockchain, it may be used to make bets.