A few questions:
Do signin systems prevent bots? If so, how to I create a signin system for my faucet? Willing to pay for help coding and implementing.
We can make a faucet script from scratch with register and login system for just $100. Pm me if you're interested.
OP seems to be asking for an email-based login system which is something that your own site smashbtc.com doesn't seem to have.