How do ICO's set it so when you send them ETH BTC or LTC they send you their token back i mean alright ETH can be done thru smart contracts even though i dont know how to set it up but other then that how does the BTC and LTC transaction part work?
How do ICO's set it so when you send them ETH BTC or LTC they send you their token back i mean alright ETH can be done thru smart contracts even though i dont know how to set it up but other then that how does the BTC and LTC transaction part work?