That's a scam site. Do not use!!!
It's not a scam site. It's the only "Bitcoin Silver" coin in circulation that I know of. The symbol is BTCS and has been trading on Etherdelta and seems to be gaining some traction. They are working on getting on other crypto markets and are working to have a wallet out by the end of the year. It is an Ethereum Token coin, not another bitcoin fork, like this project is. I doubt this project will be able to continue to use the name "Bitcoin Silver" as they have no markets anywhere as the other coin beat them to the punch. Personally, there are enough forks of bitcoin and bitcoin's blockchain is too damn long anyway and shouldn't be forking off into "new" coins. Transactions and confirmations take too long. I've been mining Bitcoin Gold since the disaster of a launch and confirmations are extremely painful. The Bitcoin Silver token on Etherdelta (being an Ether token) has extremely fast transactions without the inherent problems of the Bitcoin blockchain. I have no idea if the Bitcoin Silver token group will accomplish everything they have planned as it is very ambitious but their coin is extremely cheap right now, being moved around quite a bit on Etherdelta, going to be on multiple markets soon, and transactions on their network are lightning fast compared to any bitcoin based crypto. I'd rather use it than real bitcoin. Real bitcoin is old and slow, and cloning/forking off of that isn't that great of a solution.