Those are Smartcoins. The Bitshares platform offers many of them, and you can even create your own coins and assets that people can trade. Bitshares uses its own blockchain though. Bitcoin uses its own blockchain. There are probably 100 different blockchains by now.

We chose the Bitshares (aka: Graphene) blockchain because it has proven to be able to process over 100,000 transactions per second (more than visa and mastercard combined) and transactions complete in just 3 seconds or less.

The Bitcoin blockchain can handle up to 7 transactions per second, and each one of those transactions takes 10 minutes or more.

With the Bitshares platform (and wallets) being the fastest, most scalable out there, it was the perfect choice for a Point Of Sale system like BlockPay. It's faster and safer than cash.

Try out the Smartcoins Wallet if you can, I will send you some money to test it out! :)