What is Digital Player Card? 

Digital Player Cards are digital data units stored on a blockchain ledger. Each Digital Player card acts as an authentication certificate, proving that a digital asset is unique and cannot be exchanged. A Digital Player Card gives a single person sole ownership of a digital asset. 

What is Blockchain? 

A blockchain is a digital ledger of transactions and a technique  storing data that cannot be hacked, altered, or manipulated. Blockchain duplicates and distributes its digital ledger of transactions over a network of computer systems.