BCAT is an ERC20 Token of the Internet business learning community [Big Cat Castle]. It has the immutability, negotiability and destroyability of the blockchain. BCAT is a digital asset based on blockchain technology. It is intended to use blockchain technology pragmatically to activate the activity of our Internet ontology services, business increment, community quality, and serve the real economy and start-up companies. BCAT is a typical application of blockchain applications that truly serve the real economy, and it has also achieved complete legal compliance at the financial level.