networking – Blockchain centralized to recognize legitimate users of unauthorized users

My goal is to create two certified and non-certified blocks. Certified blocks authenticate themselves from non-certified blocks, while both allow game files to work within the centralized network, except that non-certified blocks will not be able to access official servers or legitimate dedicated servers. they must be in their own networks. Provided in a focused system for certified blocks.

Edit

Reason for the centralized block chain:

  1. No intermediary
  2. Without digital rights management
  3. Network authentication
  4. Multiple services including non-certified blocks.

Blocks = Collected data and verified data in a centralized environment.