On April 25, 2020, China launched the BSN system, which is expected to revolutionize the methods of using blockchain technology and ultimately the worldwide blockchain internet . The system, in its international version, also supports public blockchains, i.e. those that support cryptocurrencies such as BTC, ETH or BNB.

Benefits offered by the BSN system

The main benefits the system offers are:
- inteoperability between supported blockchains thanks to the funcionality of handling with a single private key

- These keys can be assigned by dApp administrators to roles that define the ability to access particular smart contracts methods
- the possibility of earning money by offering hardware resources to BSN system clients*
- access to IDEs facilitating dApp programming and management

* We are already at the issue of making money then let's discuss the issue of billing right away. The whole process is that on a weekly basis, each public city node (PCN), which are the basic unit of the BSN network, collect fees from users, account for their costs and transfer to the billing company. It is this billing company that redistributes to direct BSN participants such as:
- resource providers
- blockchain providers, called frameworks in BSN nomenclature, who customize and implement them into the system
- BSN portal operators

However, promoters of the BSN system see the greatest advantage in terms of implementing blockchain consortia:
- reducing costs by eliminating the necessity of installing nodes at each member of the consortium
- elimination of the complexity associated with the configuration of the network supporting a given blockchain.

Structure of the BSN network and the role of the various parts of the system:

The BSN consists of equivalent nodes called city node (PCN). These nodes are pools of computing power, storage and bandwidth allocated to data centers and cloud services deployed in the BSN. They also provide gateways that are interfaces between dApps and developers outside the BSN. The PCN consists of the following subsystems:

Multiple framework - Provides solutions to expose more and more blockchains as sub parts of the PCN. Allows you to use them all with a single private address.

Shared peer nodes - Partner systems that provide resources to PCNs. This is also where peers are distributed for users to use.

Authority chain - The permissions chain stores users' keys and the permissions they are entitled to. These permissions define which dApps and smart contract methods individual users have access to.

CA management - User transaction key lifecycle management system.

PCN gateway - The system through which interactions between dApps deployed in BSN and external systems pass. Additional features include:
- user identity verification
- transaction validation
- transaction routing
- flow limit control
- load balancing
- gateway API
- SDK

PCN manager - A management system that performs the following tasks:
- dApp management
- implementing smart contracts
- configuring peers
- managing key certificates
- configuring dApp authorities
- obtaining operational data

BSN Empowerment Platform (NOC) -

The platform responsible for the maintenance of the BSN system. This is provides a set of APIs through which portals call the correct BSN functions.

API types in the NOC:

PCN Managament - is used to obtain PCN information, about price lists, etc.

Framework Managament - is used to obtain information about frawmewarks, sold resources within them, etc.

dApp Managament - is used to manage the lifecycle of dApps and assign them resources

PCN information management - is used to obtain information about the operational status of MNCs including information about blockchains and operations performed on them

Data usage information - is used to obtain statistics on the use of danyh by the dApp