System of multi-network (multi-tenant) shared ledger

System architecture:

Multi-tenant environment: The system supports multiple tenants to operate on the shared ledger, and each tenant accesses the ledger as a participating node.

Blockchain service interface: The host organization interacts with the shared ledger on behalf of multiple tenants through the blockchain service interface.

Ledger metadata definition manager: Used to define and manage metadata stored on the blockchain, including network participants, entity types, and field definitions.

Ledger management:

Network organization: Generate a network organization in the shared ledger to store data on behalf of the founder organization.

Participant permissions: Define the interaction permissions of each partner organization with the network organization in the shared ledger.

Data verification: Verify the validity of data updates within the network organization through smart contracts.

Data operation and interaction:

Data storage and retrieval: Use blockchain protocols and ledger consensus mechanisms to ensure data persistence and immutability.

Dynamic metadata verification: Perform dynamic verification to ensure that the data stored on the ledger meets the declared metadata requirements.

Smart contract execution: Trigger and execute specific business logic or contract terms through smart contracts.

Indexing and querying:

Merkle tree indexing: Use Merkle tree indexing to improve the efficiency of ledger data retrieval and reduce retrieval time.

Data serialization: Serialize complex data structures into byte streams to optimize storage and transmission efficiency.

Query interface: Provides a query interface that allows users to retrieve data stored on the blockchain through SQL statements.

Event monitoring and triggering:

Event listener: Listen to events on the blockchain and trigger specific operations based on preset conditions.

Process definition: Define the execution process of smart contracts through a graphical user interface (GUI) without writing code.

Triggers and rules: Configure triggers and rules to respond to specific events or data changes on the blockchain.

Security and trust model:

Cryptographic verification: Implement cryptographic verification mechanisms to ensure the confidentiality and integrity of ledger data.

Trust authorization: The host organization, as a centralized trust institution, verifies and authorizes transactions on the blockchain.

Multi-tenant security: Ensure the isolation and security of data between different tenants to prevent data leakage.

Implementation and application:

Multi-scenario applicability: The system is applicable to various scenarios that require sharing data and executing smart contracts, such as supply chain management, financial transactions, etc.

Seamless integration: Seamless integration with the host organization's cloud services, providing end-to-end data management and business process automation.

User interface: Provides an intuitive user interface that allows non-technical personnel to easily define and manage blockchain applications.

What are the main components of the system?

The system mainly consists of a host organization, a blockchain service interface, a ledger metadata definition manager, a network organization, and multiple tenants.

How does the system ensure the security and immutability of data?

The system ensures the persistence and immutability of data through blockchain technology, while implementing an encryption verification mechanism to protect the confidentiality of data.

How to manage the permissions of network organizations and participants?

The network organization stores data on behalf of the founder organization on a shared ledger, and each participant (including partner organizations) has interaction permissions defined by metadata.

What role does the smart contract play in the system?

Smart contracts are used to verify the validity of data updates within the network organization and execute specific business logic or contract terms.

How to optimize the retrieval efficiency of ledger data?

The system uses Merkle tree indexes to improve data retrieval efficiency, and provides a query interface that allows users to retrieve data on the blockchain through SQL statements.

How do event monitoring and triggering mechanisms work?

Event listeners listen to events on the blockchain and trigger specific actions based on preset conditions, such as executing smart contracts, sending notifications, etc.

What is the trust model of the system?

As a centralized trust institution, the host organization verifies and authorizes transactions on the blockchain while ensuring the isolation and security of data between different tenants.

What are the application scenarios of the system?

The system is suitable for various scenarios that require sharing data and executing smart contracts, such as supply chain management, financial transactions, and IoT data management.

What role does the user interface play in the system?

The system provides an intuitive user interface that allows non-technical personnel to easily define and manage blockchain applications, reducing the technical threshold.

How does the system support a multi-tenant environment?

The system supports multiple tenants to operate on a shared ledger. Each tenant accesses the ledger as a participating node, and defines and manages the data and permissions of each tenant through metadata.