feat: Implement NIP-89 for DVM to Advertise ZK Proof Generation Services

[AbdelStark]

Description

We need to implement NIP-89 (Recommended Application Handlers) for our Data Vending Machine (DVM) to advertise its Zero-Knowledge (ZK) proof generation services over the Nostr network. This will allow Nostr clients to discover our DVM as a handler for specific event kinds related to ZK proof generation.

Objectives

1. Implement the creation and publishing of kind:31990 events to describe our DVM's capabilities.
2. Create a system for updating and managing these events as our DVM's capabilities change.
3. Implement handling of incoming requests based on our NIP-89 advertisements.
4. Integrate this functionality with our existing DVM infrastructure.

Implementation Details

1. Create Handler Information Events (kind:31990)

• Implement a function to generate kind:31990 events for our DVM.
• Define the specific event kinds our DVM supports for ZK proof generation and verification.
• Create separate kind:31990 events for different types of ZK proofs if necessary.

2. Event Management System

• Develop a system to manage our kind:31990 events:
  • Store current advertisements
  • Update advertisements when our capabilities change
  • Periodically republish to ensure visibility

3. Integration with Existing DVM Infrastructure

• Connect the NIP-89 handling system with our existing DVM proof generation and verification systems.
• Ensure that our DVM can scale to handle potential increased load from Nostr-based discovery.

4. Testing

• Develop unit tests for kind:31990 event creation and parsing.
• Create integration tests to ensure proper handling of incoming requests.
• Perform end-to-end tests simulating discovery and usage of our DVM through Nostr.

6. Documentation

• Update our API documentation to include information about our NIP-89 implementation.
• Create user guides explaining how to discover and use our DVM through Nostr.

Tasks

1. Implement kind:31990 event creation function
2. Define supported event kinds for ZK proof operations
3. Develop event management system
4. Integrate NIP-89 system with existing DVM infrastructure
5. Write unit tests for event creation and parsing
6. Create integration tests for request handling
7. Perform end-to-end tests
8. Update API documentation
9. Create user guides for Nostr-based discovery and usage

Considerations

• Security: Ensure that exposing our DVM through Nostr doesn't introduce new vulnerabilities.
• Privacy: Consider the implications of advertising our services on the Nostr network.
• Scalability: Prepare for potential increased usage resulting from easier discovery.
• Interoperability: Ensure our implementation works with a variety of Nostr clients.

Success Criteria

• Our DVM successfully publishes kind:31990 events advertising its ZK proof services.
• Nostr clients can discover our DVM and its capabilities through NIP-89.
• Users can successfully request ZK proof generation and verification through the advertised services.
• The system handles updates to our capabilities gracefully.
• Performance remains stable under increased load from Nostr-based discovery.

Resources

• NIP-89: Recommended Application Handlers