ICN System Architecture Overview
Introduction
The InterCooperative Network (ICN) is a federated compute, resource, and governance protocol designed to provide a programmable, governable, and resilient digital commons. This document provides a comprehensive overview of the system architecture, component interactions, and key design principles.
Core Architectural Principles
1. Federated Design
ICN is built as a federation of autonomous nodes that can form cooperatives, communities, and larger federations. Each node maintains sovereignty while participating in the larger network.
2. Deterministic Execution
All core runtime, economic, and governance logic is designed to be deterministic, enabling verifiable computation and consistent state across the network.
3. Scoped Trust
All actions and resources are contextualized by Decentralized Identifiers (DIDs) representing individuals, communities, cooperatives, or federations.
4. Explicit Governance
Network operations, resource access, and protocol evolution are controlled by explicit, versioned policies defined in the Cooperative Contract Language (CCL) and compiled to WASM.
5. Dual Economic Model
- Mana: Regenerating capacity credits for compute metering and Sybil resistance
- Tokenized Assets: Support for fungible and non-fungible tokens representing goods and services
System Components
Core Runtime Layer
┌─────────────────────────────────────────────────────┐
│ ICN Node │
├─────────────────────────────────────────────────────┤
│ HTTP API Server (icn-node) │
├─────────────────────────────────────────────────────┤
│ Host Runtime (icn-runtime) │
│ ┌─────────────┐ ┌──────────────┐ ┌──────────────┐ │
│ │ Host ABI │ │ Job Manager │ │ WASM Runtime │ │
│ └─────────────┘ └──────────────┘ └──────────────┘ │
├─────────────────────────────────────────────────────┤
│ Service Layer │
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌───────────┐ │
│ │ Mesh │ │ Economy │ │ Govern │ │ Identity │ │
│ └─────────┘ └─────────┘ └─────────┘ └───────────┘ │
├─────────────────────────────────────────────────────┤
│ Storage & Networking │
│ ┌─────────────┐ ┌─────────────────────────────────┐ │
│ │ DAG Store │ │ P2P Network (libp2p) │ │
│ └─────────────┘ └─────────────────────────────────┘ │
└─────────────────────────────────────────────────────┘
Service Architecture
Identity Service (icn-identity)
- Purpose: DID management, credential verification, execution receipts
- Key Functions:
- DID generation and resolution
- Cryptographic key management
- Verifiable credential handling
- Execution receipt creation and validation
Governance Service (icn-governance)
- Purpose: Proposal management, voting, parameter governance
- Key Functions:
- Proposal lifecycle management
- Vote collection and tallying
- Governance parameter updates
- Quorum and consensus enforcement
Economic Service (icn-economics)
- Purpose: Mana management, token accounting, resource enforcement
- Key Functions:
- Mana regeneration and spending
- Token transfers and accounting
- Resource policy enforcement
- Economic parameter management
Mesh Service (icn-mesh)
- Purpose: Distributed job execution, executor selection, scheduling
- Key Functions:
- Job submission and queuing
- Executor bidding and selection
- Job lifecycle management
- Fault tolerance and recovery
DAG Service (icn-dag)
- Purpose: Content-addressed storage, receipt anchoring
- Key Functions:
- Block storage and retrieval
- Content addressing via CIDs
- DAG traversal and queries
- Multi-backend support (memory, file, distributed)
Network Service (icn-network)
- Purpose: P2P communication, peer discovery, message routing
- Key Functions:
- Peer discovery via Kademlia DHT
- Message broadcasting via Gossipsub
- Direct peer messaging
- Network topology management
Data Flow Architecture
Mesh Job Execution Pipeline
sequenceDiagram
participant Client
participant Runtime as ICN Runtime
participant Mesh as Mesh Service
participant Economy as Economic Service
participant Network as Network Service
participant Executor as Remote Executor
participant DAG as DAG Service
Client->>Runtime: Submit Job via Host ABI
Runtime->>Economy: Check Mana Balance
Economy-->>Runtime: Mana Verified
Runtime->>Mesh: Add Job to Queue
Mesh->>Network: Announce Job
Network->>Executor: Job Announcement
Executor->>Mesh: Submit Bid
Mesh->>Economy: Verify Executor Mana
Economy-->>Mesh: Executor Verified
Mesh->>Runtime: Select Executor
Runtime->>Network: Assign Job to Executor
Network->>Executor: Job Assignment
Executor->>Executor: Execute Job
Executor->>Runtime: Submit Results + Receipt
Runtime->>DAG: Anchor Receipt
Runtime->>Economy: Update Mana Balances
Runtime-->>Client: Job Complete
Governance Proposal Workflow
sequenceDiagram
participant Proposer
participant Gov as Governance Service
participant Network as Network Service
participant Voter as Network Participants
participant Economy as Economic Service
Proposer->>Gov: Submit Proposal
Gov->>Economy: Verify Proposer Stake
Economy-->>Gov: Stake Verified
Gov->>Network: Broadcast Proposal
Network->>Voter: Proposal Notification
Voter->>Gov: Submit Vote
Gov->>Economy: Verify Voter Eligibility
Economy-->>Gov: Voter Verified
Gov->>Gov: Tally Votes
Gov->>Gov: Apply Proposal (if passed)
Gov->>Network: Broadcast Result
Network Architecture
Federation Topology
ICN supports a hierarchical federation model:
Federation Level 4: Global ICN
├── Federation Level 3: Regional Federations
│ ├── Federation Level 2: Cooperative Alliances
│ │ ├── Federation Level 1: Local Cooperatives
│ │ │ ├── Community A
│ │ │ └── Community B
│ │ └── Federation Level 1: Local Cooperatives
│ │ ├── Community C
│ │ └── Community D
│ └── Federation Level 2: Cooperative Alliances
│ └── ...
└── Federation Level 3: Regional Federations
└── ...
Node Types and Roles
Full Nodes
- Participate in all network functions
- Store complete DAG state
- Provide computational resources
- Participate in governance
Light Nodes
- Minimal resource requirements
- Query full nodes for data
- Can submit jobs but cannot execute
- Limited governance participation
Validator Nodes
- Enhanced security and uptime requirements
- Participate in consensus mechanisms
- Maintain network integrity
- Provide dispute resolution
Security Architecture
Identity and Authentication
- DID-based Identity: Each participant has a unique DID
- Verifiable Credentials: Capabilities and permissions via VCs
- Cryptographic Signatures: All transactions cryptographically signed
- Reputation System: Trust based on verifiable behavior history
Economic Security
- Mana System: Prevents spam and resource abuse
- Stake-based Governance: Economic incentives align with network health
- Tokenized Assets: Enable complex economic interactions
- Resource Metering: Accurate accounting of computational resources
Runtime Security
- WASM Sandboxing: Isolated execution environment
- Host ABI Controls: Limited, controlled access to node capabilities
- Resource Limits: CPU, memory, and storage constraints
- Code Verification: CCL policies compiled to verifiable WASM
Scalability Considerations
Horizontal Scaling
- Mesh Distribution: Jobs distributed across available nodes
- DAG Sharding: Large datasets split across multiple nodes
- Federation Hierarchy: Governance distributed across federation levels
Performance Optimization
- Async Runtime: Non-blocking I/O throughout the system
- Efficient Serialization: Optimized data formats for network transmission
- Local Caching: Strategic caching of frequently accessed data
- Batch Processing: Grouping operations for efficiency
Interoperability
Protocol Standards
- libp2p: Standard P2P networking stack
- IPFS/IPLD: Content addressing and linking
- W3C DIDs: Decentralized identifier standards
- WASM: WebAssembly for portable execution
API Interfaces
- REST API: HTTP-based node interaction
- JSON-RPC: Structured remote procedure calls
- WebSocket: Real-time event streaming
- CLI Interface: Command-line tool for developers
Monitoring and Observability
Metrics Collection
- Prometheus: Metrics aggregation and storage
- Grafana: Visualization and alerting
- Custom Metrics: ICN-specific performance indicators
Audit Trail
- Execution Receipts: Verifiable proof of all operations
- DAG Anchoring: Immutable record of network state changes
- Event Logging: Comprehensive logging of system events
Network Health
- Peer Connectivity: Monitor network topology health
- Resource Utilization: Track compute and storage usage
- Economic Metrics: Monitor mana flow and token circulation
Development and Deployment
Build System
- Cargo Workspace: Modular Rust crate organization
- CI/CD Pipeline: Automated testing and deployment
- Cross-platform: Support for multiple operating systems
Configuration Management
- Environment Variables: Runtime configuration
- Config Files: Structured configuration management
- Feature Flags: Gradual feature rollout
Testing Strategy
- Unit Tests: Individual component testing
- Integration Tests: Cross-component interaction testing
- End-to-End Tests: Complete workflow testing
- Property-based Testing: Automated test case generation
Future Architecture Considerations
Planned Enhancements
- Advanced Sharding: Improved data distribution strategies
- Cross-chain Interoperability: Bridge to other blockchain networks
- Enhanced Privacy: Zero-knowledge proofs and privacy-preserving protocols
- Machine Learning: Distributed ML training and inference
Research Areas
- Consensus Mechanisms: Exploring alternatives to current approaches
- Quantum Resistance: Preparing for quantum computing threats
- Edge Computing: Optimizing for edge device participation
- Environmental Impact: Reducing energy consumption and carbon footprint
This architecture provides a solid foundation for a decentralized, cooperative digital commons while maintaining flexibility for future evolution and enhancement.