Usilink Protocol

Highlights of the technical architecture

• Multi-Protocol Hot-Swap Compatibility

  Hybrid encoding (JSON-LD + Protocol Buffers) enables dynamic switching of REST, gRPC, etc., with unified interfaces reducing integration costs.

• Full-Link Traceable Architecture

  Hash + Merkle tree-based invocation logs stored in event-sourced ledgers, enabling tamper-proof tracing, full auditing, and state rollback.

• Decentralized Security & Dev-Friendliness

  W3C DID + OAuth 2.1 for cross-domain auth; multi-language SDKs and low-code tools simplify development, supporting multi-model collaboration via a single ABI.

Core Competencies

• Multi-Protocol & Decentralized Identity

  • Hot-swappable: REST, gRPC, GraphQL, AsyncAPI

  • Hybrid codec: JSON-LD + Protobuf

  • Decentralized auth via W3C DID + OAuth 2.1

• Auditable Execution Ledger

  • SHA-256 hash per call

  • Event-sourced via Kafka or NATS

  • Merkle-tree proofs for tamper evidence

• Developer-Friendly Orchestration

  • Type-safe SDKs (Go/Python/TypeScript)

  • Low-code Flow Designer for multi-model tasks

  • Full E2E observability, audit, rollback

Usilink vs Traditional Service Frameworks

• Usilink

  • Protocol Compatibility

    Supports hot - switching among 4 protocols such as REST/gRPC

  • Identity Authentication

    W3C DID + OAuth 2.1 distributed authentication

  • Traceability

    Merkle tree + SHA - 256 hash full - link proof

  • Development Experience

    Multi - language SDK + low - code designer

  • Collaboration Ability

    Multi - model task orchestration under a single ABI

• Traditional Service Frameworks

  • Protocol Compatibility

    Usually only supports 1 - 2 protocols, and switching requires development

  • Identity Authentication

    Centralized identity, weak cross - cloud compatibility

  • Traceability

    Basic log records, no anti - tampering mechanism

  • Development Experience

    Manual protocol adaptation is required, and development efficiency is low

  • Collaboration Ability

    Custom interfaces are required for cross - model collaboration, and compatibility is poor