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ArbSphere Federated Cross (Toy)

This repository provides a minimal, test-focused Python package that defines the canonical ArbSphere primitives and a deterministic ADMM-like step function used by unit tests. It serves as a starting point for a more comprehensive federated arbitrage prototype with privacy-preserving provenance and auditability.

What this repo delivers today

  • Core primitives: LocalArbProblem and SharedSignals, plus a simple PlanDelta generated by admm_step, suitable for deterministic testing and replay.
  • A lightweight translator: EnergiBridge, which serializes ArbSphere primitives into a canonical IR for adapters and cross-venue bridges.
  • A small Graph-of-Contracts registry (GoC) and a basic registry for adapters.
  • Packaging scaffold with a test suite (pytest) and a packaging check (python -m build).

Roadmap (high level)

  • Phase 0: protocol skeleton and two starter adapters with a lightweight ADMM-lite coordinator. Demonstrate a simple cross-venue mispricing capture with bounded plan feasibility and deterministic replay.
  • Phase 1: governance ledger scaffold, identity management (DID/short-lived certs), and secure aggregation for SharedSignals.
  • Phase 2: end-to-end cross-domain demo in a two-venue simulation, SDK bindings (Python/C++), and a minimal contract example.
  • Phase 3: latency-aware backtesting harness, performance dashboards, and auditability metrics.

Interoperability and privacy

  • Canonical bridge mapping ArbSphere primitives to a vendor-agnostic IR (EnergiBridge).
  • Protobuf/JSON-like IR is designed to be adapter-friendly, with per-message metadata for replay protection and auditability.
  • A lightweight Graph-of-Contracts registry to describe adapters, versions, and endpoints.

Testing and packaging

  • Run tests with: bash test.sh
  • Packaging verification via: python3 -m build
  • The repository is configured to be production-ready enough for CI checks while remaining a clean, educational scaffold for exploring federated arbitration ideas.

If helpful, I can draft toy adapter blueprints, an EnergiBridge mapping for ArbSphere, and a minimal two-venue toy contract to bootstrap interoperability.