GCP-Robotics SDK: Sub-Millisecond Robotic Perception via Hash-Indexed Spatial Kinematic Blueprints

GCP-Robotics SDK v2.0.0 — the production Python SDK for the Golden Codex Protocol (GCP), implementing Perceptual Compute Offloading (PCO) for sub-millisecond robotic perception. Core Modules (~5,800 lines): CompositeHasher — Five perceptual hash modalities (dHash, pHash, PPP-256, color, zHash) with Object-Conditioned Ensembling CodexRegistry — O(1) exact + Hamming fuzzy lookup for Spatial Kinematic Blueprints (SKB) GCPClient — Async SDK client with System 1/System 2 dispatch, retries, and telemetry FastPathCache — Thread-safe LRU RAM cache (< 0.01 ms per operation) SoulmarkVerifier — SHA-256 / HMAC-SHA256 cryptographic SKB integrity verification SKB Schema — Four-layer Pydantic v2 ontology (Provenance, Semantic Topology, Affordance, Safety) ROS2 Integration — 4 framework-agnostic nodes (Vision, Registry, SlowPath, Bridge) Patent Notice: The Golden Codex Protocol architecture is the subject of U.S. Provisional Patent Applications No. 63/983,304 and No. 63/984,299, assigned to Metavolve Labs, Inc. This open-source license (Apache 2.0) grants rights to the software implementation; patent claims are separately licensed.