{
  "schema_version": "touchdown.ai-chip-graph.registry.v2",
  "title": "China and U.S. AI Chip Graph",
  "updated_at": "2026-08-01",
  "latest": true,
  "scope": "A China-first modular public registry of AI accelerator product families plus source-bounded semiconductor supply-chain entities, relationships, claims, gaps, and comparison anchors across China, the United States, and source-recorded cross-border dependencies. Design-company country is not manufacturing origin.",
  "research_status": {
    "status": "working_research",
    "authoritative": false,
    "fully_verified": false,
    "complete": false,
    "may_be_wrong_or_stale": true,
    "warning": "Working research, not a final or authoritative source of truth. This registry is incomplete, not fully verified, and may be wrong or stale. Check each cited source and review date before relying on a company, product, supplier, readiness, capacity, or performance record."
  },
  "interface_default_view": "china_supply_chain",
  "interface_views": [
    {"id": "china_supply_chain", "label": "China supply chain", "includes": ["china", "known_foreign_dependencies", "unresolved_product_links"]},
    {"id": "china_us_comparison", "label": "China to United States comparison", "includes": ["china", "united_states", "known_foreign_dependencies", "unresolved_product_links"]},
    {"id": "us_reference", "label": "United States reference", "includes": ["united_states", "known_foreign_dependencies", "unresolved_product_links"], "boundary": "Bounded capability anchors, not an equally complete supplier census."}
  ],
  "datasets": [
    {"country": "China", "url": "./data-v2.json", "schema": "touchdown.china-ai-chip-memory-atlas.v2"},
    {"country": "United States", "url": "./us-data-v2.json", "schema": "touchdown.us-ai-chip-atlas.v2"}
  ],
  "china_product_registry": "./data-v2.json",
  "us_product_registry": "./us-data-v2.json",
  "us_product_registry_legacy": "./us-data-v1.json",
  "candidate_ledger": "./candidate-ledger-v1.json",
  "product_packet_provenance": {
    "endpoint": "./data-v2.json",
    "source_packets_field": "source_packets",
    "candidate_reconciliation_field": "candidate_reconciliation"
  },
  "events": "./events-v1.json",
  "event_summary": {
    "event_count": 38,
    "product_linked_event_count": 37,
    "products_covered": 28,
    "china_events": 26,
    "china_products_covered": 21,
    "united_states_events": 12,
    "united_states_products_covered": 7,
    "boundary": "Dated milestones remain at their stated readiness gate. The ledger measures sourced progress, not matched workload performance, complete shipment coverage, or complete supply-chain coverage."
  },
  "coverage": "./coverage-v2.json",
  "coverage_v2": "./coverage-v2.json",
  "coverage_universe": "./coverage-universe-v3.json",
  "coverage_universe_html": "./coverage-universe-v3.html",
  "product_path_roster": "./product-paths/",
  "coverage_legacy": "./coverage-v1.json",
  "industrial_registry": "./industrial-registry-v1.json",
  "supply_chain": "./supply-chain-v1.json",
  "us_supply_chain": "./us-supply-chain-v2.json",
  "us_supply_chain_legacy": "./us-supply-chain-v1.json",
  "evidence_states": ["official", "independent", "corroborated", "reported", "derived", "unknown"],
  "api_note": "These are static, cacheable public endpoints. Consumers should start with registry.json and follow the listed versioned endpoints. coverage-universe-v3.json is the machine-readable master dated research-universe receipt; coverage-universe-v3.html is the indexable, no-JavaScript human roster. Together they account for every unique seed across the dated China semiconductor and AI-compute research list while keeping canonical resolutions, crosswalk candidates, and unresolved research queues separate. industrial-registry-v1.json exposes the exact typed canonical companies, products, equipment, components, materials, facilities, capabilities, processes, dependencies, relationships, and gaps through the same 15-stage navigation contract; its 101 relationships come only from the canonical relationship dataset and it adds zero inferred edges. coverage and coverage_v2 point to the narrower product-expansion ledger; coverage_legacy exposes the historical v1 snapshot only. data-v2.json and us-data-v2.json are normalized country product registries; legacy U.S. v1 remains separately labeled. The China registry's source_packets field records each modular input and checksum, and its candidate_reconciliation field records which accelerator candidate groups have normalized product records. candidate-ledger-v1.json and coverage-v2.json are narrower inclusion ledgers, not claims of exhaustive company coverage. supply-chain-v1.json is the sole authority for all China and U.S. product-path stage cells and separates product facts from product-specific supplier-relationship states. product_path_roster points to the indexable, no-JavaScript rendering of those same 55 product paths: 38 China and 17 U.S. records across 15 stages and 825 cells, comprising 55 known, 350 partial, and 420 unknown product-fact states. The roster adds no relationship claims. The supply-chain endpoint preserves canonical China semiconductor relationships separately from product-to-design-company associations, explicitly sourced supplier edges, and unresolved paths. us-supply-chain-v2.json contains 31 scope-labeled relationships: product-specific, product-family, reference-design, and company-level records remain separate, and the endpoint references the authoritative product paths without duplicating stage truth."
}