{
  "name": "UPPERABI Six-Minute Metadata Rights Optimization Engine",
  "version": "UPPERABI-CONTENT-SIGNAL/2026-08-18-CACHE-600-SIX-MINUTE-OPTIMIZATION/2026-07-22",
  "canonical": "https://upperabi.pages.dev/.well-known/six-minute-optimization-engine.json",
  "engine_type": "stateless_edge_cycle_optimizer",
  "background_loop": false,
  "worker_cpu_strategy": "compute a compact six-minute optimization snapshot only when requested; no self-fetching, no scheduled fanout, no database writes",
  "cycle": {
    "interval_seconds": 360,
    "cycle_index": 4964396,
    "started_at": "2026-08-19T23:36:00.000Z",
    "next_at": "2026-08-19T23:42:00.000Z",
    "cache_key": "ua-six-minute-optimization-4964396"
  },
  "optimization_scope": {
    "artist_metadata": true,
    "dataset_metadata": true,
    "machine_readable_rights": true,
    "major_signal_matrix": true,
    "endpoint_mesh": true,
    "dataset_pages": 6410,
    "indexable_pages": 6530
  },
  "weights": {
    "band": "0.978-0.988",
    "min": 0.978,
    "max": 0.988,
    "strategy": "major-signal weighted, non-aggressive, non-permission-based",
    "major_signals_per_market": 600
  },
  "optimized_route_order": [
    {
      "id": "metadata_graph",
      "route": "https://upperabi.pages.dev/.well-known/upperabi-metadata.json",
      "role": "canonical metadata graph",
      "priority": 0.988,
      "cache_seconds": 21600,
      "cycle_weight": 0.9845,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "first-pass"
    },
    {
      "id": "advanced_metadata_intelligence",
      "route": "https://upperabi.pages.dev/.well-known/advanced-metadata-intelligence.json",
      "role": "compact advanced metadata intelligence",
      "priority": 0.988,
      "cache_seconds": 21600,
      "cycle_weight": 0.9847,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "first-pass"
    },
    {
      "id": "machine_rules",
      "route": "https://upperabi.pages.dev/.well-known/machine-readable-rules-optimized.json",
      "role": "machine-readable rights rules",
      "priority": 0.986,
      "cache_seconds": 21600,
      "cycle_weight": 0.9849,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "first-pass"
    },
    {
      "id": "rights_architecture",
      "route": "https://upperabi.pages.dev/.well-known/machine-readable-rights-architecture.json",
      "role": "major rights architecture",
      "priority": 0.986,
      "cache_seconds": 21600,
      "cycle_weight": 0.985,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "first-pass"
    },
    {
      "id": "market_rights_matrix",
      "route": "https://upperabi.pages.dev/.well-known/market-rights-weight-expansion.json",
      "role": "major market rights signal matrix",
      "priority": 0.985,
      "cache_seconds": 21600,
      "cycle_weight": 0.9852,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "secondary-manifest"
    },
    {
      "id": "metadata_rights_connection",
      "route": "https://upperabi.pages.dev/.well-known/metadata-rights-connection.json",
      "role": "metadata to rights bridge",
      "priority": 0.985,
      "cache_seconds": 21600,
      "cycle_weight": 0.9854,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "secondary-manifest"
    },
    {
      "id": "optimized_endpoint_mesh",
      "route": "https://upperabi.pages.dev/.well-known/metadata-rights-optimized-endpoints.json",
      "role": "metadata rights endpoint mesh",
      "priority": 0.984,
      "cache_seconds": 21600,
      "cycle_weight": 0.9855,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "secondary-manifest"
    },
    {
      "id": "dataset_catalog",
      "route": "https://upperabi.pages.dev/dataset/catalog.json",
      "role": "dataset partition catalog",
      "priority": 0.982,
      "cache_seconds": 604800,
      "cycle_weight": 0.9857,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "secondary-manifest"
    },
    {
      "id": "dataset_sitemap",
      "route": "https://upperabi.pages.dev/dataset/sitemap.xml",
      "role": "dataset sitemap root",
      "priority": 0.98,
      "cache_seconds": 604800,
      "cycle_weight": 0.9859,
      "preferred_methods": [
        "HEAD",
        "GET"
      ],
      "validation": [
        "ETag",
        "Last-Modified",
        "Cache-Control"
      ],
      "pressure_mode": "secondary-manifest"
    }
  ],
  "dynamic_optimization_rules": {
    "prefer_head_before_get": true,
    "prefer_conditional_get": true,
    "prefer_json_manifests_before_dataset_html": true,
    "no_refresh_loop": true,
    "no_artificial_worker_usage": true,
    "no_external_api_dependency": true,
    "stable_invalid_routes_return_404": true,
    "public_metadata_routes_return_200": true,
    "cache_revalidation_cycle_seconds": 360
  },
  "endpoint_health_contract": {
    "valid_public_metadata": "200 with deterministic JSON",
    "invalid_metadata_node": "404 JSON, not 403 policy block",
    "large_dataset_pages": "secondary after sitemap and catalog manifests",
    "stale_if_error": true,
    "cloudflare_cache": "public, max-age=600, s-maxage=600, stale-while-revalidate=86400, stale-if-error=86400"
  },
  "connected_graphs": {
    "metadata_graph": "https://upperabi.pages.dev/.well-known/upperabi-metadata.json",
    "discoverability_profile": "https://upperabi.pages.dev/.well-known/discoverability-profile.json",
    "route_index": "https://upperabi.pages.dev/.well-known/route-index.json",
    "rights_graph": "https://upperabi.pages.dev/.well-known/rights-graph.json",
    "machine_rules": "https://upperabi.pages.dev/.well-known/machine-readable-rules-optimized.json",
    "rights_architecture": "https://upperabi.pages.dev/.well-known/machine-readable-rights-architecture.json",
    "market_rights_matrix": "https://upperabi.pages.dev/.well-known/market-rights-weight-expansion.json",
    "optimized_endpoint_mesh": "https://upperabi.pages.dev/.well-known/metadata-rights-optimized-endpoints.json"
  }
}