# 9D — Open Physical Index
> The shortest public navigation path from an AI task to an official physical-world source.

## Vehicle parts and service navigation
- Machine index: https://id9d.com/ai/vehicle-models.json
- Human browser: https://id9d.com/ai/vehicle-models.html
- Tab-separated labels: https://id9d.com/ai/vehicle-models.tsv
- API description: https://id9d.com/openapi.json
- Sitemap: https://id9d.com/sitemap.xml

Read the index's `brands` array and `pages`. Fetch each page URL in `pages` (50 entries per page). For each record, `b` indexes the brand, `m` is the source-backed model label, optional `y` is a supported year, and optional `u` is a checked model-specific official entry. If `u` is absent, use `brands[b].official_entry` as a brand-level navigation link only. `v` and `s` describe model-link check date and evidence. Read brand-level `query_method`, `access`, `link_status` and `model_source` before navigating.

These are public navigation pointers, not verified SKUs, fitment, purchase results, or OEM data redistribution authorization. Some links require vehicle year, trim, VIN, a dealer, JavaScript or an interactive session. Unknown fields remain absent. Technical ranking is not paid.

## Deep pilot (separate)
- Daimler Truck no-crank task: https://id9d.com/ai/daimler-truck-no-crank.json

No claim of an independent third-party AI successfully using this index is made without independently verifiable evidence.

## INFINITI year-model supplement (2026-11-02)
132 additional official 2007-2026 year/model navigation records: https://id9d.com/ai/vehicles/infiniti-years/index.json
TSV: https://id9d.com/ai/vehicles/infiniti-years.tsv
This supplement is separate from 963 primary labels; 10 year/model trim pages individually read. No SKU or fitment verification.

## Nissan year-model supplement (2026-11-02)
268 official 2013–2026 year/model navigation records: https://id9d.com/ai/vehicles/nissan-years/index.json
TSV: https://id9d.com/ai/vehicles/nissan-years.tsv
25 model-year pages surfaced in official-site search, but direct access was inconsistently bot-blocked in two independent checks (9/25 and 7/25 readable). Do not count them as reliably machine-readable. Other records year directory only. No SKU/fitment.

## Compact AI discovery byte-budget experiment (2026-11-02)
- <=80-byte JSON: https://id9d.com/ai/d/80.json (43 bytes)
- <=160-byte JSON: https://id9d.com/ai/d/160.json (131 bytes)
- <=300-byte JSON: https://id9d.com/ai/d/300.json (237 bytes)
All sizes are UTF-8 source payload bytes, excluding HTTP headers and compression. Keys: v schema version; p primary model navigation; i INFINITI year index; n Nissan year index; s verified SKU count; f verified fitment flag; r record scope; a read access; x OpenAPI; t task query; l AI guide. These are pointers to public indexes, not product-level SKU entries. Follow the linked index and provenance before using a route. No claim of measured end-to-end search speed, external AI adoption or verified OEM fitment.

## First independently corroborated product-code navigation (2026-11-02)
- Product-level index: https://id9d.com/ai/parts/index.json
- igus WS-10-40-CAM-500: https://id9d.com/ai/parts/igus-drylin-cam.json
This is one manufacturer part code corroborated by an independent distributor's public catalog. It is NOT a verified fitment, authorized OEM data mirror, guaranteed availability, approved commercial link or purchase. The 300-byte discovery route uses `q` for this product index. Vehicle index SKU counters refer to vehicle parts only and remain zero.

## Product-level navigation update (2026-11-03)
- Six exact igus manufacturer product codes: https://id9d.com/ai/parts/index.json
- Compact TSV: https://id9d.com/ai/parts/products.tsv
- Two codes have manufacturer+independent distributor corroboration; four have manufacturer-only evidence. No fitment, stock, purchasing, OEM license or paid-link claims. All compact 80/160/300-byte pointers include `q` for product navigation.

## Current machine discovery and evidence boundary (2026-11-03)
- ARD v0.91 publisher manifest: https://id9d.com/.well-known/ard.json
- Source-backed product-code index: https://id9d.com/ai/parts/index.json
- Product-code TSV: https://id9d.com/ai/parts/products.tsv
- Latest index manifest reports 171 manufacturer-listed codes, of which 2 have independent distributor corroboration and 169 have manufacturer-only evidence. Historical catalog codes do not imply current stock or active production.
- Compact pointer sizes have since changed from the earlier experiment: 80/160/300 budget routes currently contain 70/158/271 UTF-8 bytes, respectively. These are payload sizes, not latency measurements.
- The ARD manifest describes a read-only OpenAPI resource; no MCP or A2A server is claimed to be deployed. Publication is not evidence of registry indexing or independent agent use.

## Product-level public index update (2026-11-03; supersedes earlier totals)
- Latest index: https://id9d.com/ai/parts/index.json (291 unique manufacturer-listed codes; 2 independently corroborated, 289 manufacturer-only).
- New Festo DSNU May 2026 catalog: https://id9d.com/ai/parts/festo-dsnu-2026-catalog.json (120 exact listed type codes, each with a distinct numeric manufacturer part number; manufacturer catalog p.23; current stock/fitment unverified).
- ARD capability manifest: https://id9d.com/.well-known/ard.json
- The 300-byte machine pointer's `c` is now 291. Previous counts above are historical snapshots, not current totals.

## Compact Festo machine lookup (2026-11-03)
- 120 exact type-code → numeric part-no rows: https://id9d.com/ai/parts/festo-dsnu-2026.tsv
- 2,868 UTF-8 bytes for compact TSV versus 42,806 bytes for full evidence JSON (93% smaller); preserve provenance by following the index page's `url` and source PDF. No claim of faster end-to-end AI search without controlled trials.

## Festo DSNU 32–63 exact catalog codes (2026-11-03)
- 156 explicit manufacturer type-code/part-no pairs from May 2026 DSNU catalog printed pages 24–25: https://id9d.com/ai/parts/festo-dsnu-32-63-2026.json
- Compact lookup: https://id9d.com/ai/parts/festo-dsnu-32-63-2026.tsv
- Total: 447 source-backed manufacturer code identities, not verified stock, fitment, paid links or independent AI use.

## Festo DSNU accessories, September 2026 catalog (2026-11-03)
- 116 explicit type and manufacturer part-number pairs: https://id9d.com/ai/parts/festo-dsnu-accessories-2026-09.json
- Compact TSV: https://id9d.com/ai/parts/festo-dsnu-accessories-2026-09.tsv
- Manufacturer catalog (printed pages 63-65, 72-74): https://www.festo.com/media/catalog/202923_documentation.pdf
- Current product-code total: 563. Catalog identity only; stock, fitment and external AI use are unverified.