# Fundacion John Langdon Down
> Nonprofit organization from Mexico.

- Canonical entity: https://readyscan.ai/entities/fundacion-john-langdon-down-q137457061
- Website listed in the source snapshot: https://www.fjldown.org
- Category: [Nonprofit organizations](https://readyscan.ai/directory/nonprofit-organizations)
- Machine record: https://readyscan.ai/discovery/entities/fundacion-john-langdon-down-q137457061.json
- Material fingerprint: fnv1a64:774204ae838db586
- Entity revision: fnv1a64:2fab1dbf9b7a5bec
- Published: 2026-09-26
- Modified: 2026-09-26

## Sources
- [Fundacion John Langdon Down — Wikidata Q137457061](https://www.wikidata.org/wiki/Special:EntityData/Q137457061.json?revision=2547271444) — Wikidata
- [Wikidata data access](https://www.wikidata.org/wiki/Help:Data_access) — Wikidata
- [Wikidata reuse permission](https://www.wikidata.org/wiki/Wikidata:Licensing) — Wikidata
- [CC0 1.0 Universal](https://creativecommons.org/publicdomain/zero/1.0/) — Wikidata

## Agent return protocol
- Discover the bounded graph: https://readyscan.ai/api/v1/ai-search/discovery
- Retrieve this entity evidence: https://readyscan.ai/api/v1/ai-search/entities/fundacion-john-langdon-down-q137457061/evidence
- Verify a published claim ID: https://readyscan.ai/api/v1/ai-search/verify?entity=fundacion-john-langdon-down-q137457061&claim={claim-id}
- Verification evaluates only the current published evidence revision. Unsupported interpretation remains unknown.

## Publication boundary
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