Stockfish

Structured entry data for human tools, AI systems and machine clients.

{
    "@context": [
        "https://schema.org",
        {
            "lxw": "https://lxkeys.world/schema/"
        }
    ],
    "@type": "Thing",
    "identifier": "ENT-00000684",
    "name": "Stockfish",
    "alternateName": [],
    "additionalType": {
        "category": "Methods and Research",
        "type": "Research System",
        "subtype": "",
        "lxkeysEntity": false
    },
    "description": "Stockfish is a research system associated with Stockfish, classified in LXKeys.world as AI Research / Specialized System.",
    "creator": "Stockfish Project",
    "url": "https://lxkeys.world/entry.php?id=ENT-00000684&lang=en",
    "sameAs": "https://stockfishchess.org/",
    "image": "",
    "lxkeysWorld": {
        "worldId": "ENT-00000684",
        "kind": "Methods and Research",
        "type": "Research System",
        "subtype": "",
        "classification": "AI Research / Specialized System",
        "organization": "Stockfish",
        "originContext": "Game AI system",
        "firstPublicAppearance": "2008",
        "currentStatus": "Active",
        "documentationStatus": "Documented",
        "documentationIndex": {
            "total": 74,
            "documentation": 25,
            "evidence": 13,
            "structure": 25,
            "relationships": 11,
            "level": "Level IV Connected"
        },
        "lxCalendarium": {
            "start_date_utc": "2023-04-01",
            "created_utc": "2026-06-16T23:59:02+00:00",
            "created_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3",
            "updated_utc": "2026-06-16T23:59:02+00:00",
            "updated_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3"
        },
        "facts": [],
        "capabilities": [
            "Research evaluation or discovery",
            "Scientific or benchmark utility",
            "Structured evidence generation",
            "Model or system analysis"
        ],
        "limitations": [
            "Capabilities vary by release, deployment setting and evaluation method.",
            "Operational details may differ across hosted APIs, open releases or downstream integrations."
        ],
        "tags": [
            "Stockfish",
            "Research System",
            "Research",
            "chess"
        ],
        "timeline": [
            {
                "date": "2008",
                "title": "Initial research publication or demonstration",
                "description": "Stockfish entered the documented public record in 2008. This event is retained at the precision supported by the Entry’s reviewed source history.",
                "source_url": "https://stockfishchess.org/",
                "verification_status": "source_backed_official"
            }
        ],
        "relationships": [
            {
                "target": "Stockfish Project",
                "type": "Creator or Developer",
                "description": "Stockfish Project is identified as a creator, developer or originating actor for Stockfish.",
                "evidence_level": "documentary"
            }
        ],
        "sources": [
            {
                "label": "Stockfish official reference",
                "url": "https://stockfishchess.org/",
                "source_type": "Official Documentation",
                "verification_status": "verified",
                "authority": "OFFICIAL",
                "role": "primary",
                "update_enabled": true,
                "authority_basis": "curated-corpus-refresh-2026-09-08"
            }
        ],
        "canonical": [],
        "imageMeta": []
    }
}