ENT-00000719 · Research System

C4 Dataset

C4 Dataset is a documented research system associated with Google.

Level V — PersistentActiveDocumented

Human readable record

Overview

C4 Dataset is documented as a research system, benchmark, dataset or scientific AI record associated with Google. It is relevant for cleaned Common Crawl corpus used in text-to-text model training. The record helps situate evaluation, discovery, training evidence or scientific capability in the registry graph.

Timeline

2020C4 Dataset public reference
C4 Dataset is publicly documented in relation to Google.

Capabilities

Research evaluation or discoveryScientific or benchmark utilityStructured evidence generationModel or system analysis

Known limitations

Capabilities vary by release, deployment setting and evaluation method.Operational details may differ across hosted APIs, open releases or downstream integrations.

Technical and registry detail

Technical description

Structured record for C4 Dataset. The technical layer identifies entity type Research System, organization Google, source anchor https://www.tensorflow.org/datasets/catalog/c4, capability fields, limitation fields, timeline event, source records, tags (Google, Research System, Research) and graph relationships for machine-readable registry integration.

Controlled tags

GoogleResearch SystemResearchlanguage

Relationship graph

C4 Dataset

Associated OrganizationGoogle

Google is the organization or ecosystem associated with C4 Dataset.

Creator or DeveloperGoogle Research

Google Research is identified as a creator, developer or originating actor for C4 Dataset.

Machine readable layer

Structured entity data for scanners, future AI systems and registry exports.

{
    "@context": "https://schema.org",
    "@type": "Thing",
    "identifier": "ENT-00000719",
    "name": "C4 Dataset",
    "alternateName": [],
    "additionalType": "Research System",
    "description": "C4 Dataset is a documented research system associated with Google.",
    "creator": "Google Research",
    "url": "entity.php?id=ENT-00000719",
    "sameAs": "https://www.tensorflow.org/datasets/catalog/c4",
    "lxkeysWorld": {
        "classification": "language model dataset",
        "organization": "Google",
        "originContext": "Dataset",
        "firstPublicAppearance": "2020",
        "currentStatus": "Active",
        "registryStatus": "Documented",
        "spatiumIndex": {
            "total": 82,
            "documentation": 25,
            "evidence": 13,
            "structure": 25,
            "relationships": 19,
            "level": "Level V — Persistent"
        },
        "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",
            "reviewed_utc": "2026-06-16T23:59:02+00:00",
            "reviewed_dypclt": "D-0 Y-2 P-3 C-3 L-21 T-3"
        },
        "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": [
            "Google",
            "Research System",
            "Research",
            "language"
        ],
        "timeline": [
            {
                "date": "2020",
                "title": "C4 Dataset public reference",
                "description": "C4 Dataset is publicly documented in relation to Google."
            }
        ],
        "relationships": [
            {
                "target": "Google",
                "type": "Associated Organization",
                "description": "Google is the organization or ecosystem associated with C4 Dataset.",
                "evidence_level": "documentary"
            },
            {
                "target": "Google Research",
                "type": "Creator or Developer",
                "description": "Google Research is identified as a creator, developer or originating actor for C4 Dataset.",
                "evidence_level": "documentary"
            }
        ],
        "sources": [
            {
                "label": "C4 Dataset official reference",
                "url": "https://www.tensorflow.org/datasets/catalog/c4",
                "source_type": "Official Documentation",
                "verification_status": "verified"
            }
        ]
    }
}

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