{
  "dataset": "GitHub Code Corpus - 5,000 Sample",
  "vendor": "HSH Intelligence",
  "version": "1.0",
  "issued": "2026-05-07",
  "tier": "PREMIUM",
  "summary": {
    "records": 5000,
    "languages": 5,
    "unique_repos": 1499,
    "size_parquet_mb": 13.4,
    "size_csv_mb": 49.9
  },
  "checks_passed": "10/10 PREMIUM",
  "quality_metrics": {
    "1_license_compliance": {
      "tool": "scancode-toolkit 32.5.0",
      "copyleft_pct": 0.0,
      "verdict": "PASS",
      "note": "100% commercial-safe (no GPL/AGPL/LGPL)"
    },
    "2_secret_detection": {
      "tool": "gitleaks 8.18.4",
      "leaks_found": 0,
      "verdict": "PASS",
      "note": "Zero credentials, API keys, or tokens"
    },
    "3_deduplication": {
      "method": "MinHash LSH (256-perm, 5-gram, 0.9 threshold)",
      "near_duplicates_pct": 0.0,
      "verdict": "PASS",
      "note": "Zero near-duplicates"
    },
    "4_complexity": {
      "tool": "radon 6.0.1",
      "avg_cyclomatic": 3.92,
      "verdict": "PASS",
      "note": "Healthy complexity range (< 15 = excellent)"
    },
    "5_token_diversity": {
      "tokenizer": "tiktoken cl100k_base (GPT-4)",
      "unique_tokens": 63712,
      "verdict": "PASS",
      "note": "Strong vocabulary diversity"
    },
    "6_statistical_balance": {
      "languages_count": 5,
      "max_language_pct": 20.0,
      "unique_repos": 1499,
      "verdict": "PASS",
      "note": "Perfectly balanced (1K per language)"
    },
    "7_benchmark_contamination": {
      "benchmarks_checked": [
        "HumanEval (164)",
        "MBPP (500)"
      ],
      "exact_matches": 0,
      "fuzzy_matches": 0,
      "verdict": "PASS",
      "note": "Zero contamination - safe for model evaluation"
    },
    "8_pii_beyond_secrets": {
      "method": "Custom regex + Luhn validation (BigCode standard)",
      "real_pii_remaining": 0,
      "verdict": "PASS",
      "note": "Zero emails, phones, IPs, SSNs, credit cards"
    },
    "9_syntax_validation": {
      "tools": "Python ast, Babel parser (JS/JSX), tsc, gofmt, syn 2.0",
      "overall_pct": 98.0,
      "by_language": {
        "Python": 98.9,
        "JavaScript": 97.0,
        "TypeScript": 95.3,
        "Go": 99.6,
        "Rust": 99.3
      },
      "verdict": "PASS",
      "note": "Exceeds Stack v2 95% standard for premium tier"
    },
    "10_repo_legitimacy": {
      "method": "GitHub REST API verification",
      "total_repos_checked": 1499,
      "active_pct": 93.8,
      "archived_pct": 6.1,
      "deleted_pct": 0.0,
      "verdict": "PASS",
      "note": "100% verified existing on GitHub"
    }
  },
  "schema": {
    "columns": 19,
    "fields": [
      "id",
      "language",
      "repo_owner",
      "repo_name",
      "repo_stars",
      "repo_forks",
      "repo_description",
      "repo_topics",
      "license",
      "file_path",
      "file_name",
      "file_size",
      "code",
      "word_count",
      "char_count",
      "line_count",
      "data_quality_score",
      "timestamp",
      "scrubbed"
    ]
  },
  "language_distribution": {
    "Python": 1000,
    "JavaScript": 1000,
    "TypeScript": 1000,
    "Go": 1000,
    "Rust": 1000
  },
  "compliance": {
    "commercial_use": true,
    "redistribution": true,
    "modification": true,
    "license_types": [
      "MIT",
      "Apache-2.0",
      "BSD-3-Clause",
      "BSD-2-Clause",
      "ISC"
    ],
    "gdpr_safe": true,
    "ccpa_safe": true
  },
  "methodology": {
    "framework": "BigCode / The Stack v2 production standard",
    "references": [
      "https://huggingface.co/datasets/bigcode/the-stack-v2",
      "scancode-toolkit (license detection)",
      "gitleaks (secret scanning)",
      "datasketch MinHash (deduplication)",
      "radon (complexity analysis)",
      "tiktoken (tokenization)",
      "syn 2.0 + Babel parser (syntax validation)"
    ],
    "full_audit_log": "Available on request",
    "reproducibility": "All checks reproducible via standard open-source tools"
  },
  "buyer_disclosure": "10/10 quality checks passed at PREMIUM tier. Industry-standard methodology following BigCode/Stack v2 production guidelines. Zero PII, zero contamination, 98% syntax-validated.",
  "audit_completed": "2026-05-07 10:09:12 UTC"
}