{
  "benchmark_overlap": "pending",
  "boilerplate": "lines occurring in >= 1% of documents removed (9 patterns); 0 high-df shingles excluded from near-dedup sketches (df>133 over 6696 sampled docs)",
  "created_field_semantics": "Last revision date from the dump, not the page creation date",
  "cross_source_text_dedup": "pending target integration",
  "exact_dedup": true,
  "language_gate": "independent three-window langid vote",
  "license_gate": "CC BY-SA 3.0 declared in archive.org item metadata (licenseurl) and on nonsa.pl; page-URL attribution; third-party notices still require review",
  "license_terms_url": "https://creativecommons.org/licenses/by-sa/3.0/",
  "limitations": [
    "satirical/humorous register: parody articles, fake news (NonNews), fake dictionary entries (Slownik), quotes (Cytaty), forum posts and games; not factual reference text",
    "pages may parody or quote real Wikipedia/cultural material; quoted passages are not guaranteed disjoint from other shards",
    "record model is a whole content page; individual entries/comments are not split",
    "pattern checks are not comprehensive de-identification"
  ],
  "minimum_final_text_characters": 500,
  "near_dedup": "deterministic capped 5-word-shingle hash Jaccard >= 0.90 within source; shingles with document frequency >2% (sampled 1-in-4) excluded from sketches",
  "pii_limitations": "Unlabelled national identifiers, free-form phone numbers, names and personal disclosures may remain; this is not complete anonymization",
  "pii_pattern_matches": {
    "account_candidate": 12,
    "email": 39,
    "ipv4": 240,
    "ipv6": 11,
    "ipv6_legacy_pattern": 3,
    "labelled_phone": 18,
    "national_identifier": 0
  },
  "pii_policy": "IPv6 parsed including compressed notation; labelled PESEL/NIP/REGON and 26-digit account candidates masked conservatively without checksum validation; counts cover all candidates before rejection",
  "rejection_counts": {
    "low_letter_ratio": 23,
    "non_polish_text": 28,
    "too_little_text": 14338,
    "too_little_text_after_redaction": 1
  },
  "scope": "Nonsensopedia content namespaces (0 articles, 100 Cytaty, 102 NonNews, 104 NonZrodla, 106 Slownik, 108 Gra, 110 Forum, 114 Poradnik), latest revision per page from the wikiteam3 archive.org dump",
  "wikipedia_shard_overlap": {
    "candidate_records": 26781,
    "collision_count": 0,
    "id_collisions": [],
    "method": "Literal dataset-record ID comparison only. Source-specific ID prefixes make zero collisions uninformative about page identity or text overlap. No target namespace or text audit was performed.",
    "observed_at": "2026-09-28T08:29:08.320971+00:00",
    "target": "SlayerLab/polish-dynaword:data/wikipedia",
    "target_revision": "1564cb054434ba049cbd0d355a9bfaf044b6a852",
    "target_rows": 1171897,
    "text_overlap": "not tested; quoted-article passages and target-wide text dedup remain integration gates"
  }
}