{
  "schema_version": "1.0",
  "snapshot_date": "2026-08-31",
  "release_scope": "aggregate-only; no raw platform content, account identifiers, or row-level hashes",
  "source": "https://roy-tong.github.io/knowledge/data/research-corpora-2026-08-31.json",
  "methods": "https://roy-tong.github.io/knowledge/data/",
  "study": {"id":"home-robots-2023","title":"家庭机器人与开放场景","record_count":208755,"first_month":"2023-01","last_month":"2026-08","largest_source":"reddit","largest_source_records":184008,"largest_source_share_pct":88.1454,"platform_counts":{"bilibili":941,"github":905,"hacker_news":19023,"reddit":184008,"stackexchange":297,"youtube":3581},"machine_evidence_label_counts":{"E0":161090,"E1":32030,"E2":7105,"E3":668,"E4+":2707,"E4-":2434,"E5":2721},"duplicate_record_ids":0,"missing_record_ids":0,"duplicate_stored_text_hashes":0,"missing_stored_text_hashes":1,"nonempty_text_records":208755,"invalid_json_lines":0,"input_sha256":"5fcb6627471cbf583932a8e7085193a365cce1301e75d84c65feeae11c426cbe","semantic_label_validation":"not-performed-in-this-recount","unit":"feedback record, not person or validated demand"},
  "limitations": ["Records are not unique people or validated demand.", "Machine labels were not semantically verified in this recount.", "Cross-study text overlap exists; study sizes cannot be summed as independent samples.", "Public aggregates support arithmetic checks, not independent reconstruction of raw data."]
}