{
  "story_id": "e5a3df64c6cc94ed94e5dfd1c3ca4e6f",
  "desk": "drm3",
  "revision": 1,
  "published_at": "2026-09-04T11:30:00.000Z",
  "content_hash": "c7f508955d6f2e3b33efaaa46d626c1fbe2f551ae2e147635cb3c47c6b4a20c5",
  "hash_basis": "sha256 over `headline\\ndek\\nprose`, plus `\\n` + the canonical citations JSON when any source is placed, plus `\\n#blog` for blogs",
  "basis": {
    "headline": "Alcaraz and Sabalenka Advance at US Open as American Players Shine",
    "dek": "Carlos Alcaraz and Aryna Sabalenka reach the US Open third round while four Americans advance.",
    "prose": "Aryna Sabalenka, the defending champion and world number one, defeated Russian qualifier Polina Iatcenko 6-1, 6-1 in the third round. [^1]\n\nCarlos Alcaraz, the defending champion and Spanish second seed, defeated Jaime Faria 4-6, 6-0, 6-3, 6-2 to advance to the third round of the US Open. [^2]\n\nEmma Navarro of the United States will play Karolina Muchova in the third round of the Women's Singles tournament at the 2026 US Open. [^3]\n\nAlcaraz stated after his match that he wanted to test his body physically and assess how he would feel after playing four sets. [^4]\n\nAmerican Ben Shelton defeated Poland's Hubert Hurkacz 6-3, 5-7, 7-6(3), 7-5 to advance to the third round. [^5]\n\nThe third-round match between Emma Navarro and Karolina Muchova will take place at the USTA Billie Jean King National Tennis Center in New York. [^6]\n\nThe article provides TV schedule and streaming information for the Navarro-Muchova match. [^7]\n\nThe article was published on September 4, 2026 at 11:30 AM UTC. [^8]",
    "cited": "[{\"statement\":\"Aryna Sabalenka, the defending champion and world number one, defeated Russian qualifier Polina Iatcenko 6-1, 6-1 in the third round.\",\"source\":\"Al Jazeera\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-03T07:46:21.000Z\",\"publisher_count\":1,\"sources\":[\"Al Jazeera\"]},{\"statement\":\"Carlos Alcaraz, the defending champion and Spanish second seed, defeated Jaime Faria 4-6, 6-0, 6-3, 6-2 to advance to the third round of the US Open.\",\"source\":\"Al Jazeera\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-03T07:46:21.000Z\",\"publisher_count\":1,\"sources\":[\"Al Jazeera\"]},{\"statement\":\"Emma Navarro of the United States will play Karolina Muchova in the third round of the Women's Singles tournament at the 2026 US Open.\",\"source\":\"Yahoo! Sports\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-04T11:30:00.000Z\",\"publisher_count\":1,\"sources\":[\"Yahoo! Sports\"]},{\"statement\":\"Alcaraz stated after his match that he wanted to test his body physically and assess how he would feel after playing four sets.\",\"source\":\"Al Jazeera\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-03T07:46:21.000Z\",\"publisher_count\":1,\"sources\":[\"Al Jazeera\"]},{\"statement\":\"American Ben Shelton defeated Poland's Hubert Hurkacz 6-3, 5-7, 7-6(3), 7-5 to advance to the third round.\",\"source\":\"Al Jazeera\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-03T07:46:21.000Z\",\"publisher_count\":1,\"sources\":[\"Al Jazeera\"]},{\"statement\":\"The third-round match between Emma Navarro and Karolina Muchova will take place at the USTA Billie Jean King National Tennis Center in New York.\",\"source\":\"Yahoo! Sports\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-04T11:30:00.000Z\",\"publisher_count\":1,\"sources\":[\"Yahoo! Sports\"]},{\"statement\":\"The article provides TV schedule and streaming information for the Navarro-Muchova match.\",\"source\":\"Yahoo! Sports\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-04T11:30:00.000Z\",\"publisher_count\":1,\"sources\":[\"Yahoo! Sports\"]},{\"statement\":\"The article was published on September 4, 2026 at 11:30 AM UTC.\",\"source\":\"Yahoo! Sports\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-04T11:30:00.000Z\",\"publisher_count\":1,\"sources\":[\"Yahoo! Sports\"]}]",
    "kind": "news"
  },
  "receipt_verify": "Ed25519 over the dot-joined string `slice_hash.cursor_from.cursor_to.view.view_version.row_count`; public_key and sig are base64url of the raw 32-byte key / 64-byte signature",
  "receipt": null,
  "receipt_note": "this revision predates receipt-keeping (before v0.37.0); the filed row lives in the record",
  "generation_chain": {
    "wire": {
      "stream": "fountain_news",
      "story_id": "e17fc35ab0e56eabf250c2b721ab6267",
      "thread_id": "73800d7f7e7e3f452ace9a224319a3f5",
      "thread_label": "Emma Navarro",
      "novelty": "UPDATE",
      "content_hash": "1bb4af2b18cc6d8311b03f0832b601002c4db0aad5a1dcf1ea7ba6c4d747a19d",
      "last_published_at": "2026-09-04T11:30:00.000Z",
      "read_receipt": {
        "slice_hash": "48aafbd15209ea2c7deec3d12a5553ebb02c578f629b49152cdfb6564fc2c4ca",
        "cursor_from": "eyJ0cyI6IjIwMjYtMDktMDRUMTA6NTE6NTAuMDAwMDAwWiIsImlkIjoiZDM5YTg3NGJjMTUzNGVhZjlhMTEzNjA3NjczOWE5NmEiLCJ2IjoiMSJ9",
        "cursor_to": "eyJ0cyI6IjIwMjYtMDktMDRUMTE6NDc6NDQuMDAwMDAwWiIsImlkIjoiZDhmMjBiYzI4NGUwNjIxMzFiMjUyZWEzODhkYzZmZjAiLCJ2IjoiMSJ9",
        "view": "v_fountain_news",
        "view_version": "1",
        "row_count": 100,
        "window_days": 3,
        "bytes_scanned": 11734244,
        "credits": 8,
        "price_per_100_rows": 8,
        "sig": "z3v1OntGqu7WpswQ6Cz2ElNtrX3O6XqWBtBhqz5g0lsvBPBYbbBy7a9yoZOABEHz7t9vYnGQ-jPOTVCh8m_BDg",
        "public_key": "bMUigy8O0jOnBxQ4Sc-5lwhIZ8LQVAhxMbR7qESVuUE",
        "signer_path": "lakehouse/data-extract/v1",
        "alg": "Ed25519",
        "signed": true
      }
    },
    "written_at": "2026-09-04T12:32:08.926Z"
  },
  "cited_facts": [
    {
      "statement": "Aryna Sabalenka, the defending champion and world number one, defeated Russian qualifier Polina Iatcenko 6-1, 6-1 in the third round.",
      "source": "Al Jazeera",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-03T07:46:21.000Z",
      "publisher_count": 1,
      "sources": [
        "Al Jazeera"
      ]
    },
    {
      "statement": "Carlos Alcaraz, the defending champion and Spanish second seed, defeated Jaime Faria 4-6, 6-0, 6-3, 6-2 to advance to the third round of the US Open.",
      "source": "Al Jazeera",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-03T07:46:21.000Z",
      "publisher_count": 1,
      "sources": [
        "Al Jazeera"
      ]
    },
    {
      "statement": "Emma Navarro of the United States will play Karolina Muchova in the third round of the Women's Singles tournament at the 2026 US Open.",
      "source": "Yahoo! Sports",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-04T11:30:00.000Z",
      "publisher_count": 1,
      "sources": [
        "Yahoo! Sports"
      ]
    },
    {
      "statement": "Alcaraz stated after his match that he wanted to test his body physically and assess how he would feel after playing four sets.",
      "source": "Al Jazeera",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-03T07:46:21.000Z",
      "publisher_count": 1,
      "sources": [
        "Al Jazeera"
      ]
    },
    {
      "statement": "American Ben Shelton defeated Poland's Hubert Hurkacz 6-3, 5-7, 7-6(3), 7-5 to advance to the third round.",
      "source": "Al Jazeera",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-03T07:46:21.000Z",
      "publisher_count": 1,
      "sources": [
        "Al Jazeera"
      ]
    },
    {
      "statement": "The third-round match between Emma Navarro and Karolina Muchova will take place at the USTA Billie Jean King National Tennis Center in New York.",
      "source": "Yahoo! Sports",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-04T11:30:00.000Z",
      "publisher_count": 1,
      "sources": [
        "Yahoo! Sports"
      ]
    },
    {
      "statement": "The article provides TV schedule and streaming information for the Navarro-Muchova match.",
      "source": "Yahoo! Sports",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-04T11:30:00.000Z",
      "publisher_count": 1,
      "sources": [
        "Yahoo! Sports"
      ]
    },
    {
      "statement": "The article was published on September 4, 2026 at 11:30 AM UTC.",
      "source": "Yahoo! Sports",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-04T11:30:00.000Z",
      "publisher_count": 1,
      "sources": [
        "Yahoo! Sports"
      ]
    }
  ],
  "note": "A signature proves who filed this and that it has not changed since. It never makes a claim true."
}