{
  "story_id": "f03dd2727d075387fb11b8e2a6ec889e",
  "desk": "drm3",
  "revision": 1,
  "published_at": "2026-09-05T01:19:36.000Z",
  "content_hash": "b870f65e31d98ce5dfe14011d02cdb7e7b0161f858d0ce2b4067cafadba33272",
  "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": "Brayan Rocchio becomes 6th MLB player to hit grand slam and walk-off HR",
    "dek": "Cleveland Guardians shortstop Brayan Rocchio hit a grand slam and a walk-off home run in the same game to lead a 7-6 victory over the Detroit Tigers.",
    "prose": "Brayan Rocchio hit a grand slam in the fourth inning and a walk-off home run in the ninth inning to lead the Cleveland Guardians to a 7-6 victory over the Detroit Tigers. [^1]\n\nCleveland Guardians shortstop Brayan Rocchio became the sixth player in Major League Baseball history to hit a grand slam and a walk-off home run in the same game on September 4, 2026. [^2]\n\nRocchio accomplished the feat by hitting the grand slam as a left-handed batter and the walk-off home run as a right-handed batter. [^3]\n\nRocchio joined George Kelly of the New York Giants, Hank Greenberg of Detroit, Minnie Minoso of the Chicago White Sox, Otto Velez of the Toronto Blue Jays, and Jack Clark of the Boston Red Sox in the exclusive club of players to achieve this feat. [^4]\n\nThe feat occurred in the first game of a split doubleheader on September 4, 2026, where the Guardians scored the final six runs of the game. [^5]\n\nCleveland manager Stephen Vogt said, 'What a cool day for him,' praising Rocchio's consistency with his work and effort. [^6]",
    "cited": "[{\"statement\":\"Brayan Rocchio hit a grand slam in the fourth inning and a walk-off home run in the ninth inning to lead the Cleveland Guardians to a 7-6 victory over the Detroit Tigers.\",\"source\":\"Winnipeg Free Press\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-05T00:03:42.000Z\",\"publisher_count\":1,\"sources\":[\"Winnipeg Free Press\"]},{\"statement\":\"Cleveland Guardians shortstop Brayan Rocchio became the sixth player in Major League Baseball history to hit a grand slam and a walk-off home run in the same game on September 4, 2026.\",\"source\":\"Winnipeg Free Press\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-05T00:03:42.000Z\",\"publisher_count\":1,\"sources\":[\"Winnipeg Free Press\"]},{\"statement\":\"Rocchio accomplished the feat by hitting the grand slam as a left-handed batter and the walk-off home run as a right-handed batter.\",\"source\":\"Winnipeg Free Press\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-05T00:03:42.000Z\",\"publisher_count\":1,\"sources\":[\"Winnipeg Free Press\"]},{\"statement\":\"Rocchio joined George Kelly of the New York Giants, Hank Greenberg of Detroit, Minnie Minoso of the Chicago White Sox, Otto Velez of the Toronto Blue Jays, and Jack Clark of the Boston Red Sox in the exclusive club of players to achieve this feat.\",\"source\":\"ESPN\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-05T01:19:36.000Z\",\"publisher_count\":1,\"sources\":[\"ESPN\"]},{\"statement\":\"The feat occurred in the first game of a split doubleheader on September 4, 2026, where the Guardians scored the final six runs of the game.\",\"source\":\"ESPN\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-05T01:19:36.000Z\",\"publisher_count\":1,\"sources\":[\"ESPN\"]},{\"statement\":\"Cleveland manager Stephen Vogt said, 'What a cool day for him,' praising Rocchio's consistency with his work and effort.\",\"source\":\"Winnipeg Free Press\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-05T00:03:42.000Z\",\"publisher_count\":1,\"sources\":[\"Winnipeg Free Press\"]}]",
    "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": "fdfb0680dea961871c9f8685dfa40c41",
      "thread_id": "09e667683c6858e66d90b808315afe01",
      "thread_label": "Hank Greenberg",
      "novelty": "UPDATE",
      "content_hash": "027acb5d9740a8fc8624e2694f130d0485b1e832e29f2018f90315a8c51ef5f5",
      "last_published_at": "2026-09-05T01:19:36.000Z",
      "read_receipt": {
        "slice_hash": "393cdd6eb0842b0ee37be2479c087fc39c2da39e5586e9a16c5c95e7f070b11f",
        "cursor_from": "eyJ0cyI6IjIwMjYtMDktMDVUMDA6NDE6MDkuMDAwMDAwWiIsImlkIjoiZmQzNDkyZGMwZWEyYWMwOTg0NDE3Njc1NTMxMDY3ODgiLCJ2IjoiMSJ9",
        "cursor_to": "eyJ0cyI6IjIwMjYtMDktMDVUMDE6Mjk6MTAuMDAwMDAwWiIsImlkIjoiMzNlYjNiNDNmNTIzYWJjNTM3MWE5YTdkZjBjOWIyNGUiLCJ2IjoiMSJ9",
        "view": "v_fountain_news",
        "view_version": "1",
        "row_count": 100,
        "window_days": 3,
        "bytes_scanned": 11524527,
        "credits": 8,
        "price_per_100_rows": 8,
        "sig": "IOVAaU5bwpwqjB5N4YGYGtWrLTIDikTUqoE9qsW9y_cs7ATIEIVNyMSvbAMa6qnEGmqQahGBwmctLrEiaf7dCQ",
        "public_key": "bMUigy8O0jOnBxQ4Sc-5lwhIZ8LQVAhxMbR7qESVuUE",
        "signer_path": "lakehouse/data-extract/v1",
        "alg": "Ed25519",
        "signed": true
      }
    },
    "written_at": "2026-09-05T06:25:01.464Z"
  },
  "cited_facts": [
    {
      "statement": "Brayan Rocchio hit a grand slam in the fourth inning and a walk-off home run in the ninth inning to lead the Cleveland Guardians to a 7-6 victory over the Detroit Tigers.",
      "source": "Winnipeg Free Press",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-05T00:03:42.000Z",
      "publisher_count": 1,
      "sources": [
        "Winnipeg Free Press"
      ]
    },
    {
      "statement": "Cleveland Guardians shortstop Brayan Rocchio became the sixth player in Major League Baseball history to hit a grand slam and a walk-off home run in the same game on September 4, 2026.",
      "source": "Winnipeg Free Press",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-05T00:03:42.000Z",
      "publisher_count": 1,
      "sources": [
        "Winnipeg Free Press"
      ]
    },
    {
      "statement": "Rocchio accomplished the feat by hitting the grand slam as a left-handed batter and the walk-off home run as a right-handed batter.",
      "source": "Winnipeg Free Press",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-05T00:03:42.000Z",
      "publisher_count": 1,
      "sources": [
        "Winnipeg Free Press"
      ]
    },
    {
      "statement": "Rocchio joined George Kelly of the New York Giants, Hank Greenberg of Detroit, Minnie Minoso of the Chicago White Sox, Otto Velez of the Toronto Blue Jays, and Jack Clark of the Boston Red Sox in the exclusive club of players to achieve this feat.",
      "source": "ESPN",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-05T01:19:36.000Z",
      "publisher_count": 1,
      "sources": [
        "ESPN"
      ]
    },
    {
      "statement": "The feat occurred in the first game of a split doubleheader on September 4, 2026, where the Guardians scored the final six runs of the game.",
      "source": "ESPN",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-05T01:19:36.000Z",
      "publisher_count": 1,
      "sources": [
        "ESPN"
      ]
    },
    {
      "statement": "Cleveland manager Stephen Vogt said, 'What a cool day for him,' praising Rocchio's consistency with his work and effort.",
      "source": "Winnipeg Free Press",
      "instrument": "News",
      "claim_key": null,
      "published_at": "2026-09-05T00:03:42.000Z",
      "publisher_count": 1,
      "sources": [
        "Winnipeg Free Press"
      ]
    }
  ],
  "note": "A signature proves who filed this and that it has not changed since. It never makes a claim true."
}