{
  "researchedAt": "2026-10-27T01:12:32.078884+00:00",
  "researchDayEastern": "2026-10-26",
  "deadline": {
    "arc-3": {
      "dateUtc": "2026-10-26T23:59:00Z",
      "dateEastern": "2026-10-26T19:59:00-04:00",
      "sourceUrl": "https://www.kaggle.com/competitions/arc-prize-2026-arc-agi-3/overview/evaluation",
      "finding": "Official Timeline names October 26 Team Merger Deadline; all deadlines 11:59 PM UTC unless otherwise stated.",
      "checkedAt": "2026-10-27T01:12:32.078884+00:00"
    },
    "arc-2": {
      "dateUtc": "2026-10-26T23:59:00Z",
      "dateEastern": "2026-10-26T19:59:00-04:00",
      "sourceUrl": "https://www.kaggle.com/competitions/arc-prize-2026-arc-agi-2/overview/prizes",
      "finding": "Official Timeline names October 26 Team Merger Deadline; all deadlines 11:59 PM UTC unless otherwise stated.",
      "checkedAt": "2026-10-27T01:12:32.078884+00:00"
    }
  },
  "coverage": {
    "currentBoards": {
      "arc-2": {
        "observedAt": "2026-10-27T00:43:33Z",
        "teamCount": 3383,
        "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board"
      },
      "arc-3": {
        "observedAt": "2026-10-27T00:43:31Z",
        "teamCount": 4877,
        "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board"
      }
    },
    "baselineFullBoards": {
      "arc-3": "2026-10-25T09:04:08Z",
      "arc-2": "2026-10-25T09:04:10Z"
    },
    "narrowingEvidence": "All committed Oct25–26 wire evidence roster observations and edition observations; full Oct25 morning and current boards. Collector board-history holds current rosters and historical scores, not historical rosters.",
    "limitations": [
      "This identifies observed roster expansions, not exact Kaggle merge transactions or joining times.",
      "At least thirteen entries have roster additions bracketed wholly within October26 Eastern. Broader additions lacking same-day baseline are candidates, not verified today.",
      "Fresh multi-account entries absent in baseline are not evidence of a merger; they may be newly entered teams.",
      "No merger is inferred just from a name change, rank jump, submission count or absent prior entry.",
      "No affiliation, acclaim or contribution inferred from handles alone."
    ]
  },
  "architects": {
    "competition": "arc-prize-2026-arc-agi-3",
    "survivingTeamId": "16032816",
    "beforeAfter": [
      {
        "observedAt": "2026-10-26T19:42:56Z",
        "sourcePath": "content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "sourceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "teams": {
          "16384837": {
            "isNew": false,
            "members": [
              "dfranzen"
            ],
            "name": "Daniel Franzen",
            "rank": 16,
            "rankThen": 16,
            "score": 38.85,
            "scoreThen": 38.85,
            "submissions": 107,
            "teamId": "16384837"
          },
          "15501006": {
            "isNew": false,
            "members": [
              "insanitycheck"
            ],
            "name": "Jan Disselhoff",
            "rank": 18,
            "rankThen": 18,
            "score": 38.6,
            "scoreThen": 38.58,
            "submissions": 42,
            "teamId": "15501006"
          },
          "16032816": {
            "isNew": false,
            "members": [
              "dvhrtm",
              "sbrodehl"
            ],
            "name": "David Hartmann",
            "rank": 798,
            "rankThen": null,
            "score": 29.83,
            "scoreThen": null,
            "submissions": 51,
            "teamId": "16032816"
          }
        }
      },
      {
        "observedAt": "2026-10-26T21:43:10Z",
        "sourcePath": "content/news/wire-evidence/2026-10-26-1759-arc-3-the-architects-climb-to-sixteenth.json",
        "sourceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1759-arc-3-the-architects-climb-to-sixteenth.json",
        "teams": {
          "16032816": {
            "isNew": false,
            "members": [
              "dfranzen",
              "dvhrtm",
              "insanitycheck",
              "sbrodehl"
            ],
            "name": "The ARChitects",
            "rank": 16,
            "rankThen": 798,
            "score": 38.85,
            "scoreThen": 29.83,
            "submissions": 202,
            "teamId": "16032816"
          }
        }
      }
    ],
    "verifiedRosterTransition": "Before at 19:42:56Z: David Hartmann team16032816 had dvhrtm and sbrodehl; after at21:43:10Z The ARChitects has dfranzen,dvhrtm,insanitycheck,sbrodehl. Daniel and Jan accounts are additions in this observed transition. Sebastian was already with Hartmann before that transition.",
    "sportingCorrection": "Daniel Franzen team16384837 already held16th/38.85 before combination; Jan team15501006 held18th/38.60; Hartmann team16032816 held798th/29.83. After combination surviving entry held16th/38.85. Do not describe surviving entry 9.02 increase as a verified new solver performance improvement; it equals Franzen pre-existing score.",
    "mergeTimeBracketUtc": [
      "2026-10-26T19:42:56Z",
      "2026-10-26T21:43:10Z"
    ]
  },
  "confirmedSameDayRosterAdditions": [
    {
      "competition": "arc-3",
      "teamId": "16490178",
      "before": {
        "at": "2026-10-26T13:42:13Z",
        "name": "Grigoriy Zatravkin",
        "members": [
          "florenciasolange",
          "grigoriyzatravkin"
        ],
        "rank": 7,
        "score": 47.19,
        "source": "content/news/wire-evidence/2026-10-26-0956-arc-3-hongchendai-climbs-into-top-hundred.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0956-arc-3-hongchendai-climbs-into-top-hundred.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T15:42:28Z",
        "name": "Grigoriy Zatravkin & co",
        "members": [
          "aizealotwu",
          "deepdreamer",
          "florenciasolange",
          "grigoriyzatravkin"
        ],
        "rank": 7,
        "score": 47.19,
        "source": "content/news/wire-evidence/2026-10-26-1200-arc-3-sankalp-rises-to-sixtieth.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1200-arc-3-sankalp-rises-to-sixtieth.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "aizealotwu",
        "deepdreamer"
      ]
    },
    {
      "competition": "arc-3",
      "teamId": "15770880",
      "before": {
        "at": "2026-10-26T19:42:56Z",
        "name": "NVARC3",
        "members": [
          "cpmpml",
          "darraghdog",
          "eladsarafian",
          "galkaplun",
          "sorokin",
          "yeyinzhu"
        ],
        "rank": 6,
        "score": 48.84,
        "source": "content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T21:43:10Z",
        "name": "NVARC3",
        "members": [
          "cpmpml",
          "darraghdog",
          "eladsarafian",
          "galkaplun",
          "sorokin",
          "titericz",
          "yeyinzhu"
        ],
        "rank": null,
        "score": null,
        "source": "content/news/evidence/2026-10-26-evening-arc-3.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/evidence/2026-10-26-evening-arc-3.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "titericz"
      ]
    },
    {
      "competition": "arc-3",
      "teamId": "16916278",
      "before": {
        "at": "2026-10-26T17:42:42Z",
        "name": "Charles Ran",
        "members": [
          "cranberry128"
        ],
        "rank": 190,
        "score": 32.76,
        "source": "content/news/wire-evidence/2026-10-26-1401-arc-3-kobq-jumps-to-seventy-sixth.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1401-arc-3-kobq-jumps-to-seventy-sixth.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T19:42:56Z",
        "name": "Charles Ran",
        "members": [
          "cranberry128",
          "rohanajwani"
        ],
        "rank": 191,
        "score": 32.76,
        "source": "content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "rohanajwani"
      ]
    },
    {
      "competition": "arc-3",
      "teamId": "16916278",
      "before": {
        "at": "2026-10-26T19:42:56Z",
        "name": "Charles Ran",
        "members": [
          "cranberry128",
          "rohanajwani"
        ],
        "rank": 191,
        "score": 32.76,
        "source": "content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T21:43:10Z",
        "name": "Charles Ran",
        "members": [
          "christophercameron",
          "cranberry128",
          "matinaghaei",
          "rohanajwani"
        ],
        "rank": 190,
        "score": 32.76,
        "source": "content/news/wire-evidence/2026-10-26-1759-arc-3-the-architects-climb-to-sixteenth.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1759-arc-3-the-architects-climb-to-sixteenth.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "christophercameron",
        "matinaghaei"
      ]
    },
    {
      "competition": "arc-3",
      "teamId": "16459830",
      "before": {
        "at": "2026-10-26T05:41:20Z",
        "name": "Giovanny Rodríguez",
        "members": [
          "giovannyrodrguez"
        ],
        "rank": 214,
        "score": 32.54,
        "source": "content/news/wire-evidence/2026-10-26-0201-arc-3-yi-chia-chen-extends-lead.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0201-arc-3-yi-chia-chen-extends-lead.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T07:41:34Z",
        "name": "Giovanny Rodríguez",
        "members": [
          "arnavmishra02",
          "giovannyrodrguez"
        ],
        "rank": 214,
        "score": 32.54,
        "source": "content/news/wire-evidence/2026-10-26-0403-arc-3-prabhav-semwal-climbs-to-seventy-first.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0403-arc-3-prabhav-semwal-climbs-to-seventy-first.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "arnavmishra02"
      ]
    },
    {
      "competition": "arc-3",
      "teamId": "16246219",
      "before": {
        "at": "2026-10-26T05:41:20Z",
        "name": "Lucky",
        "members": [
          "caoyupeng",
          "lingyu07"
        ],
        "rank": 291,
        "score": 31.93,
        "source": "content/news/wire-evidence/2026-10-26-0201-arc-3-yi-chia-chen-extends-lead.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0201-arc-3-yi-chia-chen-extends-lead.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T07:41:34Z",
        "name": "Lucky",
        "members": [
          "caoyupeng",
          "lingyu07",
          "tofearlessknight"
        ],
        "rank": 291,
        "score": 31.93,
        "source": "content/news/wire-evidence/2026-10-26-0403-arc-3-prabhav-semwal-climbs-to-seventy-first.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0403-arc-3-prabhav-semwal-climbs-to-seventy-first.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "tofearlessknight"
      ]
    },
    {
      "competition": "arc-3",
      "teamId": "16246219",
      "before": {
        "at": "2026-10-26T11:41:59Z",
        "name": "Lucky",
        "members": [
          "caoyupeng",
          "lingyu07",
          "tofearlessknight"
        ],
        "rank": 299,
        "score": 31.93,
        "source": "content/news/wire-evidence/2026-10-26-0757-arc-3-nvarc3-advances-to-sixth.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0757-arc-3-nvarc3-advances-to-sixth.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T13:42:13Z",
        "name": "Lucky",
        "members": [
          "caoyupeng",
          "hjx1024",
          "lingyu07",
          "tofearlessknight"
        ],
        "rank": 298,
        "score": 31.93,
        "source": "content/news/wire-evidence/2026-10-26-0956-arc-3-hongchendai-climbs-into-top-hundred.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0956-arc-3-hongchendai-climbs-into-top-hundred.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "hjx1024"
      ]
    },
    {
      "competition": "arc-3",
      "teamId": "16032816",
      "before": {
        "at": "2026-10-26T19:42:56Z",
        "name": "David Hartmann",
        "members": [
          "dvhrtm",
          "sbrodehl"
        ],
        "rank": 798,
        "score": 29.83,
        "source": "content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1557-arc-3-kirill-krasikov-breaks-into-top-hundred.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T21:43:10Z",
        "name": "The ARChitects",
        "members": [
          "dfranzen",
          "dvhrtm",
          "insanitycheck",
          "sbrodehl"
        ],
        "rank": null,
        "score": null,
        "source": "content/news/evidence/2026-10-26-evening-arc-3.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/evidence/2026-10-26-evening-arc-3.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "dfranzen",
        "insanitycheck"
      ]
    },
    {
      "competition": "arc-2",
      "teamId": "17166527",
      "before": {
        "at": "2026-10-26T07:41:35Z",
        "name": "Thanh Hau Nguyen",
        "members": [
          "thanhhau097a"
        ],
        "rank": 26,
        "score": 63.89,
        "source": "content/news/wire-evidence/2026-10-26-0403-arc-2-rxe-rises-to-fifty-first.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0403-arc-2-rxe-rises-to-fifty-first.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T09:41:48Z",
        "name": "ảc",
        "members": [
          "andy2709",
          "locbaop",
          "thanhhau097a"
        ],
        "rank": null,
        "score": null,
        "source": "content/news/evidence/2026-10-26-morning-arc-2.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/evidence/2026-10-26-morning-arc-2.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "andy2709",
        "locbaop"
      ]
    },
    {
      "competition": "arc-2",
      "teamId": "17166527",
      "before": {
        "at": "2026-10-26T17:42:44Z",
        "name": "ảc",
        "members": [
          "andy2709",
          "locbaop",
          "thanhhau097a"
        ],
        "rank": 16,
        "score": 69.17,
        "source": "content/news/wire-evidence/2026-10-26-1401-arc-2-trian-climbs-to-thirty-eighth.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1401-arc-2-trian-climbs-to-thirty-eighth.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T19:42:57Z",
        "name": "ảc",
        "members": [
          "andy2709",
          "locbaop",
          "minhtu123",
          "thanhhau097a"
        ],
        "rank": 16,
        "score": 69.17,
        "source": "content/news/wire-evidence/2026-10-26-1557-arc-2-megsub-rises-to-sixty-seventh.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1557-arc-2-megsub-rises-to-sixty-seventh.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "minhtu123"
      ]
    },
    {
      "competition": "arc-2",
      "teamId": "16797706",
      "before": {
        "at": "2026-10-26T17:42:44Z",
        "name": "Shin & Maciej & Natalia",
        "members": [
          "maciejsypetkowski",
          "nataliajakowska",
          "shiiin9"
        ],
        "rank": 23,
        "score": 65.56,
        "source": "content/news/wire-evidence/2026-10-26-1401-arc-2-trian-climbs-to-thirty-eighth.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1401-arc-2-trian-climbs-to-thirty-eighth.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T19:42:57Z",
        "name": "Shin & Maciej & Natalia",
        "members": [
          "maciejsypetkowski",
          "nataliajakowska",
          "sggpls",
          "shiiin9",
          "yuritosci"
        ],
        "rank": 24,
        "score": 65.56,
        "source": "content/news/wire-evidence/2026-10-26-1557-arc-2-megsub-rises-to-sixty-seventh.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-1557-arc-2-megsub-rises-to-sixty-seventh.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "added": [
        "sggpls",
        "yuritosci"
      ]
    },
    {
      "competition": "arc-2",
      "teamId": "17101761",
      "before": {
        "at": "2026-10-26T11:42:01Z",
        "name": "codjjj",
        "members": [
          "codjjj",
          "gravity20",
          "li325040229"
        ],
        "rank": 40,
        "score": 54.44,
        "source": "content/news/wire-evidence/2026-10-26-0757-arc-2-nischay-dhankhar-climbs-from-503rd-to-48th.json",
        "publicEvidenceUrl": "https://github.com/82deutschmark/arc-explainer/blob/63deebb5/content/news/wire-evidence/2026-10-26-0757-arc-2-nischay-dhankhar-climbs-from-503rd-to-48th.json",
        "sourceType": "archived roster observation; not a merger log"
      },
      "after": {
        "at": "2026-10-26T13:42:14Z",
        "name": "codjjj",
        "members": [
          "codjjj",
          "gravity20",
          "jakkma",
          "li325040229",
          "muumaoo"
        ],
        "rank": 40,
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