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      "sourceId": "fact-15486995-0",
      "sourceTitle": "ARC Prize — ARC-AGI-3 Milestone 1 results",
      "sourceUrl": "https://arcprize.org/blog/arc-prize-2026-milestone-1",
      "teamId": "15486995",
      "text": "ARC Prize named Tufa Labs and its Duck agent the first-place open-source solution for the June 2026 ARC-AGI-3 Milestone 1 prize."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-15486995-1",
      "sourceTitle": "Tufa Labs — Duck Harness technical overview",
      "sourceUrl": "https://tufalabs.ai/research/duck-harness/",
      "teamId": "15486995",
      "text": "Tufa Labs says its public Duck harness lets an LLM inspect game grids as image and text, write Python in a REPL, and keep context short by evicting older messages. This describes the published Milestone 1 system, not an unverified current submission."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-15486995-2",
      "sourceTitle": "Tufa Labs — team profiles",
      "sourceUrl": "https://tufalabs.ai/team/",
      "teamId": "15486995",
      "text": "Tufa Labs lists Dries Smit, Isaiah Pressman and Jeroen Cottaar among its AI researchers, with research interests spanning reinforcement learning, self-play and Bayesian methods."
    },
    {
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      "sourceId": "fact-15486995-3",
      "sourceTitle": "Tufa Labs — October 9 public competition post",
      "sourceUrl": "https://x.com/tufalabs/status/2108463895128269084",
      "teamId": "15486995",
      "text": "On October 9, 2026, Tufa Labs described a temporary setback in a public X post and said it remained dedicated to crushing competitors with overwhelming resources and compute."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-15499660-0",
      "sourceTitle": "Yi-Chia Chen — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/threerabbits",
      "teamId": "15499660",
      "text": "Yi-Chia Chen’s Kaggle profile lists her as a Competitions Master and a double-degree student at National Taiwan University and Waseda University."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
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      "sourceTitle": "Yi-Chia Chen — Eedi third-place solution write-up",
      "sourceUrl": "https://www.kaggle.com/competitions/eedi-mining-misconceptions-in-mathematics/writeups/waseda-pochi-3rd-place-solution-with-magic-boost",
      "teamId": "15499660",
      "text": "Yi-Chia Chen authored a Kaggle write-up for a third-place solution in Eedi — Mining Misconceptions in Mathematics."
    },
    {
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      "sourceTitle": "Yi-Chia Chen — public Kaggle profile and avatar",
      "sourceUrl": "https://www.kaggle.com/threerabbits",
      "teamId": "15499660",
      "text": "Yi-Chia Chen’s public Kaggle account is threerabbits. The profile lists she/her pronouns and displays an avatar of two rabbits."
    },
    {
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      "sourceId": "fact-15501006-0",
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      "sourceUrl": "https://www.kaggle.com/competitions/arc-prize-2025/writeups/the-architects-solution-2025",
      "teamId": "15501006",
      "text": "The ARChitects’ own 2025 solution write-up credits Jan Disselhoff under the Kaggle handle insanitycheck, alongside David Hartmann (dvhrtm) and Daniel Franzen (dfranzen)."
    },
    {
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      "sourceId": "fact-15501006-1",
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      "sourceUrl": "https://lambdalabsml.github.io/ARC2025_Solution_by_the_ARChitects/",
      "teamId": "15501006",
      "text": "The team’s 2025 technical report lists Jan Disselhoff at Johannes Gutenberg University Mainz."
    },
    {
      "checkedAt": "2026-10-09T03:23:31Z",
      "sourceId": "fact-15508513-0",
      "sourceTitle": "ARC-AGI-3 observed public roster",
      "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
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      "text": "The ARC-AGI-3 roster observed on 8 October 2026 lists keithtyser as the sole member of the entry also named keithtyser."
    },
    {
      "checkedAt": "2026-10-08T03:38:00Z",
      "sourceId": "fact-15770880-0",
      "sourceTitle": "NVIDIA — 2025 NVARC competition report",
      "sourceUrl": "https://developer.nvidia.com/blog/nvidia-kaggle-grandmasters-win-artificial-general-intelligence-competition/",
      "teamId": "15770880",
      "text": "NVIDIA’s December 2025 report identifies Ivan Sorokin and Jean-Francois Puget as NVIDIA researchers who competed as NVARC in the 2025 ARC Prize."
    },
    {
      "checkedAt": "2026-10-08T03:38:00Z",
      "sourceId": "fact-15770880-1",
      "sourceTitle": "NVARC — 2025 team write-up",
      "sourceUrl": "https://www.kaggle.com/competitions/arc-prize-2025/writeups/nvarc",
      "teamId": "15770880",
      "text": "The 2025 NVARC team write-up credits sorokin and cpmpml. Both handles appear in the observed roster of the distinct 2026 NVARC3 entry. This does not establish an affiliation for every current member."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-15770880-2",
      "sourceTitle": "NVIDIA — 2025 NVARC solution report",
      "sourceUrl": "https://developer.nvidia.com/blog/nvidia-kaggle-grandmasters-win-artificial-general-intelligence-competition/",
      "teamId": "15770880",
      "text": "NVIDIA describes the separate 2025 NVARC ARC-AGI-2 solution as using synthetic data generation, test-time training and a fine-tuned 4B model. This is historical background, not a claim about the 2026 NVARC3 agent."
    },
    {
      "checkedAt": "2026-10-09T03:23:31Z",
      "sourceId": "fact-15770880-3",
      "sourceTitle": "Jean-François Puget — public professional profile",
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      "teamId": "15770880",
      "text": "Jean-François Puget’s public GitHub profile identifies him as CPMP and links directly to the Kaggle account cpmpml."
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    {
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      "sourceId": "fact-15770880-4",
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      "text": "NVIDIA’s author biography describes Jean-Francois Puget as a director and individual contributor whose team advances agentic AI and showcases NVIDIA tools and expertise in Kaggle competitions."
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    {
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      "sourceId": "fact-16021367-0",
      "sourceTitle": "Lukas Aichberger — Kaggle profile",
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      "text": "The rostered lukasaichberger Kaggle profile identifies its owner as Lukas Aichberger and links to his research website."
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    {
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      "sourceId": "fact-16021367-1",
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      "text": "Johannes Kepler University Linz lists Lukas Aichberger at its Institute for Machine Learning and credits him on research about reasoning models and uncertainty evaluation."
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    {
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      "sourceId": "fact-16021367-2",
      "sourceTitle": "fses91 — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/fses91",
      "teamId": "16021367",
      "text": "Another rostered account, fses91, describes itself on Kaggle only as Florian; the public profile does not establish a surname."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16021367-3",
      "sourceTitle": "Mykyta Ielanskyi — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/dwellement0baser",
      "teamId": "16021367",
      "text": "The rostered dwellement0baser Kaggle profile identifies its owner as Mykyta Ielanskyi."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16021367-4",
      "sourceTitle": "JKU — Mykyta Ielanskyi research profile",
      "sourceUrl": "https://research.jku.at/en/persons/mykyta-ielanskyi/",
      "teamId": "16021367",
      "text": "Johannes Kepler University Linz lists Mykyta Ielanskyi at its Institute for Machine Learning. Its research record credits him and Lukas Aichberger together on a 2026 paper about reward redistribution for reasoning models."
    },
    {
      "checkedAt": "2026-10-08T03:38:00Z",
      "sourceId": "fact-16032816-0",
      "sourceTitle": "The ARChitects — 2025 team solution",
      "sourceUrl": "https://www.kaggle.com/competitions/arc-prize-2025/writeups/the-architects-solution-2025",
      "teamId": "16032816",
      "text": "The ARChitects’ own 2025 solution write-up credits David Hartmann under the Kaggle handle dvhrtm, alongside Jan Disselhoff (insanitycheck) and Daniel Franzen (dfranzen)."
    },
    {
      "checkedAt": "2026-10-08T03:38:00Z",
      "sourceId": "fact-16032816-1",
      "sourceTitle": "The ARChitects — 2025 technical report",
      "sourceUrl": "https://lambdalabsml.github.io/ARC2025_Solution_by_the_ARChitects/",
      "teamId": "16032816",
      "text": "The team’s 2025 technical report lists David Hartmann at Lambda, Inc."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16153655-0",
      "sourceTitle": "Michael — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/michaeltgao",
      "teamId": "16153655",
      "text": "The sole rostered michaeltgao Kaggle account displays the public name Michael; the profile does not establish a surname."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16371045-0",
      "sourceTitle": "Lord Han Solo — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/lordhansolo",
      "teamId": "16371045",
      "text": "The Kaggle account and team both use the public name Lord Han Solo. The profile itself does not supply a verified personal name."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16371045-1",
      "sourceTitle": "Lord Han Solo — Milestone 2 Kaggle notebook",
      "sourceUrl": "https://www.kaggle.com/code/lordhansolo/built-on-tufa-labs-duck-harness-milestone-2",
      "teamId": "16371045",
      "text": "Lord Han Solo published a Kaggle notebook titled “Built on Tufa Labs duck harness - Milestone 2,” explicitly crediting that earlier public harness in the notebook title."
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    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16805955-0",
      "sourceTitle": "Jayden Szeto — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/jaydenszeto123",
      "teamId": "16805955",
      "text": "The rostered jaydenszeto123 Kaggle account displays the name Jayden Szeto."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16805955-1",
      "sourceTitle": "Daniel Guo — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/denialguo",
      "teamId": "16805955",
      "text": "The rostered denialguo Kaggle account displays the name Daniel Guo."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16805955-2",
      "sourceTitle": "Hayley — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/snoopydoo",
      "teamId": "16805955",
      "text": "The rostered snoopydoo Kaggle account displays the name Hayley, without a surname."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16805955-3",
      "sourceTitle": "Jayden Szeto — BirdCLEF+ 2026 notebook",
      "sourceUrl": "https://www.kaggle.com/code/jaydenszeto123/birdclef2026-v3",
      "teamId": "16805955",
      "text": "Jayden Szeto’s Kaggle account also has a public BirdCLEF+ 2026 notebook titled “BIRDCLEF2026 V3.” This is background work, not a claim about dreach.ai’s ARC-AGI-3 method."
    },
    {
      "checkedAt": "2026-10-08T13:46:44Z",
      "sourceId": "fact-16958599-0",
      "sourceTitle": "Majkel1337 — Kaggle profile",
      "sourceUrl": "https://www.kaggle.com/majkel1337",
      "teamId": "16958599",
      "text": "The Majkel1337 team’s sole rostered Kaggle account also displays Majkel1337 as its public profile name."
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      "to": 31.19
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  "latestAt": "2026-10-11T21:33:04Z",
  "observations": {
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        "pressman1",
        "stefano1283"
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    "15495420": {
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      "name": "tf",
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    },
    "15499660": {
      "members": [
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      ],
      "name": "Yi-Chia Chen",
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    },
    "15501006": {
      "members": [
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      "name": "Jan Disselhoff",
      "observedAt": "2026-10-11T21:33:04Z"
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    "15508513": {
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      "name": "put me in harness @ NUP",
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    "15522677": {
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      "name": "Junhua Yang",
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    },
    "15605182": {
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        "sonphamorg"
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      "name": "Son & Mark & Ronen",
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    },
    "15770880": {
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        "sorokin",
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      "name": "NVARC3",
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    },
    "16021367": {
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    },
    "16032816": {
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    },
    "16371045": {
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      "name": "Lord Han Solo",
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    },
    "16619609": {
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    },
    "16805955": {
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    },
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    },
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      "name": "Majkel1337",
      "observedAt": "2026-10-11T21:33:04Z"
    },
    "16958955": {
      "members": [
        "niyanng"
      ],
      "name": "Nhan Duc Nguyen",
      "observedAt": "2026-10-11T21:33:04Z"
    }
  },
  "people": [
    {
      "id": "yi-chia-chen",
      "memberships": [
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-09T18:53:30Z",
          "lastObservedAt": "2026-10-11T10:02:00Z",
          "memberHandle": "threerabbits",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "15501171",
          "teamName": "Yi-Chia Chen"
        },
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "threerabbits",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15499660",
          "teamName": "Yi-Chia Chen"
        }
      ],
      "name": "Yi-Chia Chen",
      "sources": [
        {
          "sourceId": "person-yi-chia-chen-identity-0",
          "text": "Verified kaggle account: threerabbits"
        },
        {
          "sourceId": "person-yi-chia-chen-fact-0",
          "text": "Yi-Chia Chen’s Kaggle profile lists her as a Competitions Master and a double-degree student at National Taiwan University and Waseda University."
        },
        {
          "sourceId": "person-yi-chia-chen-fact-1",
          "text": "Yi-Chia Chen authored a Kaggle write-up for a third-place solution in Eedi — Mining Misconceptions in Mathematics."
        },
        {
          "sourceId": "person-yi-chia-chen-fact-2",
          "text": "Yi-Chia Chen’s public Kaggle account is threerabbits. The profile lists she/her pronouns and displays an avatar of two rabbits."
        },
        {
          "sourceId": "person-yi-chia-chen-roster-0",
          "text": "threerabbits observed in Yi-Chia Chen (arc-prize-2026-arc-agi-2, team 15501171) between 2026-10-09T18:53:30Z and 2026-10-11T10:02:00Z."
        },
        {
          "sourceId": "person-yi-chia-chen-roster-1",
          "text": "threerabbits observed in Yi-Chia Chen (arc-prize-2026-arc-agi-3, team 15499660) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "15499660"
      ]
    },
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          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-09T18:53:30Z",
          "lastObservedAt": "2026-10-11T10:02:00Z",
          "memberHandle": "cpmpml",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "15486939",
          "teamName": "nvbanana"
        },
        {
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          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "cpmpml",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15770880",
          "teamName": "NVARC3"
        }
      ],
      "name": "Jean-François Puget (CPMP)",
      "sources": [
        {
          "sourceId": "person-jean-francois-puget-identity-0",
          "text": "Verified kaggle account: cpmpml"
        },
        {
          "sourceId": "person-jean-francois-puget-identity-1",
          "text": "Verified x account: JFPuget"
        },
        {
          "sourceId": "person-jean-francois-puget-fact-0",
          "text": "Jean-François Puget’s public GitHub profile identifies him as CPMP and links directly to the Kaggle account cpmpml."
        },
        {
          "sourceId": "person-jean-francois-puget-fact-1",
          "text": "NVIDIA’s author biography describes Jean-Francois Puget as a director and individual contributor whose team advances agentic AI and showcases NVIDIA tools and expertise in Kaggle competitions."
        },
        {
          "sourceId": "person-jean-francois-puget-archive-0",
          "text": "ARC Prize 2025 champion · NVARC"
        },
        {
          "sourceId": "person-jean-francois-puget-archive-1",
          "text": "ARC Prize 2024 paper award runner-up · A 2D nGPT Model for ARC Prize"
        },
        {
          "sourceId": "person-jean-francois-puget-roster-0",
          "text": "cpmpml observed in nvbanana (arc-prize-2026-arc-agi-2, team 15486939) between 2026-10-09T18:53:30Z and 2026-10-11T10:02:00Z."
        },
        {
          "sourceId": "person-jean-francois-puget-roster-1",
          "text": "cpmpml observed in NVARC3 (arc-prize-2026-arc-agi-3, team 15770880) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "15770880"
      ]
    },
    {
      "id": "ivan-sorokin",
      "memberships": [
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "sorokin",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15770880",
          "teamName": "NVARC3"
        }
      ],
      "name": "Ivan Sorokin",
      "sources": [
        {
          "sourceId": "person-ivan-sorokin-identity-0",
          "text": "Verified kaggle account: sorokin"
        },
        {
          "sourceId": "person-ivan-sorokin-fact-0",
          "text": "NVIDIA’s December 2025 report identifies Ivan Sorokin and Jean-Francois Puget as NVIDIA researchers who competed as NVARC in the 2025 ARC Prize."
        },
        {
          "sourceId": "person-ivan-sorokin-fact-1",
          "text": "ARC Prize’s 2025 results list NVARC first and credit the paper “NVARC solution to ARC-AGI-2 2025” to I. Sorokin and Jean-François Puget."
        },
        {
          "sourceId": "person-ivan-sorokin-archive-0",
          "text": "ARC Prize 2025 champion · NVARC"
        },
        {
          "sourceId": "person-ivan-sorokin-roster-0",
          "text": "sorokin observed in NVARC3 (arc-prize-2026-arc-agi-3, team 15770880) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "15770880"
      ]
    },
    {
      "id": "keith-tyser",
      "memberships": [
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-09T18:53:30Z",
          "lastObservedAt": "2026-10-11T10:02:00Z",
          "memberHandle": "keithtyser",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "15526034",
          "teamName": "ARC Raiders"
        },
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "keithtyser",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15508513",
          "teamName": "keithtyser"
        }
      ],
      "name": "Keith Tyser",
      "sources": [
        {
          "sourceId": "person-keith-tyser-identity-0",
          "text": "Verified kaggle account: keithtyser"
        },
        {
          "sourceId": "person-keith-tyser-identity-1",
          "text": "Verified x account: keithtyser"
        },
        {
          "sourceId": "person-keith-tyser-fact-0",
          "text": "Keith Tyser describes his work as AI/ML engineering and data science on his professional website."
        },
        {
          "sourceId": "person-keith-tyser-roster-0",
          "text": "keithtyser observed in ARC Raiders (arc-prize-2026-arc-agi-2, team 15526034) between 2026-10-09T18:53:30Z and 2026-10-11T10:02:00Z."
        },
        {
          "sourceId": "person-keith-tyser-roster-1",
          "text": "keithtyser observed in keithtyser (arc-prize-2026-arc-agi-3, team 15508513) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "15508513"
      ]
    },
    {
      "id": "dries-smit",
      "memberships": [
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-09T18:53:30Z",
          "lastObservedAt": "2026-10-11T10:02:00Z",
          "memberHandle": "driessmit1",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "16756524",
          "teamName": "Tufa Labs"
        },
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "driessmit1",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15486995",
          "teamName": "Tufa Labs"
        }
      ],
      "name": "Dries Smit",
      "sources": [
        {
          "sourceId": "person-dries-smit-identity-0",
          "text": "Verified kaggle account: driessmit1"
        },
        {
          "sourceId": "person-dries-smit-fact-0",
          "text": "Tufa Labs lists Dries Smit as an AI researcher working on reinforcement learning, multi-agent systems and large language models."
        },
        {
          "sourceId": "person-dries-smit-fact-1",
          "text": "ARC Prize lists Dries Smit as lead developer of StochasticGoose @ Tufa Labs, which won the 2025 ARC-AGI-3 Preview competition."
        },
        {
          "sourceId": "person-dries-smit-archive-0",
          "text": "ARC-AGI-3 Preview 2025 winner · StochasticGoose @ Tufa Labs"
        },
        {
          "sourceId": "person-dries-smit-archive-1",
          "text": "ARC Prize 2025 third place · MindsAI & Tufa Labs"
        },
        {
          "sourceId": "person-dries-smit-roster-0",
          "text": "driessmit1 observed in Tufa Labs (arc-prize-2026-arc-agi-2, team 16756524) between 2026-10-09T18:53:30Z and 2026-10-11T10:02:00Z."
        },
        {
          "sourceId": "person-dries-smit-roster-1",
          "text": "driessmit1 observed in Tufa Labs (arc-prize-2026-arc-agi-3, team 15486995) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "15486995"
      ]
    },
    {
      "id": "jeroen-cottaar",
      "memberships": [
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-09T18:53:30Z",
          "lastObservedAt": "2026-10-11T10:02:00Z",
          "memberHandle": "jeroencottaar",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "16756524",
          "teamName": "Tufa Labs"
        },
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "jeroencottaar",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15486995",
          "teamName": "Tufa Labs"
        }
      ],
      "name": "Jeroen Cottaar",
      "sources": [
        {
          "sourceId": "person-jeroen-cottaar-identity-0",
          "text": "Verified kaggle account: jeroencottaar"
        },
        {
          "sourceId": "person-jeroen-cottaar-fact-0",
          "text": "Tufa Labs lists Jeroen Cottaar as an AI researcher, with research interests including Bayesian inference and program synthesis."
        },
        {
          "sourceId": "person-jeroen-cottaar-roster-0",
          "text": "jeroencottaar observed in Tufa Labs (arc-prize-2026-arc-agi-2, team 16756524) between 2026-10-09T18:53:30Z and 2026-10-11T10:02:00Z."
        },
        {
          "sourceId": "person-jeroen-cottaar-roster-1",
          "text": "jeroencottaar observed in Tufa Labs (arc-prize-2026-arc-agi-3, team 15486995) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "15486995"
      ]
    },
    {
      "id": "jan-disselhoff",
      "memberships": [
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-09T18:53:30Z",
          "lastObservedAt": "2026-10-11T10:02:00Z",
          "memberHandle": "insanitycheck",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "15507730",
          "teamName": "Jan Disselhoff"
        },
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "insanitycheck",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15501006",
          "teamName": "Jan Disselhoff"
        }
      ],
      "name": "Jan Disselhoff",
      "sources": [
        {
          "sourceId": "person-jan-disselhoff-identity-0",
          "text": "Verified kaggle account: insanitycheck"
        },
        {
          "sourceId": "person-jan-disselhoff-fact-0",
          "text": "The ARChitects’ own 2025 solution write-up credits Jan Disselhoff under the Kaggle handle insanitycheck, alongside David Hartmann (dvhrtm) and Daniel Franzen (dfranzen)."
        },
        {
          "sourceId": "person-jan-disselhoff-fact-1",
          "text": "The team’s 2025 technical report lists Jan Disselhoff at Johannes Gutenberg University Mainz."
        },
        {
          "sourceId": "person-jan-disselhoff-archive-0",
          "text": "ARC Prize 2025 runner-up · the ARChitects"
        },
        {
          "sourceId": "person-jan-disselhoff-archive-1",
          "text": "ARC Prize 2024 champion · the ARChitects"
        },
        {
          "sourceId": "person-jan-disselhoff-roster-0",
          "text": "insanitycheck observed in Jan Disselhoff (arc-prize-2026-arc-agi-2, team 15507730) between 2026-10-09T18:53:30Z and 2026-10-11T10:02:00Z."
        },
        {
          "sourceId": "person-jan-disselhoff-roster-1",
          "text": "insanitycheck observed in Jan Disselhoff (arc-prize-2026-arc-agi-3, team 15501006) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "15501006"
      ]
    },
    {
      "id": "david-hartmann",
      "memberships": [
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T18:53:27Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "dvhrtm",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "16032816",
          "teamName": "David Hartmann"
        }
      ],
      "name": "David Hartmann",
      "sources": [
        {
          "sourceId": "person-david-hartmann-identity-0",
          "text": "Verified kaggle account: dvhrtm"
        },
        {
          "sourceId": "person-david-hartmann-fact-0",
          "text": "The ARChitects’ own 2025 solution write-up credits David Hartmann under the Kaggle handle dvhrtm, alongside Jan Disselhoff (insanitycheck) and Daniel Franzen (dfranzen)."
        },
        {
          "sourceId": "person-david-hartmann-fact-1",
          "text": "The team’s 2025 technical report lists David Hartmann at Lambda, Inc."
        },
        {
          "sourceId": "person-david-hartmann-archive-0",
          "text": "ARC Prize 2025 runner-up · the ARChitects"
        },
        {
          "sourceId": "person-david-hartmann-roster-0",
          "text": "dvhrtm observed in David Hartmann (arc-prize-2026-arc-agi-3, team 16032816) between 2026-10-09T18:53:27Z and 2026-10-11T10:01:59Z."
        }
      ],
      "teamIds": [
        "16032816"
      ]
    },
    {
      "id": "isaiahp",
      "memberships": [
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-09T22:23:52Z",
          "lastObservedAt": "2026-10-11T10:01:59Z",
          "memberHandle": "pressman1",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15486995",
          "teamName": "Tufa Labs"
        },
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-09T22:23:53Z",
          "lastObservedAt": "2026-10-11T10:02:00Z",
          "memberHandle": "pressman1",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "16756524",
          "teamName": "Tufa Labs"
        }
      ],
      "name": "IsaiahP",
      "sources": [
        {
          "sourceId": "person-isaiahp-identity-0",
          "text": "Verified kaggle account: pressman1"
        },
        {
          "sourceId": "person-isaiahp-fact-0",
          "text": "ARC Prize’s 2025 results list MindsAI third; the final Kaggle leaderboard lists pressman1 (displayed as IsaiahP) on that MindsAI & Tufa Labs team with jcole75, driessmit1, moeosman and michaelhodel."
        },
        {
          "sourceId": "person-isaiahp-archive-0",
          "text": "ARC Prize 2025 third place · MindsAI & Tufa Labs"
        },
        {
          "sourceId": "person-isaiahp-roster-0",
          "text": "pressman1 observed in Tufa Labs (arc-prize-2026-arc-agi-3, team 15486995) between 2026-10-09T22:23:52Z and 2026-10-11T10:01:59Z."
        },
        {
          "sourceId": "person-isaiahp-roster-1",
          "text": "pressman1 observed in Tufa Labs (arc-prize-2026-arc-agi-2, team 16756524) between 2026-10-09T22:23:53Z and 2026-10-11T10:02:00Z."
        }
      ],
      "teamIds": [
        "15486995"
      ]
    },
    {
      "id": "mark-barney",
      "memberships": [
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-11T20:02:55Z",
          "lastObservedAt": "2026-10-11T20:02:55Z",
          "memberHandle": "markbarney",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "17023174",
          "teamName": "Mark Barney"
        },
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-11T20:02:53Z",
          "lastObservedAt": "2026-10-11T20:02:53Z",
          "memberHandle": "markbarney",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15605182",
          "teamName": "Son & Mark & Ronen"
        }
      ],
      "name": "Mark Barney",
      "sources": [
        {
          "sourceId": "person-mark-barney-identity-0",
          "text": "Verified kaggle account: markbarney"
        },
        {
          "sourceId": "person-mark-barney-roster-0",
          "text": "markbarney observed in Mark Barney (arc-prize-2026-arc-agi-2, team 17023174) between 2026-10-11T20:02:55Z and 2026-10-11T20:02:55Z."
        },
        {
          "sourceId": "person-mark-barney-roster-1",
          "text": "markbarney observed in Son & Mark & Ronen (arc-prize-2026-arc-agi-3, team 15605182) between 2026-10-11T20:02:53Z and 2026-10-11T20:02:53Z."
        }
      ],
      "teamIds": [
        "15605182"
      ]
    },
    {
      "id": "son-pham",
      "memberships": [
        {
          "competition": "arc-2",
          "competitionId": "arc-prize-2026-arc-agi-2",
          "firstObservedAt": "2026-10-11T20:02:55Z",
          "lastObservedAt": "2026-10-11T20:02:55Z",
          "memberHandle": "sonphamorg",
          "season": "2026",
          "sourceTitle": "ARC-2 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-2/board",
          "teamId": "15605185",
          "teamName": "Son Pham"
        },
        {
          "competition": "arc-3",
          "competitionId": "arc-prize-2026-arc-agi-3",
          "firstObservedAt": "2026-10-11T20:02:53Z",
          "lastObservedAt": "2026-10-11T20:02:53Z",
          "memberHandle": "sonphamorg",
          "season": "2026",
          "sourceTitle": "ARC-3 public roster observation",
          "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board",
          "teamId": "15605182",
          "teamName": "Son & Mark & Ronen"
        }
      ],
      "name": "Son Pham",
      "sources": [
        {
          "sourceId": "person-son-pham-identity-0",
          "text": "Verified kaggle account: sonphamorg"
        },
        {
          "sourceId": "person-son-pham-roster-0",
          "text": "sonphamorg observed in Son Pham (arc-prize-2026-arc-agi-2, team 15605185) between 2026-10-11T20:02:55Z and 2026-10-11T20:02:55Z."
        },
        {
          "sourceId": "person-son-pham-roster-1",
          "text": "sonphamorg observed in Son & Mark & Ronen (arc-prize-2026-arc-agi-3, team 15605182) between 2026-10-11T20:02:53Z and 2026-10-11T20:02:53Z."
        }
      ],
      "teamIds": [
        "15605182"
      ]
    }
  ],
  "socialPosts": [
    {
      "author": "OCEANVIN10",
      "authorName": "OCEAN",
      "category": "research",
      "checkedAt": "2026-10-10T21:02:17Z",
      "competitions": [
        "arc-3"
      ],
      "id": "2108936146071777498",
      "identitySourceUrl": "https://x.com/OCEANVIN10",
      "importance": 3,
      "personIds": [],
      "postedAt": "2026-10-10T15:02:14Z",
      "sourceId": "social-2108936146071777498",
      "storyUrl": "https://arxiv.org/abs/2610.11794",
      "summary": "OCEAN highlighted the Memento 3 preprint. Its authors report that a fixed language model revises an external rulebook and executable world model; on the 25 public ARC-AGI-3 games, they report clearing every level with fewer actions than the human baseline. These are author-reported results on the public set.",
      "threadId": null,
      "url": "https://x.com/OCEANVIN10/status/2108936146071777498",
      "visibility": "public",
      "whyItMatters": "A new ARC-AGI-3 research lead for the edition desk. The paper provides a concrete mechanism and results, but the public tutorial set cannot establish private-game performance."
    },
    {
      "author": "arcprize",
      "authorName": "ARC Prize",
      "category": "standings",
      "checkedAt": "2026-10-09T21:09:33Z",
      "competitions": [
        "arc-3"
      ],
      "id": "2108577347192676612",
      "identitySourceUrl": "https://arcprize.org",
      "importance": 3,
      "personIds": [
        "yi-chia-chen"
      ],
      "postedAt": "2026-10-09T15:16:29Z",
      "sourceId": "social-2108577347192676612",
      "storyUrl": "https://x.com/arcprize/status/2108577347192676612",
      "summary": "ARC Prize announced Yi-Chia Chen at 59.17% on the 2026 ARC-AGI-3 Kaggle board, taking the lead over Tufa Labs.",
      "threadId": "2108577347192676612",
      "url": "https://x.com/arcprize/status/2108577347192676612",
      "visibility": "public",
      "whyItMatters": "A new public-board leader is the strongest ARC-3 standings lead; verify the current board before an edition."
    },
    {
      "author": "Fei2411",
      "authorName": "FeiZ",
      "category": "research",
      "checkedAt": "2026-10-11T21:59:54.035507+00:00",
      "competitions": [
        "arc-3"
      ],
      "id": "2109319340902510823",
      "identitySourceUrl": "https://x.com/Fei2411",
      "importance": 2,
      "personIds": [],
      "postedAt": "2026-10-11T16:24:00Z",
      "sourceId": "social-2109319340902510823",
      "storyUrl": null,
      "summary": "FeiZ reported a one-level ls20 ARC-AGI-3 comparison: a DS Bot cleared that level within 81 steps, while a DeepSeek Harness exhausted 110 steps without clearing it. This is the author’s own small test, not a Kaggle standing or verified benchmark result.",
      "threadId": "2109319340902510823",
      "url": "https://x.com/Fei2411/status/2109319340902510823",
      "visibility": "public",
      "whyItMatters": "Recent ARC-AGI-3 community experiment; the author explicitly says one level proves little."
    },
    {
      "author": "arcprize",
      "authorName": "ARC Prize",
      "category": "community",
      "checkedAt": "2026-10-09T21:09:33Z",
      "competitions": [
        "arc-2",
        "arc-3"
      ],
      "id": "2108575462695817315",
      "identitySourceUrl": "https://arcprize.org",
      "importance": 2,
      "personIds": [],
      "postedAt": "2026-10-09T15:09:00Z",
      "sourceId": "social-2108575462695817315",
      "storyUrl": "https://arcprize.org/events/research-summit-2026",
      "summary": "ARC Prize announced Stephen Wolfram as a keynote speaker for its 2026 Research Summit.",
      "threadId": "2108575462695817315",
      "url": "https://x.com/arcprize/status/2108575462695817315",
      "visibility": "public",
      "whyItMatters": "A current event-program lead for the meeting digest."
    },
    {
      "author": "SimonOuellette6",
      "authorName": "Simon Ouellette",
      "category": "research",
      "checkedAt": "2026-10-09T21:09:33Z",
      "competitions": [
        "arc-3"
      ],
      "id": "2108289507908780366",
      "identitySourceUrl": "https://x.com/SimonOuellette6",
      "importance": 2,
      "personIds": [],
      "postedAt": "2026-10-08T20:12:43Z",
      "sourceId": "social-2108289507908780366",
      "storyUrl": "https://github.com/SimonOuellette35/ARC-AGI-3-Training-Data",
      "summary": "Ouellette released an ARC-AGI-3-style training-data framework with 429 playable games, solvers and demonstration generators; he said 37 games still lacked solvers. The linked repository says it combines augmented public ARC demos and other game sources.",
      "threadId": "2108289507908780366",
      "url": "https://x.com/SimonOuellette6/status/2108289507908780366",
      "visibility": "public",
      "whyItMatters": "A concrete research resource; its author describes training material, not a measured Kaggle-score gain or coverage of private games."
    },
    {
      "author": "arcprize",
      "authorName": "ARC Prize",
      "category": "research",
      "checkedAt": "2026-10-09T21:09:33Z",
      "competitions": [
        "arc-2",
        "arc-3"
      ],
      "id": "2107511511782420924",
      "identitySourceUrl": "https://arcprize.org",
      "importance": 2,
      "personIds": [],
      "postedAt": "2026-10-06T16:41:14Z",
      "sourceId": "social-2107511511782420924",
      "storyUrl": null,
      "summary": "ARC Prize published verified Grok 4.7 scores: 1.8% on ARC-AGI-3 with its standard harness, 10.0% with a provider adapter, and 61.4% on ARC-AGI-2.",
      "threadId": "2107511511782420924",
      "url": "https://x.com/arcprize/status/2107511511782420924",
      "visibility": "public",
      "whyItMatters": "The harness distinction matters when comparing model scores; the post reports organizer verification."
    },
    {
      "author": "GregKamradt",
      "authorName": "Greg Kamradt",
      "category": "research",
      "checkedAt": "2026-10-09T21:09:33Z",
      "competitions": [
        "arc-3"
      ],
      "id": "2107480627989938482",
      "identitySourceUrl": "https://x.com/arcprize",
      "importance": 2,
      "personIds": [],
      "postedAt": "2026-10-06T14:38:31Z",
      "sourceId": "social-2107480627989938482",
      "storyUrl": null,
      "summary": "Kamradt invited researchers to contact ARC Prize about red-teaming future ARC-AGI benchmarks and mentioned grants and credits as possible support.",
      "threadId": null,
      "url": "https://x.com/GregKamradt/status/2107480627989938482",
      "visibility": "public",
      "whyItMatters": "A direct research-participation lead; it is an invitation, not a claim about any current contestant’s approach."
    },
    {
      "author": "Fei2411",
      "authorName": "FeiZ",
      "category": "research",
      "checkedAt": "2026-10-11T17:58:52.184063Z",
      "competitions": [
        "arc-3"
      ],
      "id": "2109320245483917753",
      "identitySourceUrl": "https://x.com/Fei2411",
      "importance": 1,
      "personIds": [],
      "postedAt": "2026-10-11T16:28:00Z",
      "sourceId": "social-2109320245483917753",
      "storyUrl": null,
      "summary": "FeiZ attributed the one-level difference to context compression settings in a follow-up. A reply questioned the comparison setup; the explanation is an author claim, not independently established.",
      "threadId": "2109319340902510823",
      "url": "https://x.com/Fei2411/status/2109320245483917753",
      "visibility": "public",
      "whyItMatters": "Necessary context and caveat for the root ARC-AGI-3 experiment."
    },
    {
      "author": "82deutschmark",
      "authorName": "Mark Barney",
      "category": "banter",
      "checkedAt": "2026-10-11T03:00:52Z",
      "competitions": [
        "arc-3"
      ],
      "id": "2109076505255145609",
      "identitySourceUrl": "https://x.com/82deutschmark",
      "importance": 1,
      "personIds": [],
      "postedAt": "2026-10-11T00:19:58Z",
      "sourceId": "social-2109076505255145609",
      "storyUrl": "https://www.kaggle.com/competitions/arc-prize-2026-arc-agi-3",
      "summary": "Barney joked that he had reached the top ten in the ARC-AGI-3 Kaggle competition, linked the competition page and a video, and called himself a vibe coder. This is his own claim, not an independently checked standing.",
      "threadId": null,
      "url": "https://x.com/82deutschmark/status/2109076505255145609",
      "visibility": "public",
      "whyItMatters": "A current contender’s lighthearted reaction to a claimed top-ten position; verify the dated board before using the rank as fact."
    }
  ],
  "sourceSha256": "07e117fb26a66a5ed0119b3bb2cf94849b0b3c0f0d602f315c73bc210ef88938",
  "sourceUrl": "https://arc.markbarney.net/api/kaggle/arc-prize-2026-arc-agi-3/board"
}