{
  "schema_version": 1,
  "source_compilation_context": {
    "wi": {
      "attribution": {
        "inventory": {
          "name": "Compute Atlas",
          "creator": "Edward Kubiak",
          "url": "https://www.compute-atlas.com/api",
          "license": "CC BY 4.0",
          "license_url": "https://creativecommons.org/licenses/by/4.0/",
          "snapshot_url": "https://www.compute-atlas.com/api/facilities",
          "retrieved": "2026-10-14",
          "sha256": "79ad432dab7c128e428234c9d0dd40933114b415a4a5d697db00095637d50f37",
          "changes": "Added provenance, publication-date distinctions, display-safe wording, quarantine flags and state partitioning. Original source records retained locally."
        },
        "counties": "U.S. Census Bureau county boundaries (public domain)",
        "research": "Field-specific source context. See the linked source and limits on each record."
      },
      "source_data_url": "https://datacentersatlas.com/data/wi.json",
      "updated": "2026-10-25"
    }
  },
  "scope": "Retained county context, which can be broad or unresolved. No parcel or municipal jurisdiction is inferred. Research records retain their sources, dates and location limits. Counts are not a census of operating buildings. Company name links alone do not establish ownership or operation.",
  "collection": {
    "kind": "counties",
    "key": "55105",
    "label": "Rock County, Wisconsin"
  },
  "records": [
    {
      "id": "cambrin-project-cornmaze-town-of-beloit-wi",
      "state": "wi",
      "kind": "facility",
      "name": "Project Cornmaze Data Center (Town of Beloit)",
      "group": "proposed",
      "status": "Project listed development",
      "raw_status": "proposed",
      "status_field": "current_status",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "Rock"
      ],
      "city": "Beloit",
      "address": "",
      "who": "",
      "end_user": "",
      "mw": null,
      "power": "",
      "power_note": "",
      "investment": "",
      "jobs": "",
      "acres": null,
      "utility": "",
      "water": "",
      "incentives": "",
      "note": "Manual source context is available for this inherited inventory record. The inventory label and approximate geography are retained for discovery. This is not certification of current operation, ownership, a separate physical building, technical capacity or a precise parcel. Missing fields remain unknown. Named content personally reviewed; no whole-record certification. Dates and forecasts remain source-specific.. No applications/site plans submitted at report date. Up-to175000 USD reimburses town costs, not a grant paid to developer. Shared DNR contact with Degas does not establish Meta identity. Subsequent original decisions and current operator disclosures take precedence. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building.",
      "date": "",
      "events": [],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://www.wpr.org/news/town-of-beloit-pre-development-agreement-develop-data-center",
          "host": "wpr.org",
          "date": "2026-03-05",
          "published": "2026-03-05",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        },
        {
          "url": "https://www.panattoni.com/cornmaze/",
          "host": "www.panattoni.com",
          "published": "",
          "date": "",
          "checked": "2026-10-23",
          "label": "Reviewed operator source"
        }
      ],
      "loc": {
        "lat": 42.67125,
        "lng": -89.07141,
        "precision": "county",
        "basis": "Shown at county level only. The dot is placed inside the county for the map and is not the site, its address or a parcel."
      },
      "reviewed_evidence": [
        {
          "overlay": "regional-development-review-round24-2026-10-14.json",
          "scope": "Named content personally reviewed; no whole-record certification. Dates and forecasts remain source-specific.",
          "fields": {
            "reported_context": "WPR reports July15,2025 Cambrin predevelopment cost-recovery agreement for possible Beloit Cornmaze project.",
            "independently_verified_current_operating_status": null
          },
          "notes": [
            "No applications/site plans submitted at report date. Up-to175000 USD reimburses town costs, not a grant paid to developer. Shared DNR contact with Degas does not establish Meta identity.",
            "Subsequent original decisions and current operator disclosures take precedence.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://www.wpr.org/news/town-of-beloit-pre-development-agreement-develop-data-center",
              "host": "wpr.org",
              "date": "2026-03-05",
              "published": "2026-03-05",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "Codex 3 research cohort 25",
          "scope": "Panattoni current Cornmaze page explicitly describes a potential campus in the Town of Beloit and Town of Turtle, early planning, no final decisions and required local review before development can proceed. Proposed describes that current named project account, not a permit, entitlement to build during any moratorium, current construction or an operating facility. Panattoni naming does not change the inherited Cambrin identity, provider roles, municipality wrapper, end user or quantities. Promised jobs, utility arrangements and environmental benefits are not accomplished outcomes.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "current_named_cornmaze_early_planning_no_final_decision",
              "scope": "Panattoni current Cornmaze page explicitly describes a potential campus in the Town of Beloit and Town of Turtle, early planning, no final decisions and required local review before development can proceed. Proposed describes that current named project account, not a permit, entitlement to build during any moratorium, current construction or an operating facility. Panattoni naming does not change the inherited Cambrin identity, provider roles, municipality wrapper, end user or quantities. Promised jobs, utility arrangements and environmental benefits are not accomplished outcomes."
            }
          },
          "notes": [
            "Panattoni current Cornmaze page explicitly describes a potential campus in the Town of Beloit and Town of Turtle, early planning, no final decisions and required local review before development can proceed. Proposed describes that current named project account, not a permit, entitlement to build during any moratorium, current construction or an operating facility. Panattoni naming does not change the inherited Cambrin identity, provider roles, municipality wrapper, end user or quantities. Promised jobs, utility arrangements and environmental benefits are not accomplished outcomes.",
            "The review preserves existing identity, roles, locations, jurisdictions, quantities and physical opening fields. Source publication, checked dates and physical milestones remain distinct."
          ],
          "sources": [
            {
              "url": "https://www.panattoni.com/cornmaze/",
              "host": "www.panattoni.com",
              "published": "",
              "date": "",
              "checked": "2026-10-23",
              "label": "Reviewed operator source"
            }
          ],
          "checked": "2026-10-23",
          "whole_record_certified": false
        }
      ],
      "manual_source_reviewed": true,
      "whole_record_certified": false,
      "field_evidence_present": true,
      "inventory_label_retained": true,
      "precision_label": "Exact site not published; shown at county level",
      "summary": "Beloit · Rock · Source context reviewed",
      "status_scope": "Panattoni current Cornmaze page explicitly describes a potential campus in the Town of Beloit and Town of Turtle, early planning, no final decisions and required local review before development can proceed. Proposed describes that current named project account, not a permit, entitlement to build during any moratorium, current construction or an operating facility. Panattoni naming does not change the inherited Cambrin identity, provider roles, municipality wrapper, end user or quantities. Promised jobs, utility arrangements and environmental benefits are not accomplished outcomes.",
      "location_display": {
        "policy": "reviewed-map-references-2026-10-23",
        "decision": "withheld_unreviewed_point",
        "scope": "The available point evidence does not establish a supported site location. No site pin, nearby distance or aerial destination is published. The original coordinate and its provenance remain in research history.",
        "county_display": "55105"
      }
    },
    {
      "id": "town-of-janesville-data-center-rock-county-wi",
      "state": "wi",
      "kind": "facility",
      "name": "Town of Janesville Data Center Inquiry (Polzin/Fenric Roads)",
      "group": "unknown",
      "status": "Status unclear",
      "raw_status": "",
      "status_field": "",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "Rock"
      ],
      "city": "Janesville",
      "address": "",
      "who": "",
      "end_user": "",
      "mw": null,
      "power": "",
      "power_note": "",
      "investment": "",
      "jobs": "",
      "acres": null,
      "utility": "",
      "water": "",
      "incentives": "",
      "note": "Manual source context is available for this inherited inventory record. The inventory label and approximate geography are retained for discovery. This is not certification of current operation, ownership, a separate physical building, technical capacity or a precise parcel. Missing fields remain unknown. Original reporter/issuer named-project context, with inference and stages explicit.. KathrynLarson Spectrum May13,2026 originaltown/Countyofficialinterviews: TownofJanesville80acredevelopmentcontact NOFORMALAPPLICATION, consultingfirmunnamed. PRE-applicationnotice notpermitapplication/counterpartlease. CityofJanesvilleformerGM andTownofBeloitMetaquarry areSEPARATEproposals, notsamejurisdiction/operator. Rough100petition signatures isclerkhearsay, notvalidatedsignaturecount. No currenttenant/MW/approval/operations. Plans/historicalchanges/courtallegations/utilitycustomerinference not all-field,siteITorcurrentoperatingcertification.",
      "date": "",
      "events": [],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://spectrumnews1.com/wi/milwaukee/news/2026/05/13/town-of-janesville--data-center--rock-county--paul-terpstra--petition",
          "host": "spectrumnews1.com",
          "date": "",
          "published": "",
          "checked": "2026-10-15",
          "date_kind": "publication date not established",
          "label": "Reviewed source"
        },
        {
          "url": "https://townofjanesville.org/",
          "host": "townofjanesville.org",
          "published": "",
          "date": "",
          "checked": "2026-10-23",
          "label": "Reviewed government record"
        }
      ],
      "loc": {
        "lat": 42.68326,
        "lng": -89.08452,
        "precision": "county",
        "basis": "Shown at county level only. The dot is placed inside the county for the map and is not the site, its address or a parcel."
      },
      "reviewed_evidence": [
        {
          "overlay": "national-withdrawals-power-redesign-and-review-stage-round79-2026-10-15.json",
          "scope": "Original reporter/issuer named-project context, with inference and stages explicit.",
          "fields": {},
          "notes": [
            "KathrynLarson Spectrum May13,2026 originaltown/Countyofficialinterviews: TownofJanesville80acredevelopmentcontact NOFORMALAPPLICATION, consultingfirmunnamed. PRE-applicationnotice notpermitapplication/counterpartlease. CityofJanesvilleformerGM andTownofBeloitMetaquarry areSEPARATEproposals, notsamejurisdiction/operator. Rough100petition signatures isclerkhearsay, notvalidatedsignaturecount. No currenttenant/MW/approval/operations.",
            "Plans/historicalchanges/courtallegations/utilitycustomerinference not all-field,siteITorcurrentoperatingcertification."
          ],
          "sources": [
            {
              "url": "https://spectrumnews1.com/wi/milwaukee/news/2026/05/13/town-of-janesville--data-center--rock-county--paul-terpstra--petition",
              "host": "spectrumnews1.com",
              "date": "",
              "published": "",
              "checked": "2026-10-15",
              "date_kind": "publication date not established",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "Codex 3 research cohort 59",
          "scope": "The current original Town home lists an ad hoc data center committee sign up form and general government navigation. It does not substantively identify an exact developer, parcel, completed project vote or physical computing stage in the selected body. Committee recruitment and election dates do not establish a project hearing or computing operation. City of Janesville is a different municipality and is not substituted for the Town. No subscription, form, email or contact request was submitted.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "official_town_committee_navigation_exact_project_stage_held",
              "scope": "The current original Town home lists an ad hoc data center committee sign up form and general government navigation. It does not substantively identify an exact developer, parcel, completed project vote or physical computing stage in the selected body. Committee recruitment and election dates do not establish a project hearing or computing operation. City of Janesville is a different municipality and is not substituted for the Town. No subscription, form, email or contact request was submitted."
            },
            "source_read_scope": {
              "current_original_town_home_main_body_read": true,
              "committee_recruitment_not_project_approval": true,
              "town_not_city_janesville": true,
              "no_subscriptions_or_contact": true
            }
          },
          "notes": [
            "The current original Town home lists an ad hoc data center committee sign up form and general government navigation. It does not substantively identify an exact developer, parcel, completed project vote or physical computing stage in the selected body. Committee recruitment and election dates do not establish a project hearing or computing operation. City of Janesville is a different municipality and is not substituted for the Town. No subscription, form, email or contact request was submitted.",
            "Existing location, jurisdiction, provider roles, identities, quantities and physical opening dates remain unchanged. Proposal and administrative evidence do not certify computing operation."
          ],
          "sources": [
            {
              "url": "https://townofjanesville.org/",
              "host": "townofjanesville.org",
              "published": "",
              "date": "",
              "checked": "2026-10-23",
              "label": "Reviewed government record"
            }
          ],
          "checked": "2026-10-23",
          "whole_record_certified": false
        }
      ],
      "manual_source_reviewed": true,
      "whole_record_certified": false,
      "field_evidence_present": false,
      "inventory_label_retained": true,
      "precision_label": "Exact site not published; shown at county level",
      "summary": "Janesville · Rock · Source context reviewed",
      "location_display": {
        "policy": "reviewed-map-references-2026-10-23",
        "decision": "withheld_unreviewed_point",
        "scope": "The available point evidence does not establish a supported site location. No site pin, nearby distance or aerial destination is published. The original coordinate and its provenance remain in research history.",
        "county_display": "55105"
      }
    },
    {
      "id": "viridian-apecs-janesville-wi",
      "state": "wi",
      "kind": "facility",
      "name": "APECS Data Center Campus (Former GM Assembly Plant)",
      "group": "unknown",
      "status": "Status unclear",
      "raw_status": "",
      "status_field": "",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "Rock"
      ],
      "city": "Janesville",
      "address": "",
      "who": "",
      "end_user": "",
      "mw": null,
      "power": "",
      "power_note": "",
      "investment": "",
      "jobs": "",
      "acres": null,
      "utility": "",
      "water": "",
      "incentives": "",
      "note": "Manual source context is available for this inherited inventory record. The inventory label and approximate geography are retained for discovery. This is not certification of current operation, ownership, a separate physical building, technical capacity or a precise parcel. Missing fields remain unknown. Personally read dated project context only; no whole-record certification. Preview, identity, numerical, legal-stage and future-outcome holds remain.. LOI explicitly does not obligate city land sale or financial participation;120 daynegotiation period is not construction/RFS. Eleven-building conventional versus eight-building hyperscale layouts are alternative concepts, not 19 buildings. Up-to 800 MW is proposed demand with undefined IT/gross basis. More than 8 billioninvestment,1200 construction/600 operatingjobs and 2.05 billionstateeconomicimpact are different forecasts, not spending/employment/taxes. DNR-approved cleanup PLAN is not completed remediation. GMclosure 2008 captionversus 2009 body remains historical discrepancy, not resolved founding date. No operator or current 2026 status verified. Later original decisions and observed outcomes take precedence; future events have no assumed result. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building.",
      "date": "",
      "events": [],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://www.wpr.org/news/janesville-data-center-abandoned-gm-site",
          "host": "wpr.org",
          "date": "2025-11-11",
          "published": "2025-11-11",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        }
      ],
      "loc": {
        "lat": 42.64621,
        "lng": -89.06921,
        "precision": "county",
        "basis": "Shown at county level only. The dot is placed inside the county for the map and is not the site, its address or a parcel."
      },
      "reviewed_evidence": [
        {
          "overlay": "regional-development-review-round33-2026-10-14.json",
          "scope": "Personally read dated project context only; no whole-record certification. Preview, identity, numerical, legal-stage and future-outcome holds remain.",
          "fields": {
            "reported_context": "Wisconsin Public Radio reports Janesville council approved a NONBINDING Viridian letter of intent by 5 to 2 for due diligence and negotiations on a roughly 250 acreformerGMbrownfield.",
            "independently_verified_current_operating_status": null
          },
          "notes": [
            "LOI explicitly does not obligate city land sale or financial participation;120 daynegotiation period is not construction/RFS. Eleven-building conventional versus eight-building hyperscale layouts are alternative concepts, not 19 buildings. Up-to 800 MW is proposed demand with undefined IT/gross basis. More than 8 billioninvestment,1200 construction/600 operatingjobs and 2.05 billionstateeconomicimpact are different forecasts, not spending/employment/taxes. DNR-approved cleanup PLAN is not completed remediation. GMclosure 2008 captionversus 2009 body remains historical discrepancy, not resolved founding date. No operator or current 2026 status verified.",
            "Later original decisions and observed outcomes take precedence; future events have no assumed result.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://www.wpr.org/news/janesville-data-center-abandoned-gm-site",
              "host": "wpr.org",
              "date": "2025-11-11",
              "published": "2025-11-11",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        }
      ],
      "manual_source_reviewed": true,
      "whole_record_certified": false,
      "field_evidence_present": true,
      "inventory_label_retained": true,
      "precision_label": "Exact site not published; shown at county level",
      "summary": "Janesville · Rock · Source context reviewed",
      "location_display": {
        "policy": "reviewed-map-references-2026-10-23",
        "decision": "withheld_unreviewed_point",
        "scope": "The available point evidence does not establish a supported site location. No site pin, nearby distance or aerial destination is published. The original coordinate and its provenance remain in research history.",
        "county_display": "55105"
      }
    }
  ],
  "compilation_license": "withheld_pending_owner_decision"
}