{
  "schema_version": 1,
  "source_compilation_context": {
    "ms": {
      "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/ms.json",
      "updated": "2026-10-24"
    }
  },
  "scope": "Linked company names and sourced roles retain their separate meaning in each record. 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": "companies",
    "key": "xai",
    "label": "xAI"
  },
  "records": [
    {
      "id": "xai-macrohardrr-southaven-ms",
      "state": "ms",
      "kind": "facility",
      "name": "MACROHARDRR (xAI Southaven Data Center III)",
      "group": "building",
      "status": "Agency reported construction",
      "raw_status": "under construction",
      "status_field": "current_status",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "DeSoto"
      ],
      "city": "Southaven",
      "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. Field or source context only. Do not assign nearly2GW company computing power to the Mississippi building alone. Past forecast is not verified actual opening. Hundreds of jobs is not an exact number. Governor January8announcement says acquired-building retrofit and forecasts February opening; nearly2GW describes total company computing power after expansion. Only the listed fields were checked; imported geography, current operation, capacity and incentives require their own evidence. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building. named xAI project with duplicate-record and system-power holds. Two upstreamSouthaven/MACROHARDRR labels may duplicate one facility; exact parcel/address crosswalk needed before count. Nearly2GW is expandedColossuscompany compute system including otherMemphisarea facilities, not SouthavencriticalIT.20Bcommitment not audited spend; hundreds permanentjobs not exact count. Februarytarget not observed opening. Incentive approval has no dollar tax expenditure quantified.",
      "date": "",
      "events": [
        [
          "2026-01-08",
          "The original Mississippi Governor January 8, 2026 release names MACROHARDRR and reports ongoing building rehabilitation. Its February operating forecast and incentive approval do not certify that computing operation began or that nearby power infrastructure is the same facility."
        ]
      ],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
          "host": "governorreeves.ms.gov",
          "date": "2026-01-08",
          "published": "2026-01-08",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        }
      ],
      "loc": {
        "lat": 34.87558,
        "lng": -89.99096,
        "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": "field-verification-2026-10-14.json",
          "scope": "Field or source context only",
          "fields": {
            "city": "Southaven",
            "county": "DeSoto",
            "investment_usd_min": 20000000000,
            "investment_basis": "announced corporate investment in Southaven project",
            "event_status": "retrofitting as of2026-01-08",
            "opening_forecast": "2026-02",
            "incentive": "MDA data center sales/use exemption approved; city/county fee-in-lieu support; values not stated"
          },
          "notes": [
            "Do not assign nearly2GW company computing power to the Mississippi building alone.",
            "Past forecast is not verified actual opening.",
            "Hundreds of jobs is not an exact number.",
            "Governor January8announcement says acquired-building retrofit and forecasts February opening; nearly2GW describes total company computing power after expansion.",
            "Only the listed fields were checked; imported geography, current operation, capacity and incentives require their own evidence.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
              "host": "governorreeves.ms.gov",
              "date": "2026-01-08",
              "published": "2026-01-08",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "government-primary-review-round7-2026-10-14.json",
          "scope": "named xAI project with duplicate-record and system-power holds",
          "fields": {
            "project_name": "MACROHARDRR",
            "historical_announcement_date": "2026-01-08",
            "announced_project_corporate_investment_usd_min_exclusive": 20000000000,
            "reported_existing_building_retrofit": true,
            "historical_operation_target_month": "2026-02",
            "government_reported_incentive_approval": "Mississippi DataCenterIncentive sales/use exemption",
            "local_incentive_type": "Southaven andDeSotoCounty fee-in-lieu agreements"
          },
          "notes": [
            "Two upstreamSouthaven/MACROHARDRR labels may duplicate one facility; exact parcel/address crosswalk needed before count. Nearly2GW is expandedColossuscompany compute system including otherMemphisarea facilities, not SouthavencriticalIT.20Bcommitment not audited spend; hundreds permanentjobs not exact count. Februarytarget not observed opening. Incentive approval has no dollar tax expenditure quantified.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
              "host": "governorreeves.ms.gov",
              "date": "2026-01-08",
              "published": "2026-01-08",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "Codex 3 research cohort 75",
          "scope": "The complete original Governor release explicitly names MACROHARDRR and says a purchased building is being retrofitted for computing. This supports agency reported construction at the January 8 statement scope. The anticipated February 2026 operating start is not independently established as accomplished. A nearby power plant and an existing Tennessee computing site are separate components. Investment, incentives, future computing power and job projections are not current installed load or operation, and other Southaven records are not merged.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "state_named_macrohardrr_building_rehabilitation",
              "scope": "The complete original Governor release explicitly names MACROHARDRR and says a purchased building is being retrofitted for computing. This supports agency reported construction at the January 8 statement scope. The anticipated February 2026 operating start is not independently established as accomplished. A nearby power plant and an existing Tennessee computing site are separate components. Investment, incentives, future computing power and job projections are not current installed load or operation, and other Southaven records are not merged."
            },
            "source_read_scope": {
              "complete_original_governor_release_body_read": true,
              "explicit_retrospective_retrofit_not_incentive_alone": true,
              "february2026_forecast_not_accomplished_operation": true,
              "separate_power_plant_tennessee_and_other_southaven_records_not_merged": true
            }
          },
          "notes": [
            "The complete original Governor release explicitly names MACROHARDRR and says a purchased building is being retrofitted for computing. This supports agency reported construction at the January 8 statement scope. The anticipated February 2026 operating start is not independently established as accomplished. A nearby power plant and an existing Tennessee computing site are separate components. Investment, incentives, future computing power and job projections are not current installed load or operation, and other Southaven records are not merged.",
            "Existing roles, identities, physical placement, jurisdiction assignments, technical quantities and exact first opening days remain unchanged. A document date does not date physical commissioning."
          ],
          "sources": [
            {
              "url": "https://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
              "host": "governorreeves.ms.gov",
              "published": "2026-01-08",
              "date": "2026-01-08",
              "checked": "2026-10-24",
              "label": "Reviewed government record"
            }
          ],
          "checked": "2026-10-24",
          "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": "Southaven · DeSoto · Source context reviewed",
      "status_scope": "The complete original Governor release explicitly names MACROHARDRR and says a purchased building is being retrofitted for computing. This supports agency reported construction at the January 8 statement scope. The anticipated February 2026 operating start is not independently established as accomplished. A nearby power plant and an existing Tennessee computing site are separate components. Investment, incentives, future computing power and job projections are not current installed load or operation, and other Southaven records are not merged.",
      "event_evidence": [
        {
          "date": "2026-01-08",
          "text": "The original Mississippi Governor January 8, 2026 release names MACROHARDRR and reports ongoing building rehabilitation. Its February operating forecast and incentive approval do not certify that computing operation began or that nearby power infrastructure is the same facility.",
          "kind": "announced",
          "sources": [
            {
              "url": "https://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
              "host": "governorreeves.ms.gov",
              "published": "2026-01-08",
              "date": "2026-01-08",
              "checked": "2026-10-24",
              "label": "Reviewed government record"
            }
          ]
        }
      ],
      "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": "28033"
      }
    },
    {
      "id": "xai-southaven-ms",
      "state": "ms",
      "kind": "facility",
      "name": "xAI Southaven",
      "group": "unknown",
      "status": "Status unclear",
      "raw_status": "",
      "status_field": "",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "DeSoto"
      ],
      "city": "Southaven",
      "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 xAI project with duplicate-record and system-power holds. Two upstreamSouthaven/MACROHARDRR labels may duplicate one facility; exact parcel/address crosswalk needed before count. Nearly2GW is expandedColossuscompany compute system including otherMemphisarea facilities, not SouthavencriticalIT.20Bcommitment not audited spend; hundreds permanentjobs not exact count. Februarytarget not observed opening. Incentive approval has no dollar tax expenditure quantified. 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://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
          "host": "governorreeves.ms.gov",
          "date": "2026-01-08",
          "published": "2026-01-08",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        }
      ],
      "loc": {
        "lat": 34.88527,
        "lng": -90.00154,
        "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": "government-primary-review-round7-2026-10-14.json",
          "scope": "named xAI project with duplicate-record and system-power holds",
          "fields": {
            "project_name": "MACROHARDRR",
            "historical_announcement_date": "2026-01-08",
            "announced_project_corporate_investment_usd_min_exclusive": 20000000000,
            "reported_existing_building_retrofit": true,
            "historical_operation_target_month": "2026-02",
            "government_reported_incentive_approval": "Mississippi DataCenterIncentive sales/use exemption",
            "local_incentive_type": "Southaven andDeSotoCounty fee-in-lieu agreements"
          },
          "notes": [
            "Two upstreamSouthaven/MACROHARDRR labels may duplicate one facility; exact parcel/address crosswalk needed before count. Nearly2GW is expandedColossuscompany compute system including otherMemphisarea facilities, not SouthavencriticalIT.20Bcommitment not audited spend; hundreds permanentjobs not exact count. Februarytarget not observed opening. Incentive approval has no dollar tax expenditure quantified.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
              "host": "governorreeves.ms.gov",
              "date": "2026-01-08",
              "published": "2026-01-08",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "Codex 3 research cohort 75",
          "scope": "The original Governor release names MACROHARDRR and distinguishes a nearby power plant and existing Tennessee site. It does not independently identify the exact broader legacy Southaven record as a separate physical building or prove it is the same named project. This alias and component crosswalk remains held. No duplicated computing capacity, second opening or physical operation is inferred from one named building rehabilitation account.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "broader_southaven_alias_and_component_crosswalk_held",
              "scope": "The original Governor release names MACROHARDRR and distinguishes a nearby power plant and existing Tennessee site. It does not independently identify the exact broader legacy Southaven record as a separate physical building or prove it is the same named project. This alias and component crosswalk remains held. No duplicated computing capacity, second opening or physical operation is inferred from one named building rehabilitation account."
            },
            "source_read_scope": {
              "complete_original_governor_release_body_read": true,
              "macrohardrr_not_automatic_second_legacy_record": true,
              "separate_power_plant_and_tennessee_not_computing_identity": true,
              "no_identity_role_or_location_changes": true
            }
          },
          "notes": [
            "The original Governor release names MACROHARDRR and distinguishes a nearby power plant and existing Tennessee site. It does not independently identify the exact broader legacy Southaven record as a separate physical building or prove it is the same named project. This alias and component crosswalk remains held. No duplicated computing capacity, second opening or physical operation is inferred from one named building rehabilitation account.",
            "Existing roles, identities, physical placement, jurisdiction assignments, technical quantities and exact first opening days remain unchanged. A document date does not date physical commissioning."
          ],
          "sources": [
            {
              "url": "https://governorreeves.ms.gov/tech-leader-xai-investing-more-than-20-billion-in-southaven/",
              "host": "governorreeves.ms.gov",
              "published": "2026-01-08",
              "date": "2026-01-08",
              "checked": "2026-10-24",
              "label": "Reviewed government record"
            }
          ],
          "checked": "2026-10-24",
          "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": "Southaven · DeSoto · 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": "28033"
      }
    },
    {
      "id": "xai-tulane-road-southaven-ms",
      "state": "ms",
      "kind": "facility",
      "name": "xAI Tulane Road Data Center (Southaven)",
      "group": "unknown",
      "status": "Status unclear",
      "raw_status": "",
      "status_field": "",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "DeSoto"
      ],
      "city": "Southaven",
      "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 project-specific public context only; no whole-record certification. Regional, directory, legislative and membership sources do not verify an exact building.. Approval is not completed construction/RFS. Fifth regional site includes projects, not five operating campuses. SpaceXAI is source nomenclature, not independent corporate/legal-entity verification. Reported 40 million-dollarcontribution supports replacement city training facility, not a public subsidy awarded to data center or campuscapex. Adjacent StantonRoadpowerplant is separate generation; no MW assigned or added. Noise complaints/turbine extension belong to existing area facilities, not measured emissions from unbuilt Tulane campus. Related 600 million-dollarcontractor allegation is not a court award. Later originals and observed outcomes take precedence; future dates have no assumed result. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building.",
      "date": "",
      "events": [
        [
          "2026-08-18",
          "The original Southaven Mayor August 18, 2026 publication reports a training center relocation contract and future land exchange involving MZX Tech. This is the public statement date rather than completed title transfer, computing permission, actual campus construction or operation."
        ]
      ],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://www.actionnews5.com/2026/09/02/southaven-approves-new-spacexai-data-center-fifth-location-area/",
          "host": "actionnews5.com",
          "date": "2026-09-02",
          "published": "2026-09-02",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        },
        {
          "url": "https://www.southaven.org/Blog.aspx?IID=239",
          "host": "www.southaven.org",
          "published": "2026-08-18",
          "date": "2026-08-18",
          "checked": "2026-10-24",
          "label": "Reviewed government record"
        }
      ],
      "loc": {
        "lat": 34.85537,
        "lng": -89.98918,
        "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-round34-2026-10-14.json",
          "scope": "Personally read project-specific public context only; no whole-record certification. Regional, directory, legislative and membership sources do not verify an exact building.",
          "fields": {
            "reported_context": "ActionNews 5 reports Southaven aldermen approved a 660,000-square-foot data center at former 51-acre TulaneRoad training site, obtained through reported city land swap.",
            "independently_verified_current_operating_status": null
          },
          "notes": [
            "Approval is not completed construction/RFS. Fifth regional site includes projects, not five operating campuses. SpaceXAI is source nomenclature, not independent corporate/legal-entity verification. Reported 40 million-dollarcontribution supports replacement city training facility, not a public subsidy awarded to data center or campuscapex. Adjacent StantonRoadpowerplant is separate generation; no MW assigned or added. Noise complaints/turbine extension belong to existing area facilities, not measured emissions from unbuilt Tulane campus. Related 600 million-dollarcontractor allegation is not a court award.",
            "Later originals and observed outcomes take precedence; future dates 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.actionnews5.com/2026/09/02/southaven-approves-new-spacexai-data-center-fifth-location-area/",
              "host": "actionnews5.com",
              "date": "2026-09-02",
              "published": "2026-09-02",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "Codex 3 research cohort 75",
          "scope": "The complete original Mayor account reports a contract for relocating the training center and a future land exchange involving MZX Tech. It does not independently establish completed title transfer, a final computing permit, current construction or computing operation at the inherited Tulane project. Public safety facility funding and planned new training buildings are not the computing campus. The August 18 publication day does not date the contract execution or closing. No corporate role, parcel boundary or capacity is changed.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "city_land_exchange_contract_account_computing_stage_held",
              "scope": "The complete original Mayor account reports a contract for relocating the training center and a future land exchange involving MZX Tech. It does not independently establish completed title transfer, a final computing permit, current construction or computing operation at the inherited Tulane project. Public safety facility funding and planned new training buildings are not the computing campus. The August 18 publication day does not date the contract execution or closing. No corporate role, parcel boundary or capacity is changed."
            },
            "source_read_scope": {
              "complete_original_mayor_publication_body_read": true,
              "publication_not_exact_contract_execution_or_closing": true,
              "public_safety_buildings_not_computing_commissioning": true,
              "no_land_role_location_or_capacity_changes": true
            }
          },
          "notes": [
            "The complete original Mayor account reports a contract for relocating the training center and a future land exchange involving MZX Tech. It does not independently establish completed title transfer, a final computing permit, current construction or computing operation at the inherited Tulane project. Public safety facility funding and planned new training buildings are not the computing campus. The August 18 publication day does not date the contract execution or closing. No corporate role, parcel boundary or capacity is changed.",
            "Existing roles, identities, physical placement, jurisdiction assignments, technical quantities and exact first opening days remain unchanged. A document date does not date physical commissioning."
          ],
          "sources": [
            {
              "url": "https://www.southaven.org/Blog.aspx?IID=239",
              "host": "www.southaven.org",
              "published": "2026-08-18",
              "date": "2026-08-18",
              "checked": "2026-10-24",
              "label": "Reviewed government record"
            }
          ],
          "checked": "2026-10-24",
          "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": "Southaven · DeSoto · Source context reviewed",
      "event_evidence": [
        {
          "date": "2026-08-18",
          "text": "The original Southaven Mayor August 18, 2026 publication reports a training center relocation contract and future land exchange involving MZX Tech. This is the public statement date rather than completed title transfer, computing permission, actual campus construction or operation.",
          "kind": "announced",
          "sources": [
            {
              "url": "https://www.southaven.org/Blog.aspx?IID=239",
              "host": "www.southaven.org",
              "published": "2026-08-18",
              "date": "2026-08-18",
              "checked": "2026-10-24",
              "label": "Reviewed government record"
            }
          ]
        }
      ],
      "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": "28033"
      }
    }
  ],
  "compilation_license": "withheld_pending_owner_decision"
}