{ "schema_version": 1, "source_compilation_context": { "ia": { "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/ia.json", "updated": "2026-10-24" } }, "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": "19127", "label": "Marshall County, Iowa" }, "records": [ { "id": "miningstore-st-anthony-ia", "state": "ia", "kind": "facility", "name": "MiningStore St. Anthony Site", "group": "unknown", "status": "Status unclear", "raw_status": "", "status_field": "", "crypto": true, "type": "Crypto/HPC (inventory classification)", "counties": [ "Marshall" ], "city": "St. Anthony", "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 public named-source context only; no whole-record certification. See public-preview, identity and date limitations.. The Hardin January 24 permits, each site's 5 MW, bonds and noise conditions must not be assigned to St. Anthony. A photograph also depicts Grundy County, not St. Anthony. The brief historical mention does not identify St. Anthony's exact parcel, current power or 2026 operating status. Original approvals and later 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": [], "timeline": [], "opened": "", "tier": "", "sources": [ { "url": "https://www.thegazette.com/energy/hardin-county-approves-two-crypto-mining-sites/", "host": "thegazette.com", "date": "2023-02-20", "published": "2023-02-20", "checked": "2026-10-14", "date_kind": "publication", "label": "Reviewed source" }, { "url": "https://miningstore.com/miningstore-62-5-mw-bitcoin-mining-in-iowa/", "host": "miningstore.com", "published": "", "date": "", "checked": "2026-10-23", "label": "Reviewed operator source" } ], "loc": { "lat": 42.03585, "lng": -92.99894, "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-round28-2026-10-14.json", "scope": "Personally read public named-source context only; no whole-record certification. See public-preview, identity and date limitations.", "fields": { "reported_context": "The Gazette mentions MiningStore's existing Marshall County site near St. Anthony while covering two separately approved Hardin County mining proposals.", "independently_verified_current_operating_status": null }, "notes": [ "The Hardin January 24 permits, each site's 5 MW, bonds and noise conditions must not be assigned to St. Anthony. A photograph also depicts Grundy County, not St. Anthony. The brief historical mention does not identify St. Anthony's exact parcel, current power or 2026 operating status.", "Original approvals and later 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.thegazette.com/energy/hardin-county-approves-two-crypto-mining-sites/", "host": "thegazette.com", "date": "2023-02-20", "published": "2023-02-20", "checked": "2026-10-14", "date_kind": "publication", "label": "Reviewed source" } ], "whole_record_certified": false }, { "overlay": "Codex 3 research cohort 36", "scope": "The current company page describes an Iowa mining network through numbered facility labels, without an accepted crosswalk to this inherited named municipality or township component. It also mixes a fully deployed network headline with a facility still described as under development with a passed 2026 target. Aggregate mining service, anonymous numbered locations and an elapsed forecast are not transferred to this exact component. Current phase and any independent facility identity remain unclear.", "fields": { "current_stage_evidence": { "outcome": "anonymous_iowa_numbered_mining_portfolio_without_exact_named_component_crosswalk", "scope": "The current company page describes an Iowa mining network through numbered facility labels, without an accepted crosswalk to this inherited named municipality or township component. It also mixes a fully deployed network headline with a facility still described as under development with a passed 2026 target. Aggregate mining service, anonymous numbered locations and an elapsed forecast are not transferred to this exact component. Current phase and any independent facility identity remain unclear." } }, "notes": [ "The current company page describes an Iowa mining network through numbered facility labels, without an accepted crosswalk to this inherited named municipality or township component. It also mixes a fully deployed network headline with a facility still described as under development with a passed 2026 target. Aggregate mining service, anonymous numbered locations and an elapsed forecast are not transferred to this exact component. Current phase and any independent facility identity remain unclear.", "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://miningstore.com/miningstore-62-5-mw-bitcoin-mining-in-iowa/", "host": "miningstore.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": "St. Anthony · Marshall · 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": "19127" } }, { "id": "swarm-systems-marshalltown-ia", "state": "ia", "kind": "facility", "name": "Swarm Systems Marshalltown Data Center", "group": "unknown", "status": "Status unclear", "raw_status": "", "status_field": "", "crypto": false, "type": "Data center (inventory classification)", "counties": [ "Marshall" ], "city": "Marshalltown", "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.. City’s reported 120-day pause/November 23 expiry is not an original ordinance review; report says adopted inAugust, so exact start/end calculation is not reconstructed. Optional 60-day extension is not adopted extension. September 17 draft presentation was future and no result assumed. County’s separate possible six-month pause is not the city action. No tenant/MW/RFS verified. Other Iowa project powers, revenues and jobs are not Swarm figures. Directory-derived 116 statewide count is not an independently established census. Only project-relevant and surrounding policy context personally reviewed; no certification of every other county row. 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.businessrecord.com/iowa-communities-grapple-with-regulating-data-centers-as-development-spreads/", "host": "businessrecord.com", "date": "2026-09-11", "published": "2026-09-11", "checked": "2026-10-14", "date_kind": "publication", "label": "Reviewed source" }, { "url": "https://swarmsystems.com/", "host": "swarmsystems.com", "published": "", "date": "", "checked": "2026-10-23", "label": "Reviewed operator source" } ], "loc": { "lat": 42.04759, "lng": -93.01176, "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": "Business Record’s Marshalltown sections describe Swarm Systems discussing purchase of 21 city-owned acres at Edgewood Industrial Park for a 150,000-square-foot concept, with proposal and land negotiations not finalized.", "independently_verified_current_operating_status": null }, "notes": [ "City’s reported 120-day pause/November 23 expiry is not an original ordinance review; report says adopted inAugust, so exact start/end calculation is not reconstructed. Optional 60-day extension is not adopted extension. September 17 draft presentation was future and no result assumed. County’s separate possible six-month pause is not the city action. No tenant/MW/RFS verified. Other Iowa project powers, revenues and jobs are not Swarm figures. Directory-derived 116 statewide count is not an independently established census. Only project-relevant and surrounding policy context personally reviewed; no certification of every other county row.", "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.businessrecord.com/iowa-communities-grapple-with-regulating-data-centers-as-development-spreads/", "host": "businessrecord.com", "date": "2026-09-11", "published": "2026-09-11", "checked": "2026-10-14", "date_kind": "publication", "label": "Reviewed source" } ], "whole_record_certified": false }, { "overlay": "Codex 3 research cohort 36", "scope": "The current original company page markets a private AI facility design, phased shell and managed compute products. It does not expressly identify current construction or service at the exact Marshalltown site. A generic site plan and claimed available power are not project specific commissioning. The similarly named satellite company and other states are not merged. Current individual phase, local entitlement and delivered quantities remain unclear.", "fields": { "current_stage_evidence": { "outcome": "generic_private_ai_platform_without_exact_marshalltown_phase", "scope": "The current original company page markets a private AI facility design, phased shell and managed compute products. It does not expressly identify current construction or service at the exact Marshalltown site. A generic site plan and claimed available power are not project specific commissioning. The similarly named satellite company and other states are not merged. Current individual phase, local entitlement and delivered quantities remain unclear." } }, "notes": [ "The current original company page markets a private AI facility design, phased shell and managed compute products. It does not expressly identify current construction or service at the exact Marshalltown site. A generic site plan and claimed available power are not project specific commissioning. The similarly named satellite company and other states are not merged. Current individual phase, local entitlement and delivered quantities remain unclear.", "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://swarmsystems.com/", "host": "swarmsystems.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": "Marshalltown · Marshall · 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": "19127" } } ], "compilation_license": "withheld_pending_owner_decision" }