{ "schema_version": 1, "source_compilation_context": { "oh": { "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/oh.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": "39067", "label": "Harrison County, Ohio" }, "records": [ { "id": "mara-hopedale-harrison-oh", "state": "oh", "kind": "facility", "name": "MARA Hopedale Data Center", "group": "unknown", "status": "Status unclear", "raw_status": "", "status_field": "", "crypto": true, "type": "Crypto/HPC (inventory classification)", "counties": [ "Harrison" ], "city": "Hopedale", "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. Originaloperator/issuer/government namedidentity,historicaltransaction orproposal/policycontext;notwhole-recordcurrentoperationcertification.. MARANov11,2024issuerreportsNov5closingHannibal/Hopedaletwosites.222MWINTERCONNECTAPPROVEDcombined,122MWthenoperatingcombined,100MWremainingexpansion;noindividualsplit. SeparateFindlay150MWplan,30MWthenoperatingcreates372approved/152operating/220developmentAGGREGATE. Not372MWineachsite,notallAIIT. End2025targetnotobserved2026energization.270USD/kWacquisitionmultiple=270000USD/MW,not270Mcapex. Hopedalepreviouslyhostednowacquired;potential50%costsavingnotactualmeteredresult. Sharedaggregatepower/generation,unknownITbasisanddate-rolelimitationscontrol.", "date": "", "events": [ [ "2024-11-11", "MARA published its Ohio acquisition and operating capacity account November 11, 2024, explicitly naming Hopedale. The publication and historical operating account do not certify an exact opening day, current all phase operation or achievement of its later expansion target." ] ], "timeline": [], "opened": "", "tier": "", "sources": [ { "url": "https://ir.mara.com/news-events/press-releases/detail/1375/mara-adds-372-megawatts-of-capacity-in-ohio-with-152-megawatts-operational-and-220-megawatts-in-development", "host": "ir.mara.com", "date": "", "published": "", "checked": "2026-10-14", "date_kind": "publication date not established", "label": "Reviewed source" }, { "url": "https://ir.mara.com/sec-filings/all-sec-filings/content/0001507605-26-000007/0001507605-26-000007.pdf", "host": "ir.mara.com", "published": "", "date": "", "checked": "2026-10-23", "label": "Reviewed government record" }, { "url": "https://ir.mara.com/sec-filings/all-sec-filings/content/0001507605-26-000022/0001507605-26-000022.pdf", "host": "ir.mara.com", "published": "2026-08-06", "date": "2026-08-06", "checked": "2026-10-23", "label": "Reviewed government record" } ], "loc": { "lat": 40.29366, "lng": -81.09138, "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": "operator-and-government-review-round46-2026-10-14.json", "scope": "Originaloperator/issuer/government namedidentity,historicaltransaction orproposal/policycontext;notwhole-recordcurrentoperationcertification.", "fields": { "named_original_context": "MARANov11,2024issuerreportsNov5closingHannibal/Hopedaletwosites.222MWINTERCONNECTAPPROVEDcombined,122MWthenoperatingcombined,100MWremainingexpansion;noindividualsplit. SeparateFindlay150MWplan,30MWthenoperatingcreates372approved/152operating/220developmentAGGREGATE. Not372MWineachsite,notallAIIT. End2025targetnotobserved2026energization.270USD/kWacquisitionmultiple=270000USD/MW,not270Mcapex. Hopedalepreviouslyhostednowacquired;potential50%costsavingnotactualmeteredresult." }, "notes": [ "MARANov11,2024issuerreportsNov5closingHannibal/Hopedaletwosites.222MWINTERCONNECTAPPROVEDcombined,122MWthenoperatingcombined,100MWremainingexpansion;noindividualsplit. SeparateFindlay150MWplan,30MWthenoperatingcreates372approved/152operating/220developmentAGGREGATE. Not372MWineachsite,notallAIIT. End2025targetnotobserved2026energization.270USD/kWacquisitionmultiple=270000USD/MW,not270Mcapex. Hopedalepreviouslyhostednowacquired;potential50%costsavingnotactualmeteredresult.", "Sharedaggregatepower/generation,unknownITbasisanddate-rolelimitationscontrol." ], "sources": [ { "url": "https://ir.mara.com/news-events/press-releases/detail/1375/mara-adds-372-megawatts-of-capacity-in-ohio-with-152-megawatts-operational-and-220-megawatts-in-development", "host": "ir.mara.com", "date": "", "published": "", "checked": "2026-10-14", "date_kind": "publication date not established", "label": "Reviewed source" } ], "whole_record_certified": false }, { "overlay": "Codex 3 research cohort 33", "scope": "The November 11, 2024 company release and annual filing describe acquisition of an operational Hopedale site. That is an explicit historic operating account, but the captured later quarterly filing does not provide a named current Hopedale service section. Historic operation and an old expansion forecast do not independently establish exact present component phase. Absence from that filing is not closure, and current Hannibal operation is not transferred to Hopedale.", "fields": { "current_stage_evidence": { "outcome": "historic_named_hopedale_operation_without_current_exact_component_account", "scope": "The November 11, 2024 company release and annual filing describe acquisition of an operational Hopedale site. That is an explicit historic operating account, but the captured later quarterly filing does not provide a named current Hopedale service section. Historic operation and an old expansion forecast do not independently establish exact present component phase. Absence from that filing is not closure, and current Hannibal operation is not transferred to Hopedale." } }, "notes": [ "The November 11, 2024 company release and annual filing describe acquisition of an operational Hopedale site. That is an explicit historic operating account, but the captured later quarterly filing does not provide a named current Hopedale service section. Historic operation and an old expansion forecast do not independently establish exact present component phase. Absence from that filing is not closure, and current Hannibal operation is not transferred to Hopedale.", "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://ir.mara.com/news-events/press-releases/detail/1375/mara-adds-372-megawatts-of-capacity-in-ohio-with-152-megawatts-operational-and-220-megawatts-in-development", "host": "ir.mara.com", "published": "2024-11-11", "date": "2024-11-11", "checked": "2026-10-23", "label": "Reviewed operator source" }, { "url": "https://ir.mara.com/sec-filings/all-sec-filings/content/0001507605-26-000007/0001507605-26-000007.pdf", "host": "ir.mara.com", "published": "", "date": "", "checked": "2026-10-23", "label": "Reviewed government record" }, { "url": "https://ir.mara.com/sec-filings/all-sec-filings/content/0001507605-26-000022/0001507605-26-000022.pdf", "host": "ir.mara.com", "published": "2026-08-06", "date": "2026-08-06", "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": true, "inventory_label_retained": true, "precision_label": "Exact site not published; shown at county level", "summary": "Hopedale · Harrison · Source context reviewed", "event_evidence": [ { "date": "2024-11-11", "text": "MARA published its Ohio acquisition and operating capacity account November 11, 2024, explicitly naming Hopedale. The publication and historical operating account do not certify an exact opening day, current all phase operation or achievement of its later expansion target.", "kind": "announced", "sources": [ { "url": "https://ir.mara.com/news-events/press-releases/detail/1375/mara-adds-372-megawatts-of-capacity-in-ohio-with-152-megawatts-operational-and-220-megawatts-in-development", "host": "ir.mara.com", "published": "2024-11-11", "date": "2024-11-11", "checked": "2026-10-23", "label": "Reviewed operator source" } ] } ], "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": "39067" } } ], "compilation_license": "withheld_pending_owner_decision" }