{"api_version":"1","dataset":{"id":"2026-10-27-research-hundredsecond","label":"2026-10-27 · 838 sites","release_status":"published","publishable_as_final":true,"checkpoint_date":"2026-10-27","lifecycle_reference_date":"2026-10-27","updated_at":"2026-10-27","observation_window_start":"2024-08-06","observation_window_end":"2026-10-27"},"site":{"site_id":"vcc-site-4c87177eb4819af9906b","physical_site_stable_key":"curated:dayone-kouvola-koria-hiivuri-campus","name":"DayOne Kouvola Koria Data Center Campus","country":"Finland","country_iso_a2":"FI","latitude":60.84448911,"longitude":26.63056358,"geometry":{"coordinates":[26.63056358,60.84448911],"type":"Point"},"geometry_type":"Point","geometry_source_entity_kinds":["campus"],"geometry_derivations":["direct_geometry"],"geometry_methods":["ryhti_official_permit_building_point_as_project_locator"],"geometry_scope_classes":["official_permit_building_reference_point"],"geometry_authority_classes":["official_source"],"geometry_use_scopes":["project_locator"],"geometry_precision_scopes":["Ryhti reference point for permanent building 1042154966, the 34,751 m2 main data-centre building under permit 302380625P (decided August 14, 2024) on property 286-463-6-4. It is a project locator, not a building footprint, parcel, campus boundary, entrance, survey point or work-at-point claim."],"horizontal_uncertainty_metres":null,"horizontal_uncertainty_unknown_reason":"Ryhti publishes a building reference point without a horizontal accuracy statement.","geometry_evidence_ids":["91bdbc7b-a85d-5023-b835-c5de605f923c"],"project_count":1,"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"project_stable_keys":["curated:dayone-kouvola-koria-hiivuri-campus:current-build"],"statuses":["under_construction"],"oldest_status_as_of":"2026-09-20","newest_status_as_of":"2026-09-20","verification_posture":"authoritative_physical_observation_plus_reviewed_site_locator","independent_imagery_verification":false,"imagery_review_outcomes":["not_reviewed"],"official_boundary":false,"country_slug":"fi","url":"https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-4c87177eb4819af9906b/","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/sites/vcc-site-4c87177eb4819af9906b.json","geometry_licenses":["CC-BY-4.0"],"geometry_attributions":["Finnish Environment Institute Ryhti; CC BY 4.0"]},"projects":[{"project_id":"61b29115-2dd5-5c0e-af29-3eba5f17105e","project_stable_key":"curated:dayone-kouvola-koria-hiivuri-campus:current-build","site_id":"vcc-site-4c87177eb4819af9906b","physical_site_stable_key":"curated:dayone-kouvola-koria-hiivuri-campus","name":"DayOne Kouvola Koria Data Center — current build","country":"Finland","country_iso_a2":"FI","latitude":60.84448911,"longitude":26.63056358,"geometry":{"coordinates":[26.63056358,60.84448911],"type":"Point"},"geometry_type":"Point","geometry_source_entity_kind":"campus","geometry_derivation":"direct_geometry","geometry_method":"ryhti_official_permit_building_point_as_project_locator","geometry_scope_class":"official_permit_building_reference_point","geometry_authority_class":"official_source","geometry_use_scope":"project_locator","geometry_precision_scope":"Ryhti reference point for permanent building 1042154966, the 34,751 m2 main data-centre building under permit 302380625P (decided August 14, 2024) on property 286-463-6-4. It is a project locator, not a building footprint, parcel, campus boundary, entrance, survey point or work-at-point claim.","horizontal_uncertainty_metres":null,"horizontal_uncertainty_unknown_reason":"Ryhti publishes a building reference point without a horizontal accuracy statement.","geometry_evidence_id":"91bdbc7b-a85d-5023-b835-c5de605f923c","last_observed_physical_status":"under_construction","status_as_of":"2026-09-20","status_age_days_at_review":37,"status_method":"authoritative_physical_status_update","status_evidence_id":"f634bd6c-a60e-5db4-91b0-bb658e2263e5","verification_posture":"authoritative_physical_observation_plus_reviewed_site_locator","independent_imagery_verification":false,"imagery_review_outcome":"not_reviewed","development_type":"unknown","development_type_unknown_reason":"not established by selected evidence","operating_model":"unknown","operating_model_unknown_reason":"not established by selected evidence","operating_model_evidence_id":null,"workloads":[],"workload_unknown_reason":"not established by selected evidence","role_claims":[{"evidence_id":"f634bd6c-a60e-5db4-91b0-bb658e2263e5","party":"DayOne Data Centers Limited","relationship_scope":"current","role":"owner"},{"evidence_id":"5327ea80-452a-5e86-bc38-38c5e6310009","party":"Hyperco","relationship_scope":"current","role":"owner"},{"evidence_id":"5327ea80-452a-5e86-bc38-38c5e6310009","party":"TikTok","relationship_scope":"intended","role":"tenant"}],"power_observations":[],"power_unknown_reason":"no typed power observation selected; not estimated","annual_energy_observations":[],"annual_energy_unknown_reason":"no scoped annual-energy inputs; not estimated","efficiency_observations":[],"efficiency_unknown_reason":"no scoped PUE or WUE observation","owner":"DayOne Data Centers Limited; Hyperco","operator":null,"users":null,"tenants":"TikTok","customers":null,"status_source_url":"https://web.archive.org/web/20261011024752id_/https://www.sec.gov/Archives/edgar/data/2118192/000119312526414188/d223752df1.htm","geometry_source_url":"https://paikkatiedot.ymparisto.fi/geoserver/ryhti_permit/ogc/features/v1/collections/open_permit_building/items?f=application%2Fgeo%2Bjson&filter=permanent_permit_identifier%3D%27302380625P%27&limit=10","project_details":[],"evidence_ids":["2a36b394-d20a-522c-8372-b2242cb7bdde","31985b39-8ebb-5ddf-93af-e4407b1a3555","4b2cb75a-2824-5f4d-91ec-c3e1046c1a5f","5327ea80-452a-5e86-bc38-38c5e6310009","91bdbc7b-a85d-5023-b835-c5de605f923c","d7d4ca33-43ab-55e5-be8a-4c24fdc46e65","f634bd6c-a60e-5db4-91b0-bb658e2263e5","fad87b38-85e1-5960-9410-3d07eb6d09c4"],"status_source":{"evidence_id":"f634bd6c-a60e-5db4-91b0-bb658e2263e5","title":"DayOne Data Centers Limited Form F-1 registration statement, filed October 5, 2026 (Internet Archive copy of the EDGAR document)","publisher":"DayOne Data Centers Limited via SEC EDGAR","kind":"regulatory_filing","published_at":"2026-10-05","source_url":"https://web.archive.org/web/20261011024752id_/https://www.sec.gov/Archives/edgar/data/2118192/000119312526414188/d223752df1.htm","license":"source-terms-not-recorded","attribution":"DayOne Data Centers Limited; U.S. Securities and Exchange Commission EDGAR; archived by the Internet Archive Wayback Machine"},"url":"https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-4c87177eb4819af9906b/#project-61b29115-2dd5-5c0e-af29-3eba5f17105e","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/projects/61b29115-2dd5-5c0e-af29-3eba5f17105e.json","geometry_source":{"evidence_id":"91bdbc7b-a85d-5023-b835-c5de605f923c","title":"Ryhti open permit buildings: permit 302380625P, Kouvola property 286-463-6-4","publisher":"Finnish Environment Institute Ryhti","kind":"government_record","published_at":null,"source_url":"https://paikkatiedot.ymparisto.fi/geoserver/ryhti_permit/ogc/features/v1/collections/open_permit_building/items?f=application%2Fgeo%2Bjson&filter=permanent_permit_identifier%3D%27302380625P%27&limit=10","license":"CC-BY-4.0","attribution":"Finnish Environment Institute Ryhti; CC BY 4.0"}}],"evidence":[{"evidence_id":"4b2cb75a-2824-5f4d-91ec-c3e1046c1a5f","roles":["context:identity"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"kind":"government_record","title":"City of Kouvola relays Permit and Supervision Authority notice: Hiivuri data-centre operation change and start despite appeal (LVV-U/106925/2026)","source_url":"https://www.kouvola.fi/ilmoitukset-ja-kuulutukset/lupa-ja-valvontaviraston-ilmoitus-kuulutuksesta-asiassa-hiivurin-datakeskuksen-toiminnan-olennainen-muuttaminen-ja-toiminnan-aloittaminen-muutoksenhausta-huolimatta/","publisher":"City of Kouvola / Lupa- ja valvontavirasto","source_family":"kouvola_city_notices","license":"no-open-license-asserted","attribution":"City of Kouvola; Lupa- ja valvontavirasto","published_at":"2026-09-30","retrieved_at":"2026-10-16T18:23:39.654Z","content_hash":"ceef8dc70cddd4690b15020bbf4fc5198609a41ba970b106f9afe1e8866636d9","publication_date_precision":"day","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-4c87177eb4819af9906b"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/4b2cb75a-2824-5f4d-91ec-c3e1046c1a5f.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/4b2cb75a-2824-5f4d-91ec-c3e1046c1a5f.json","archive_url":"https://web.archive.org/web/20261016182339/https://www.kouvola.fi/ilmoitukset-ja-kuulutukset/lupa-ja-valvontaviraston-ilmoitus-kuulutuksesta-asiassa-hiivurin-datakeskuksen-toiminnan-olennainen-muuttaminen-ja-toiminnan-aloittaminen-muutoksenhausta-huolimatta/"},{"evidence_id":"fad87b38-85e1-5960-9410-3d07eb6d09c4","roles":["context:identity"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"kind":"government_record","title":"City of Kouvola: additional land presale to Hyperco Fin Holdco 1 Oy for the Hiivuri data-centre project","source_url":"https://www.kouvola.fi/ajankohtaiset/kouvola-ja-hyperco-sopivat-lisamaa-alueen-kaupasta-hiivurin-datakeskushankkeen-yhteydessa/","publisher":"City of Kouvola","source_family":"kouvola_city_news","license":"no-open-license-asserted","attribution":"City of Kouvola","published_at":"2025-01-23","retrieved_at":"2026-10-16T18:23:37.950Z","content_hash":"ce3efea7e43fd2b195c4d2f769a01843570eb0faebac341e924bcd5640007415","publication_date_precision":"day","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-4c87177eb4819af9906b"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/fad87b38-85e1-5960-9410-3d07eb6d09c4.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/fad87b38-85e1-5960-9410-3d07eb6d09c4.json","archive_url":"https://web.archive.org/web/20261016182337/https://www.kouvola.fi/ajankohtaiset/kouvola-ja-hyperco-sopivat-lisamaa-alueen-kaupasta-hiivurin-datakeskushankkeen-yhteydessa/"},{"evidence_id":"d7d4ca33-43ab-55e5-be8a-4c24fdc46e65","roles":["context:identity"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"kind":"government_record","title":"City of Kouvola: construction of Hyperco's Korian Hiivuri data centre has started (TikTok main user)","source_url":"https://www.kouvola.fi/ajankohtaiset/hypercon-kouvolan-datakeskuksen-paakayttajaksi-tulee-tiktok/","publisher":"City of Kouvola","source_family":"kouvola_city_news","license":"no-open-license-asserted","attribution":"City of Kouvola","published_at":"2025-05-07","retrieved_at":"2026-10-16T18:23:37.851Z","content_hash":"9d36324954097b2ba6701569600dfd924be305e2123e6a665acec496b0e0ac82","publication_date_precision":"day","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-4c87177eb4819af9906b"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/d7d4ca33-43ab-55e5-be8a-4c24fdc46e65.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/d7d4ca33-43ab-55e5-be8a-4c24fdc46e65.json","archive_url":"https://web.archive.org/web/20261016182337/https://www.kouvola.fi/ajankohtaiset/hypercon-kouvolan-datakeskuksen-paakayttajaksi-tulee-tiktok/"},{"evidence_id":"5327ea80-452a-5e86-bc38-38c5e6310009","roles":["context:identity","role:owner","role:tenant"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"kind":"government_record","title":"City of Kouvola: Koria data-centre project celebrates topping-out (Hyperco and DayOne joint venture)","source_url":"https://www.kouvola.fi/ajankohtaiset/korian-datakeskushankkeessa-juhlitaan-harjannostajaisia/","publisher":"City of Kouvola","source_family":"kouvola_city_news","license":"no-open-license-asserted","attribution":"City of Kouvola","published_at":"2026-05-11","retrieved_at":"2026-10-16T18:23:37.753Z","content_hash":"a9a3b2d3ddd3a4c9d421320b5933bfd29e4c45467139cfb7bb1d5555fe2930e9","publication_date_precision":"day","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-4c87177eb4819af9906b"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/5327ea80-452a-5e86-bc38-38c5e6310009.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/5327ea80-452a-5e86-bc38-38c5e6310009.json","archive_url":"https://web.archive.org/web/20261016182337/https://www.kouvola.fi/ajankohtaiset/korian-datakeskushankkeessa-juhlitaan-harjannostajaisia/"},{"evidence_id":"f634bd6c-a60e-5db4-91b0-bb658e2263e5","roles":["physical_status","role:operator","role:owner"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e","6e2e8be0-c4d1-5273-8729-654a0ae8e078","dbd454ed-d18b-5803-a777-bfd874dcfe22","e934864d-423f-5afa-a9a8-09bd05079ee1","fe92035e-3a00-5a85-b009-34fe9c2c545e"],"kind":"regulatory_filing","title":"DayOne Data Centers Limited Form F-1 registration statement, filed October 5, 2026 (Internet Archive copy of the EDGAR document)","source_url":"https://web.archive.org/web/20261011024752id_/https://www.sec.gov/Archives/edgar/data/2118192/000119312526414188/d223752df1.htm","publisher":"DayOne Data Centers Limited via SEC EDGAR","source_family":"dayone_sec_f1_2026","license":"source-terms-not-recorded","attribution":"DayOne Data Centers Limited; U.S. Securities and Exchange Commission EDGAR; archived by the Internet Archive Wayback Machine","published_at":"2026-10-05","retrieved_at":"2026-10-16T16:48:01.112Z","content_hash":"ef2d8312d6f912c7480d5e7a5e54b11c47918e85c16c4ae5a436871445aab2f0","publication_date_precision":"day","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-163f6ec5acc49b77191a","vcc-site-4c87177eb4819af9906b","vcc-site-5a7d73c964538b72f14d","vcc-site-b020cba78b5fa2123866","vcc-site-efc2f094dac7b05317ca"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/f634bd6c-a60e-5db4-91b0-bb658e2263e5.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/f634bd6c-a60e-5db4-91b0-bb658e2263e5.json","archive_url":"https://web.archive.org/web/20261016164801/https://web.archive.org/web/20261011024752id_/https://www.sec.gov/Archives/edgar/data/2118192/000119312526414188/d223752df1.htm"},{"evidence_id":"2a36b394-d20a-522c-8372-b2242cb7bdde","roles":["context:identity"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"kind":"company_disclosure","title":"DayOne: Finland data center market page (Lahti and Kouvola campuses)","source_url":"https://dayonedc.com/market/finland/","publisher":"DayOne Data Centers","source_family":"dayonedc.com","license":"all-rights-reserved","attribution":"DayOne Data Centers","published_at":null,"retrieved_at":"2026-10-16T18:23:39.052Z","content_hash":"4c1a2c0475eaa2c4697cfe272b3f41412b6f0cc3c12a09f59700352f36bd567c","publication_date_precision":"unknown","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-4c87177eb4819af9906b"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/2a36b394-d20a-522c-8372-b2242cb7bdde.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/2a36b394-d20a-522c-8372-b2242cb7bdde.json","archive_url":"https://web.archive.org/web/20261016182339/https://dayonedc.com/market/finland/"},{"evidence_id":"31985b39-8ebb-5ddf-93af-e4407b1a3555","roles":["context:identity"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"kind":"government_record","title":"NLS INSPIRE cadastral parcel 286-463-6-4 (Kouvola, Hiivuri)","source_url":"https://inspire-wfs.maanmittauslaitos.fi/inspire-wfs/cp/ows?service=WFS&version=2.0.0&request=GetFeature&typeNames=cp%3ACadastralParcel&outputFormat=application%2Fjson&CQL_FILTER=nationalCadastralReference%3D%2728646300060004%27","publisher":"National Land Survey of Finland (NLS)","source_family":"nls_inspire_cadastral_parcels_wfs","license":"CC-BY-4.0","attribution":"Contains data from the National Land Survey of Finland INSPIRE Cadastral Parcels WFS, licensed under CC BY 4.0; retrieved 2026-10-16.","published_at":null,"retrieved_at":"2026-10-16T18:23:39.308Z","content_hash":"d73ed71d5701835871e4bf46b26e93e7ef6d2ee7b173a70e51f0d65177681e1f","publication_date_precision":"unknown","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-4c87177eb4819af9906b"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/31985b39-8ebb-5ddf-93af-e4407b1a3555.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/31985b39-8ebb-5ddf-93af-e4407b1a3555.json","archive_url":"https://web.archive.org/web/20261016182339/https://inspire-wfs.maanmittauslaitos.fi/inspire-wfs/cp/ows?service=WFS&version=2.0.0&request=GetFeature&typeNames=cp%3ACadastralParcel&outputFormat=application%2Fjson&CQL_FILTER=nationalCadastralReference%3D%2728646300060004%27"},{"evidence_id":"91bdbc7b-a85d-5023-b835-c5de605f923c","roles":["geometry"],"project_ids":["61b29115-2dd5-5c0e-af29-3eba5f17105e"],"kind":"government_record","title":"Ryhti open permit buildings: permit 302380625P, Kouvola property 286-463-6-4","source_url":"https://paikkatiedot.ymparisto.fi/geoserver/ryhti_permit/ogc/features/v1/collections/open_permit_building/items?f=application%2Fgeo%2Bjson&filter=permanent_permit_identifier%3D%27302380625P%27&limit=10","publisher":"Finnish Environment Institute Ryhti","source_family":"ryhti_open_permit_buildings","license":"CC-BY-4.0","attribution":"Finnish Environment Institute Ryhti; CC BY 4.0","published_at":null,"retrieved_at":"2026-10-16T18:23:39.167Z","content_hash":"6eb7d21a834ea6ba6156799c26c02615d518e150a28ba74d7ef1751e61ff9b9d","publication_date_precision":"unknown","content_hash_scope":"sha256_exact_response_bytes","source_record_id":null,"source_local_id":null,"source_record_sha256":null,"site_ids":["vcc-site-4c87177eb4819af9906b"],"url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/91bdbc7b-a85d-5023-b835-c5de605f923c.json","api_url":"https://kiankyars.github.io/datacenter-atlas/api/v1/evidence/91bdbc7b-a85d-5023-b835-c5de605f923c.json","archive_url":"https://web.archive.org/web/20261016182339/https://paikkatiedot.ymparisto.fi/geoserver/ryhti_permit/ogc/features/v1/collections/open_permit_building/items?f=application%2Fgeo%2Bjson&filter=permanent_permit_identifier%3D%27302380625P%27&limit=10"}],"links":{"html":"https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-4c87177eb4819af9906b/","sites":"https://kiankyars.github.io/datacenter-atlas/api/v1/sites.json","dataset_download":"https://github.com/kiankyars/datacenter-atlas/releases/download/data-2026-10-27-research-hundredsecond/datacenter-atlas-2026-10-27-research-hundredsecond.zip","geojson":"https://kiankyars.github.io/datacenter-atlas/api/v1/sites/vcc-site-4c87177eb4819af9906b.geojson","explorer":"https://kiankyars.github.io/datacenter-atlas/#site=vcc-site-4c87177eb4819af9906b","dataset_files":"https://kiankyars.github.io/datacenter-atlas/downloads/2026-10-27-research-hundredsecond/","latest_download":"https://kiankyars.github.io/datacenter-atlas/downloads/latest/datacenter-atlas-latest.zip","citation":"https://kiankyars.github.io/datacenter-atlas/api/v1/citation.json"}}