Cross-source identifiers
Every current identifier attachment, with the link method and confidence carried verbatim — deterministic links are 1.000; probabilistic links surface their real matcher confidence, never rounded up.
| Scheme | Value | Source table | Link method | Confidence | Since | Provenance |
|---|---|---|---|---|---|---|
| npi | 1891795308 | nppes_providers | deterministic_pk | 1.000 | 2026-06-10 | evidencerecorded: 2026-06-10 methodology: entity-graph/v1 evidence: {"rule":"D-NPI","source_pk":"1891795308","entity_type_code":"2"} |
| pecos_enrlmt_id | O20061020000086 | pecos_providers | exact_npi_in_pecos | 1.000 | 2026-06-16 | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 evidence: {"npi":"1891795308","rule":"D-PECOS","enrlmt_id":"O20061020000086"} |
Graph edges
One-hop relationships — ownership, chain membership, operation — each backed by a federal source row.
| Relationship | Entity | Confidence | Source table | Provenance |
|---|---|---|---|---|
| ← owns | MARK A. JACKSON | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"10/01/2006","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"2668489816","source_pk":42279,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | MICHAEL JACKSON | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"05/14/2024","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"3375552599","source_pk":42280,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | CARL L DRUMMER | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"41","association_date":"01/01/2017","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"3375810849","source_pk":42281,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"41","role_text_owner":"CORPORATE DIRECTOR","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | LISA HARRIS (IN) | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"40","association_date":"12/22/2003","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"3678485216","source_pk":42282,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"40","role_text_owner":"CORPORATE OFFICER","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | OHI ASSET (IN) ELKHART, LLC (MD) | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"37","association_date":"08/31/2012","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"3870078496","source_pk":42283,"type_owner":"O","enrollment_id":"O20061020000086","role_code_owner":"37","role_text_owner":"5% OR GREATER SECURITY INTEREST","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | BLAKE JACKSON | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"10/01/2006","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"4385651538","source_pk":42285,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | DONNA G KELSEY | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"07/18/2024","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"4880504604","source_pk":42286,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | WESSLEY JACKSON | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"10/01/2006","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"5294742441","source_pk":42287,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | STEVEN A VAN CAMP | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"06/01/2023","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"5294898060","source_pk":42288,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | PAUL T BABCOCK | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"40","association_date":"09/30/2020","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"5597175760","source_pk":42290,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"40","role_text_owner":"CORPORATE OFFICER","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | MARK E DICE | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"06/01/2023","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"5799056370","source_pk":42292,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | ETHAN JACKSON | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"10/01/2006","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"5799695433","source_pk":42294,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | STEPHEN STITLE | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"03/16/2016","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"5890603260","source_pk":42295,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | THERESSA WRIGHT | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"05/21/2021","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"6204354855","source_pk":42296,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | BRYCE TOMASI | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"04/07/2025","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"6305321928","source_pk":42297,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | ISRAR SIDDIQI (IN) | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"04/01/2019","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"6406834522","source_pk":42299,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY (IN) | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"10/01/2006","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"6709795974","source_pk":42301,"type_owner":"O","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | STEVEN E CHIES | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"03/17/2016","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"6709879059","source_pk":42303,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | LOLA SIMBECK | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"07/17/2023","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"7113402736","source_pk":42304,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | ANDREW E SHANE | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"02/01/2023","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"7214151224","source_pk":42305,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | THOMAS HANIFY | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"41","association_date":"01/01/2022","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"7618362351","source_pk":42307,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"41","role_text_owner":"CORPORATE DIRECTOR","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | NICHOLE GODDARD | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"40","association_date":"07/11/2022","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"7810915915","source_pk":42308,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"40","role_text_owner":"CORPORATE OFFICER","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | BRENDA HORN | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"41","association_date":"09/20/2023","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"8123470358","source_pk":42310,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"41","role_text_owner":"CORPORATE DIRECTOR","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | AMERICAN SENIOR COMMUNITIES LLC (IN) | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"43","association_date":"10/01/2006","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"8527977792","source_pk":42311,"type_owner":"O","enrollment_id":"O20061020000086","role_code_owner":"43","role_text_owner":"OPERATIONAL/MANAGERIAL CONTROL","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | KELLY A DOUCET | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"41","association_date":"02/03/2025","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"8729599782","source_pk":42313,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"41","role_text_owner":"CORPORATE DIRECTOR","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | DAVID JUSTICE | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"63","association_date":"10/01/2006","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"8921015173","source_pk":42314,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"63","role_text_owner":"MANAGING CONTROL - GOVERNING BODY","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | GARY FISCH (IN) | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"41","association_date":"01/01/2025","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"9133186505","source_pk":42315,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"41","role_text_owner":"CORPORATE DIRECTOR","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | ROBERT W LAZARD | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"41","association_date":"01/29/2021","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"9133537343","source_pk":42316,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"41","role_text_owner":"CORPORATE DIRECTOR","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | MICHAEL O'BRIEN | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"41","association_date":"02/03/2025","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"9638680697","source_pk":42317,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"41","role_text_owner":"CORPORATE DIRECTOR","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | JAMES SIMPSON | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"40","association_date":"08/06/2023","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"9638686819","source_pk":42318,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"40","role_text_owner":"CORPORATE OFFICER","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
| ← owns | VIRGINIA CAINE (IN) | 1.000 | snf_all_owners | evidencerecorded: 2026-06-16 methodology: entity-graph/v1 attributes: {"role_code":"40","association_date":"01/10/1994","percentage_ownership":null} evidence: {"rule":"D-OWNER","owner_pac":"9931230059","source_pk":42320,"type_owner":"I","enrollment_id":"O20061020000086","role_code_owner":"40","role_text_owner":"CORPORATE OFFICER","dst_resolved_via":"pecos_enrlmt_id","percentage_ownership_raw":null,"enrollment_organization_name":"THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY"} |
Current record
Current claims returned for this entity, grouped by provenance subject. The table exposes the source identifier recorded for each claim.
org · 1891795308 JSON
| Metric | Value | Asserted | Source |
|---|---|---|---|
| dba_name | <UNAVAIL> | 2026-06-10 | Centers for Medicare & Medicaid ServicesNPPES NPI Registry (individuals) 202602 publisher: Centers for Medicare & Medicaid Services retrieved: 2026-06-10 sha256: 8b5267e250fd4df6… claim API: JSON |
| enumeration_date | 2005-07-26 | 2026-06-10 | Centers for Medicare & Medicaid ServicesNPPES NPI Registry (individuals) 202602 publisher: Centers for Medicare & Medicaid Services retrieved: 2026-06-10 sha256: 8b5267e250fd4df6… claim API: JSON |
| legal_business_name | THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY | 2026-06-10 | Centers for Medicare & Medicaid ServicesNPPES NPI Registry (individuals) 202602 publisher: Centers for Medicare & Medicaid Services retrieved: 2026-06-10 sha256: 8b5267e250fd4df6… claim API: JSON |
| practice_state | IN | 2026-06-10 | Centers for Medicare & Medicaid ServicesNPPES NPI Registry (individuals) 202602 publisher: Centers for Medicare & Medicaid Services retrieved: 2026-06-10 sha256: 8b5267e250fd4df6… claim API: JSON |
| primary_taxonomy | 314000000X | 2026-06-10 | Centers for Medicare & Medicaid ServicesNPPES NPI Registry (individuals) 202602 publisher: Centers for Medicare & Medicaid Services retrieved: 2026-06-10 sha256: 8b5267e250fd4df6… claim API: JSON |
Provider screening signals
NPI-keyed source families read directly for 1891795308: federal and state integrity lists, CMS Open Payments, Order and Referring eligibility, Medicare opt-out, and enrollment revalidation. Cells expose the source and provenance fields supplied by the selected record. A screening aid — re-confirm any match against the primary source before acting; absence means nothing on file in the data Fonteum currently holds, never a guarantee none exists.
Sanctions & integrity
Coverage staleExclusion coverage is stale or cannot be reconciled to an attested source artifact. This result is indeterminate and must not be treated as a clearance; check the current issuing-agency lists.
- Coverage status: indeterminate
- Screened 26 integrity lists; no negative determination was made.
14-tuple provenance (26)
Industry payments
None on file0 CMS Open Payments records on file for this NPI.
14-tuple provenance (1)
Order & referring eligibility
None on fileNo CMS Order and Referring record on file for this NPI.
14-tuple provenance (1)
Medicare opt-out
None on fileNo CMS Medicare opt-out affidavit on file for this NPI.
14-tuple provenance (1)
Revalidation
On file1 Medicare enrollment record on file.
- Due date: TBD upstream — not due within the ensuing six months.
14-tuple provenance (1)
Point-in-time
Query retained claim coordinates under bitemporal-read/v1. Most facts have no superseded row; dates outside retained coverage may return no prior version, and diffs require both coordinates.
Pick a date to reconstruct, or two dates to diff. Equivalent JSON: /api/v1/history/{subject_type}/{subject_id}?at=… and …/diff?from=…&to=…