{"schema_version":"alpha-governance-record-v2","alpha_id":"alpha:person:gregory-e-abel","record_version":"public-0:d751713988987e9331980363e24189ce","ontology_version":"alpha-governance-ontology-v1","as_of":"2026-10-16T15:13:20.095007+00:00","published_at":"2026-04-21T02:55:15.270549+00:00","section":"evidence","data":{"state":"PUBLISHED","evidence":[{"evidence_id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","aliases":[],"source_type":"sec_filing","source_family":"sec","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","title":"BRK.B DEF 14A director slate","identifier":null,"locator":null,"source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:ai_ml_experience:1","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:board_role:6","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:committee_assignments:7","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:cybersecurity_experience:8","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_company:9","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_title:11","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:technology_background:15","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:ai_ml_experience:1","alpha:claim:person:gregory-e-abel:board_role:6","alpha:claim:person:gregory-e-abel:committee_assignments:7","alpha:claim:person:gregory-e-abel:cybersecurity_experience:8","alpha:claim:person:gregory-e-abel:executive_company:9","alpha:claim:person:gregory-e-abel:executive_title:11","alpha:claim:person:gregory-e-abel:technology_background:15"]},{"evidence_id":"alpha:projection-evidence:document:345d438843d1986d81922a0eb8f5b59d7912187f1701712ab38e4bfe3bbb9ced","aliases":[],"source_type":"sec_filing","source_family":"sec","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","title":"Berkshire Hathaway Inc. director board source","identifier":null,"locator":null,"source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-03T01:47:44.05354+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:board_independence:4","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:board_membership:5","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:board_independence:4","alpha:claim:person:gregory-e-abel:board_membership:5"]},{"evidence_id":"alpha:projection-evidence:document:22e2405846b18c737c64279329fb00044019a84f0dd4af06831fefe78957f1c4","aliases":[],"source_type":"sec_proxy","source_family":"sec","publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","title":null,"identifier":null,"locator":null,"source_date":"2026-03-13","retrieved_at":"2026-03-23T07:55:00.31+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:role:1","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:role:1"]},{"evidence_id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","aliases":[],"source_type":"sec_filing","source_family":"sec","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","title":"BRK-B 10-K executive officers","identifier":null,"locator":null,"source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:ai_ml_experience:1","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:cybersecurity_experience:8","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_company:9","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_title:12","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:other_company_role:14","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:technology_background:15","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:ai_ml_experience:1","alpha:claim:person:gregory-e-abel:cybersecurity_experience:8","alpha:claim:person:gregory-e-abel:executive_company:9","alpha:claim:person:gregory-e-abel:executive_title:12","alpha:claim:person:gregory-e-abel:other_company_role:14","alpha:claim:person:gregory-e-abel:technology_background:15"]},{"evidence_id":"alpha:projection-evidence:document:5da5fb1ff92f7afdca9fe46cd508540b0d5d4c0af1bb5c449aa324904a217618","aliases":[],"source_type":"sec_filing","source_family":"sec","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","title":"BRK.B 10-K executive officers","identifier":null,"locator":null,"source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:06.613944+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:executive_company:9","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_title:12","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:executive_company:9","alpha:claim:person:gregory-e-abel:executive_title:12"]},{"evidence_id":"alpha:projection-evidence:document:09c28e4e80483461aaf5cbcc0fb73a49e189dfb763dc601ae5f9d5f3e557a9fb","aliases":[],"source_type":"sec_filing","source_family":"sec","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","title":"BRK-A 10-K executive officers","identifier":null,"locator":null,"source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:12:17.421858+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:executive_company:9","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_title:12","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:executive_company:9","alpha:claim:person:gregory-e-abel:executive_title:12"]},{"evidence_id":"alpha:projection-evidence:document:0d836c0ffc4ee02592fac57c5f80d1e0e0a9ea99f3fa8775213aa994d910085d","aliases":[],"source_type":"leadership_page","source_family":"sec","publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","title":null,"identifier":null,"locator":null,"source_date":null,"retrieved_at":"2026-09-02T00:15:00+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:role:2","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:role:2"]},{"evidence_id":"alpha:projection-evidence:document:67f3128e44dcc2825e3e9f73798fdc748d6731ad59c41df838e4b281b2fd4c24","aliases":[],"source_type":"sec_filing","source_family":"sec","publisher":"SEC EDGAR","url":null,"title":"BRK.B executive roster source","identifier":null,"locator":null,"source_date":null,"retrieved_at":"2026-05-03T15:42:45.028877+00:00","content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:ai_expertise:2","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:ai_governance_relevance:3","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_company:9","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_function:10","stance":"supports"},{"claim_id":"alpha:claim:person:gregory-e-abel:executive_title:12","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:ai_expertise:2","alpha:claim:person:gregory-e-abel:ai_governance_relevance:3","alpha:claim:person:gregory-e-abel:executive_company:9","alpha:claim:person:gregory-e-abel:executive_function:10","alpha:claim:person:gregory-e-abel:executive_title:12"]},{"evidence_id":"alpha:projection-evidence:0c943eb4426501bf2ffea87869246c4c659d4d5ba529ec6f96c7e32550b17205","aliases":[],"source_type":"public_source","source_family":"sec","publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","title":null,"identifier":null,"locator":null,"source_date":null,"retrieved_at":null,"content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:board_membership:5","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:board_membership:5"]},{"evidence_id":"alpha:projection-evidence:cc34ba2c4cc8c27c2239c5beefd79434dbd21499b05cb1290bf93f4a737ed8f2","aliases":[],"source_type":"public_source","source_family":"sec","publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","title":null,"identifier":null,"locator":null,"source_date":null,"retrieved_at":null,"content_hash":null,"authority":{"policy_version":"alpha-source-authority-v1","tier":"authoritative","score":100,"source_family":"sec","reasons":["Matched sec source policy."]},"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"},"stance":[{"claim_id":"alpha:claim:person:gregory-e-abel:experience:13","stance":"supports"}],"claim_ids":["alpha:claim:person:gregory-e-abel:experience:13"]}]},"claims":[{"id":"alpha:claim:person:gregory-e-abel:role:1","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:hasCurrentRole","object_id":"alpha:company:berkshire-hathaway","object_label":"Berkshire Hathaway","object_source_name_forms":["Berkshire Hathaway"],"value":"Director at Berkshire Hathaway","claim_type":"professional_role","predicate_id":"alpha:predicate:professional_role","predicate_version":1,"machine_key":"professional_role","human_label":"Professional Role","governed_predicate":true,"machine_value":{"role_category":"director"},"corroboration_count":1,"source_claim_count":1,"valid_from":"2018-01-01","valid_to":null,"recorded_at":"2026-05-15T23:52:34.814+00:00","sources":[{"id":"alpha:projection-evidence:document:22e2405846b18c737c64279329fb00044019a84f0dd4af06831fefe78957f1c4","identity_scope":"source_document_reference","source_type":"sec_proxy","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13","retrieved_at":"2026-03-23T07:55:00.31+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13","effective_from":"2018-01-01","effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:34.814+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"confirmed","review_state":"none","confidence":0.85,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:role:2","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:hasCurrentRole","object_id":"alpha:company:berkshire-hathaway","object_label":"Berkshire Hathaway","object_source_name_forms":["Berkshire Hathaway"],"value":"Chief Executive Officer at Berkshire Hathaway","claim_type":"professional_role","predicate_id":"alpha:predicate:professional_role","predicate_version":1,"machine_key":"professional_role","human_label":"Professional Role","governed_predicate":true,"machine_value":{"role_category":"executive"},"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-15T23:52:34.814+00:00","sources":[{"id":"alpha:projection-evidence:document:0d836c0ffc4ee02592fac57c5f80d1e0e0a9ea99f3fa8775213aa994d910085d","identity_scope":"source_document_reference","source_type":"leadership_page","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":null,"retrieved_at":"2026-09-02T00:15:00+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":null,"effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:34.814+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"confirmed","review_state":"none","confidence":0.9,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:ai_ml_experience:1","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:ai_ml_experience","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"AI and ML experience: not identified in the cited filing","claim_type":"ai_ml_experience","predicate_id":"alpha:predicate:ai_ml_experience","predicate_version":1,"machine_key":"ai_ml_experience","human_label":"AI and ML experience","governed_predicate":true,"machine_value":false,"corroboration_count":2,"source_claim_count":2,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-09T06:26:53.224941+00:00","sources":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:35.005667+00:00","verified_at":null,"verification_state":"corroborated","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.72,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:ai_expertise:2","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:ai_expertise","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"AI expertise: not identified in the cited filing","claim_type":"ai_expertise","predicate_id":"alpha:predicate:ai_expertise","predicate_version":1,"machine_key":"ai_expertise","human_label":"AI expertise","governed_predicate":true,"machine_value":false,"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-03T15:43:16.717538+00:00","sources":[{"id":"alpha:projection-evidence:document:67f3128e44dcc2825e3e9f73798fdc748d6731ad59c41df838e4b281b2fd4c24","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B executive roster source","publisher":"SEC EDGAR","url":null,"source_date":null,"retrieved_at":"2026-05-03T15:42:45.028877+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":null,"effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-03T15:43:16.717538+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.94,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:ai_governance_relevance:3","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:ai_governance_relevance","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"AI governance relevance reported from role and filings","claim_type":"ai_governance_relevance","predicate_id":"alpha:predicate:ai_governance_relevance","predicate_version":1,"machine_key":"ai_governance_relevance","human_label":"AI governance relevance","governed_predicate":true,"machine_value":true,"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-03T15:43:16.717538+00:00","sources":[{"id":"alpha:projection-evidence:document:67f3128e44dcc2825e3e9f73798fdc748d6731ad59c41df838e4b281b2fd4c24","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B executive roster source","publisher":"SEC EDGAR","url":null,"source_date":null,"retrieved_at":"2026-05-03T15:42:45.028877+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":null,"effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-03T15:43:16.717538+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.94,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:board_independence:4","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:board_independence","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Not independent (executive director)","claim_type":"board_independence","predicate_id":"alpha:predicate:board_independence","predicate_version":1,"machine_key":"board_independence","human_label":"Board independence","governed_predicate":true,"machine_value":false,"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-03T01:56:40.205705+00:00","sources":[{"id":"alpha:projection-evidence:document:345d438843d1986d81922a0eb8f5b59d7912187f1701712ab38e4bfe3bbb9ced","identity_scope":"source_document_reference","source_type":"sec_filing","title":"Berkshire Hathaway Inc. director board source","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-03T01:47:44.05354+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-03T01:56:40.205705+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.95,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:board_membership:5","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:board_membership","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Serves on the board of Berkshire Hathaway Inc.","claim_type":"board_membership","predicate_id":"alpha:predicate:board_membership","predicate_version":1,"machine_key":"board_membership","human_label":"Board membership","governed_predicate":true,"machine_value":{"name":"Berkshire Hathaway Inc.","ticker":"BRK.B"},"corroboration_count":2,"source_claim_count":3,"valid_from":"2018-01-01","valid_to":null,"recorded_at":"2026-05-03T01:56:40.205705+00:00","sources":[{"id":"alpha:projection-evidence:document:345d438843d1986d81922a0eb8f5b59d7912187f1701712ab38e4bfe3bbb9ced","identity_scope":"source_document_reference","source_type":"sec_filing","title":"Berkshire Hathaway Inc. director board source","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-03T01:47:44.05354+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:0c943eb4426501bf2ffea87869246c4c659d4d5ba529ec6f96c7e32550b17205","identity_scope":"representation_reference","source_type":"public_source","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":null,"retrieved_at":null,"locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":"2018-01-01","effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-03T01:56:40.205705+00:00","verified_at":null,"verification_state":"corroborated","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.95,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:board_role:6","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:board_role","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Board role: Director","claim_type":"board_role","predicate_id":"alpha:predicate:board_role","predicate_version":1,"machine_key":"board_role","human_label":"Board role","governed_predicate":true,"machine_value":{"title":"Director"},"corroboration_count":1,"source_claim_count":1,"valid_from":"2026-03-13","valid_to":null,"recorded_at":"2026-05-09T06:26:53.188407+00:00","sources":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":"2026-03-13","effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-09T06:26:53.188407+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.92,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:committee_assignments:7","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:committee_assignments","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"No committee assignment disclosed in the cited filing","claim_type":"committee_assignments","predicate_id":"alpha:predicate:committee_assignments","predicate_version":1,"machine_key":"committee_assignments","human_label":"Committee assignments","governed_predicate":true,"machine_value":[],"corroboration_count":1,"source_claim_count":1,"valid_from":"2026-03-13","valid_to":null,"recorded_at":"2026-05-09T06:26:53.205562+00:00","sources":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":"2026-03-13","effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-09T06:26:53.205562+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.88,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:cybersecurity_experience:8","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:cybersecurity_experience","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Cybersecurity experience: not identified in the cited filing","claim_type":"cybersecurity_experience","predicate_id":"alpha:predicate:cybersecurity_experience","predicate_version":1,"machine_key":"cybersecurity_experience","human_label":"Cybersecurity experience","governed_predicate":true,"machine_value":false,"corroboration_count":2,"source_claim_count":2,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-09T06:26:53.257223+00:00","sources":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:35.045529+00:00","verified_at":null,"verification_state":"corroborated","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.72,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:executive_company:9","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:executive_company","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Executive at Berkshire Hathaway Inc.","claim_type":"executive_company","predicate_id":"alpha:predicate:executive_company","predicate_version":1,"machine_key":"executive_company","human_label":"Executive company","governed_predicate":true,"machine_value":{"name":"Berkshire Hathaway Inc."},"corroboration_count":5,"source_claim_count":5,"valid_from":"2026-03-02","valid_to":null,"recorded_at":"2026-05-03T15:43:16.717538+00:00","sources":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:5da5fb1ff92f7afdca9fe46cd508540b0d5d4c0af1bb5c449aa324904a217618","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:06.613944+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:09c28e4e80483461aaf5cbcc0fb73a49e189dfb763dc601ae5f9d5f3e557a9fb","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-A 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:12:17.421858+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:67f3128e44dcc2825e3e9f73798fdc748d6731ad59c41df838e4b281b2fd4c24","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B executive roster source","publisher":"SEC EDGAR","url":null,"source_date":null,"retrieved_at":"2026-05-03T15:42:45.028877+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":"2026-03-02","effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-07-28T15:53:26.452358+00:00","verified_at":null,"verification_state":"corroborated","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.94,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:executive_function:10","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:executive_function","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Other Executive (OTHER_EXECUTIVE)","claim_type":"executive_function","predicate_id":"alpha:predicate:executive_function","predicate_version":1,"machine_key":"executive_function","human_label":"Executive function","governed_predicate":true,"machine_value":{"role_family":"other_executive","role_type_normalized":"other_executive"},"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-03T15:43:16.717538+00:00","sources":[{"id":"alpha:projection-evidence:document:67f3128e44dcc2825e3e9f73798fdc748d6731ad59c41df838e4b281b2fd4c24","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B executive roster source","publisher":"SEC EDGAR","url":null,"source_date":null,"retrieved_at":"2026-05-03T15:42:45.028877+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":null,"effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-03T15:43:16.717538+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.94,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:executive_title:11","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:executive_title","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Executive title: Chief Executive Officer","claim_type":"executive_title","predicate_id":"alpha:predicate:executive_title","predicate_version":1,"machine_key":"executive_title","human_label":"Executive title","governed_predicate":true,"machine_value":{"title":"Chief Executive Officer"},"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-09T06:26:53.303241+00:00","sources":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-09T06:26:53.303241+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.85,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:executive_title:12","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:executive_title","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Executive title: Vice Chairman Non-Insurance Operations","claim_type":"executive_title","predicate_id":"alpha:predicate:executive_title","predicate_version":1,"machine_key":"executive_title","human_label":"Executive title","governed_predicate":true,"machine_value":{"title":"Vice Chairman Non-Insurance Operations"},"corroboration_count":4,"source_claim_count":4,"valid_from":"2026-03-02","valid_to":null,"recorded_at":"2026-05-03T15:43:16.717538+00:00","sources":[{"id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:5da5fb1ff92f7afdca9fe46cd508540b0d5d4c0af1bb5c449aa324904a217618","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:06.613944+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:09c28e4e80483461aaf5cbcc0fb73a49e189dfb763dc601ae5f9d5f3e557a9fb","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-A 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:12:17.421858+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:67f3128e44dcc2825e3e9f73798fdc748d6731ad59c41df838e4b281b2fd4c24","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B executive roster source","publisher":"SEC EDGAR","url":null,"source_date":null,"retrieved_at":"2026-05-03T15:42:45.028877+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-02T00:00:00+00:00","effective_from":"2026-03-02","effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-07-28T15:53:26.452358+00:00","verified_at":null,"verification_state":"corroborated","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.94,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:experience:13","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:experience","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Chief Executive Officer at Berkshire Hathaway (Current · start date not disclosed)","claim_type":"experience","predicate_id":"alpha:predicate:ungoverned:experience","predicate_version":0,"machine_key":"experience","human_label":"Experience","governed_predicate":false,"machine_value":{"title":"Chief Executive Officer","period":"Current · start date not disclosed","organization":"Berkshire Hathaway"},"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-04-21T02:55:15.270549+00:00","sources":[{"id":"alpha:projection-evidence:cc34ba2c4cc8c27c2239c5beefd79434dbd21499b05cb1290bf93f4a737ed8f2","identity_scope":"representation_reference","source_type":"public_source","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":null,"retrieved_at":null,"locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":null,"effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:34.814+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"confirmed/confirmed","review_state":"none","confidence":null,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:other_company_role:14","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:other_company_role","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Gregory E. Abel is also linked to Berkshire Hathaway Inc. as Chief Executive Officer.","claim_type":"other_company_role","predicate_id":"alpha:predicate:ungoverned:other_company_role","predicate_version":0,"machine_key":"other_company_role","human_label":"Other Company Role","governed_predicate":false,"machine_value":{"role":"Chief Executive Officer","company":"Berkshire Hathaway Inc."},"corroboration_count":1,"source_claim_count":1,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-15T23:52:35.081422+00:00","sources":[{"id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-02T00:00:00+00:00","effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:35.081422+00:00","verified_at":null,"verification_state":"source_reported","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.7,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"},{"id":"alpha:claim:person:gregory-e-abel:technology_background:15","subject_id":"alpha:person:gregory-e-abel","predicate":"alpha:technology_background","object_id":null,"object_label":null,"object_source_name_forms":[],"value":"Technology background: not identified in the cited filing","claim_type":"technology_background","predicate_id":"alpha:predicate:technology_background","predicate_version":1,"machine_key":"technology_background","human_label":"Technology background","governed_predicate":true,"machine_value":false,"corroboration_count":2,"source_claim_count":2,"valid_from":null,"valid_to":null,"recorded_at":"2026-05-09T06:26:53.240342+00:00","sources":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"source_date":"2026-03-13T00:00:00+00:00","effective_from":null,"effective_until":null,"observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:35.026151+00:00","verified_at":null,"verification_state":"corroborated","legacy_verification_label":"verified/confirmed","review_state":"none","confidence":0.72,"assertion_type":"source_reported","evidence_state":"linked","publication_state":"PUBLISHED","record_version":"public-0:d751713988987e9331980363e24189ce"}],"evidence":[{"id":"alpha:projection-evidence:document:634f0a182587fb3df87f47b594e3eb5f191bb17886732e70d3485d53e3fb8eaa","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B DEF 14A director slate","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:53.113594+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:345d438843d1986d81922a0eb8f5b59d7912187f1701712ab38e4bfe3bbb9ced","identity_scope":"source_document_reference","source_type":"sec_filing","title":"Berkshire Hathaway Inc. director board source","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13T00:00:00+00:00","retrieved_at":"2026-05-03T01:47:44.05354+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:22e2405846b18c737c64279329fb00044019a84f0dd4af06831fefe78957f1c4","identity_scope":"source_document_reference","source_type":"sec_proxy","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":"2026-03-13","retrieved_at":"2026-03-23T07:55:00.31+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:93865feca5655828b43440943fb9e2ccd3cbd00e72032f3dc9cfab17b699802c","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:53:26.452358+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:5da5fb1ff92f7afdca9fe46cd508540b0d5d4c0af1bb5c449aa324904a217618","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-05-09T06:26:06.613944+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:09c28e4e80483461aaf5cbcc0fb73a49e189dfb763dc601ae5f9d5f3e557a9fb","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK-A 10-K executive officers","publisher":"SEC EDGAR","url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":"2026-03-02T00:00:00+00:00","retrieved_at":"2026-07-28T15:12:17.421858+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:0d836c0ffc4ee02592fac57c5f80d1e0e0a9ea99f3fa8775213aa994d910085d","identity_scope":"source_document_reference","source_type":"leadership_page","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":null,"retrieved_at":"2026-09-02T00:15:00+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:document:67f3128e44dcc2825e3e9f73798fdc748d6731ad59c41df838e4b281b2fd4c24","identity_scope":"source_document_reference","source_type":"sec_filing","title":"BRK.B executive roster source","publisher":"SEC EDGAR","url":null,"source_date":null,"retrieved_at":"2026-05-03T15:42:45.028877+00:00","locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:0c943eb4426501bf2ffea87869246c4c659d4d5ba529ec6f96c7e32550b17205","identity_scope":"representation_reference","source_type":"public_source","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm","source_date":null,"retrieved_at":null,"locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}},{"id":"alpha:projection-evidence:cc34ba2c4cc8c27c2239c5beefd79434dbd21499b05cb1290bf93f4a737ed8f2","identity_scope":"representation_reference","source_type":"public_source","title":null,"publisher":null,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm","source_date":null,"retrieved_at":null,"locator":null,"use_rights":{"schema_version":"alpha-source-use-rights-v1","classification":"unknown","public_retrieval":"not_specified","agent_retrieval":"not_specified","redistribution":"not_granted","derived_use":"not_specified","model_training":"not_granted","retention":"not_specified","attribution_required":null,"license_id":null,"terms_url":null,"reviewed_at":null,"derivation":"fail_closed_unknown"}}],"coverage_state":"PUBLISHED","quality":{"schema_version":"alpha-record-quality-v2","overall":0.919,"status":"excellent","publication_readiness":"ready","dimensions":{"identity":1,"coverage":0.8,"freshness":1,"evidence_completeness":1,"source_authority":1,"cross_source_agreement":0.838,"temporal_completeness":0.5},"diagnostics":{"published_claims":17,"factual_claims":17,"claims_with_linked_evidence":17,"disputed_claims":0,"conflicts":0,"stale_claims":0,"stale_claim_ids":[],"temporal_claims":2,"temporal_claims_with_valid_from":1,"missing_coverage_sections":["ratings"],"missing_expected_claims":[]},"derivation":"deterministic_record_projection"},"publication":{"state":"PUBLISHED","published_at":"2026-04-21T02:55:15.270549+00:00","observed_at":"2026-10-16T15:13:19.608406+00:00","reviewed_at":"2026-05-15T23:52:34.814+00:00","verified_at":null},"verification":{"schema_version":"alpha-verification-states-v1","state":"corroborated","identity_ownership":"unclaimed","assurance_level":null,"claim_state_counts":{"source_reported":11,"corroborated":6,"alpha_verified":0,"disputed":0,"superseded":0},"derivation":"claim_states+identity_ownership","summary":"At least one published claim is corroborated by two or more public sources. Profile ownership is unclaimed.","facets":[{"facet":"identity","state":"unclaimed"},{"facet":"evidence","state":"corroborated"},{"facet":"evaluation","state":"not_evaluated"},{"facet":"monitoring","state":null},{"facet":"authority","state":null},{"facet":"freshness","state":"current"}]},"rights":{"public_retrieval":"allowed","agent_retrieval":"allowed","redistribution":"not_granted","model_training":"not_granted","commercial_use":"not_specified","relationship_pathfinding":"not_granted","direct_contact":"not_granted"},"resource":{"uri":"alpha://person/gregory-e-abel/evidence","section":"evidence","href":"https://registry.alpha.ac/api/public/profiles/gregory-e-abel?format=record&section=evidence","media_type":"application/json","availability":"contract"},"limitations":["Only permissioned public claims and evidence are included.","Absence of a claim is not evidence that the underlying fact is false.","Public retrieval does not grant model-training or redistribution rights.","Private relationships and Council activity are excluded."]}