{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1998:5EIS4OSZWFE3HPPLKCLFAWENMG","short_pith_number":"pith:5EIS4OSZ","schema_version":"1.0","canonical_sha256":"e9112e3a59b149b3bdeb509650588d61abfbbae3b5ff7959cfa39b4dd561769d","source":{"kind":"arxiv","id":"astro-ph/9801065","version":1},"attestation_state":"computed","paper":{"title":"Type Ia Supernovae and the Hubble Constant","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Branch (U. of Oklahoma)","submitted_at":"1998-01-08T20:48:28Z","abstract_excerpt":"The focus of this review is the work that has been done during the 1990s on using Type Ia supernovae (SNe Ia) to measure the Hubble constant ($H_0$). SNe Ia are well suited for measuring $H_0$. A straightforward maximum-light color criterion can weed out the minority of observed events that are either intrinsically subluminous or substantially extinguished by dust, leaving a majority subsample that has observational absolute-magnitude dispersions of less than $\\sigma_{obs}(M_B) \\simeq \\sigma_{obs}(M_V) \\simeq 0.3$ mag. Correlations between absolute magnitude and one or more distance-independen"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/9801065","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-01-08T20:48:28Z","cross_cats_sorted":[],"title_canon_sha256":"887c1742647a7ee8b09d856775d68f73cb238611775da1777b663509c60e7577","abstract_canon_sha256":"9a29e93e4ffd40fd756ed529f1fd6651f13cacfeea6e0a8e9cd2f1d477add31d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:06:04.270356Z","signature_b64":"tw4LtCCLXIeQD6yCEG6QCVbquZI8L8W/cMZ+THTLGb9kx+plhtS+m3wq3PDgyvshOezk4gueK2sQQzNCIcUdBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9112e3a59b149b3bdeb509650588d61abfbbae3b5ff7959cfa39b4dd561769d","last_reissued_at":"2026-07-04T16:06:04.270031Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:06:04.270031Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Type Ia Supernovae and the Hubble Constant","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Branch (U. of Oklahoma)","submitted_at":"1998-01-08T20:48:28Z","abstract_excerpt":"The focus of this review is the work that has been done during the 1990s on using Type Ia supernovae (SNe Ia) to measure the Hubble constant ($H_0$). SNe Ia are well suited for measuring $H_0$. A straightforward maximum-light color criterion can weed out the minority of observed events that are either intrinsically subluminous or substantially extinguished by dust, leaving a majority subsample that has observational absolute-magnitude dispersions of less than $\\sigma_{obs}(M_B) \\simeq \\sigma_{obs}(M_V) \\simeq 0.3$ mag. Correlations between absolute magnitude and one or more distance-independen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9801065","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9801065/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9801065","created_at":"2026-07-04T16:06:04.270077+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9801065v1","created_at":"2026-07-04T16:06:04.270077+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9801065","created_at":"2026-07-04T16:06:04.270077+00:00"},{"alias_kind":"pith_short_12","alias_value":"5EIS4OSZWFE3","created_at":"2026-07-04T16:06:04.270077+00:00"},{"alias_kind":"pith_short_16","alias_value":"5EIS4OSZWFE3HPPL","created_at":"2026-07-04T16:06:04.270077+00:00"},{"alias_kind":"pith_short_8","alias_value":"5EIS4OSZ","created_at":"2026-07-04T16:06:04.270077+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG","json":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG.json","graph_json":"https://pith.science/api/pith-number/5EIS4OSZWFE3HPPLKCLFAWENMG/graph.json","events_json":"https://pith.science/api/pith-number/5EIS4OSZWFE3HPPLKCLFAWENMG/events.json","paper":"https://pith.science/paper/5EIS4OSZ"},"agent_actions":{"view_html":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG","download_json":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG.json","view_paper":"https://pith.science/paper/5EIS4OSZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9801065&json=true","fetch_graph":"https://pith.science/api/pith-number/5EIS4OSZWFE3HPPLKCLFAWENMG/graph.json","fetch_events":"https://pith.science/api/pith-number/5EIS4OSZWFE3HPPLKCLFAWENMG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG/action/storage_attestation","attest_author":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG/action/author_attestation","sign_citation":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG/action/citation_signature","submit_replication":"https://pith.science/pith/5EIS4OSZWFE3HPPLKCLFAWENMG/action/replication_record"}},"created_at":"2026-07-04T16:06:04.270077+00:00","updated_at":"2026-07-04T16:06:04.270077+00:00"}