{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:74TAGONSAUDXUO35LIMPL5EZKG","short_pith_number":"pith:74TAGONS","schema_version":"1.0","canonical_sha256":"ff260339b205077a3b7d5a18f5f4995185d0504b15edcb577f82cc6cf189e3be","source":{"kind":"arxiv","id":"astro-ph/0401273","version":1},"attestation_state":"computed","paper":{"title":"Cepheid calibration of type Ia Supernovae and the Hubble constant","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Pastorello, E. Cappellaro, G. Altavilla, G. Fiorentino, I. Musella, L. Zampieri, M. Marconi, M. Riello, M. Turatto, R. Barbon, S. Benetti","submitted_at":"2004-01-14T15:45:33Z","abstract_excerpt":"We investigate how a different calibration of the Cepheid Period-Luminosity (PL) relation taking into account the metallicity corrections, affects the absolute magnitude calibration of Supernovae (SNe) Ia and, in turn, the determination of the Hubble constant H_0. We exploit SN Ia light curves from literature and previously unpublished data, to build the M_B -- Delta m_{15}(B) relation and we calibrate the zero point by means of 9 type Ia SNe with Cepheid measured distances. This relation was then used to build the Hubble diagram and in turn to derive H_0. In the attempt to correct for the hos"},"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/0401273","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-01-14T15:45:33Z","cross_cats_sorted":[],"title_canon_sha256":"eda560e95588e0859956533ba89682745ff46fccc19ae0942f172543753802f1","abstract_canon_sha256":"d94686fae62527e1b68b6b43e9ef1fcac4d623037aaf1dea27bd764b3e36dc6b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:42:50.533340Z","signature_b64":"/wzHnZYy8pSF5GfRR1w9E6du8TMwJMyWFC1JjNnDW/QUWInvoT1mFitu3cWw8sobMHVgm9oM8oWR9Xx3k2YgCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff260339b205077a3b7d5a18f5f4995185d0504b15edcb577f82cc6cf189e3be","last_reissued_at":"2026-07-04T16:42:50.532879Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:42:50.532879Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Cepheid calibration of type Ia Supernovae and the Hubble constant","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Pastorello, E. Cappellaro, G. Altavilla, G. Fiorentino, I. Musella, L. Zampieri, M. Marconi, M. Riello, M. Turatto, R. Barbon, S. Benetti","submitted_at":"2004-01-14T15:45:33Z","abstract_excerpt":"We investigate how a different calibration of the Cepheid Period-Luminosity (PL) relation taking into account the metallicity corrections, affects the absolute magnitude calibration of Supernovae (SNe) Ia and, in turn, the determination of the Hubble constant H_0. We exploit SN Ia light curves from literature and previously unpublished data, to build the M_B -- Delta m_{15}(B) relation and we calibrate the zero point by means of 9 type Ia SNe with Cepheid measured distances. This relation was then used to build the Hubble diagram and in turn to derive H_0. In the attempt to correct for the hos"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0401273","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/0401273/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/0401273","created_at":"2026-07-04T16:42:50.532937+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0401273v1","created_at":"2026-07-04T16:42:50.532937+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0401273","created_at":"2026-07-04T16:42:50.532937+00:00"},{"alias_kind":"pith_short_12","alias_value":"74TAGONSAUDX","created_at":"2026-07-04T16:42:50.532937+00:00"},{"alias_kind":"pith_short_16","alias_value":"74TAGONSAUDXUO35","created_at":"2026-07-04T16:42:50.532937+00:00"},{"alias_kind":"pith_short_8","alias_value":"74TAGONS","created_at":"2026-07-04T16:42:50.532937+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/74TAGONSAUDXUO35LIMPL5EZKG","json":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG.json","graph_json":"https://pith.science/api/pith-number/74TAGONSAUDXUO35LIMPL5EZKG/graph.json","events_json":"https://pith.science/api/pith-number/74TAGONSAUDXUO35LIMPL5EZKG/events.json","paper":"https://pith.science/paper/74TAGONS"},"agent_actions":{"view_html":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG","download_json":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG.json","view_paper":"https://pith.science/paper/74TAGONS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0401273&json=true","fetch_graph":"https://pith.science/api/pith-number/74TAGONSAUDXUO35LIMPL5EZKG/graph.json","fetch_events":"https://pith.science/api/pith-number/74TAGONSAUDXUO35LIMPL5EZKG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG/action/storage_attestation","attest_author":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG/action/author_attestation","sign_citation":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG/action/citation_signature","submit_replication":"https://pith.science/pith/74TAGONSAUDXUO35LIMPL5EZKG/action/replication_record"}},"created_at":"2026-07-04T16:42:50.532937+00:00","updated_at":"2026-07-04T16:42:50.532937+00:00"}