{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:3742GV742SAV7N2RYXKJHPIQC6","short_pith_number":"pith:3742GV74","schema_version":"1.0","canonical_sha256":"dff9a357fcd4815fb751c5d493bd1017b002de9c587787ac34e5ab4a0f661896","source":{"kind":"arxiv","id":"astro-ph/0501604","version":1},"attestation_state":"computed","paper":{"title":"On the distance, reddening and progenitor of V838 Mon","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.Henden, A.Siviero, A.Vallenari, E.Giro, H.E.Bond, L.Crause, P.M.Marrese, R.L.M.Corradi, R.M.Wagner, R.Sordo, S.Desidera, S.Ragaini, S.Starrfield, S.Villanova, T.Tomov, T.Zwitter, U.Munari","submitted_at":"2005-01-27T14:20:50Z","abstract_excerpt":"Extensive optical and infrared photometry as well as low and high resolution spectroscopy are used as inputs in deriving robust estimates of the reddening, distance and nature of the progenitor of V838 Mon. The reddening is found to obey the R_V=3.1 law and amounts to (i) E(B-V)=0.86 from the interstellar NaI and KI lines, (ii) E(B-V)=0.88 from the energy distribution of the B3V component and (iii) E(B-V)=0.87 from the progression of extinction along the line of sight. The adopted E(B-V)=0.87(+/-0.01) is also the amount required by fitting the progenitor with theoretical isochrones of appropri"},"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/0501604","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-27T14:20:50Z","cross_cats_sorted":[],"title_canon_sha256":"7d123f8e6a730dabb330be761da0f06dffc18040344e651ee79aaa32e98108e4","abstract_canon_sha256":"d5ea05cc7c5f4d34e56f0e589572c1bc0aa5de80f9132be17822d9b2c16e83df"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:50:42.874603Z","signature_b64":"JHz0kwQ+g3lPqST2aaXrhPhI40/UoNIQ/4Ex1bUe7YoX3QwqjKkM76XvLquf+xKLalj4l9akrPbUleytx0jrBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dff9a357fcd4815fb751c5d493bd1017b002de9c587787ac34e5ab4a0f661896","last_reissued_at":"2026-07-04T16:50:42.874223Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:50:42.874223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the distance, reddening and progenitor of V838 Mon","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.Henden, A.Siviero, A.Vallenari, E.Giro, H.E.Bond, L.Crause, P.M.Marrese, R.L.M.Corradi, R.M.Wagner, R.Sordo, S.Desidera, S.Ragaini, S.Starrfield, S.Villanova, T.Tomov, T.Zwitter, U.Munari","submitted_at":"2005-01-27T14:20:50Z","abstract_excerpt":"Extensive optical and infrared photometry as well as low and high resolution spectroscopy are used as inputs in deriving robust estimates of the reddening, distance and nature of the progenitor of V838 Mon. The reddening is found to obey the R_V=3.1 law and amounts to (i) E(B-V)=0.86 from the interstellar NaI and KI lines, (ii) E(B-V)=0.88 from the energy distribution of the B3V component and (iii) E(B-V)=0.87 from the progression of extinction along the line of sight. The adopted E(B-V)=0.87(+/-0.01) is also the amount required by fitting the progenitor with theoretical isochrones of appropri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0501604","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/0501604/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/0501604","created_at":"2026-07-04T16:50:42.874285+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0501604v1","created_at":"2026-07-04T16:50:42.874285+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0501604","created_at":"2026-07-04T16:50:42.874285+00:00"},{"alias_kind":"pith_short_12","alias_value":"3742GV742SAV","created_at":"2026-07-04T16:50:42.874285+00:00"},{"alias_kind":"pith_short_16","alias_value":"3742GV742SAV7N2R","created_at":"2026-07-04T16:50:42.874285+00:00"},{"alias_kind":"pith_short_8","alias_value":"3742GV74","created_at":"2026-07-04T16:50:42.874285+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.17005","citing_title":"Red novae, their progenitors, and remnants","ref_index":86,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6","json":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6.json","graph_json":"https://pith.science/api/pith-number/3742GV742SAV7N2RYXKJHPIQC6/graph.json","events_json":"https://pith.science/api/pith-number/3742GV742SAV7N2RYXKJHPIQC6/events.json","paper":"https://pith.science/paper/3742GV74"},"agent_actions":{"view_html":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6","download_json":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6.json","view_paper":"https://pith.science/paper/3742GV74","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0501604&json=true","fetch_graph":"https://pith.science/api/pith-number/3742GV742SAV7N2RYXKJHPIQC6/graph.json","fetch_events":"https://pith.science/api/pith-number/3742GV742SAV7N2RYXKJHPIQC6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6/action/storage_attestation","attest_author":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6/action/author_attestation","sign_citation":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6/action/citation_signature","submit_replication":"https://pith.science/pith/3742GV742SAV7N2RYXKJHPIQC6/action/replication_record"}},"created_at":"2026-07-04T16:50:42.874285+00:00","updated_at":"2026-07-04T16:50:42.874285+00:00"}