{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:PG66SUBOFRPDNNHONH5IKGPOHC","short_pith_number":"pith:PG66SUBO","schema_version":"1.0","canonical_sha256":"79bde9502e2c5e36b4ee69fa8519ee38a6724351f492669492031f0e72894ca3","source":{"kind":"arxiv","id":"0805.1188","version":3},"attestation_state":"computed","paper":{"title":"Early spectroscopic identification of SN 2008D","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. J. Levan, A. O. Jaunsen, B. Milvang-Jensen, B. P. Koester, C. C. Th\\\"one, C. Gall, C. Ledoux, D. Bersier, D. J. Watson, D. Malesani, D. Xu, E. Leitet, E. Rol, G. Leloudas, I. Skillen, J. Gorosabel, J. Hjorth, J. P. U. Fynbo, J. Sollerman, K. Wiersema, L. Albert, L. F. Grove, M. Bayliss, M. D. Stritzinger, M. J. Micha{\\l}owski, N. R. Tanvir, P. Jakobsson, P. M. Vreeswijk, T. Augusteijn, T. Pursimo","submitted_at":"2008-05-08T16:04:23Z","abstract_excerpt":"SN 2008D was discovered while following up an unusually bright X-ray transient in the nearby spiral galaxy NGC 2770. We present early optical spectra (obtained 1.75 days after the X-ray transient) which allowed the first identification of the object as a supernova at redshift z = 0.007. These spectra were acquired during the initial declining phase of the light curve, likely produced in the stellar envelope cooling after shock breakout, and rarely observed. They exhibit a rather flat spectral energy distribution with broad undulations, and a strong, W-shaped feature with minima at 3980 and 419"},"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":"0805.1188","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-05-08T16:04:23Z","cross_cats_sorted":[],"title_canon_sha256":"bf8b512179e323423389de181f9347c8ec77ea32ca4d2c9c8562f5781383884f","abstract_canon_sha256":"3b97963c5b81091c7d719bf245c22ba80f4f2e97d94660280136ae5aaf6aa1a0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:33.681186Z","signature_b64":"BcCxEXOiw/ywit65QtGZ0i4nVAC4/MRayue9dmvDLtlGY2IkR6oxIPaDwtQvQzJBC1/foaQ43lkKMdMMA4Y8Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79bde9502e2c5e36b4ee69fa8519ee38a6724351f492669492031f0e72894ca3","last_reissued_at":"2026-05-18T04:29:33.680832Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:33.680832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Early spectroscopic identification of SN 2008D","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. J. Levan, A. O. Jaunsen, B. Milvang-Jensen, B. P. Koester, C. C. Th\\\"one, C. Gall, C. Ledoux, D. Bersier, D. J. Watson, D. Malesani, D. Xu, E. Leitet, E. Rol, G. Leloudas, I. Skillen, J. Gorosabel, J. Hjorth, J. P. U. Fynbo, J. Sollerman, K. Wiersema, L. Albert, L. F. Grove, M. Bayliss, M. D. Stritzinger, M. J. Micha{\\l}owski, N. R. Tanvir, P. Jakobsson, P. M. Vreeswijk, T. Augusteijn, T. Pursimo","submitted_at":"2008-05-08T16:04:23Z","abstract_excerpt":"SN 2008D was discovered while following up an unusually bright X-ray transient in the nearby spiral galaxy NGC 2770. We present early optical spectra (obtained 1.75 days after the X-ray transient) which allowed the first identification of the object as a supernova at redshift z = 0.007. These spectra were acquired during the initial declining phase of the light curve, likely produced in the stellar envelope cooling after shock breakout, and rarely observed. They exhibit a rather flat spectral energy distribution with broad undulations, and a strong, W-shaped feature with minima at 3980 and 419"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.1188","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"0805.1188","created_at":"2026-05-18T04:29:33.680889+00:00"},{"alias_kind":"arxiv_version","alias_value":"0805.1188v3","created_at":"2026-05-18T04:29:33.680889+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.1188","created_at":"2026-05-18T04:29:33.680889+00:00"},{"alias_kind":"pith_short_12","alias_value":"PG66SUBOFRPD","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"PG66SUBOFRPDNNHO","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"PG66SUBO","created_at":"2026-05-18T12:25:57.157939+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":2,"sample":[{"citing_arxiv_id":"2606.06213","citing_title":"Probing a new subclass of llGRB-SN transients: Insights from EP250304a and its associated supernova","ref_index":90,"is_internal_anchor":true},{"citing_arxiv_id":"2606.10011","citing_title":"A Multi-Wavelength View of the First Type Ic-BL Supernova with an Einstein Probe X-ray Shock Breakout","ref_index":60,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC","json":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC.json","graph_json":"https://pith.science/api/pith-number/PG66SUBOFRPDNNHONH5IKGPOHC/graph.json","events_json":"https://pith.science/api/pith-number/PG66SUBOFRPDNNHONH5IKGPOHC/events.json","paper":"https://pith.science/paper/PG66SUBO"},"agent_actions":{"view_html":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC","download_json":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC.json","view_paper":"https://pith.science/paper/PG66SUBO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0805.1188&json=true","fetch_graph":"https://pith.science/api/pith-number/PG66SUBOFRPDNNHONH5IKGPOHC/graph.json","fetch_events":"https://pith.science/api/pith-number/PG66SUBOFRPDNNHONH5IKGPOHC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC/action/storage_attestation","attest_author":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC/action/author_attestation","sign_citation":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC/action/citation_signature","submit_replication":"https://pith.science/pith/PG66SUBOFRPDNNHONH5IKGPOHC/action/replication_record"}},"created_at":"2026-05-18T04:29:33.680889+00:00","updated_at":"2026-05-18T04:29:33.680889+00:00"}