{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:IQPBNONSCRK5ORG27VP5HBDBWP","short_pith_number":"pith:IQPBNONS","schema_version":"1.0","canonical_sha256":"441e16b9b21455d744dafd5fd38461b3d36593bf0036e94a63f1f3292dcbbbdf","source":{"kind":"arxiv","id":"2304.00625","version":3},"attestation_state":"computed","paper":{"title":"Origin of high-velocity ejecta and early red excess emission in the infant Type Ia supernova 2021aefx","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Christopher D. Matzner, Dae-Sik Moon, Hong Soo Park, Kelvin C. C. Leong, Maria R. Drout, Sang Chul Kim, Youngdae Lee, Yuan Qi Ni","submitted_at":"2023-04-02T20:51:35Z","abstract_excerpt":"SN~2021aefx is a normal Type Ia Supernova (SN) with red excess emission over the first $\\sim$ 2 days. We present detailed analysis of this SN using our high-cadence KMTNet multi-band photometry, spectroscopy, and publicly available data. We provide the first measurements of its epochs of explosion (MJD 59529.32 $\\pm$ 0.16) as well as ``first light'' (MJD 59529.85 $\\pm$ 0.55) associated with the main ejecta ${\\rm{^{56}Ni}}$ distribution. This places our first detection of SN 2021aefx at $\\sim -$0.5 hours since ``first light'', indicating the presence of additional power sources. Our peak-spectr"},"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":"2304.00625","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-02T20:51:35Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"51fab1359f2dad472fa8e96e23ffa65f3f2e762c2bc1818292db055f01630a5e","abstract_canon_sha256":"3e9768b6f575a5d1f32a93a2660a1b75ac428ce5adf95fbbd272f04a5fcccf8a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:20:34.484547Z","signature_b64":"EUO7Nd8c0vbrOo6MdLE9VSh0ku5aJrEopfOqTISAyW8Ay9IMiesqplSAz0wN6NLmXT3wVIzYTFg17cNtJuMLBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"441e16b9b21455d744dafd5fd38461b3d36593bf0036e94a63f1f3292dcbbbdf","last_reissued_at":"2026-07-05T10:20:34.484032Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:20:34.484032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Origin of high-velocity ejecta and early red excess emission in the infant Type Ia supernova 2021aefx","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Christopher D. Matzner, Dae-Sik Moon, Hong Soo Park, Kelvin C. C. Leong, Maria R. Drout, Sang Chul Kim, Youngdae Lee, Yuan Qi Ni","submitted_at":"2023-04-02T20:51:35Z","abstract_excerpt":"SN~2021aefx is a normal Type Ia Supernova (SN) with red excess emission over the first $\\sim$ 2 days. We present detailed analysis of this SN using our high-cadence KMTNet multi-band photometry, spectroscopy, and publicly available data. We provide the first measurements of its epochs of explosion (MJD 59529.32 $\\pm$ 0.16) as well as ``first light'' (MJD 59529.85 $\\pm$ 0.55) associated with the main ejecta ${\\rm{^{56}Ni}}$ distribution. This places our first detection of SN 2021aefx at $\\sim -$0.5 hours since ``first light'', indicating the presence of additional power sources. Our peak-spectr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.00625","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2304.00625/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":"2304.00625","created_at":"2026-07-05T10:20:34.484095+00:00"},{"alias_kind":"arxiv_version","alias_value":"2304.00625v3","created_at":"2026-07-05T10:20:34.484095+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.00625","created_at":"2026-07-05T10:20:34.484095+00:00"},{"alias_kind":"pith_short_12","alias_value":"IQPBNONSCRK5","created_at":"2026-07-05T10:20:34.484095+00:00"},{"alias_kind":"pith_short_16","alias_value":"IQPBNONSCRK5ORG2","created_at":"2026-07-05T10:20:34.484095+00:00"},{"alias_kind":"pith_short_8","alias_value":"IQPBNONS","created_at":"2026-07-05T10:20:34.484095+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/IQPBNONSCRK5ORG27VP5HBDBWP","json":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP.json","graph_json":"https://pith.science/api/pith-number/IQPBNONSCRK5ORG27VP5HBDBWP/graph.json","events_json":"https://pith.science/api/pith-number/IQPBNONSCRK5ORG27VP5HBDBWP/events.json","paper":"https://pith.science/paper/IQPBNONS"},"agent_actions":{"view_html":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP","download_json":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP.json","view_paper":"https://pith.science/paper/IQPBNONS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2304.00625&json=true","fetch_graph":"https://pith.science/api/pith-number/IQPBNONSCRK5ORG27VP5HBDBWP/graph.json","fetch_events":"https://pith.science/api/pith-number/IQPBNONSCRK5ORG27VP5HBDBWP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP/action/storage_attestation","attest_author":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP/action/author_attestation","sign_citation":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP/action/citation_signature","submit_replication":"https://pith.science/pith/IQPBNONSCRK5ORG27VP5HBDBWP/action/replication_record"}},"created_at":"2026-07-05T10:20:34.484095+00:00","updated_at":"2026-07-05T10:20:34.484095+00:00"}