{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CVYK3MXV7KJN2TOU3CA7TBZE6L","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"d6f9b7135c22b4f35001b41a139c537b7d3bbb37115189e4507d07e1c66da8a1","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-02-24T19:00:01Z","title_canon_sha256":"7c81738d07fa6f685892bf1c9877d877132883d842fd515afcb3847693ffbfb4"},"schema_version":"1.0","source":{"id":"2502.17556","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.17556","created_at":"2026-07-05T11:56:43Z"},{"alias_kind":"arxiv_version","alias_value":"2502.17556v2","created_at":"2026-07-05T11:56:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.17556","created_at":"2026-07-05T11:56:43Z"},{"alias_kind":"pith_short_12","alias_value":"CVYK3MXV7KJN","created_at":"2026-07-05T11:56:43Z"},{"alias_kind":"pith_short_16","alias_value":"CVYK3MXV7KJN2TOU","created_at":"2026-07-05T11:56:43Z"},{"alias_kind":"pith_short_8","alias_value":"CVYK3MXV","created_at":"2026-07-05T11:56:43Z"}],"graph_snapshots":[{"event_id":"sha256:9a293002452dd72e9911c43cc01a24de3e0f31745641f19214fa3f4535f25d4a","target":"graph","created_at":"2026-07-05T11:56:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.17556/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present optical-to-near-infrared (NIR) photometry and spectroscopy of the Type Ia supernova (SN Ia) 2024epr, including NIR spectra observed within two days of first light. The early-time optical spectra show strong, high-velocity Ca and Si features near rarely-observed velocities at $\\sim$0.1$c$, and the NIR spectra show a C I \"knee.\" Despite early-time, high-velocity features, SN 2024epr evolves into a normal SN Ia, albeit with stronger peak-light Ca absorption than other SNe Ia with the same light curve shape. Although we infer a normal decline rate, $\\Delta m_{15}(B)=1.09\\pm0.12$ mag, fr","authors_text":"A. Do, A. Gagliano, A. R. Wasserman, A. Syncatto, B. J. Shappee, C. Ashall, C.-C. Lin, C. R. Angus, D. A. Coulter, D. D. Desai, D. O. Jones, E. A. Magnier, J. Shi, J. T. Hinkle, K. Auchettl, K. C. Chambers, K.C. Patra, K. Taggart, K. W. Davis, M. A. Tucker, M. E. Huber, M. Kong, P. Chen, P. Minguez, R. J. Foley, R. S. Post, S. A. Severson, S. K. Yadavalli, S. Romagnoli, T. B. Lowe, T. de Boer, W. B. Hoogendam, Y.-C. Pan","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-02-24T19:00:01Z","title":"Seeing the Outer Edge of the Infant Type Ia Supernova 2024epr in the Optical and Near Infrared"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.17556","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:71b7b1359eaf4d0506e1cfe22f4ec54a188a0f59d1ada0a28230ab3ea9b2d537","target":"record","created_at":"2026-07-05T11:56:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d6f9b7135c22b4f35001b41a139c537b7d3bbb37115189e4507d07e1c66da8a1","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-02-24T19:00:01Z","title_canon_sha256":"7c81738d07fa6f685892bf1c9877d877132883d842fd515afcb3847693ffbfb4"},"schema_version":"1.0","source":{"id":"2502.17556","kind":"arxiv","version":2}},"canonical_sha256":"1570adb2f5fa92dd4dd4d881f98724f2f5fee6a3ec480363a3d3ad13deadda18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1570adb2f5fa92dd4dd4d881f98724f2f5fee6a3ec480363a3d3ad13deadda18","first_computed_at":"2026-07-05T11:56:43.634465Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:56:43.634465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tA/KDuF+NLaB6bJv7yc19tbVlnzE1SNrYJKGz93roxfibCZh95b9TIQnfLxQFR0tZjy6FPZ22VNsKMMneSWBBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:56:43.635109Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.17556","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71b7b1359eaf4d0506e1cfe22f4ec54a188a0f59d1ada0a28230ab3ea9b2d537","sha256:9a293002452dd72e9911c43cc01a24de3e0f31745641f19214fa3f4535f25d4a"],"state_sha256":"2e6bdea34066e517eccdc6e69769522420a6d1f65f5f08e673b438e878d8fe2e"}