{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:SATMBTMZURE2YPW5EN6YRWJJIL","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":"86d8ca3ee025d83242d5fcc1f4831b9cf93ff16e283df78df68ca0ea45566efd","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-14T08:30:25Z","title_canon_sha256":"ccf28e7338edb475820bc262e161a116cee3c15691e73b64247953be81dbd83b"},"schema_version":"1.0","source":{"id":"2011.07240","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.07240","created_at":"2026-07-05T02:07:52Z"},{"alias_kind":"arxiv_version","alias_value":"2011.07240v1","created_at":"2026-07-05T02:07:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.07240","created_at":"2026-07-05T02:07:52Z"},{"alias_kind":"pith_short_12","alias_value":"SATMBTMZURE2","created_at":"2026-07-05T02:07:52Z"},{"alias_kind":"pith_short_16","alias_value":"SATMBTMZURE2YPW5","created_at":"2026-07-05T02:07:52Z"},{"alias_kind":"pith_short_8","alias_value":"SATMBTMZ","created_at":"2026-07-05T02:07:52Z"}],"graph_snapshots":[{"event_id":"sha256:69105761f56afba68256bc30bfb8ddf2fef3fe1e2e47745e09b447a94d6482be","target":"graph","created_at":"2026-07-05T02:07:52Z","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/2011.07240/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study a sample of 16 Type Ia supernovae (SNe Ia) having both spectroscopic and photometric observations within 2 $-$ 3 days after the first light. The early $B-V$ colors of such a sample tends to show a continuous distribution. For objects with normal ejecta velocity (NV), the C~II $\\lambda$6580 feature is always visible in the early spectra while it is absent or very weak in the high-velocity (HV) counterpart. Moreover, the velocities of the detached high-velocity features (HVFs) of Ca~II NIR triplet (CaIR3) above the photosphere are found to be much higher in HV objects than in NV objects","authors_text":"Chengyuan Wu, Danfeng Xiang, Han Lin, Hanna Sai, Jicheng Zhang, Jujia Zhang, Jun Mo, Lifan Wang, Mattia Bulla, Shengyu Yan, Tianmeng Zhang, Wenxiong Li, Xiaofeng Wang, Xinghan Zhang, Yen-Chen Pan, Zhihao Chen","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-14T08:30:25Z","title":"Can Helium-detonation Model Explain the Observed Diversity of Type Ia Supernovae?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.07240","kind":"arxiv","version":1},"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":"sha256:0350982fb2c23045359a304626b0fcf513abe6b27a161ee8f84532c7990357dc","target":"record","created_at":"2026-07-05T02:07:52Z","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":"86d8ca3ee025d83242d5fcc1f4831b9cf93ff16e283df78df68ca0ea45566efd","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-14T08:30:25Z","title_canon_sha256":"ccf28e7338edb475820bc262e161a116cee3c15691e73b64247953be81dbd83b"},"schema_version":"1.0","source":{"id":"2011.07240","kind":"arxiv","version":1}},"canonical_sha256":"9026c0cd99a449ac3edd237d88d92942c0fe82d7485ee285c10f5839c7bfa698","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9026c0cd99a449ac3edd237d88d92942c0fe82d7485ee285c10f5839c7bfa698","first_computed_at":"2026-07-05T02:07:52.220581Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:07:52.220581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+Bh2Y0CtP8b8kGX+DUkh7r5bDjoUvChxFB1hJbG8o6zAb+2YGbhw+g36xjB0SXq1h3+hKrKANX731600EW3jBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:07:52.220977Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.07240","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0350982fb2c23045359a304626b0fcf513abe6b27a161ee8f84532c7990357dc","sha256:69105761f56afba68256bc30bfb8ddf2fef3fe1e2e47745e09b447a94d6482be"],"state_sha256":"d22db11eace01541ab14a0e972020666c6b2535e27bd9670b779233045361d5d"}