{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OESXMVVOSHGZG5A7VBHLKNJYV6","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":"6ff4ba23e70430ca0d335612539823d268fb4ccef27f9e1ed8c28d14ad9f9968","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-12T11:21:17Z","title_canon_sha256":"b9082300da05dfeb807a812bc282a1179c5d60d8c5ac2dfd91fbcac8fb293e44"},"schema_version":"1.0","source":{"id":"1802.03982","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.03982","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"arxiv_version","alias_value":"1802.03982v2","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.03982","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"pith_short_12","alias_value":"OESXMVVOSHGZ","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OESXMVVOSHGZG5A7","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OESXMVVO","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:4a5c5ca6469b62eb49761916d01843fea96a6cd703de654edf51cbed806da019","target":"graph","created_at":"2026-05-18T00:04:30Z","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"},"paper":{"abstract_excerpt":"The Intermediate Palomar Transient Factory reported the discovery of an unusual type II-P supernova iPTF14hls. Instead of a ~100-day plateau as observed for ordinary type II-P supernovae, the light curve of iPTF14hls has at least five distinct peaks, followed by a steep decline at ~1000 days since discovery. Until 500 days since discovery, the effective temperature of iPTF14hls is roughly constant at 5000-6000K . In this paper we propose that iPTF14hls is likely powered by intermittent fallback accretion. It is found that the light curve of iPTF14hls can be well fit by the usual t^{-5/3} accre","authors_text":"Bing Li, Liang-Duan Liu, Li-Ming Rui, Li-Ming Song, Ling-Jun Wang, Shan-Qin Wang, Xiao-Feng Wang, Zach Cano, Zi-Gao Dai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-12T11:21:17Z","title":"A fallback accretion model for the unusual type II-P supernova iPTF14hls"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.03982","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":"sha256:4c821b0d40741be7f9223d6d3e6e4265558b1c2db763d410f5145887401d80a2","target":"record","created_at":"2026-05-18T00:04:30Z","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":"6ff4ba23e70430ca0d335612539823d268fb4ccef27f9e1ed8c28d14ad9f9968","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-12T11:21:17Z","title_canon_sha256":"b9082300da05dfeb807a812bc282a1179c5d60d8c5ac2dfd91fbcac8fb293e44"},"schema_version":"1.0","source":{"id":"1802.03982","kind":"arxiv","version":2}},"canonical_sha256":"71257656ae91cd93741fa84eb53538afbabd688992db3e8a2cc937060fc73e51","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71257656ae91cd93741fa84eb53538afbabd688992db3e8a2cc937060fc73e51","first_computed_at":"2026-05-18T00:04:30.324547Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:30.324547Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OECD8uQUHIJPl4pIHsDWDkG+k65LG8yzhuez3aYX8hW5h4f7rIM3xZy2HZ1hMGutImBTDUO0HLJOLGfAn/ttCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:30.324980Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.03982","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c821b0d40741be7f9223d6d3e6e4265558b1c2db763d410f5145887401d80a2","sha256:4a5c5ca6469b62eb49761916d01843fea96a6cd703de654edf51cbed806da019"],"state_sha256":"093d2394d767aec85cb5a8b6bc4f949cfc4d0a09d44fb1313cb95deefbd6d59e"}