{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:CU47REHOXBSCQXACI4XBQX36V3","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":"49124711b85643828839e0d688301fbaf6123293d3fde67d1193b7276a1067c6","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-03-17T20:00:02Z","title_canon_sha256":"bd93f93fb4e5133ae71020a1f42c648c1745bcdc1c706664806eed17fd8893b8"},"schema_version":"1.0","source":{"id":"1603.05657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.05657","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"arxiv_version","alias_value":"1603.05657v1","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.05657","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"pith_short_12","alias_value":"CU47REHOXBSC","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CU47REHOXBSCQXAC","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CU47REHO","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:a5b9b5a02816664585871db51dc84ab14af13cd6c4b174b67859c80f2fc4b764","target":"graph","created_at":"2026-05-18T01:18:06Z","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":"We discovered two transient events in the Kepler field with light curves that strongly suggest they are type II-P supernovae. Using the fast cadence of the Kepler observations we precisely estimate the rise time to maximum for KSN2011a and KSN2011d as 10.5$\\pm 0.4$ and 13.3$\\pm 0.4$ rest-frame days respectively. Based on fits to idealized analytic models, we find the progenitor radius of KSN2011a (280$\\pm 20$ R$_\\odot$) to be significantly smaller than that for KSN2011d (490$\\pm 20$ R$_\\odot$) but both have similar explosion energies of 2.0$\\pm 0.3\\times 10^{51}$ erg.\n  The rising light curve ","authors_text":"A. Rest, A. Villar, B. E. Tucker, D. Kasen, E. J. Shaya, P. M. Garnavich, R. P. Olling","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-03-17T20:00:02Z","title":"Shock Breakout and Early Light Curves of Type II-P Supernovae Observed with Kepler"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.05657","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":"sha256:6e535b55d9ed8edfa91cafcd8ab9dc194f1384e18ad527e47978b69117a969cc","target":"record","created_at":"2026-05-18T01:18:06Z","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":"49124711b85643828839e0d688301fbaf6123293d3fde67d1193b7276a1067c6","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-03-17T20:00:02Z","title_canon_sha256":"bd93f93fb4e5133ae71020a1f42c648c1745bcdc1c706664806eed17fd8893b8"},"schema_version":"1.0","source":{"id":"1603.05657","kind":"arxiv","version":1}},"canonical_sha256":"1539f890eeb864285c02472e185f7eaef9d15103514673120f1d2caf92eec6b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1539f890eeb864285c02472e185f7eaef9d15103514673120f1d2caf92eec6b1","first_computed_at":"2026-05-18T01:18:06.342572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:06.342572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5ybR/5sbeAqIF/voIUniCqH6aPI4qJhDyWQBKoU57+jXscrebL+hVec2IVMGNouvHHFTvNt26cghl60qeZFFAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:06.343292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.05657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e535b55d9ed8edfa91cafcd8ab9dc194f1384e18ad527e47978b69117a969cc","sha256:a5b9b5a02816664585871db51dc84ab14af13cd6c4b174b67859c80f2fc4b764"],"state_sha256":"ba975852e734d2159ad181c2fdc425e289f7b0587e98a99e657217daa6c0b832"}