{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:BKPI66AGOGMFLWVY4Y2UIQVF5Q","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":"fa7ad3594ee64529da7298518e623091484e8fcd3dbbf6994d13b5ad85b262a4","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-02-27T10:03:32Z","title_canon_sha256":"cd5d705ca0b8ba566162c40e25a199db2c6a24101f45aa0b56350bd345a53f59"},"schema_version":"1.0","source":{"id":"1402.6842","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.6842","created_at":"2026-05-18T02:44:47Z"},{"alias_kind":"arxiv_version","alias_value":"1402.6842v1","created_at":"2026-05-18T02:44:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.6842","created_at":"2026-05-18T02:44:47Z"},{"alias_kind":"pith_short_12","alias_value":"BKPI66AGOGMF","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BKPI66AGOGMFLWVY","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BKPI66AG","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:e19664f063cacd8e414039598e4660bd01922557ed10f71f9f908c69c903f050","target":"graph","created_at":"2026-05-18T02:44:47Z","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 present a sample of normal type Ia supernovae from the Nearby Supernova Factory dataset with spectrophotometry at sufficiently late phases to estimate the ejected mass using the bolometric light curve. We measure $^{56}$Ni masses from the peak bolometric luminosity, then compare the luminosity in the $^{56}$Co-decay tail to the expected rate of radioactive energy re- lease from ejecta of a given mass. We infer the ejected mass in a Bayesian context using a semi-analytic model of the ejecta, incorporating constraints from contemporary numerical models as priors on the density structure and d","authors_text":"A. Kim, B. A. Weaver, C. Aragon, C. Baltay, C. Buton, C. Saunders, C. Tao, D. Rabinowitz, E. Gangler, E. Pecontal, F. Cellier-Holzem, G. Aldering, G. Smadja, H. K. Fakhouri, J. Guy, J. Nordin, K. Paech, K. Runge, M. Childress, M. Kowalski, M. Kromer, M. Rigault, N. Chotard, P. Antilogus, P. Nugent, R. C. Thomas, R. Pain, R. Pereira, R. Scalzo, S. A. Sim, S. Bailey, S. Bongard, S. Perlmutter, S. Taubenberger, Y. Copin","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-02-27T10:03:32Z","title":"Type Ia supernova bolometric light curves and ejected mass estimates from the Nearby Supernova Factory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.6842","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:e4ac3d2e25163c1fcb596b70b6fb0dadd90667d0b3450b5f7c78bfcee1ca1e12","target":"record","created_at":"2026-05-18T02:44:47Z","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":"fa7ad3594ee64529da7298518e623091484e8fcd3dbbf6994d13b5ad85b262a4","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-02-27T10:03:32Z","title_canon_sha256":"cd5d705ca0b8ba566162c40e25a199db2c6a24101f45aa0b56350bd345a53f59"},"schema_version":"1.0","source":{"id":"1402.6842","kind":"arxiv","version":1}},"canonical_sha256":"0a9e8f7806719855dab8e6354442a5ec18354bafce89180daae40e619b9c4c43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a9e8f7806719855dab8e6354442a5ec18354bafce89180daae40e619b9c4c43","first_computed_at":"2026-05-18T02:44:47.385770Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:44:47.385770Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ds5i/3BvVXjc0AD6CsPG1XnTRe446HoOWN7YB28PWR/1yLWCyEGPvt8hUe7OQJGno+XfEXqQvVnTFxktXUoDDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:44:47.386272Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.6842","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4ac3d2e25163c1fcb596b70b6fb0dadd90667d0b3450b5f7c78bfcee1ca1e12","sha256:e19664f063cacd8e414039598e4660bd01922557ed10f71f9f908c69c903f050"],"state_sha256":"265e4a53aa5dfce9d4fa197d2fe0d3e40bbabc5a58784ceb98728c6bb993e2af"}