{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:BUVO6L65Y47SQ7ABHDUWT34MFQ","short_pith_number":"pith:BUVO6L65","canonical_record":{"source":{"id":"0910.1590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-08T20:06:37Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"df0ce828829e5e144fc9942a156061cb3060b2128a50bb66ef76373e9882a8f4","abstract_canon_sha256":"8f6675e0be17ba535e14a078c3a5c1fb088ebcc65ebc469dc43f574f1dba7b2f"},"schema_version":"1.0"},"canonical_sha256":"0d2aef2fddc73f287c0138e969ef8c2c22590cf4b21526fa2e43845c30f91ce2","source":{"kind":"arxiv","id":"0910.1590","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1590","created_at":"2026-05-18T02:11:25Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1590v1","created_at":"2026-05-18T02:11:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1590","created_at":"2026-05-18T02:11:25Z"},{"alias_kind":"pith_short_12","alias_value":"BUVO6L65Y47S","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BUVO6L65Y47SQ7AB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BUVO6L65","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:BUVO6L65Y47SQ7ABHDUWT34MFQ","target":"record","payload":{"canonical_record":{"source":{"id":"0910.1590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-08T20:06:37Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"df0ce828829e5e144fc9942a156061cb3060b2128a50bb66ef76373e9882a8f4","abstract_canon_sha256":"8f6675e0be17ba535e14a078c3a5c1fb088ebcc65ebc469dc43f574f1dba7b2f"},"schema_version":"1.0"},"canonical_sha256":"0d2aef2fddc73f287c0138e969ef8c2c22590cf4b21526fa2e43845c30f91ce2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:25.398199Z","signature_b64":"6n7UuvXP73iC7SvFryob/n2G1GQNF5XUIhX627odEn4BXziUMdoRe/5XPFkInQ44iABDpndw1ATw6XN9hwiYBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d2aef2fddc73f287c0138e969ef8c2c22590cf4b21526fa2e43845c30f91ce2","last_reissued_at":"2026-05-18T02:11:25.397618Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:25.397618Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.1590","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:11:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tbmAmPj8XPaWhvBeZqzLbAFBhgtuU6PmuSLM24P9m59u0tgsK/aUSzoMaHtl3CvBVcYGJxGeHy31W2R2j/wQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T20:12:30.154747Z"},"content_sha256":"092632dc89296b3280104f3e9b0c49e58c1ff0145b9b9e6d6c136950d8ac0d22","schema_version":"1.0","event_id":"sha256:092632dc89296b3280104f3e9b0c49e58c1ff0145b9b9e6d6c136950d8ac0d22"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:BUVO6L65Y47SQ7ABHDUWT34MFQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Type II Supernovae: Model Light Curves and Standard Candle Relationships","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Daniel Kasen, S.E. Woosley","submitted_at":"2009-10-08T20:06:37Z","abstract_excerpt":"A survey of Type II supernovae explosion models has been carried out to determine how their light curves and spectra vary with their mass, metallicity, and explosion energy. The presupernova models are taken from a recent survey of massive stellar evolution at solar metallicity supplemented by new calculations at subsolar metallicity. Explosions are simulated by the motion of a piston near the edge of the iron core and the resulting light curves and spectra are calculated using full multi-wavelength radiation transport. Formulae are developed that describe approximately how the model observabl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1590","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:11:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qtg673R5Rgvyx95aFF8R8wboyst1qcG+cbwUvRZ0diP1f7x0oozFe633toFm/THQXANPxGAfNRW+XRpHaf7bAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T20:12:30.155086Z"},"content_sha256":"c0ca10b716eed6e735730f60c5a0b32afa9e199aa9016ea63675b11d512195c1","schema_version":"1.0","event_id":"sha256:c0ca10b716eed6e735730f60c5a0b32afa9e199aa9016ea63675b11d512195c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BUVO6L65Y47SQ7ABHDUWT34MFQ/bundle.json","state_url":"https://pith.science/pith/BUVO6L65Y47SQ7ABHDUWT34MFQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BUVO6L65Y47SQ7ABHDUWT34MFQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-26T20:12:30Z","links":{"resolver":"https://pith.science/pith/BUVO6L65Y47SQ7ABHDUWT34MFQ","bundle":"https://pith.science/pith/BUVO6L65Y47SQ7ABHDUWT34MFQ/bundle.json","state":"https://pith.science/pith/BUVO6L65Y47SQ7ABHDUWT34MFQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BUVO6L65Y47SQ7ABHDUWT34MFQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BUVO6L65Y47SQ7ABHDUWT34MFQ","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":"8f6675e0be17ba535e14a078c3a5c1fb088ebcc65ebc469dc43f574f1dba7b2f","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-08T20:06:37Z","title_canon_sha256":"df0ce828829e5e144fc9942a156061cb3060b2128a50bb66ef76373e9882a8f4"},"schema_version":"1.0","source":{"id":"0910.1590","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1590","created_at":"2026-05-18T02:11:25Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1590v1","created_at":"2026-05-18T02:11:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1590","created_at":"2026-05-18T02:11:25Z"},{"alias_kind":"pith_short_12","alias_value":"BUVO6L65Y47S","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BUVO6L65Y47SQ7AB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BUVO6L65","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:c0ca10b716eed6e735730f60c5a0b32afa9e199aa9016ea63675b11d512195c1","target":"graph","created_at":"2026-05-18T02:11:25Z","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":"A survey of Type II supernovae explosion models has been carried out to determine how their light curves and spectra vary with their mass, metallicity, and explosion energy. The presupernova models are taken from a recent survey of massive stellar evolution at solar metallicity supplemented by new calculations at subsolar metallicity. Explosions are simulated by the motion of a piston near the edge of the iron core and the resulting light curves and spectra are calculated using full multi-wavelength radiation transport. Formulae are developed that describe approximately how the model observabl","authors_text":"Daniel Kasen, S.E. Woosley","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-08T20:06:37Z","title":"Type II Supernovae: Model Light Curves and Standard Candle Relationships"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1590","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":"sha256:092632dc89296b3280104f3e9b0c49e58c1ff0145b9b9e6d6c136950d8ac0d22","target":"record","created_at":"2026-05-18T02:11:25Z","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":"8f6675e0be17ba535e14a078c3a5c1fb088ebcc65ebc469dc43f574f1dba7b2f","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-08T20:06:37Z","title_canon_sha256":"df0ce828829e5e144fc9942a156061cb3060b2128a50bb66ef76373e9882a8f4"},"schema_version":"1.0","source":{"id":"0910.1590","kind":"arxiv","version":1}},"canonical_sha256":"0d2aef2fddc73f287c0138e969ef8c2c22590cf4b21526fa2e43845c30f91ce2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d2aef2fddc73f287c0138e969ef8c2c22590cf4b21526fa2e43845c30f91ce2","first_computed_at":"2026-05-18T02:11:25.397618Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:25.397618Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6n7UuvXP73iC7SvFryob/n2G1GQNF5XUIhX627odEn4BXziUMdoRe/5XPFkInQ44iABDpndw1ATw6XN9hwiYBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:25.398199Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.1590","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:092632dc89296b3280104f3e9b0c49e58c1ff0145b9b9e6d6c136950d8ac0d22","sha256:c0ca10b716eed6e735730f60c5a0b32afa9e199aa9016ea63675b11d512195c1"],"state_sha256":"83d1cb970eb2b476a57b080bd98718667232c9f11e7aac5df9081052373efe8b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3wLut2kC2hQxemMIEPGZsz0cnbzS5vlVgmiLbLlb9m+n/Wyik5QT7LwmZIS9lU3y5dXvoK8nDPS7AuF2aY1DDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T20:12:30.156995Z","bundle_sha256":"9b44d663ddddd181f249e771f7b8d1a5af8d4f8504f95d685218d88d1779fc51"}}