{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:3QNASLPFJZN46OHRCJZGGAYIUU","short_pith_number":"pith:3QNASLPF","canonical_record":{"source":{"id":"astro-ph/9803229","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-03-19T16:23:26Z","cross_cats_sorted":[],"title_canon_sha256":"c700b0461241c99f9e09aa7ca44f37cd3cb57f651d2544fa44b3d3154241389b","abstract_canon_sha256":"56f2ff6a75753d030f3263d0ab998c1077b549483a941ceb84ec42369ccd229e"},"schema_version":"1.0"},"canonical_sha256":"dc1a092de54e5bcf38f11272630308a501838d7a8879aa43611fcad66e1c26aa","source":{"kind":"arxiv","id":"astro-ph/9803229","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9803229","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9803229v1","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9803229","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"pith_short_12","alias_value":"3QNASLPFJZN4","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"pith_short_16","alias_value":"3QNASLPFJZN46OHR","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"pith_short_8","alias_value":"3QNASLPF","created_at":"2026-07-04T23:57:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:3QNASLPFJZN46OHRCJZGGAYIUU","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9803229","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-03-19T16:23:26Z","cross_cats_sorted":[],"title_canon_sha256":"c700b0461241c99f9e09aa7ca44f37cd3cb57f651d2544fa44b3d3154241389b","abstract_canon_sha256":"56f2ff6a75753d030f3263d0ab998c1077b549483a941ceb84ec42369ccd229e"},"schema_version":"1.0"},"canonical_sha256":"dc1a092de54e5bcf38f11272630308a501838d7a8879aa43611fcad66e1c26aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:57:17.045965Z","signature_b64":"waprGQ28qwpbjKBDUCpFz4HVbCmxAJqPlKioLBp40+9ktqeirRVeeoA3jAKu+xu8Xf1kjcGNKcTlyc3J+pYyBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc1a092de54e5bcf38f11272630308a501838d7a8879aa43611fcad66e1c26aa","last_reissued_at":"2026-07-04T23:57:17.045465Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:57:17.045465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9803229","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":"2026-07-04T23:57:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BZjiHLulySaGjgMmYwSQ9aBH+aIIf+pd8cR1Rn0DLEnVGMGg1rFU1lCAxCQ2O/yH39Hnx8BnJ2a/eGZMhL2sCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:49:41.652357Z"},"content_sha256":"ff5d7745a69ad135d0fab3c65e8d2db6de128c2f67fbfa381c5c66d3713a42ae","schema_version":"1.0","event_id":"sha256:ff5d7745a69ad135d0fab3c65e8d2db6de128c2f67fbfa381c5c66d3713a42ae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:3QNASLPFJZN46OHRCJZGGAYIUU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nebular velocities in type Ia Supernovae and their relationship to light curves","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E. Cappellaro, I.J. Danziger, M. Turatto, P.A. Mazzali, S. Benetti","submitted_at":"1998-03-19T16:23:26Z","abstract_excerpt":"Recently gathered observational data on a sample of Type Ia Supernovae (SNe Ia) reveal a wide distribution of expansion velocities of the Fe cores, measured from the width of the nebular lines. Moreover, the velocity appears to correlate with the luminosity decline rate after maximum light, $\\Delta m_{15}(B)$. Since it has been shown that for SNe Ia $\\Delta m_{15}(B)$ correlates with the absolute magnitude at maximum, this then implies a relation between the expansion velocity of the Fe nebula and the luminosity at maximum. Physically, the maximum luminosity is related to the mass of synthesiz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9803229","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9803229/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T23:57:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PDf43zu2H1/K252gxifqkqETvQx1F+ASe+1Yaif0qqPrSM9dXu6Z5/Zuf1xvGq5WNIicLwP2pDNfZ3oqpknuBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:49:41.653009Z"},"content_sha256":"a4c9e97365c50ea0a7b5a28345a68f34a939b3fe29b6d7585d8725475ad43b8b","schema_version":"1.0","event_id":"sha256:a4c9e97365c50ea0a7b5a28345a68f34a939b3fe29b6d7585d8725475ad43b8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3QNASLPFJZN46OHRCJZGGAYIUU/bundle.json","state_url":"https://pith.science/pith/3QNASLPFJZN46OHRCJZGGAYIUU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3QNASLPFJZN46OHRCJZGGAYIUU/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":"2026-08-05T20:49:41Z","links":{"resolver":"https://pith.science/pith/3QNASLPFJZN46OHRCJZGGAYIUU","bundle":"https://pith.science/pith/3QNASLPFJZN46OHRCJZGGAYIUU/bundle.json","state":"https://pith.science/pith/3QNASLPFJZN46OHRCJZGGAYIUU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3QNASLPFJZN46OHRCJZGGAYIUU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:3QNASLPFJZN46OHRCJZGGAYIUU","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":"56f2ff6a75753d030f3263d0ab998c1077b549483a941ceb84ec42369ccd229e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-03-19T16:23:26Z","title_canon_sha256":"c700b0461241c99f9e09aa7ca44f37cd3cb57f651d2544fa44b3d3154241389b"},"schema_version":"1.0","source":{"id":"astro-ph/9803229","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9803229","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9803229v1","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9803229","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"pith_short_12","alias_value":"3QNASLPFJZN4","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"pith_short_16","alias_value":"3QNASLPFJZN46OHR","created_at":"2026-07-04T23:57:17Z"},{"alias_kind":"pith_short_8","alias_value":"3QNASLPF","created_at":"2026-07-04T23:57:17Z"}],"graph_snapshots":[{"event_id":"sha256:a4c9e97365c50ea0a7b5a28345a68f34a939b3fe29b6d7585d8725475ad43b8b","target":"graph","created_at":"2026-07-04T23:57:17Z","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/astro-ph/9803229/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently gathered observational data on a sample of Type Ia Supernovae (SNe Ia) reveal a wide distribution of expansion velocities of the Fe cores, measured from the width of the nebular lines. Moreover, the velocity appears to correlate with the luminosity decline rate after maximum light, $\\Delta m_{15}(B)$. Since it has been shown that for SNe Ia $\\Delta m_{15}(B)$ correlates with the absolute magnitude at maximum, this then implies a relation between the expansion velocity of the Fe nebula and the luminosity at maximum. Physically, the maximum luminosity is related to the mass of synthesiz","authors_text":"E. Cappellaro, I.J. Danziger, M. Turatto, P.A. Mazzali, S. Benetti","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-03-19T16:23:26Z","title":"Nebular velocities in type Ia Supernovae and their relationship to light curves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9803229","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:ff5d7745a69ad135d0fab3c65e8d2db6de128c2f67fbfa381c5c66d3713a42ae","target":"record","created_at":"2026-07-04T23:57:17Z","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":"56f2ff6a75753d030f3263d0ab998c1077b549483a941ceb84ec42369ccd229e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-03-19T16:23:26Z","title_canon_sha256":"c700b0461241c99f9e09aa7ca44f37cd3cb57f651d2544fa44b3d3154241389b"},"schema_version":"1.0","source":{"id":"astro-ph/9803229","kind":"arxiv","version":1}},"canonical_sha256":"dc1a092de54e5bcf38f11272630308a501838d7a8879aa43611fcad66e1c26aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc1a092de54e5bcf38f11272630308a501838d7a8879aa43611fcad66e1c26aa","first_computed_at":"2026-07-04T23:57:17.045465Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:57:17.045465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"waprGQ28qwpbjKBDUCpFz4HVbCmxAJqPlKioLBp40+9ktqeirRVeeoA3jAKu+xu8Xf1kjcGNKcTlyc3J+pYyBw==","signature_status":"signed_v1","signed_at":"2026-07-04T23:57:17.045965Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9803229","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff5d7745a69ad135d0fab3c65e8d2db6de128c2f67fbfa381c5c66d3713a42ae","sha256:a4c9e97365c50ea0a7b5a28345a68f34a939b3fe29b6d7585d8725475ad43b8b"],"state_sha256":"66e2d71ddabeb802b717d8e6d7f0bfc99e2885ae75f2b372ac0d3f7df6ab6175"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0a5rR4dL0GYhLW9txVSOb6MoiRjGL/uhhc6k4rWOloI+g2F4YogRCkcwqXBtGeefqbVgLYPuRvgyJPYywXALDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T20:49:41.656683Z","bundle_sha256":"85098d71036d4bae251893aba0a7d0dc0fe439e67f3ae15a46c3fb4ae5c0e975"}}