{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:MLIYGIHJ4OXKYSYBD2MCFF7A66","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":"bc82d9e1e5bb63a99b5e97dc20b9dc29288a36b1dd0b77f64e9632026a6f9055","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-03-12T15:23:00Z","title_canon_sha256":"66185fcaaa285ad53e2acf895266c656f589ac81396cbd9b8f5e886388fab6c4"},"schema_version":"1.0","source":{"id":"astro-ph/0103169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0103169","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0103169v1","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0103169","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"pith_short_12","alias_value":"MLIYGIHJ4OXK","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"MLIYGIHJ4OXKYSYB","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"MLIYGIHJ","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:1d327fe7b50e8a47d265800df376c193c4caef393c3b5cb6110a625e74474474","target":"graph","created_at":"2026-05-18T01:00:27Z","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 briefly review the fundamentals of nuclear gamma-ray line astronomy (radioactive astronomy), focusing on its role to decipher the intimate physics of supernovae, either immediatly (via $^{56}Co)$ or after a time delay (via $^{44}Ti$). All kinds of supernovae can be in principle tested through their radioactivities and their associated gamma-ray lines.\n Dedicated to the spectroscopy and imaging of celestial sources in the 15 keV to 10 MeV band, the ESA scientific observatory INTEGRAL will open a golden age of nuclear astrophysics in Europe","authors_text":"Elisabeth Vangioni-Flam (Institut d'Astrophysique de Paris, France), Jacques Paul, Michel Casse, Service d'Astrophysique","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-03-12T15:23:00Z","title":"INTEGRAL and Nuclear Astrophysics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0103169","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":"sha256:9ae081dd8f2ecc6f229abd9e1ec8c971d3c3f745292cc21ba9fcf6355a358de2","target":"record","created_at":"2026-05-18T01:00:27Z","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":"bc82d9e1e5bb63a99b5e97dc20b9dc29288a36b1dd0b77f64e9632026a6f9055","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-03-12T15:23:00Z","title_canon_sha256":"66185fcaaa285ad53e2acf895266c656f589ac81396cbd9b8f5e886388fab6c4"},"schema_version":"1.0","source":{"id":"astro-ph/0103169","kind":"arxiv","version":1}},"canonical_sha256":"62d18320e9e3aeac4b011e982297e0f7a53e9efb8901f253db4f23e2d402c7a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62d18320e9e3aeac4b011e982297e0f7a53e9efb8901f253db4f23e2d402c7a9","first_computed_at":"2026-05-18T01:00:27.558704Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:27.558704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Z9Id5Pfzy93yKmcjzPfPwoYKgjlAQj+wE96uBPSoi6CwYoiqDLKQpETEhYfqH210B9zRCDDadHBRqGgYOJDGDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:27.559214Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0103169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ae081dd8f2ecc6f229abd9e1ec8c971d3c3f745292cc21ba9fcf6355a358de2","sha256:1d327fe7b50e8a47d265800df376c193c4caef393c3b5cb6110a625e74474474"],"state_sha256":"a7282a45e124466d09e27db4aa643a66cc692a7d958c13e995ed9542e477767e"}