{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:MH67QDJOWNC7HB2ZDO5EM7F3XP","short_pith_number":"pith:MH67QDJO","schema_version":"1.0","canonical_sha256":"61fdf80d2eb345f387591bba467cbbbbc594c3a42bab48eb73b9576971cad44d","source":{"kind":"arxiv","id":"1203.1388","version":1},"attestation_state":"computed","paper":{"title":"Are planetary nebulae derived from multiple evolutionary scenarios?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2, 2), (2) Macquarie University Research Centre in Astronomy, 3) ((1) Department of Physics, (3) Australian Astronomical Observatory), Astronomy, Astrophotonics, Astrophysics, D. J. Frew (1, Macquarie University, Q. A. Parker (1","submitted_at":"2012-03-07T06:37:08Z","abstract_excerpt":"Our understanding of planetary nebulae has been significantly enhanced as a result of several recent large surveys (Parker et al., these proceedings). These new discoveries suggest that the `PN phenomenon' is in fact more heterogeneous than previously envisaged. Even after the careful elimination of mimics from Galactic PN catalogues, there remains a surprising diversity in the population of PNe and especially their central stars. Indeed, several evolutionary scenarios are implicated in the formation of objects presently catalogued as PNe. We provide a summary of these evolutionary pathways an"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1203.1388","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-07T06:37:08Z","cross_cats_sorted":[],"title_canon_sha256":"37fc7cdee335aac50794644b0263d73c022f420c5aa04a5e42489804cd12f920","abstract_canon_sha256":"c288db45063973e03cf577f579d0ba370c4a02ff4dbc73e35374669e14a97d99"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:13.894149Z","signature_b64":"gRV0E69JhN7erLw1hxhRXF6ecbZLnLQRSLzrmg4kyFDHvNU71YLEDMDnHhRYn3rbUeB85WGOf0PWR7aQFzHyCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61fdf80d2eb345f387591bba467cbbbbc594c3a42bab48eb73b9576971cad44d","last_reissued_at":"2026-05-18T01:58:13.893643Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:13.893643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Are planetary nebulae derived from multiple evolutionary scenarios?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2, 2), (2) Macquarie University Research Centre in Astronomy, 3) ((1) Department of Physics, (3) Australian Astronomical Observatory), Astronomy, Astrophotonics, Astrophysics, D. J. Frew (1, Macquarie University, Q. A. Parker (1","submitted_at":"2012-03-07T06:37:08Z","abstract_excerpt":"Our understanding of planetary nebulae has been significantly enhanced as a result of several recent large surveys (Parker et al., these proceedings). These new discoveries suggest that the `PN phenomenon' is in fact more heterogeneous than previously envisaged. Even after the careful elimination of mimics from Galactic PN catalogues, there remains a surprising diversity in the population of PNe and especially their central stars. Indeed, several evolutionary scenarios are implicated in the formation of objects presently catalogued as PNe. We provide a summary of these evolutionary pathways an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1388","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1203.1388","created_at":"2026-05-18T01:58:13.893732+00:00"},{"alias_kind":"arxiv_version","alias_value":"1203.1388v1","created_at":"2026-05-18T01:58:13.893732+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1388","created_at":"2026-05-18T01:58:13.893732+00:00"},{"alias_kind":"pith_short_12","alias_value":"MH67QDJOWNC7","created_at":"2026-05-18T12:27:14.488303+00:00"},{"alias_kind":"pith_short_16","alias_value":"MH67QDJOWNC7HB2Z","created_at":"2026-05-18T12:27:14.488303+00:00"},{"alias_kind":"pith_short_8","alias_value":"MH67QDJO","created_at":"2026-05-18T12:27:14.488303+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP","json":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP.json","graph_json":"https://pith.science/api/pith-number/MH67QDJOWNC7HB2ZDO5EM7F3XP/graph.json","events_json":"https://pith.science/api/pith-number/MH67QDJOWNC7HB2ZDO5EM7F3XP/events.json","paper":"https://pith.science/paper/MH67QDJO"},"agent_actions":{"view_html":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP","download_json":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP.json","view_paper":"https://pith.science/paper/MH67QDJO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1203.1388&json=true","fetch_graph":"https://pith.science/api/pith-number/MH67QDJOWNC7HB2ZDO5EM7F3XP/graph.json","fetch_events":"https://pith.science/api/pith-number/MH67QDJOWNC7HB2ZDO5EM7F3XP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP/action/storage_attestation","attest_author":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP/action/author_attestation","sign_citation":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP/action/citation_signature","submit_replication":"https://pith.science/pith/MH67QDJOWNC7HB2ZDO5EM7F3XP/action/replication_record"}},"created_at":"2026-05-18T01:58:13.893732+00:00","updated_at":"2026-05-18T01:58:13.893732+00:00"}