{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:4FUHE7TWQLTHHAZL6WZKECAY3Q","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":"2d2f8471a7f579a040ddfb39be25ffd0e001b7159b9e75402614645419160f80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-21T12:19:53Z","title_canon_sha256":"b9d83772d4bea9d058bf3ceca4405bbede6378c21017001dfce3aa1999f36adf"},"schema_version":"1.0","source":{"id":"1212.5412","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.5412","created_at":"2026-05-18T03:37:54Z"},{"alias_kind":"arxiv_version","alias_value":"1212.5412v1","created_at":"2026-05-18T03:37:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.5412","created_at":"2026-05-18T03:37:54Z"},{"alias_kind":"pith_short_12","alias_value":"4FUHE7TWQLTH","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4FUHE7TWQLTHHAZL","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4FUHE7TW","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:b3ad9e555304c5e85bcc2d90f4d5981715900488dd4a0c38677dcac4897a3565","target":"graph","created_at":"2026-05-18T03:37:54Z","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":"In this work, we present the first results of an ongoing survey to search for planetary nebulae (PNe) around hot subdwarf stars (sdOs). Deep images and intermediate-resolution long-slit spectra of RWT 152, the only confirmed PN+sdO system in the northern hemisphere, as well as preliminary results for other sdO+PN candidate are presented.","authors_text":"2), (2) Consejo Superior de Investigaciones Cient\\'ificas, (3) Instituto de Astrof\\'isica de Andaluc\\'ia - CSIC, (4) Departamento de Ciencias de la Navegaci\\'on y de la Tierra, A. Aller (1), A Coru\\~na, A. Ulla (1), C. Rodr\\'iguez-L\\'opez (3) ((1) Departamento de F\\'isica Aplicada, E. P\\'erez (1), Granada, L.F. Miranda (1, Madrid, M. Manteiga (4), R. Oreiro (3), Spain, Spain), Universidade da Coru\\~na, Universidade de Vigo, Vigo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-21T12:19:53Z","title":"Rule or exception? Planetary nebulae around hot subdwarf stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.5412","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":"sha256:982439a572b00e92652e8bb680ebc839555044aae0eca6a494e4ab4aaed74ee2","target":"record","created_at":"2026-05-18T03:37:54Z","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":"2d2f8471a7f579a040ddfb39be25ffd0e001b7159b9e75402614645419160f80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-21T12:19:53Z","title_canon_sha256":"b9d83772d4bea9d058bf3ceca4405bbede6378c21017001dfce3aa1999f36adf"},"schema_version":"1.0","source":{"id":"1212.5412","kind":"arxiv","version":1}},"canonical_sha256":"e168727e7682e673832bf5b2a20818dc0cd9f35816fa98e0398b0aff09522519","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e168727e7682e673832bf5b2a20818dc0cd9f35816fa98e0398b0aff09522519","first_computed_at":"2026-05-18T03:37:54.554236Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:37:54.554236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"844i8/evIAGpIkpm6U0caQcyEN6zcRBqlKkS+dJwESP/1rK+YX8T72jviEd8gx8/e52rqKEBMRH7r2xhMNluCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:37:54.555187Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.5412","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:982439a572b00e92652e8bb680ebc839555044aae0eca6a494e4ab4aaed74ee2","sha256:b3ad9e555304c5e85bcc2d90f4d5981715900488dd4a0c38677dcac4897a3565"],"state_sha256":"2738cd71e22de895be8a0521cd0786c15032e01a7dfb29a808867db31775873f"}