{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FPSO23GCSBT63B6MSC2TONIWTK","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":"360c210748758811bce1d6cd02a18dc21baa555502cbb6e721fa7450cc5bd63b","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-30T07:59:33Z","title_canon_sha256":"88105f5f7dc45d113712ac3aef50efbf618d61a237d6f37d11bbf09bbe916992"},"schema_version":"1.0","source":{"id":"1705.00283","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00283","created_at":"2026-05-18T00:45:20Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00283v1","created_at":"2026-05-18T00:45:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00283","created_at":"2026-05-18T00:45:20Z"},{"alias_kind":"pith_short_12","alias_value":"FPSO23GCSBT6","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FPSO23GCSBT63B6M","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FPSO23GC","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:f4095a5a9a123a8f8d8ccd754d8f4d097c35a81a50935dd72a5285b82e70080b","target":"graph","created_at":"2026-05-18T00:45:20Z","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":"Planetary nebulae are traditionally considered to represent the final evolutionary stage of all intermediate-mass stars ($\\sim$0.7-8Msol). Recent evidence seems to contradict this picture. In particular, since the launch of the Hubble Space Telescope it has become clear that planetary nebulae display a wide range of striking morphologies which cannot be understood in a single star scenario, instead pointing towards a binary evolution in a majority of systems. Here, we summarise our current understanding of the importance of binarity in the formation and shaping of planetary nebulae, as well as","authors_text":"David Jones, Henri M.J. Boffin","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-30T07:59:33Z","title":"Binary stars as the key to understanding planetary nebulae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00283","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":"sha256:12a26bb4930b10c1340d76f14d89e70ad9abf71c83024e529d83a0f19c747ab8","target":"record","created_at":"2026-05-18T00:45:20Z","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":"360c210748758811bce1d6cd02a18dc21baa555502cbb6e721fa7450cc5bd63b","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-04-30T07:59:33Z","title_canon_sha256":"88105f5f7dc45d113712ac3aef50efbf618d61a237d6f37d11bbf09bbe916992"},"schema_version":"1.0","source":{"id":"1705.00283","kind":"arxiv","version":1}},"canonical_sha256":"2be4ed6cc29067ed87cc90b53735169aa7c140c63211d99a190653abb18d37fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2be4ed6cc29067ed87cc90b53735169aa7c140c63211d99a190653abb18d37fe","first_computed_at":"2026-05-18T00:45:20.883867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:20.883867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HCOCT9ECyCCdEUAocBPlrcFkcI9+xp8d3xIzzBcwisX0y3XeZejThqPt/IYzsLQ+A6PZFw94fhBOLfaoqtp6DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:20.884465Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.00283","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12a26bb4930b10c1340d76f14d89e70ad9abf71c83024e529d83a0f19c747ab8","sha256:f4095a5a9a123a8f8d8ccd754d8f4d097c35a81a50935dd72a5285b82e70080b"],"state_sha256":"b2d9e9f92a7284405305f9c3124cf8f66e19938233f2a5b52a69f82f6204d687"}