{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TF675Y2H7GTMR2ED3ZUPINVKHT","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":"afb0ada2cfaa3380437704d0b570482b1a6b2fffe141f45d34d333582a62f8af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-27T15:21:07Z","title_canon_sha256":"35a8aec2cd0433fb255e4ee19143a00c8b573a7357a2f98216174543450489c6"},"schema_version":"1.0","source":{"id":"1906.11728","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.11728","created_at":"2026-05-17T23:42:03Z"},{"alias_kind":"arxiv_version","alias_value":"1906.11728v1","created_at":"2026-05-17T23:42:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.11728","created_at":"2026-05-17T23:42:03Z"},{"alias_kind":"pith_short_12","alias_value":"TF675Y2H7GTM","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TF675Y2H7GTMR2ED","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TF675Y2H","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:7e34d4694b41a4dd140bff53bdfd5fc2f7bf0192d2d31e751436e1b06085c6e9","target":"graph","created_at":"2026-05-17T23:42:03Z","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 1984, three telescopes in South America recorded an occultation of a star near Neptune. It was attributed to the existence of a partial ring or ring arc. The existence of ring arcs around Neptune was confirmed during subsequent years via other occultation experiments and by the Voyager 2 spacecraft. The Voyager observations established that the Neptunian arcs are concentrations of particles embedded within Neptune's narrow Adams ring, the outermost of six tenuous rings discovered by Voyager and discussed here. Four ring arcs were identified: the trailing arc Fraternit\\'e, a double-component","authors_text":"Bruno Sicardy, Imke de Pater, Mark R. Showalter, St\\'efan Renner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-27T15:21:07Z","title":"The rings of Neptune"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.11728","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":"sha256:490006eae5e33de57b406c387c86439e41e56bc422883185fe60d101deafd7cc","target":"record","created_at":"2026-05-17T23:42:03Z","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":"afb0ada2cfaa3380437704d0b570482b1a6b2fffe141f45d34d333582a62f8af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-27T15:21:07Z","title_canon_sha256":"35a8aec2cd0433fb255e4ee19143a00c8b573a7357a2f98216174543450489c6"},"schema_version":"1.0","source":{"id":"1906.11728","kind":"arxiv","version":1}},"canonical_sha256":"997dfee347f9a6c8e883de68f436aa3cfec9988f50fc75724e50a39b4f797df7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"997dfee347f9a6c8e883de68f436aa3cfec9988f50fc75724e50a39b4f797df7","first_computed_at":"2026-05-17T23:42:03.980308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:03.980308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OrpkAuh2Oivc5F3rcB9F+Fy8Jlg1AKniycxD7x/a/VSuClpMDwoaDcQyRaJ7TgvsHXV6NnIQPWFLZZoR4S6rAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:03.980978Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.11728","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:490006eae5e33de57b406c387c86439e41e56bc422883185fe60d101deafd7cc","sha256:7e34d4694b41a4dd140bff53bdfd5fc2f7bf0192d2d31e751436e1b06085c6e9"],"state_sha256":"47a97d84ce12c242fc5e6b862f78373c86ca84ed16b8b0da425aa022bb814a66"}