{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:QIA5O2N3NI2BTD46COPENUZGW7","short_pith_number":"pith:QIA5O2N3","schema_version":"1.0","canonical_sha256":"8201d769bb6a34198f9e139e46d326b7d03a1414fbbf13beb64d3cff2870ffca","source":{"kind":"arxiv","id":"1709.01974","version":1},"attestation_state":"computed","paper":{"title":"Dynamical phenomena at the inner edge of the Keeler gap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Joseph A. Burns, Maryame El Moutamid, Matthew M. Hedman, Matthew S. Tiscareno, Philip D. Nicholson, Radwan Tajeddine","submitted_at":"2017-09-06T19:50:53Z","abstract_excerpt":"We analyze several thousand Cassini ISS images in order to study the inner edge of the Keeler gap in Saturn's outer A ring. We find strong evidence for an m=32 perturbation with a mean amplitude of radial variation of 4.5 km. Phase analysis yields a pattern speed consistent with the mean motion of Prometheus, indicating that this pattern is generated by the 32:31 Inner Lindblad resonance with Prometheus. In addition, we find evidence of 18-lobed and 20-lobed patterns with amplitudes of ~1.5 km. These patterns, whose rotation rates correspond to resonance locations ~4 km interior to the gap edg"},"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":"1709.01974","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-09-06T19:50:53Z","cross_cats_sorted":[],"title_canon_sha256":"844faf5f6869d5429a3bdf0b0e5daacace52f495871642f85cc8e266fd3ea648","abstract_canon_sha256":"54bce1618d2a6d0d0fa019fcd1af28d1ac67dc2782308ba41de036af29618a08"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:50.667103Z","signature_b64":"+fatt4A+T8WIw8zuk9SNH4sTUQZXkNbpDFGLYhiNF4fsHaIMqH/7Mwa8tRA+zlYVByhbzaBREjqs3lTsUF73Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8201d769bb6a34198f9e139e46d326b7d03a1414fbbf13beb64d3cff2870ffca","last_reissued_at":"2026-05-18T00:35:50.666581Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:50.666581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamical phenomena at the inner edge of the Keeler gap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Joseph A. Burns, Maryame El Moutamid, Matthew M. Hedman, Matthew S. Tiscareno, Philip D. Nicholson, Radwan Tajeddine","submitted_at":"2017-09-06T19:50:53Z","abstract_excerpt":"We analyze several thousand Cassini ISS images in order to study the inner edge of the Keeler gap in Saturn's outer A ring. We find strong evidence for an m=32 perturbation with a mean amplitude of radial variation of 4.5 km. Phase analysis yields a pattern speed consistent with the mean motion of Prometheus, indicating that this pattern is generated by the 32:31 Inner Lindblad resonance with Prometheus. In addition, we find evidence of 18-lobed and 20-lobed patterns with amplitudes of ~1.5 km. These patterns, whose rotation rates correspond to resonance locations ~4 km interior to the gap edg"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01974","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":"1709.01974","created_at":"2026-05-18T00:35:50.666666+00:00"},{"alias_kind":"arxiv_version","alias_value":"1709.01974v1","created_at":"2026-05-18T00:35:50.666666+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01974","created_at":"2026-05-18T00:35:50.666666+00:00"},{"alias_kind":"pith_short_12","alias_value":"QIA5O2N3NI2B","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_16","alias_value":"QIA5O2N3NI2BTD46","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_8","alias_value":"QIA5O2N3","created_at":"2026-05-18T12:31:39.905425+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/QIA5O2N3NI2BTD46COPENUZGW7","json":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7.json","graph_json":"https://pith.science/api/pith-number/QIA5O2N3NI2BTD46COPENUZGW7/graph.json","events_json":"https://pith.science/api/pith-number/QIA5O2N3NI2BTD46COPENUZGW7/events.json","paper":"https://pith.science/paper/QIA5O2N3"},"agent_actions":{"view_html":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7","download_json":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7.json","view_paper":"https://pith.science/paper/QIA5O2N3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1709.01974&json=true","fetch_graph":"https://pith.science/api/pith-number/QIA5O2N3NI2BTD46COPENUZGW7/graph.json","fetch_events":"https://pith.science/api/pith-number/QIA5O2N3NI2BTD46COPENUZGW7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7/action/storage_attestation","attest_author":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7/action/author_attestation","sign_citation":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7/action/citation_signature","submit_replication":"https://pith.science/pith/QIA5O2N3NI2BTD46COPENUZGW7/action/replication_record"}},"created_at":"2026-05-18T00:35:50.666666+00:00","updated_at":"2026-05-18T00:35:50.666666+00:00"}