{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:I3I2DGCHWYP5YBR53Q26ESYIJS","short_pith_number":"pith:I3I2DGCH","schema_version":"1.0","canonical_sha256":"46d1a19847b61fdc063ddc35e24b084ca23305199dbb4232b1001a59c0693112","source":{"kind":"arxiv","id":"0912.4830","version":1},"attestation_state":"computed","paper":{"title":"Theory of the rotation of Janus and Epimetheus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"B. Noyelles","submitted_at":"2009-12-24T11:06:23Z","abstract_excerpt":"The Saturnian coorbital satellites Janus and Epimetheus present a unique dynamical configuration in the Solar System, because of high-amplitude horseshoe orbits, due to a mass ratio of order unity. As a consequence, they swap their orbits every 4 years, while their orbital periods is about 0.695 days. Recently, Tiscareno et al.(2009) got observational informations on the shapes and the rotational states of these satellites. In particular, they detected an offset in the expected equilibrium position of Janus, and a large libration of Epimetheus. We here propose to give a 3-dimensional theory of"},"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":"0912.4830","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-12-24T11:06:23Z","cross_cats_sorted":[],"title_canon_sha256":"fca8cec18d22657e99ca4514207841a83f611eddab18f927ad28014028fb1cb2","abstract_canon_sha256":"5172bfb0a551da268aad7bf2199c04c58a5946e431199e0ba83ed3bffcc11bc8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:13.874841Z","signature_b64":"DcV1CJnArl0aQmyaGt3PkcenYNgvXwhbAPB12MmwjQEeXg7j6+zDQOXyFsgkqGF5jdQfGAgy8aBDdaXQd+PqCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"46d1a19847b61fdc063ddc35e24b084ca23305199dbb4232b1001a59c0693112","last_reissued_at":"2026-05-18T02:10:13.874097Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:13.874097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Theory of the rotation of Janus and Epimetheus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"B. Noyelles","submitted_at":"2009-12-24T11:06:23Z","abstract_excerpt":"The Saturnian coorbital satellites Janus and Epimetheus present a unique dynamical configuration in the Solar System, because of high-amplitude horseshoe orbits, due to a mass ratio of order unity. As a consequence, they swap their orbits every 4 years, while their orbital periods is about 0.695 days. Recently, Tiscareno et al.(2009) got observational informations on the shapes and the rotational states of these satellites. In particular, they detected an offset in the expected equilibrium position of Janus, and a large libration of Epimetheus. We here propose to give a 3-dimensional theory of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.4830","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":"0912.4830","created_at":"2026-05-18T02:10:13.874219+00:00"},{"alias_kind":"arxiv_version","alias_value":"0912.4830v1","created_at":"2026-05-18T02:10:13.874219+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.4830","created_at":"2026-05-18T02:10:13.874219+00:00"},{"alias_kind":"pith_short_12","alias_value":"I3I2DGCHWYP5","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_16","alias_value":"I3I2DGCHWYP5YBR5","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_8","alias_value":"I3I2DGCH","created_at":"2026-05-18T12:25:59.703012+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/I3I2DGCHWYP5YBR53Q26ESYIJS","json":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS.json","graph_json":"https://pith.science/api/pith-number/I3I2DGCHWYP5YBR53Q26ESYIJS/graph.json","events_json":"https://pith.science/api/pith-number/I3I2DGCHWYP5YBR53Q26ESYIJS/events.json","paper":"https://pith.science/paper/I3I2DGCH"},"agent_actions":{"view_html":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS","download_json":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS.json","view_paper":"https://pith.science/paper/I3I2DGCH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0912.4830&json=true","fetch_graph":"https://pith.science/api/pith-number/I3I2DGCHWYP5YBR53Q26ESYIJS/graph.json","fetch_events":"https://pith.science/api/pith-number/I3I2DGCHWYP5YBR53Q26ESYIJS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS/action/storage_attestation","attest_author":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS/action/author_attestation","sign_citation":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS/action/citation_signature","submit_replication":"https://pith.science/pith/I3I2DGCHWYP5YBR53Q26ESYIJS/action/replication_record"}},"created_at":"2026-05-18T02:10:13.874219+00:00","updated_at":"2026-05-18T02:10:13.874219+00:00"}