{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:EUTCW44766TZ5UT3FRXLEZFUIT","short_pith_number":"pith:EUTCW447","canonical_record":{"source":{"id":"1208.4775","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-23T14:55:09Z","cross_cats_sorted":[],"title_canon_sha256":"1b95df0c94b8503d1d81870351f30c7cbb13ad3f2f7bc94e09b1c3ba46cab156","abstract_canon_sha256":"2ee825a41b42fd359910b4f522efc0d4e62330e7e39f7848059768122ae3e9be"},"schema_version":"1.0"},"canonical_sha256":"25262b739ff7a79ed27b2c6eb264b444c8fde564745c18a1f5acd00bcb5ce9f1","source":{"kind":"arxiv","id":"1208.4775","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.4775","created_at":"2026-05-18T03:48:12Z"},{"alias_kind":"arxiv_version","alias_value":"1208.4775v1","created_at":"2026-05-18T03:48:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4775","created_at":"2026-05-18T03:48:12Z"},{"alias_kind":"pith_short_12","alias_value":"EUTCW44766TZ","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"EUTCW44766TZ5UT3","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"EUTCW447","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:EUTCW44766TZ5UT3FRXLEZFUIT","target":"record","payload":{"canonical_record":{"source":{"id":"1208.4775","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-23T14:55:09Z","cross_cats_sorted":[],"title_canon_sha256":"1b95df0c94b8503d1d81870351f30c7cbb13ad3f2f7bc94e09b1c3ba46cab156","abstract_canon_sha256":"2ee825a41b42fd359910b4f522efc0d4e62330e7e39f7848059768122ae3e9be"},"schema_version":"1.0"},"canonical_sha256":"25262b739ff7a79ed27b2c6eb264b444c8fde564745c18a1f5acd00bcb5ce9f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:48:12.699694Z","signature_b64":"SUKpmeWC0SQD2MdefAjLw1HkghF15GmqCYPbVLagADIRxemJu3d/ECsdeu8FUDf2pguSnFyOSVAdsm8v4xtUCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"25262b739ff7a79ed27b2c6eb264b444c8fde564745c18a1f5acd00bcb5ce9f1","last_reissued_at":"2026-05-18T03:48:12.698995Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:48:12.698995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.4775","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:48:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FTGePceLA88Ol518BLQF+qjh4ReX99DXiNG2vskl3ZafhhJcaXIvapW0gV5w+bG98RsLlVwx6PH7bt4E0Q3TAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:42:53.288552Z"},"content_sha256":"795bc99bdd28a7ca52f22d33a23246805055732d7dbc1a28d11f4c7c45e5fbbf","schema_version":"1.0","event_id":"sha256:795bc99bdd28a7ca52f22d33a23246805055732d7dbc1a28d11f4c7c45e5fbbf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:EUTCW44766TZ5UT3FRXLEZFUIT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vertical structures induced by embedded moonlets in Saturn's rings: the gap region","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Frank Spahn, Holger Hoffmann, Martin Sei{\\ss}","submitted_at":"2012-08-23T14:55:09Z","abstract_excerpt":"We study the vertical extent of propeller structures in Saturn's rings. Our focus lies on the gap region of the propeller and on non-inclined propeller moonlets. In order to describe the vertical structure of propellers we extend the model of Spahn and Sremcevic (2000) to include the vertical direction. We find that the gravitational interaction of ring particles with the non-inclined moonlet does not induce considerable vertical excursions of ring particles, but causes a considerable thermal motion in the ring plane. We expect ring particle collisions to partly convert the lateral induced the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4775","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:48:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NcpHaHaMHGDTaNmxxGJoxyeSEXuswSWfHVA50sVwA6dhLybWP/2vV5vKSODlUc2vLQbGK6ImY4YN+b3n2aC+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:42:53.289248Z"},"content_sha256":"a9d0b335fc6eacb60b0fdb4aca919a4e2d56520441e362bc2079c38cb01628e9","schema_version":"1.0","event_id":"sha256:a9d0b335fc6eacb60b0fdb4aca919a4e2d56520441e362bc2079c38cb01628e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EUTCW44766TZ5UT3FRXLEZFUIT/bundle.json","state_url":"https://pith.science/pith/EUTCW44766TZ5UT3FRXLEZFUIT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EUTCW44766TZ5UT3FRXLEZFUIT/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-31T15:42:53Z","links":{"resolver":"https://pith.science/pith/EUTCW44766TZ5UT3FRXLEZFUIT","bundle":"https://pith.science/pith/EUTCW44766TZ5UT3FRXLEZFUIT/bundle.json","state":"https://pith.science/pith/EUTCW44766TZ5UT3FRXLEZFUIT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EUTCW44766TZ5UT3FRXLEZFUIT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:EUTCW44766TZ5UT3FRXLEZFUIT","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":"2ee825a41b42fd359910b4f522efc0d4e62330e7e39f7848059768122ae3e9be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-23T14:55:09Z","title_canon_sha256":"1b95df0c94b8503d1d81870351f30c7cbb13ad3f2f7bc94e09b1c3ba46cab156"},"schema_version":"1.0","source":{"id":"1208.4775","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.4775","created_at":"2026-05-18T03:48:12Z"},{"alias_kind":"arxiv_version","alias_value":"1208.4775v1","created_at":"2026-05-18T03:48:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4775","created_at":"2026-05-18T03:48:12Z"},{"alias_kind":"pith_short_12","alias_value":"EUTCW44766TZ","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"EUTCW44766TZ5UT3","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"EUTCW447","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:a9d0b335fc6eacb60b0fdb4aca919a4e2d56520441e362bc2079c38cb01628e9","target":"graph","created_at":"2026-05-18T03:48:12Z","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":"We study the vertical extent of propeller structures in Saturn's rings. Our focus lies on the gap region of the propeller and on non-inclined propeller moonlets. In order to describe the vertical structure of propellers we extend the model of Spahn and Sremcevic (2000) to include the vertical direction. We find that the gravitational interaction of ring particles with the non-inclined moonlet does not induce considerable vertical excursions of ring particles, but causes a considerable thermal motion in the ring plane. We expect ring particle collisions to partly convert the lateral induced the","authors_text":"Frank Spahn, Holger Hoffmann, Martin Sei{\\ss}","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-23T14:55:09Z","title":"Vertical structures induced by embedded moonlets in Saturn's rings: the gap region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4775","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":"sha256:795bc99bdd28a7ca52f22d33a23246805055732d7dbc1a28d11f4c7c45e5fbbf","target":"record","created_at":"2026-05-18T03:48:12Z","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":"2ee825a41b42fd359910b4f522efc0d4e62330e7e39f7848059768122ae3e9be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-23T14:55:09Z","title_canon_sha256":"1b95df0c94b8503d1d81870351f30c7cbb13ad3f2f7bc94e09b1c3ba46cab156"},"schema_version":"1.0","source":{"id":"1208.4775","kind":"arxiv","version":1}},"canonical_sha256":"25262b739ff7a79ed27b2c6eb264b444c8fde564745c18a1f5acd00bcb5ce9f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"25262b739ff7a79ed27b2c6eb264b444c8fde564745c18a1f5acd00bcb5ce9f1","first_computed_at":"2026-05-18T03:48:12.698995Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:12.698995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SUKpmeWC0SQD2MdefAjLw1HkghF15GmqCYPbVLagADIRxemJu3d/ECsdeu8FUDf2pguSnFyOSVAdsm8v4xtUCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:12.699694Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.4775","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:795bc99bdd28a7ca52f22d33a23246805055732d7dbc1a28d11f4c7c45e5fbbf","sha256:a9d0b335fc6eacb60b0fdb4aca919a4e2d56520441e362bc2079c38cb01628e9"],"state_sha256":"dd1094eff42d6113ffde7751ae3574a62a68828fc4543bc2702d5f9eb1067ea6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HY3VO4KYBVMp4N0azSSM/5t/a3Ai9HHVS0mmMzJvAgqyBFGLusYMJm7F2xPfWgw1FTB1J0hRaVZRGwnIqtd8Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T15:42:53.293557Z","bundle_sha256":"88789895a730e6d0cf0f1ee440f8264da811cc43936182ef8ad13fa765f14119"}}