{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:WU4YYPZJIGQYMSOBGYOPLIUNDK","short_pith_number":"pith:WU4YYPZJ","canonical_record":{"source":{"id":"1812.10414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-12-19T09:30:30Z","cross_cats_sorted":["nlin.SI","physics.flu-dyn"],"title_canon_sha256":"f477ed97d3586e03aa13bad1fa80e02387847f4f6e834d5e470deb4e0cc393ab","abstract_canon_sha256":"f2f486d1f9e1c86387afed041d2d09cfb0e4d8269e888edd531c3aab32c772e4"},"schema_version":"1.0"},"canonical_sha256":"b5398c3f2941a18649c1361cf5a28d1aafce75e3c100b39911d93c2c9c20fafa","source":{"kind":"arxiv","id":"1812.10414","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.10414","created_at":"2026-05-17T23:57:24Z"},{"alias_kind":"arxiv_version","alias_value":"1812.10414v1","created_at":"2026-05-17T23:57:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.10414","created_at":"2026-05-17T23:57:24Z"},{"alias_kind":"pith_short_12","alias_value":"WU4YYPZJIGQY","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WU4YYPZJIGQYMSOB","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WU4YYPZJ","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:WU4YYPZJIGQYMSOBGYOPLIUNDK","target":"record","payload":{"canonical_record":{"source":{"id":"1812.10414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-12-19T09:30:30Z","cross_cats_sorted":["nlin.SI","physics.flu-dyn"],"title_canon_sha256":"f477ed97d3586e03aa13bad1fa80e02387847f4f6e834d5e470deb4e0cc393ab","abstract_canon_sha256":"f2f486d1f9e1c86387afed041d2d09cfb0e4d8269e888edd531c3aab32c772e4"},"schema_version":"1.0"},"canonical_sha256":"b5398c3f2941a18649c1361cf5a28d1aafce75e3c100b39911d93c2c9c20fafa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:24.096897Z","signature_b64":"0xnLi9A2gLAaP3ynxEwf0e8NenWjXcda9b+v1sPc4jUmK40n13XAISMKs5e0fZGZ3scT1epT5dxpiNgzGfpvBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b5398c3f2941a18649c1361cf5a28d1aafce75e3c100b39911d93c2c9c20fafa","last_reissued_at":"2026-05-17T23:57:24.095898Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:24.095898Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.10414","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":"2026-05-17T23:57:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fv03ofCNBjPusairrafAcjqTu59iw4Tw5ZqzRkS/nH8OQaVj10o1+QN8FlQRvjL5F+2uoBS0CmPzLpyTJRVYAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:46:14.841776Z"},"content_sha256":"297c0c63d233ce6925269790516d7782a486956f703ee1f2fef219bc9837ef2c","schema_version":"1.0","event_id":"sha256:297c0c63d233ce6925269790516d7782a486956f703ee1f2fef219bc9837ef2c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:WU4YYPZJIGQYMSOBGYOPLIUNDK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A theory of flying/swimming saucers. Exact solutions for rectilinear locomotion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.SI","physics.flu-dyn"],"primary_cat":"cond-mat.soft","authors_text":"Vladimir A. Vladimirov","submitted_at":"2018-12-19T09:30:30Z","abstract_excerpt":"We study self-propulsion (or locomotion) of a robot (or an underwater vehicle) in an inviscid incompressible fluid. The robot's body is rigid, while its locomotion ability is due to an internal actuator, which can perform controlled translational and rotational oscillations. Our attention is focused on two classes of the plane analytic exact solutions, describing rectilinear locomotion. Solutions of the first class describe the \\emph{tumbling locomotion}, while the second class corresponds to the \\emph{zigzag locomotion} without tumbling. We show, that tumbling locomotion is more efficient. Bo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.10414","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":"2026-05-17T23:57:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P1r8xH0eG2vvj/JcGGBr/thFkIF2aVmeoyNfz1yicS36BpkSNBPSHGJgZmAVfmd2A1TEUdP7acFHTdRh0D+OCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:46:14.842423Z"},"content_sha256":"28073faaa2b51b16000a7a90675005d37eeb2b13cdf84197f75f98f4dadb6ac6","schema_version":"1.0","event_id":"sha256:28073faaa2b51b16000a7a90675005d37eeb2b13cdf84197f75f98f4dadb6ac6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WU4YYPZJIGQYMSOBGYOPLIUNDK/bundle.json","state_url":"https://pith.science/pith/WU4YYPZJIGQYMSOBGYOPLIUNDK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WU4YYPZJIGQYMSOBGYOPLIUNDK/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":"2026-05-31T04:46:14Z","links":{"resolver":"https://pith.science/pith/WU4YYPZJIGQYMSOBGYOPLIUNDK","bundle":"https://pith.science/pith/WU4YYPZJIGQYMSOBGYOPLIUNDK/bundle.json","state":"https://pith.science/pith/WU4YYPZJIGQYMSOBGYOPLIUNDK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WU4YYPZJIGQYMSOBGYOPLIUNDK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WU4YYPZJIGQYMSOBGYOPLIUNDK","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":"f2f486d1f9e1c86387afed041d2d09cfb0e4d8269e888edd531c3aab32c772e4","cross_cats_sorted":["nlin.SI","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-12-19T09:30:30Z","title_canon_sha256":"f477ed97d3586e03aa13bad1fa80e02387847f4f6e834d5e470deb4e0cc393ab"},"schema_version":"1.0","source":{"id":"1812.10414","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.10414","created_at":"2026-05-17T23:57:24Z"},{"alias_kind":"arxiv_version","alias_value":"1812.10414v1","created_at":"2026-05-17T23:57:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.10414","created_at":"2026-05-17T23:57:24Z"},{"alias_kind":"pith_short_12","alias_value":"WU4YYPZJIGQY","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WU4YYPZJIGQYMSOB","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WU4YYPZJ","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:28073faaa2b51b16000a7a90675005d37eeb2b13cdf84197f75f98f4dadb6ac6","target":"graph","created_at":"2026-05-17T23:57:24Z","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 self-propulsion (or locomotion) of a robot (or an underwater vehicle) in an inviscid incompressible fluid. The robot's body is rigid, while its locomotion ability is due to an internal actuator, which can perform controlled translational and rotational oscillations. Our attention is focused on two classes of the plane analytic exact solutions, describing rectilinear locomotion. Solutions of the first class describe the \\emph{tumbling locomotion}, while the second class corresponds to the \\emph{zigzag locomotion} without tumbling. We show, that tumbling locomotion is more efficient. Bo","authors_text":"Vladimir A. Vladimirov","cross_cats":["nlin.SI","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-12-19T09:30:30Z","title":"A theory of flying/swimming saucers. Exact solutions for rectilinear locomotion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.10414","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":"sha256:297c0c63d233ce6925269790516d7782a486956f703ee1f2fef219bc9837ef2c","target":"record","created_at":"2026-05-17T23:57:24Z","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":"f2f486d1f9e1c86387afed041d2d09cfb0e4d8269e888edd531c3aab32c772e4","cross_cats_sorted":["nlin.SI","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-12-19T09:30:30Z","title_canon_sha256":"f477ed97d3586e03aa13bad1fa80e02387847f4f6e834d5e470deb4e0cc393ab"},"schema_version":"1.0","source":{"id":"1812.10414","kind":"arxiv","version":1}},"canonical_sha256":"b5398c3f2941a18649c1361cf5a28d1aafce75e3c100b39911d93c2c9c20fafa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b5398c3f2941a18649c1361cf5a28d1aafce75e3c100b39911d93c2c9c20fafa","first_computed_at":"2026-05-17T23:57:24.095898Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:24.095898Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0xnLi9A2gLAaP3ynxEwf0e8NenWjXcda9b+v1sPc4jUmK40n13XAISMKs5e0fZGZ3scT1epT5dxpiNgzGfpvBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:24.096897Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.10414","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:297c0c63d233ce6925269790516d7782a486956f703ee1f2fef219bc9837ef2c","sha256:28073faaa2b51b16000a7a90675005d37eeb2b13cdf84197f75f98f4dadb6ac6"],"state_sha256":"362ab5e1af0de6e9f9b58ba339a52a9d3d7c2d85349026075cb1b759d9207853"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wQ9C0ub3BG/WOd/+FuGrzHMmAohVNhu60FgVY9rd1UyPf3HPZnzqZ1Iif+QTSkWhnGu32C+7AH5OzczHpCaaAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T04:46:14.846091Z","bundle_sha256":"864a1c7ca5764962c46c0efce74ce102198a4e518a4935530fc5cafd87f68b4a"}}