{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:64CIR23TVPE4KF4KLKW32EEX54","short_pith_number":"pith:64CIR23T","canonical_record":{"source":{"id":"1807.06340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2018-07-17T11:00:28Z","cross_cats_sorted":[],"title_canon_sha256":"ca45aadaa3aa73293e8347103f6252c2d84478b6d34b4c05c7968059277fe556","abstract_canon_sha256":"05d38aac73e360f60c70ea7a591b798df4b984cce4e1034fd97fd482bf9e21cf"},"schema_version":"1.0"},"canonical_sha256":"f70488eb73abc9c5178a5aadbd1097ef0037f24b01a20a7ceac6174d7f212048","source":{"kind":"arxiv","id":"1807.06340","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.06340","created_at":"2026-05-18T00:10:33Z"},{"alias_kind":"arxiv_version","alias_value":"1807.06340v1","created_at":"2026-05-18T00:10:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.06340","created_at":"2026-05-18T00:10:33Z"},{"alias_kind":"pith_short_12","alias_value":"64CIR23TVPE4","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"64CIR23TVPE4KF4K","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"64CIR23T","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:64CIR23TVPE4KF4KLKW32EEX54","target":"record","payload":{"canonical_record":{"source":{"id":"1807.06340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2018-07-17T11:00:28Z","cross_cats_sorted":[],"title_canon_sha256":"ca45aadaa3aa73293e8347103f6252c2d84478b6d34b4c05c7968059277fe556","abstract_canon_sha256":"05d38aac73e360f60c70ea7a591b798df4b984cce4e1034fd97fd482bf9e21cf"},"schema_version":"1.0"},"canonical_sha256":"f70488eb73abc9c5178a5aadbd1097ef0037f24b01a20a7ceac6174d7f212048","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:33.341696Z","signature_b64":"uZn/+819REJszEa875kciFOSKXCmPV1pw1xFnIc+QMd/CNYl237ByQUeEDBCKBnPqyIvm9AnIHqKoYXHFeAfAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f70488eb73abc9c5178a5aadbd1097ef0037f24b01a20a7ceac6174d7f212048","last_reissued_at":"2026-05-18T00:10:33.341059Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:33.341059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.06340","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":"2026-05-18T00:10:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QdwvM+4ouiR6OExCXlqWlyjuoJ65Zr3dovoGA+boEpbCapfN2zXdzozgst9wmAPDuV811An3D43Mn6xZytItAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:02:08.154790Z"},"content_sha256":"96f77687295c9e590acb1a457235b025271ef7e0b2e0e4e41da89593cd9f23c4","schema_version":"1.0","event_id":"sha256:96f77687295c9e590acb1a457235b025271ef7e0b2e0e4e41da89593cd9f23c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:64CIR23TVPE4KF4KLKW32EEX54","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Chaplygin sleigh with friction moving due to periodic oscillations of an internal mass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nlin.CD","authors_text":"Alexey V. Borisov, Ivan A. Bizyaev, Sergey P. Kuznetsov","submitted_at":"2018-07-17T11:00:28Z","abstract_excerpt":"For a Chaplygin sleigh moving in the presence of weak friction, we present and investigate two mechanisms of arising acceleration due to oscillations of an internal mass. In certain parameter regions, the mechanism induced by small oscillations determines acceleration which is on average one-directional. The role of friction is that the velocity reached in the process of the acceleration is stabilized at a certain level. The second mechanism is due to the effect of parametric excitation of oscillations, when the internal moving particle is comparable in mass with the main platform, and, as occ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.06340","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":"2026-05-18T00:10:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eg0X0zRiV8eTG62O7QQZEKmhLtf6z8IWbqTBAwi3YJfJk6OBdlW3qckb/eYBhLvcPaUwvgZmdPOTPcUYooL4AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:02:08.155378Z"},"content_sha256":"957d422834d3334e33f795b1a04be55a986fb71957e916ad4a9ee204ee4de8dc","schema_version":"1.0","event_id":"sha256:957d422834d3334e33f795b1a04be55a986fb71957e916ad4a9ee204ee4de8dc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/64CIR23TVPE4KF4KLKW32EEX54/bundle.json","state_url":"https://pith.science/pith/64CIR23TVPE4KF4KLKW32EEX54/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/64CIR23TVPE4KF4KLKW32EEX54/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":"2026-06-03T19:02:08Z","links":{"resolver":"https://pith.science/pith/64CIR23TVPE4KF4KLKW32EEX54","bundle":"https://pith.science/pith/64CIR23TVPE4KF4KLKW32EEX54/bundle.json","state":"https://pith.science/pith/64CIR23TVPE4KF4KLKW32EEX54/state.json","well_known_bundle":"https://pith.science/.well-known/pith/64CIR23TVPE4KF4KLKW32EEX54/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:64CIR23TVPE4KF4KLKW32EEX54","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":"05d38aac73e360f60c70ea7a591b798df4b984cce4e1034fd97fd482bf9e21cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2018-07-17T11:00:28Z","title_canon_sha256":"ca45aadaa3aa73293e8347103f6252c2d84478b6d34b4c05c7968059277fe556"},"schema_version":"1.0","source":{"id":"1807.06340","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.06340","created_at":"2026-05-18T00:10:33Z"},{"alias_kind":"arxiv_version","alias_value":"1807.06340v1","created_at":"2026-05-18T00:10:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.06340","created_at":"2026-05-18T00:10:33Z"},{"alias_kind":"pith_short_12","alias_value":"64CIR23TVPE4","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"64CIR23TVPE4KF4K","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"64CIR23T","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:957d422834d3334e33f795b1a04be55a986fb71957e916ad4a9ee204ee4de8dc","target":"graph","created_at":"2026-05-18T00:10:33Z","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":"For a Chaplygin sleigh moving in the presence of weak friction, we present and investigate two mechanisms of arising acceleration due to oscillations of an internal mass. In certain parameter regions, the mechanism induced by small oscillations determines acceleration which is on average one-directional. The role of friction is that the velocity reached in the process of the acceleration is stabilized at a certain level. The second mechanism is due to the effect of parametric excitation of oscillations, when the internal moving particle is comparable in mass with the main platform, and, as occ","authors_text":"Alexey V. Borisov, Ivan A. Bizyaev, Sergey P. Kuznetsov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2018-07-17T11:00:28Z","title":"The Chaplygin sleigh with friction moving due to periodic oscillations of an internal mass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.06340","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":"sha256:96f77687295c9e590acb1a457235b025271ef7e0b2e0e4e41da89593cd9f23c4","target":"record","created_at":"2026-05-18T00:10:33Z","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":"05d38aac73e360f60c70ea7a591b798df4b984cce4e1034fd97fd482bf9e21cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2018-07-17T11:00:28Z","title_canon_sha256":"ca45aadaa3aa73293e8347103f6252c2d84478b6d34b4c05c7968059277fe556"},"schema_version":"1.0","source":{"id":"1807.06340","kind":"arxiv","version":1}},"canonical_sha256":"f70488eb73abc9c5178a5aadbd1097ef0037f24b01a20a7ceac6174d7f212048","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f70488eb73abc9c5178a5aadbd1097ef0037f24b01a20a7ceac6174d7f212048","first_computed_at":"2026-05-18T00:10:33.341059Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:33.341059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uZn/+819REJszEa875kciFOSKXCmPV1pw1xFnIc+QMd/CNYl237ByQUeEDBCKBnPqyIvm9AnIHqKoYXHFeAfAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:33.341696Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.06340","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96f77687295c9e590acb1a457235b025271ef7e0b2e0e4e41da89593cd9f23c4","sha256:957d422834d3334e33f795b1a04be55a986fb71957e916ad4a9ee204ee4de8dc"],"state_sha256":"1b271cd311c544fbe3e77d86ca2e4d424be90d82a1d20cdbf3ce8104ae16a059"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f0x6E25KqifTv193+rQ1H2lp/DvTgVSBmNtwhnyb0MBZ6r86i0zIWroDa9DqXX0kKb2caShJ5Tj5y04ilLD9BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T19:02:08.158079Z","bundle_sha256":"2f760ac5c5349c7f69d7c5a4da6bb5618a8f1bcdd08830a44ca7b5ff082f37ae"}}