{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ATBEPAFBQJCWAOGL5JAKTAJYJM","short_pith_number":"pith:ATBEPAFB","canonical_record":{"source":{"id":"1806.01090","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-04T13:07:10Z","cross_cats_sorted":[],"title_canon_sha256":"e2f10285866d10e56fa5d5000305f5439e05dafed52108590332290d2f204488","abstract_canon_sha256":"69a46170e6e499ce83ceba662bd983d86918438552376a72a9de898d26a33dea"},"schema_version":"1.0"},"canonical_sha256":"04c24780a182456038cbea40a981384b1653489d85396a4e782d826997bba701","source":{"kind":"arxiv","id":"1806.01090","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01090","created_at":"2026-05-17T23:59:57Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01090v1","created_at":"2026-05-17T23:59:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01090","created_at":"2026-05-17T23:59:57Z"},{"alias_kind":"pith_short_12","alias_value":"ATBEPAFBQJCW","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ATBEPAFBQJCWAOGL","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ATBEPAFB","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ATBEPAFBQJCWAOGL5JAKTAJYJM","target":"record","payload":{"canonical_record":{"source":{"id":"1806.01090","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-04T13:07:10Z","cross_cats_sorted":[],"title_canon_sha256":"e2f10285866d10e56fa5d5000305f5439e05dafed52108590332290d2f204488","abstract_canon_sha256":"69a46170e6e499ce83ceba662bd983d86918438552376a72a9de898d26a33dea"},"schema_version":"1.0"},"canonical_sha256":"04c24780a182456038cbea40a981384b1653489d85396a4e782d826997bba701","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:57.909041Z","signature_b64":"+dqYXRRBmthnpFblr+UKGCR/B7sUiwgOKhW0F7ySVer0eba1gJsuN5fTgs/aKeM53P5hNuLPkjt03I958H/fAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04c24780a182456038cbea40a981384b1653489d85396a4e782d826997bba701","last_reissued_at":"2026-05-17T23:59:57.908431Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:57.908431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.01090","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":"2026-05-17T23:59:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x6wGcktSRJ5l3pariCP0etukydNLtrb/ITQzVemDiqlnn2yYOdZqnujQ6K92gGPjNhmIcmd8gGLCjNUH7xmaCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:58:07.103600Z"},"content_sha256":"3980c8f47212147946980fa1d2c5c10cdf6cf1d093dbc759f4d5a75e58ee8cfc","schema_version":"1.0","event_id":"sha256:3980c8f47212147946980fa1d2c5c10cdf6cf1d093dbc759f4d5a75e58ee8cfc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ATBEPAFBQJCWAOGL5JAKTAJYJM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surface microswimmers, harnessing the interface to self-propel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Galien Grosjean, Maxime Hubert, Nicolas Vandewalle, Salvatore Pillitteri, Ylona Collard","submitted_at":"2018-06-04T13:07:10Z","abstract_excerpt":"In the study of microscopic flows, self-propulsion has been particularly topical in recent years, with the rise of miniature artificial swimmers as a new tool for flow control, low Reynolds number mixing, micromanipulation or even drug delivery. It is possible to take advantage of interfacial physics to propel these micro-robots, as demonstrated by recent experiments using the proximity of an interface, or the interface itself, to generate propulsion at low Reynolds number. This paper discusses how a nearby interface can provide the symmetry breaking necessary for propulsion. An overview of re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01090","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":"2026-05-17T23:59:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GKL7sreTUuIijbyy9mab00oa+MHXB76GO9kf+Gmc/HLLKXZuPwvs4cBa25Udd+FF/M0vx1D6r5ToXMMaKYyRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:58:07.104250Z"},"content_sha256":"31d4b68010a2b2ca453674da8d8ba6ca5b6db27745ad5f1c31b2767c7b137ba7","schema_version":"1.0","event_id":"sha256:31d4b68010a2b2ca453674da8d8ba6ca5b6db27745ad5f1c31b2767c7b137ba7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ATBEPAFBQJCWAOGL5JAKTAJYJM/bundle.json","state_url":"https://pith.science/pith/ATBEPAFBQJCWAOGL5JAKTAJYJM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ATBEPAFBQJCWAOGL5JAKTAJYJM/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":"2026-05-26T13:58:07Z","links":{"resolver":"https://pith.science/pith/ATBEPAFBQJCWAOGL5JAKTAJYJM","bundle":"https://pith.science/pith/ATBEPAFBQJCWAOGL5JAKTAJYJM/bundle.json","state":"https://pith.science/pith/ATBEPAFBQJCWAOGL5JAKTAJYJM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ATBEPAFBQJCWAOGL5JAKTAJYJM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ATBEPAFBQJCWAOGL5JAKTAJYJM","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":"69a46170e6e499ce83ceba662bd983d86918438552376a72a9de898d26a33dea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-04T13:07:10Z","title_canon_sha256":"e2f10285866d10e56fa5d5000305f5439e05dafed52108590332290d2f204488"},"schema_version":"1.0","source":{"id":"1806.01090","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01090","created_at":"2026-05-17T23:59:57Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01090v1","created_at":"2026-05-17T23:59:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01090","created_at":"2026-05-17T23:59:57Z"},{"alias_kind":"pith_short_12","alias_value":"ATBEPAFBQJCW","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ATBEPAFBQJCWAOGL","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ATBEPAFB","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:31d4b68010a2b2ca453674da8d8ba6ca5b6db27745ad5f1c31b2767c7b137ba7","target":"graph","created_at":"2026-05-17T23:59:57Z","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":"In the study of microscopic flows, self-propulsion has been particularly topical in recent years, with the rise of miniature artificial swimmers as a new tool for flow control, low Reynolds number mixing, micromanipulation or even drug delivery. It is possible to take advantage of interfacial physics to propel these micro-robots, as demonstrated by recent experiments using the proximity of an interface, or the interface itself, to generate propulsion at low Reynolds number. This paper discusses how a nearby interface can provide the symmetry breaking necessary for propulsion. An overview of re","authors_text":"Galien Grosjean, Maxime Hubert, Nicolas Vandewalle, Salvatore Pillitteri, Ylona Collard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-04T13:07:10Z","title":"Surface microswimmers, harnessing the interface to self-propel"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01090","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":"sha256:3980c8f47212147946980fa1d2c5c10cdf6cf1d093dbc759f4d5a75e58ee8cfc","target":"record","created_at":"2026-05-17T23:59:57Z","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":"69a46170e6e499ce83ceba662bd983d86918438552376a72a9de898d26a33dea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-04T13:07:10Z","title_canon_sha256":"e2f10285866d10e56fa5d5000305f5439e05dafed52108590332290d2f204488"},"schema_version":"1.0","source":{"id":"1806.01090","kind":"arxiv","version":1}},"canonical_sha256":"04c24780a182456038cbea40a981384b1653489d85396a4e782d826997bba701","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04c24780a182456038cbea40a981384b1653489d85396a4e782d826997bba701","first_computed_at":"2026-05-17T23:59:57.908431Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:57.908431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+dqYXRRBmthnpFblr+UKGCR/B7sUiwgOKhW0F7ySVer0eba1gJsuN5fTgs/aKeM53P5hNuLPkjt03I958H/fAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:57.909041Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.01090","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3980c8f47212147946980fa1d2c5c10cdf6cf1d093dbc759f4d5a75e58ee8cfc","sha256:31d4b68010a2b2ca453674da8d8ba6ca5b6db27745ad5f1c31b2767c7b137ba7"],"state_sha256":"fcd82b9e67dc03953ae0ce7c5695e55d0a34a27ae0ae98e4be24d9eebb70f4ca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MplBxZCX+o9srnjfS9IDZEwxlaiff7u/FGKuB2LwPJY+xDimdmi2F791uzL1HiUlUun+BBOxyDRY8uDSryCnBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T13:58:07.107777Z","bundle_sha256":"0a4c93d3c4ff259612c2d3ac8c70759cf37359a3ee128a9bac4999a82583deb5"}}