{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:26KV3JPJ2LMH4DFDGFE5442USV","short_pith_number":"pith:26KV3JPJ","canonical_record":{"source":{"id":"1904.10855","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-24T14:54:21Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"4971700ee8973015d84ed1cc2944d49ad5f5418592d083fdb12970ccbc04afc0","abstract_canon_sha256":"2ed1393986de14371101958f3a62a8b7e51b37c6e3374745b081265de72e0962"},"schema_version":"1.0"},"canonical_sha256":"d7955da5e9d2d87e0ca33149de7354956689d7dab0d6461bf9858746e824de87","source":{"kind":"arxiv","id":"1904.10855","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.10855","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"arxiv_version","alias_value":"1904.10855v1","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.10855","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"pith_short_12","alias_value":"26KV3JPJ2LMH","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"26KV3JPJ2LMH4DFD","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"26KV3JPJ","created_at":"2026-05-18T12:33:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:26KV3JPJ2LMH4DFDGFE5442USV","target":"record","payload":{"canonical_record":{"source":{"id":"1904.10855","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-24T14:54:21Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"4971700ee8973015d84ed1cc2944d49ad5f5418592d083fdb12970ccbc04afc0","abstract_canon_sha256":"2ed1393986de14371101958f3a62a8b7e51b37c6e3374745b081265de72e0962"},"schema_version":"1.0"},"canonical_sha256":"d7955da5e9d2d87e0ca33149de7354956689d7dab0d6461bf9858746e824de87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:18.853238Z","signature_b64":"Gj3HB8jd566Y+Lnzp0/C6b8QcVscR9Xcu3dwOIs72k1fgfFLZyDplcN/XeNgR/F0kVkOUO5BYnfC2C7IvML2Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7955da5e9d2d87e0ca33149de7354956689d7dab0d6461bf9858746e824de87","last_reissued_at":"2026-05-17T23:44:18.852603Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:18.852603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.10855","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":"2026-05-17T23:44:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CKqcRN7pG5aS0zmeKrgtE8UB5d3Dxr+47xT0ioqzixbcMzjoljfrYiHph8pHjb3qQoIgpjs1FjFtPD2bK61pDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:34:26.047911Z"},"content_sha256":"864994d7baa856687c68332277a9a9a38dbfe7445dd504ca6e9339bbd224d088","schema_version":"1.0","event_id":"sha256:864994d7baa856687c68332277a9a9a38dbfe7445dd504ca6e9339bbd224d088"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:26KV3JPJ2LMH4DFDGFE5442USV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Active particles powered by Quincke rotation in a bulk fluid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"cond-mat.soft","authors_text":"Debasish Das, Eric Lauga","submitted_at":"2019-04-24T14:54:21Z","abstract_excerpt":"Dielectric particles suspended in a weakly conducting fluid are known to spontaneously start rotating under the action of a sufficiently strong uniform DC electric field due to the Quincke rotation instability. This rotation can be converted into translation when the particles are placed near a surface providing useful model systems for active matter. Using a combination of numerical simulations and theoretical models, we demonstrate that it is possible to convert this spontaneous Quincke rotation into spontaneous translation in a plane perpendicular to the electric field in the absence of sur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.10855","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":"2026-05-17T23:44:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mnJCRAy3O1F4VKUwze2dJFbot++ECbsxLrtUJ5p1myCtg7fUAbgvFoiLZa8jBURhKHKzZQ3MoOUycoiO8jaDAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:34:26.048667Z"},"content_sha256":"476a0c335a2f3253c97445d211f41dabd605a2a0082778ea278bf46651174517","schema_version":"1.0","event_id":"sha256:476a0c335a2f3253c97445d211f41dabd605a2a0082778ea278bf46651174517"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/26KV3JPJ2LMH4DFDGFE5442USV/bundle.json","state_url":"https://pith.science/pith/26KV3JPJ2LMH4DFDGFE5442USV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/26KV3JPJ2LMH4DFDGFE5442USV/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":"2026-06-10T23:34:26Z","links":{"resolver":"https://pith.science/pith/26KV3JPJ2LMH4DFDGFE5442USV","bundle":"https://pith.science/pith/26KV3JPJ2LMH4DFDGFE5442USV/bundle.json","state":"https://pith.science/pith/26KV3JPJ2LMH4DFDGFE5442USV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/26KV3JPJ2LMH4DFDGFE5442USV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:26KV3JPJ2LMH4DFDGFE5442USV","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":"2ed1393986de14371101958f3a62a8b7e51b37c6e3374745b081265de72e0962","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-24T14:54:21Z","title_canon_sha256":"4971700ee8973015d84ed1cc2944d49ad5f5418592d083fdb12970ccbc04afc0"},"schema_version":"1.0","source":{"id":"1904.10855","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.10855","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"arxiv_version","alias_value":"1904.10855v1","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.10855","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"pith_short_12","alias_value":"26KV3JPJ2LMH","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"26KV3JPJ2LMH4DFD","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"26KV3JPJ","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:476a0c335a2f3253c97445d211f41dabd605a2a0082778ea278bf46651174517","target":"graph","created_at":"2026-05-17T23:44:18Z","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":"Dielectric particles suspended in a weakly conducting fluid are known to spontaneously start rotating under the action of a sufficiently strong uniform DC electric field due to the Quincke rotation instability. This rotation can be converted into translation when the particles are placed near a surface providing useful model systems for active matter. Using a combination of numerical simulations and theoretical models, we demonstrate that it is possible to convert this spontaneous Quincke rotation into spontaneous translation in a plane perpendicular to the electric field in the absence of sur","authors_text":"Debasish Das, Eric Lauga","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-24T14:54:21Z","title":"Active particles powered by Quincke rotation in a bulk fluid"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.10855","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":"sha256:864994d7baa856687c68332277a9a9a38dbfe7445dd504ca6e9339bbd224d088","target":"record","created_at":"2026-05-17T23:44:18Z","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":"2ed1393986de14371101958f3a62a8b7e51b37c6e3374745b081265de72e0962","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-24T14:54:21Z","title_canon_sha256":"4971700ee8973015d84ed1cc2944d49ad5f5418592d083fdb12970ccbc04afc0"},"schema_version":"1.0","source":{"id":"1904.10855","kind":"arxiv","version":1}},"canonical_sha256":"d7955da5e9d2d87e0ca33149de7354956689d7dab0d6461bf9858746e824de87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7955da5e9d2d87e0ca33149de7354956689d7dab0d6461bf9858746e824de87","first_computed_at":"2026-05-17T23:44:18.852603Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:18.852603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gj3HB8jd566Y+Lnzp0/C6b8QcVscR9Xcu3dwOIs72k1fgfFLZyDplcN/XeNgR/F0kVkOUO5BYnfC2C7IvML2Bw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:18.853238Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.10855","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:864994d7baa856687c68332277a9a9a38dbfe7445dd504ca6e9339bbd224d088","sha256:476a0c335a2f3253c97445d211f41dabd605a2a0082778ea278bf46651174517"],"state_sha256":"25e7c3d99da26ea5e4524b1fa244bf5e1776f5f2f4665c085676419234dfb4f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QIlaC6kUPmN6SQXIHDVBwqyItFItMuFW7b7vf2cQdurj/rcLRzkStCM6XYe9Ca5IIC1QGncQXatKeTeJBlrwBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T23:34:26.052749Z","bundle_sha256":"f643aa8cdd60d404d74410760319d9a8655da8214294b34dc96a751a38da4f39"}}