{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:K45WYDWCE6XLZV2AOW6IKNT4VB","short_pith_number":"pith:K45WYDWC","canonical_record":{"source":{"id":"1803.01743","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-03-05T15:52:42Z","cross_cats_sorted":["physics.bio-ph","physics.flu-dyn"],"title_canon_sha256":"b35c2e581fba7462f4f31eaebbd6ce8cc03bf6626b6ce61d97314b9b4d93e877","abstract_canon_sha256":"9842f25a94025a583a6bd7e44f55718e68e0f13f6bbbf96777582c2012c5f2d9"},"schema_version":"1.0"},"canonical_sha256":"573b6c0ec227aebcd74075bc85367ca8709b3bdc7eaaec297d2b7e78b0bce7fd","source":{"kind":"arxiv","id":"1803.01743","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.01743","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"arxiv_version","alias_value":"1803.01743v2","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.01743","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"pith_short_12","alias_value":"K45WYDWCE6XL","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"pith_short_16","alias_value":"K45WYDWCE6XLZV2A","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"pith_short_8","alias_value":"K45WYDWC","created_at":"2026-07-04T23:52:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:K45WYDWCE6XLZV2AOW6IKNT4VB","target":"record","payload":{"canonical_record":{"source":{"id":"1803.01743","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-03-05T15:52:42Z","cross_cats_sorted":["physics.bio-ph","physics.flu-dyn"],"title_canon_sha256":"b35c2e581fba7462f4f31eaebbd6ce8cc03bf6626b6ce61d97314b9b4d93e877","abstract_canon_sha256":"9842f25a94025a583a6bd7e44f55718e68e0f13f6bbbf96777582c2012c5f2d9"},"schema_version":"1.0"},"canonical_sha256":"573b6c0ec227aebcd74075bc85367ca8709b3bdc7eaaec297d2b7e78b0bce7fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:32.006807Z","signature_b64":"m8IidFyLQ7Hmj4+rtwhUgEPnQJzq51E89Nk2bHEfoOoxbMQvi5qQ/ULRJ38KV+5Moit7p6/jnBYpzGyGxVhbDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"573b6c0ec227aebcd74075bc85367ca8709b3bdc7eaaec297d2b7e78b0bce7fd","last_reissued_at":"2026-07-04T23:52:32.006400Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:32.006400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.01743","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T23:52:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pEYWWwiYe4Bpn1tGyZSTLI5zJTdVHT36oT6sNWqEY3Z64kYi90Zt4QHP1ORJuRZxeNMH415Gg2EP/8LM+vRYAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:51:35.144121Z"},"content_sha256":"91f56c3466a64a2d7d9f15dcba3a67d183b3ac0d798928c5d1b0309bc0e81e69","schema_version":"1.0","event_id":"sha256:91f56c3466a64a2d7d9f15dcba3a67d183b3ac0d798928c5d1b0309bc0e81e69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:K45WYDWCE6XLZV2AOW6IKNT4VB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Oscillatory surface rheotaxis of swimming E. coli bacteria","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph","physics.flu-dyn"],"primary_cat":"cond-mat.soft","authors_text":"Andreas Z\\\"ottl, Anke Lindner, Arnold Mathijssen, Eric Clement, Gaspard Junot, Nuris Figueroa-Morales","submitted_at":"2018-03-05T15:52:42Z","abstract_excerpt":"Bacterial contamination of biological conducts, catheters or water resources is a major threat to public health and can be amplified by the ability of bacteria to swim upstream. The mechanisms of this rheotaxis, the reorientation with respect to flow gradients, often in complex and confined environments, are still poorly understood. Here, we follow individual E. coli bacteria swimming at surfaces under shear flow with two complementary experimental assays, based on 3D Lagrangian tracking and fluorescent flagellar labelling and we develop a theoretical model for their rheotactic motion. Three t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.01743","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1803.01743/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T23:52:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z36PbDvUfmxzBdI9sYC491OeS8WRuuA1i00lqeleWR03DvG+/rsc6Qa26TDeRpTkGQtbouhwopUl5KFIznUVBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:51:35.144553Z"},"content_sha256":"4da72cb13eff69f5261a9ff1d42f7420f66314f809608f98ef430582f7ac8371","schema_version":"1.0","event_id":"sha256:4da72cb13eff69f5261a9ff1d42f7420f66314f809608f98ef430582f7ac8371"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K45WYDWCE6XLZV2AOW6IKNT4VB/bundle.json","state_url":"https://pith.science/pith/K45WYDWCE6XLZV2AOW6IKNT4VB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K45WYDWCE6XLZV2AOW6IKNT4VB/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":"2026-07-07T13:51:35Z","links":{"resolver":"https://pith.science/pith/K45WYDWCE6XLZV2AOW6IKNT4VB","bundle":"https://pith.science/pith/K45WYDWCE6XLZV2AOW6IKNT4VB/bundle.json","state":"https://pith.science/pith/K45WYDWCE6XLZV2AOW6IKNT4VB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K45WYDWCE6XLZV2AOW6IKNT4VB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:K45WYDWCE6XLZV2AOW6IKNT4VB","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":"9842f25a94025a583a6bd7e44f55718e68e0f13f6bbbf96777582c2012c5f2d9","cross_cats_sorted":["physics.bio-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-03-05T15:52:42Z","title_canon_sha256":"b35c2e581fba7462f4f31eaebbd6ce8cc03bf6626b6ce61d97314b9b4d93e877"},"schema_version":"1.0","source":{"id":"1803.01743","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.01743","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"arxiv_version","alias_value":"1803.01743v2","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.01743","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"pith_short_12","alias_value":"K45WYDWCE6XL","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"pith_short_16","alias_value":"K45WYDWCE6XLZV2A","created_at":"2026-07-04T23:52:32Z"},{"alias_kind":"pith_short_8","alias_value":"K45WYDWC","created_at":"2026-07-04T23:52:32Z"}],"graph_snapshots":[{"event_id":"sha256:4da72cb13eff69f5261a9ff1d42f7420f66314f809608f98ef430582f7ac8371","target":"graph","created_at":"2026-07-04T23:52:32Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1803.01743/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Bacterial contamination of biological conducts, catheters or water resources is a major threat to public health and can be amplified by the ability of bacteria to swim upstream. The mechanisms of this rheotaxis, the reorientation with respect to flow gradients, often in complex and confined environments, are still poorly understood. Here, we follow individual E. coli bacteria swimming at surfaces under shear flow with two complementary experimental assays, based on 3D Lagrangian tracking and fluorescent flagellar labelling and we develop a theoretical model for their rheotactic motion. Three t","authors_text":"Andreas Z\\\"ottl, Anke Lindner, Arnold Mathijssen, Eric Clement, Gaspard Junot, Nuris Figueroa-Morales","cross_cats":["physics.bio-ph","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-03-05T15:52:42Z","title":"Oscillatory surface rheotaxis of swimming E. coli bacteria"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.01743","kind":"arxiv","version":2},"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":"sha256:91f56c3466a64a2d7d9f15dcba3a67d183b3ac0d798928c5d1b0309bc0e81e69","target":"record","created_at":"2026-07-04T23:52:32Z","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":"9842f25a94025a583a6bd7e44f55718e68e0f13f6bbbf96777582c2012c5f2d9","cross_cats_sorted":["physics.bio-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-03-05T15:52:42Z","title_canon_sha256":"b35c2e581fba7462f4f31eaebbd6ce8cc03bf6626b6ce61d97314b9b4d93e877"},"schema_version":"1.0","source":{"id":"1803.01743","kind":"arxiv","version":2}},"canonical_sha256":"573b6c0ec227aebcd74075bc85367ca8709b3bdc7eaaec297d2b7e78b0bce7fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"573b6c0ec227aebcd74075bc85367ca8709b3bdc7eaaec297d2b7e78b0bce7fd","first_computed_at":"2026-07-04T23:52:32.006400Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:52:32.006400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m8IidFyLQ7Hmj4+rtwhUgEPnQJzq51E89Nk2bHEfoOoxbMQvi5qQ/ULRJ38KV+5Moit7p6/jnBYpzGyGxVhbDw==","signature_status":"signed_v1","signed_at":"2026-07-04T23:52:32.006807Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.01743","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91f56c3466a64a2d7d9f15dcba3a67d183b3ac0d798928c5d1b0309bc0e81e69","sha256:4da72cb13eff69f5261a9ff1d42f7420f66314f809608f98ef430582f7ac8371"],"state_sha256":"35a7cd803ca995f2c858d476f019eedb2f2f3c6229e13f679e9726a6ad62a953"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0eynUIWa9xNrc5HyCblIRKY6smY7uhO3jnUm8tsIHrDidVbGRsg5vVyqbrESPuZLiZZsqJziMd3p7XyPeb67CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T13:51:35.146429Z","bundle_sha256":"d50d141d5dc4ff8ee6024c7efb299ee48170bc48eae1f4ec106488cd4043a87e"}}