{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:Q2QIFHIINNVBPK3H2LX7DDU764","short_pith_number":"pith:Q2QIFHII","canonical_record":{"source":{"id":"1610.01641","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-10-05T20:47:01Z","cross_cats_sorted":[],"title_canon_sha256":"0e3c29584ea7e91d7704ed26cd5d68e0888da935910b8e4f423895d53a032f52","abstract_canon_sha256":"a699bf7f183305871e3dac2f765c3b5a38b561713b80ecf998fa14912943f018"},"schema_version":"1.0"},"canonical_sha256":"86a0829d086b6a17ab67d2eff18e9ff71b88981e72335a3a30b12b48a9cd82da","source":{"kind":"arxiv","id":"1610.01641","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.01641","created_at":"2026-05-18T01:00:33Z"},{"alias_kind":"arxiv_version","alias_value":"1610.01641v1","created_at":"2026-05-18T01:00:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.01641","created_at":"2026-05-18T01:00:33Z"},{"alias_kind":"pith_short_12","alias_value":"Q2QIFHIINNVB","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q2QIFHIINNVBPK3H","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q2QIFHII","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:Q2QIFHIINNVBPK3H2LX7DDU764","target":"record","payload":{"canonical_record":{"source":{"id":"1610.01641","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-10-05T20:47:01Z","cross_cats_sorted":[],"title_canon_sha256":"0e3c29584ea7e91d7704ed26cd5d68e0888da935910b8e4f423895d53a032f52","abstract_canon_sha256":"a699bf7f183305871e3dac2f765c3b5a38b561713b80ecf998fa14912943f018"},"schema_version":"1.0"},"canonical_sha256":"86a0829d086b6a17ab67d2eff18e9ff71b88981e72335a3a30b12b48a9cd82da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:33.293033Z","signature_b64":"QuhC172BHzglbPt3Hg5oOys0m8MsJWlwdrA2vREO65ntLSvJ/0y8i6ZBP30DSObtx59d9lWjnVWukKh8HFBbDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86a0829d086b6a17ab67d2eff18e9ff71b88981e72335a3a30b12b48a9cd82da","last_reissued_at":"2026-05-18T01:00:33.292556Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:33.292556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.01641","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":"2026-05-18T01:00:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BEgtufY7gX7nLOkWJC+BZ+as+RWxb8pgSH7uEzZudQ7hLmtg8I4vNYcTR/bHbWkyOgeiRGa4eT7MF7YBjXD/Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:55:25.158350Z"},"content_sha256":"5156f87e24b28bd75d3eb26651b369d15e3b6d27660b42f6803ac4753871dc46","schema_version":"1.0","event_id":"sha256:5156f87e24b28bd75d3eb26651b369d15e3b6d27660b42f6803ac4753871dc46"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:Q2QIFHIINNVBPK3H2LX7DDU764","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamics of ellipsoidal tracers in swimming algal suspensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Chao Tang, Ou Yang, Xiang Cheng, Xinliang Xu, Yi Peng, Zhengyang Liu","submitted_at":"2016-10-05T20:47:01Z","abstract_excerpt":"Enhanced diffusion of passive tracers immersed in active fluids is a universal feature of active fluids and has been extensively studied in recent years. Similar to microrheology for equilibrium complex fluids, the unusual enhanced particle dynamics reveal intrinsic properties of active fluids. Nevertheless, previous studies have shown that the translational dynamics of spherical tracers are qualitatively similar, independent of whether active particles are pushers or pullers---the two fundamental classes of active fluids. Is it possible to distinguish pushers from pullers by simply imaging th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.01641","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":"2026-05-18T01:00:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kpe/jxXSJIBND1WMPuzTKqZ9hNGZ3C7OtT0yIII1gUg5YtFV8I1dbEhVbLV4V9Sj326qnfaHjRV/+lSsi0glDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:55:25.158718Z"},"content_sha256":"022012b62af49f69df612b37bcf5b9aad783fc746aeaaeb1488174f5c91de5a4","schema_version":"1.0","event_id":"sha256:022012b62af49f69df612b37bcf5b9aad783fc746aeaaeb1488174f5c91de5a4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q2QIFHIINNVBPK3H2LX7DDU764/bundle.json","state_url":"https://pith.science/pith/Q2QIFHIINNVBPK3H2LX7DDU764/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q2QIFHIINNVBPK3H2LX7DDU764/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":"2026-05-29T21:55:25Z","links":{"resolver":"https://pith.science/pith/Q2QIFHIINNVBPK3H2LX7DDU764","bundle":"https://pith.science/pith/Q2QIFHIINNVBPK3H2LX7DDU764/bundle.json","state":"https://pith.science/pith/Q2QIFHIINNVBPK3H2LX7DDU764/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q2QIFHIINNVBPK3H2LX7DDU764/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:Q2QIFHIINNVBPK3H2LX7DDU764","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":"a699bf7f183305871e3dac2f765c3b5a38b561713b80ecf998fa14912943f018","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-10-05T20:47:01Z","title_canon_sha256":"0e3c29584ea7e91d7704ed26cd5d68e0888da935910b8e4f423895d53a032f52"},"schema_version":"1.0","source":{"id":"1610.01641","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.01641","created_at":"2026-05-18T01:00:33Z"},{"alias_kind":"arxiv_version","alias_value":"1610.01641v1","created_at":"2026-05-18T01:00:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.01641","created_at":"2026-05-18T01:00:33Z"},{"alias_kind":"pith_short_12","alias_value":"Q2QIFHIINNVB","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q2QIFHIINNVBPK3H","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q2QIFHII","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:022012b62af49f69df612b37bcf5b9aad783fc746aeaaeb1488174f5c91de5a4","target":"graph","created_at":"2026-05-18T01:00:33Z","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":"Enhanced diffusion of passive tracers immersed in active fluids is a universal feature of active fluids and has been extensively studied in recent years. Similar to microrheology for equilibrium complex fluids, the unusual enhanced particle dynamics reveal intrinsic properties of active fluids. Nevertheless, previous studies have shown that the translational dynamics of spherical tracers are qualitatively similar, independent of whether active particles are pushers or pullers---the two fundamental classes of active fluids. Is it possible to distinguish pushers from pullers by simply imaging th","authors_text":"Chao Tang, Ou Yang, Xiang Cheng, Xinliang Xu, Yi Peng, Zhengyang Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-10-05T20:47:01Z","title":"Dynamics of ellipsoidal tracers in swimming algal suspensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.01641","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":"sha256:5156f87e24b28bd75d3eb26651b369d15e3b6d27660b42f6803ac4753871dc46","target":"record","created_at":"2026-05-18T01:00:33Z","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":"a699bf7f183305871e3dac2f765c3b5a38b561713b80ecf998fa14912943f018","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-10-05T20:47:01Z","title_canon_sha256":"0e3c29584ea7e91d7704ed26cd5d68e0888da935910b8e4f423895d53a032f52"},"schema_version":"1.0","source":{"id":"1610.01641","kind":"arxiv","version":1}},"canonical_sha256":"86a0829d086b6a17ab67d2eff18e9ff71b88981e72335a3a30b12b48a9cd82da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86a0829d086b6a17ab67d2eff18e9ff71b88981e72335a3a30b12b48a9cd82da","first_computed_at":"2026-05-18T01:00:33.292556Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:33.292556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QuhC172BHzglbPt3Hg5oOys0m8MsJWlwdrA2vREO65ntLSvJ/0y8i6ZBP30DSObtx59d9lWjnVWukKh8HFBbDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:33.293033Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.01641","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5156f87e24b28bd75d3eb26651b369d15e3b6d27660b42f6803ac4753871dc46","sha256:022012b62af49f69df612b37bcf5b9aad783fc746aeaaeb1488174f5c91de5a4"],"state_sha256":"4f71d45d766a425ab279db74c1196753efab85ad0b102a8c454f69b796d6e33a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zv+Uyfd2mg3qpcBJbONi9eNpg3UEOT9tkpbyw+F3IoIKVIoANn+IdsL3n6d4X7uq+VzSUtNc4gC3WgaxcokYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T21:55:25.161193Z","bundle_sha256":"5099c47f8be02354e9d959c7de0c1d4e1a1d17b941bca69cc144906dcb5948a8"}}