{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:MJ6UQWVKFS3JI24LZKR2KP6MIK","short_pith_number":"pith:MJ6UQWVK","canonical_record":{"source":{"id":"2412.20912","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2024-12-30T12:44:48Z","cross_cats_sorted":[],"title_canon_sha256":"e39c1ebf1b03afaffcced5a81ef48bba7237d3037fd927ef18ec7bb6369694e7","abstract_canon_sha256":"407ec751dcf8f58c84b7ba1bd02bd29636f3248d3ae0b7534cf2ce7a4628e579"},"schema_version":"1.0"},"canonical_sha256":"627d485aaa2cb6946b8bcaa3a53fcc42adaa1fb4015e86af2ccf5da4ed3e7056","source":{"kind":"arxiv","id":"2412.20912","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.20912","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"arxiv_version","alias_value":"2412.20912v3","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.20912","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"pith_short_12","alias_value":"MJ6UQWVKFS3J","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"pith_short_16","alias_value":"MJ6UQWVKFS3JI24L","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"pith_short_8","alias_value":"MJ6UQWVK","created_at":"2026-07-05T10:08:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:MJ6UQWVKFS3JI24LZKR2KP6MIK","target":"record","payload":{"canonical_record":{"source":{"id":"2412.20912","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2024-12-30T12:44:48Z","cross_cats_sorted":[],"title_canon_sha256":"e39c1ebf1b03afaffcced5a81ef48bba7237d3037fd927ef18ec7bb6369694e7","abstract_canon_sha256":"407ec751dcf8f58c84b7ba1bd02bd29636f3248d3ae0b7534cf2ce7a4628e579"},"schema_version":"1.0"},"canonical_sha256":"627d485aaa2cb6946b8bcaa3a53fcc42adaa1fb4015e86af2ccf5da4ed3e7056","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:08:26.957425Z","signature_b64":"ncvQn/qt6TO480MRWmaZF0kT9y4DOjPzRAu9siwUntXvoNPVlopMjeInpoDDoMJQfiP2zY0ibCaXKQ3VTSXbCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"627d485aaa2cb6946b8bcaa3a53fcc42adaa1fb4015e86af2ccf5da4ed3e7056","last_reissued_at":"2026-07-05T10:08:26.956962Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:08:26.956962Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.20912","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:08:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ndS0mrpCFqoqwq5Tu4vo6DbmCiIFxK4iOejzrmEpxlpvtSn5jm+v+i1mam2AzIHG66Tknw8EfafMNT6AHjgSCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T02:31:47.239957Z"},"content_sha256":"e8a1734c56c026543fa665cd302b2a837afac9b7965ced94ac8e73c0153746b3","schema_version":"1.0","event_id":"sha256:e8a1734c56c026543fa665cd302b2a837afac9b7965ced94ac8e73c0153746b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:MJ6UQWVKFS3JI24LZKR2KP6MIK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamics of Information Exchange in Zebrafish: The Role of U-Turns in Visual Communication and Behavior Modulation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.bio-ph","authors_text":"C. K. Chan, Hao-Yun Hsu","submitted_at":"2024-12-30T12:44:48Z","abstract_excerpt":"Motions of visually coupled zebrafish pairs are studied to understand the effects of information exchange on their behavior as a function of their minimal separation ($d$). We find that when $d$ is small, the pair can display a leader-follower relation (LFR) with trajectories of almost synchronized form. However, with larger $d$, although the same LFR is still maintained, the originally similar trajectories turn into different forms. Detailed analysis of their motion trajectories suggests that the pair might be using U-turns (UTs) to exchange information and to maintain a LFR at the same time."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.20912","kind":"arxiv","version":3},"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/2412.20912/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":"2026-07-05T10:08:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mq1JBV1koMW+DB4vMTi49COU2Xs4yAP84pqWNKvhAHtVhsOl97hmB4tWSszxQvyWbG4MA0uO+BrpTAXcw79vAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T02:31:47.240528Z"},"content_sha256":"4a7ac3239017a7cd043fb96c64cc741089c5c2b817969d803f6b8cd23ff008cf","schema_version":"1.0","event_id":"sha256:4a7ac3239017a7cd043fb96c64cc741089c5c2b817969d803f6b8cd23ff008cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJ6UQWVKFS3JI24LZKR2KP6MIK/bundle.json","state_url":"https://pith.science/pith/MJ6UQWVKFS3JI24LZKR2KP6MIK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJ6UQWVKFS3JI24LZKR2KP6MIK/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":"2026-08-24T02:31:47Z","links":{"resolver":"https://pith.science/pith/MJ6UQWVKFS3JI24LZKR2KP6MIK","bundle":"https://pith.science/pith/MJ6UQWVKFS3JI24LZKR2KP6MIK/bundle.json","state":"https://pith.science/pith/MJ6UQWVKFS3JI24LZKR2KP6MIK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJ6UQWVKFS3JI24LZKR2KP6MIK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:MJ6UQWVKFS3JI24LZKR2KP6MIK","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":"407ec751dcf8f58c84b7ba1bd02bd29636f3248d3ae0b7534cf2ce7a4628e579","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2024-12-30T12:44:48Z","title_canon_sha256":"e39c1ebf1b03afaffcced5a81ef48bba7237d3037fd927ef18ec7bb6369694e7"},"schema_version":"1.0","source":{"id":"2412.20912","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.20912","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"arxiv_version","alias_value":"2412.20912v3","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.20912","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"pith_short_12","alias_value":"MJ6UQWVKFS3J","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"pith_short_16","alias_value":"MJ6UQWVKFS3JI24L","created_at":"2026-07-05T10:08:26Z"},{"alias_kind":"pith_short_8","alias_value":"MJ6UQWVK","created_at":"2026-07-05T10:08:26Z"}],"graph_snapshots":[{"event_id":"sha256:4a7ac3239017a7cd043fb96c64cc741089c5c2b817969d803f6b8cd23ff008cf","target":"graph","created_at":"2026-07-05T10:08:26Z","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/2412.20912/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Motions of visually coupled zebrafish pairs are studied to understand the effects of information exchange on their behavior as a function of their minimal separation ($d$). We find that when $d$ is small, the pair can display a leader-follower relation (LFR) with trajectories of almost synchronized form. However, with larger $d$, although the same LFR is still maintained, the originally similar trajectories turn into different forms. Detailed analysis of their motion trajectories suggests that the pair might be using U-turns (UTs) to exchange information and to maintain a LFR at the same time.","authors_text":"C. K. Chan, Hao-Yun Hsu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2024-12-30T12:44:48Z","title":"Dynamics of Information Exchange in Zebrafish: The Role of U-Turns in Visual Communication and Behavior Modulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.20912","kind":"arxiv","version":3},"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:e8a1734c56c026543fa665cd302b2a837afac9b7965ced94ac8e73c0153746b3","target":"record","created_at":"2026-07-05T10:08:26Z","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":"407ec751dcf8f58c84b7ba1bd02bd29636f3248d3ae0b7534cf2ce7a4628e579","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2024-12-30T12:44:48Z","title_canon_sha256":"e39c1ebf1b03afaffcced5a81ef48bba7237d3037fd927ef18ec7bb6369694e7"},"schema_version":"1.0","source":{"id":"2412.20912","kind":"arxiv","version":3}},"canonical_sha256":"627d485aaa2cb6946b8bcaa3a53fcc42adaa1fb4015e86af2ccf5da4ed3e7056","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"627d485aaa2cb6946b8bcaa3a53fcc42adaa1fb4015e86af2ccf5da4ed3e7056","first_computed_at":"2026-07-05T10:08:26.956962Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:08:26.956962Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ncvQn/qt6TO480MRWmaZF0kT9y4DOjPzRAu9siwUntXvoNPVlopMjeInpoDDoMJQfiP2zY0ibCaXKQ3VTSXbCw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:08:26.957425Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.20912","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e8a1734c56c026543fa665cd302b2a837afac9b7965ced94ac8e73c0153746b3","sha256:4a7ac3239017a7cd043fb96c64cc741089c5c2b817969d803f6b8cd23ff008cf"],"state_sha256":"1d77b52952c6d29a06759e012a7fa83e0bc24b9504fc0e604a25c673374b069c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Y0hFjGkYnp6nqHvW8yWbn9Qn+F2GcY0FO2UmX0O132601v86xUmYfBX89mYTJdszIij6fS3fN219dEIrFGzDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-24T02:31:47.245203Z","bundle_sha256":"4c7ea0b3dec1085f3d8aba91b13db67d2d33fc1024785acc94fd32dde816b9ae"}}