{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:RJ4D62BEYXZFXYJUMLXLOSZRUH","short_pith_number":"pith:RJ4D62BE","schema_version":"1.0","canonical_sha256":"8a783f6824c5f25be13462eeb74b31a1e4a9b75a63e6f7c5e28b2735a587d440","source":{"kind":"arxiv","id":"1707.00584","version":1},"attestation_state":"computed","paper":{"title":"A hydrodynamic analytical model of fish tilt angle: Implications for the modelling of the acoustic target strength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Federico Agust\\'in Membiela, Mat\\'ias Germ\\'an dell'Erba","submitted_at":"2017-07-03T15:05:05Z","abstract_excerpt":"We implement a simple hydrodynamical model to study behavioural swimming tilt angle of open swimmbladder fish. For this purpose we study the stability of forces acting on a fish swimming horizontally with constant velocity. Additionally, the open swimbladder compression with the depth is modelled by Boyle's law. With these, our model gives an analytical solution relating the depth with the body tilt angle and the velocity. An interesting result for steady horizontal swimming is that the body tilt decreases with velocity almost like $v^{-1}$. Moreover, we give an expression for the maximum tilt"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1707.00584","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2017-07-03T15:05:05Z","cross_cats_sorted":["physics.bio-ph"],"title_canon_sha256":"a91aa92959bf7b6e99d49d8fc40bd2150de0df73e8c0b2ea14f4c97f47a39e53","abstract_canon_sha256":"b2e3993afc6aa9a95a1b1fb3deaf599267fcfd65e7d24770540ed4ac41aea234"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:02.946033Z","signature_b64":"xMuinan2x8U0kiv79wpNlyyD4EEthsXaUhof4Sa+7m9yHLxVoP76X8uPcu+wyNzkguAamcf/3QlC3Y0RlrySDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a783f6824c5f25be13462eeb74b31a1e4a9b75a63e6f7c5e28b2735a587d440","last_reissued_at":"2026-05-18T00:41:02.945386Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:02.945386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A hydrodynamic analytical model of fish tilt angle: Implications for the modelling of the acoustic target strength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Federico Agust\\'in Membiela, Mat\\'ias Germ\\'an dell'Erba","submitted_at":"2017-07-03T15:05:05Z","abstract_excerpt":"We implement a simple hydrodynamical model to study behavioural swimming tilt angle of open swimmbladder fish. For this purpose we study the stability of forces acting on a fish swimming horizontally with constant velocity. Additionally, the open swimbladder compression with the depth is modelled by Boyle's law. With these, our model gives an analytical solution relating the depth with the body tilt angle and the velocity. An interesting result for steady horizontal swimming is that the body tilt decreases with velocity almost like $v^{-1}$. Moreover, we give an expression for the maximum tilt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00584","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1707.00584","created_at":"2026-05-18T00:41:02.945460+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.00584v1","created_at":"2026-05-18T00:41:02.945460+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.00584","created_at":"2026-05-18T00:41:02.945460+00:00"},{"alias_kind":"pith_short_12","alias_value":"RJ4D62BEYXZF","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_16","alias_value":"RJ4D62BEYXZFXYJU","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_8","alias_value":"RJ4D62BE","created_at":"2026-05-18T12:31:39.905425+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH","json":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH.json","graph_json":"https://pith.science/api/pith-number/RJ4D62BEYXZFXYJUMLXLOSZRUH/graph.json","events_json":"https://pith.science/api/pith-number/RJ4D62BEYXZFXYJUMLXLOSZRUH/events.json","paper":"https://pith.science/paper/RJ4D62BE"},"agent_actions":{"view_html":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH","download_json":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH.json","view_paper":"https://pith.science/paper/RJ4D62BE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.00584&json=true","fetch_graph":"https://pith.science/api/pith-number/RJ4D62BEYXZFXYJUMLXLOSZRUH/graph.json","fetch_events":"https://pith.science/api/pith-number/RJ4D62BEYXZFXYJUMLXLOSZRUH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH/action/storage_attestation","attest_author":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH/action/author_attestation","sign_citation":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH/action/citation_signature","submit_replication":"https://pith.science/pith/RJ4D62BEYXZFXYJUMLXLOSZRUH/action/replication_record"}},"created_at":"2026-05-18T00:41:02.945460+00:00","updated_at":"2026-05-18T00:41:02.945460+00:00"}