{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:URBNQGSMEGAQPG53IJK6LSNBTJ","short_pith_number":"pith:URBNQGSM","schema_version":"1.0","canonical_sha256":"a442d81a4c2181079bbb4255e5c9a19a72c789bfa602e5689695a3fa7a0365f6","source":{"kind":"arxiv","id":"1907.00525","version":1},"attestation_state":"computed","paper":{"title":"Translation and rotation of a spherical particle in a turbulent boundary layer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"physics.flu-dyn","authors_text":"Diogo Barros (1), Ellen K. Longmire (1) ((1) University of Minnesota, USA), Yi Hui Tee (1)","submitted_at":"2019-07-01T03:12:56Z","abstract_excerpt":"Three-dimensional particle tracking experiments were conducted in a turbulent boundary layer with friction Reynolds number $Re_\\tau$ of 700 and 1300. Two finite size spheres with specific gravities of 1.003 (P1) and 1.050 (P2) and diameters of 60 and 120 wall units were released individually from rest on a smooth wall. The spheres were marked with dots all over the surface to monitor their translation and rotation via high-speed stereoscopic imaging. The spheres accelerated strongly after release over streamwise distances of one boundary layer thickness before approaching an approximate termin"},"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":"1907.00525","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-01T03:12:56Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"b119e3e9862c89fe12682870f9a63023f8728a017c14cb4a802c662bc5f9a876","abstract_canon_sha256":"8bda045fd45a5bf865d2e781055fef58502e5db3e5be70c0160adaa0efaae30d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:51.347052Z","signature_b64":"G0Ryysf+P25I45uHJDW98c4lYnBQhFKopaRkbWZ4WRE7KOpe4hjAuCs6L2yFK/5uL0Jg7DSJf+cYM09TJpa0Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a442d81a4c2181079bbb4255e5c9a19a72c789bfa602e5689695a3fa7a0365f6","last_reissued_at":"2026-05-17T23:41:51.346351Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:51.346351Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Translation and rotation of a spherical particle in a turbulent boundary layer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"physics.flu-dyn","authors_text":"Diogo Barros (1), Ellen K. Longmire (1) ((1) University of Minnesota, USA), Yi Hui Tee (1)","submitted_at":"2019-07-01T03:12:56Z","abstract_excerpt":"Three-dimensional particle tracking experiments were conducted in a turbulent boundary layer with friction Reynolds number $Re_\\tau$ of 700 and 1300. Two finite size spheres with specific gravities of 1.003 (P1) and 1.050 (P2) and diameters of 60 and 120 wall units were released individually from rest on a smooth wall. The spheres were marked with dots all over the surface to monitor their translation and rotation via high-speed stereoscopic imaging. The spheres accelerated strongly after release over streamwise distances of one boundary layer thickness before approaching an approximate termin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.00525","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":"1907.00525","created_at":"2026-05-17T23:41:51.346460+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.00525v1","created_at":"2026-05-17T23:41:51.346460+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.00525","created_at":"2026-05-17T23:41:51.346460+00:00"},{"alias_kind":"pith_short_12","alias_value":"URBNQGSMEGAQ","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_16","alias_value":"URBNQGSMEGAQPG53","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_8","alias_value":"URBNQGSM","created_at":"2026-05-18T12:33:30.264802+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/URBNQGSMEGAQPG53IJK6LSNBTJ","json":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ.json","graph_json":"https://pith.science/api/pith-number/URBNQGSMEGAQPG53IJK6LSNBTJ/graph.json","events_json":"https://pith.science/api/pith-number/URBNQGSMEGAQPG53IJK6LSNBTJ/events.json","paper":"https://pith.science/paper/URBNQGSM"},"agent_actions":{"view_html":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ","download_json":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ.json","view_paper":"https://pith.science/paper/URBNQGSM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.00525&json=true","fetch_graph":"https://pith.science/api/pith-number/URBNQGSMEGAQPG53IJK6LSNBTJ/graph.json","fetch_events":"https://pith.science/api/pith-number/URBNQGSMEGAQPG53IJK6LSNBTJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ/action/storage_attestation","attest_author":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ/action/author_attestation","sign_citation":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ/action/citation_signature","submit_replication":"https://pith.science/pith/URBNQGSMEGAQPG53IJK6LSNBTJ/action/replication_record"}},"created_at":"2026-05-17T23:41:51.346460+00:00","updated_at":"2026-05-17T23:41:51.346460+00:00"}