{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:F37Y6GRWCWRURR4Z73VUBPIBFC","short_pith_number":"pith:F37Y6GRW","schema_version":"1.0","canonical_sha256":"2eff8f1a3615a348c799feeb40bd01289976c9ec3faba5449a95bc81aaab594e","source":{"kind":"arxiv","id":"0912.1620","version":1},"attestation_state":"computed","paper":{"title":"On bubble clustering and energy spectra in pseudo-turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"C. Sun, D. Chehata, D. Lohse, D.P.M. van Gils, J. Martinez","submitted_at":"2009-12-08T21:57:52Z","abstract_excerpt":"3D-Particle Tracking (3D-PTV) and Phase Sensitive Constant Temperature Anemometry in pseudo-turbulence--i.e., flow solely driven by rising bubbles-- were performed to investigate bubble clustering and to obtain the mean bubble rise velocity, distributions of bubble velocities, and energy spectra at dilute gas concentrations ($\\alpha \\leq2.2$%). To characterize the clustering the pair correlation function $G(r,\\theta)$ was calculated. The deformable bubbles with equivalent bubble diameter $d_b=4-5$ mm were found to cluster within a radial distance of a few bubble radii with a preferred vertical"},"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":"0912.1620","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2009-12-08T21:57:52Z","cross_cats_sorted":[],"title_canon_sha256":"2939288287737e278eb37e929c68591625131920b48e396e0a70e3b2efc82368","abstract_canon_sha256":"cb0673fca6ccb3684b2b688e058177976949cfc03bfc87146a854dede0c4ca55"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:01.652846Z","signature_b64":"UisU+SphfTMpjk9SMmgOyQHuI/wnqkbPxZzx7Nvs/HS0V3mWTANsE2Ng+ttX4pImpBzpOOa1NiCwHpgU8gqkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2eff8f1a3615a348c799feeb40bd01289976c9ec3faba5449a95bc81aaab594e","last_reissued_at":"2026-05-18T03:41:01.652242Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:01.652242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On bubble clustering and energy spectra in pseudo-turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"C. Sun, D. Chehata, D. Lohse, D.P.M. van Gils, J. Martinez","submitted_at":"2009-12-08T21:57:52Z","abstract_excerpt":"3D-Particle Tracking (3D-PTV) and Phase Sensitive Constant Temperature Anemometry in pseudo-turbulence--i.e., flow solely driven by rising bubbles-- were performed to investigate bubble clustering and to obtain the mean bubble rise velocity, distributions of bubble velocities, and energy spectra at dilute gas concentrations ($\\alpha \\leq2.2$%). To characterize the clustering the pair correlation function $G(r,\\theta)$ was calculated. The deformable bubbles with equivalent bubble diameter $d_b=4-5$ mm were found to cluster within a radial distance of a few bubble radii with a preferred vertical"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.1620","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":"0912.1620","created_at":"2026-05-18T03:41:01.652329+00:00"},{"alias_kind":"arxiv_version","alias_value":"0912.1620v1","created_at":"2026-05-18T03:41:01.652329+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.1620","created_at":"2026-05-18T03:41:01.652329+00:00"},{"alias_kind":"pith_short_12","alias_value":"F37Y6GRWCWRU","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_16","alias_value":"F37Y6GRWCWRURR4Z","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_8","alias_value":"F37Y6GRW","created_at":"2026-05-18T12:25:59.703012+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/F37Y6GRWCWRURR4Z73VUBPIBFC","json":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC.json","graph_json":"https://pith.science/api/pith-number/F37Y6GRWCWRURR4Z73VUBPIBFC/graph.json","events_json":"https://pith.science/api/pith-number/F37Y6GRWCWRURR4Z73VUBPIBFC/events.json","paper":"https://pith.science/paper/F37Y6GRW"},"agent_actions":{"view_html":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC","download_json":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC.json","view_paper":"https://pith.science/paper/F37Y6GRW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0912.1620&json=true","fetch_graph":"https://pith.science/api/pith-number/F37Y6GRWCWRURR4Z73VUBPIBFC/graph.json","fetch_events":"https://pith.science/api/pith-number/F37Y6GRWCWRURR4Z73VUBPIBFC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC/action/storage_attestation","attest_author":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC/action/author_attestation","sign_citation":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC/action/citation_signature","submit_replication":"https://pith.science/pith/F37Y6GRWCWRURR4Z73VUBPIBFC/action/replication_record"}},"created_at":"2026-05-18T03:41:01.652329+00:00","updated_at":"2026-05-18T03:41:01.652329+00:00"}