{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:2NPD4D5V4NSTCYOQLAZN5SILIR","short_pith_number":"pith:2NPD4D5V","schema_version":"1.0","canonical_sha256":"d35e3e0fb5e3653161d05832dec90b4475cf25147810f1d974b04036af6cbff1","source":{"kind":"arxiv","id":"1507.01043","version":1},"attestation_state":"computed","paper":{"title":"Forces acting on a small particle in an acoustical field in a thermoviscous fluid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Henrik Bruus, Jonas Tobias Karlsen","submitted_at":"2015-07-03T22:22:51Z","abstract_excerpt":"We present a theoretical analysis of the acoustic radiation force on a single small particle, either a thermoviscous fluid droplet or a thermoelastic solid particle, suspended in a viscous and heat-conducting fluid medium. Our analysis places no restrictions on the length scales of the viscous and thermal boundary layer thicknesses $\\delta_\\mathrm{s}$ and $\\delta_\\mathrm{t}$ relative to the particle radius $a$, but it assumes the particle to be small in comparison to the acoustic wavelength $\\lambda$. This is the limit relevant to scattering of sound and ultrasound waves from micrometer-sized "},"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":"1507.01043","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-07-03T22:22:51Z","cross_cats_sorted":[],"title_canon_sha256":"54c06bdd708a0978a251ed5471953f90ca148c605c576a70896d83ab3e50306b","abstract_canon_sha256":"0a6504cd7b821b6297023067435ef3e3db4caaab74731da4a09517f16fcae13b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:37.325274Z","signature_b64":"HD9AEfT0mlkGVlWU+T3NyMR7lf2cufafekf57bLufskD6TMpy87ZMPfOgMxM3H2zeR9HURM3C1lgn+q7Y2MDCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d35e3e0fb5e3653161d05832dec90b4475cf25147810f1d974b04036af6cbff1","last_reissued_at":"2026-05-18T01:21:37.324592Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:37.324592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Forces acting on a small particle in an acoustical field in a thermoviscous fluid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Henrik Bruus, Jonas Tobias Karlsen","submitted_at":"2015-07-03T22:22:51Z","abstract_excerpt":"We present a theoretical analysis of the acoustic radiation force on a single small particle, either a thermoviscous fluid droplet or a thermoelastic solid particle, suspended in a viscous and heat-conducting fluid medium. Our analysis places no restrictions on the length scales of the viscous and thermal boundary layer thicknesses $\\delta_\\mathrm{s}$ and $\\delta_\\mathrm{t}$ relative to the particle radius $a$, but it assumes the particle to be small in comparison to the acoustic wavelength $\\lambda$. This is the limit relevant to scattering of sound and ultrasound waves from micrometer-sized "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01043","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":"1507.01043","created_at":"2026-05-18T01:21:37.324698+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.01043v1","created_at":"2026-05-18T01:21:37.324698+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01043","created_at":"2026-05-18T01:21:37.324698+00:00"},{"alias_kind":"pith_short_12","alias_value":"2NPD4D5V4NST","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"2NPD4D5V4NSTCYOQ","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"2NPD4D5V","created_at":"2026-05-18T12:29:02.477457+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/2NPD4D5V4NSTCYOQLAZN5SILIR","json":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR.json","graph_json":"https://pith.science/api/pith-number/2NPD4D5V4NSTCYOQLAZN5SILIR/graph.json","events_json":"https://pith.science/api/pith-number/2NPD4D5V4NSTCYOQLAZN5SILIR/events.json","paper":"https://pith.science/paper/2NPD4D5V"},"agent_actions":{"view_html":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR","download_json":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR.json","view_paper":"https://pith.science/paper/2NPD4D5V","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.01043&json=true","fetch_graph":"https://pith.science/api/pith-number/2NPD4D5V4NSTCYOQLAZN5SILIR/graph.json","fetch_events":"https://pith.science/api/pith-number/2NPD4D5V4NSTCYOQLAZN5SILIR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR/action/storage_attestation","attest_author":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR/action/author_attestation","sign_citation":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR/action/citation_signature","submit_replication":"https://pith.science/pith/2NPD4D5V4NSTCYOQLAZN5SILIR/action/replication_record"}},"created_at":"2026-05-18T01:21:37.324698+00:00","updated_at":"2026-05-18T01:21:37.324698+00:00"}