{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:756UUDJQ5NDA7KXLOBNWNV5ASH","short_pith_number":"pith:756UUDJQ","schema_version":"1.0","canonical_sha256":"ff7d4a0d30eb460faaeb705b66d7a091daaf7be373da63e8b0f1f593414bb9f9","source":{"kind":"arxiv","id":"2606.19556","version":1},"attestation_state":"computed","paper":{"title":"A hybrid sharp-diffuse interface approach to accurately model melt pool dynamics with rapid evaporation in laser-based processing of metals","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CE","authors_text":"Andreas Koch, Christoph Meier, Magdalena Schreter-Fleischhacker, Nils Much","submitted_at":"2026-06-17T19:57:40Z","abstract_excerpt":"Predictive simulation of melt pool dynamics in laser-based processing of metals, e.g., laser beam welding or laser powder bed fusion additive manufacturing, requires accurate resolution of thermo-hydrodynamic interactions at the melt-gas interface. Here, evaporation-induced recoil pressure and temperature-dependent surface tension govern the flow. Because these mechanisms depend sensitively, often exponentially, on the interface temperature, reliable predictions demand highly accurate heat transfer models. Popular diffuse-interface formulations smear the extreme thermal gradients as typical fo"},"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":"2606.19556","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2026-06-17T19:57:40Z","cross_cats_sorted":[],"title_canon_sha256":"15d2ce0726103ca89b03ee765285a76aef24df9ed7b94544f5211075f23bd925","abstract_canon_sha256":"9296f9edc615de78e9d3c901c4205ce49324d7880adcc0e389376d8b84e09f87"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:12:28.845512Z","signature_b64":"up5Z4ZLx/H8gxW0VpIweGf9jpl/9fwpvxMCzWhvV52q2GIZWBmgSe7qFmffTvnBIBpDSuXGemg5PDU9CcK7qCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff7d4a0d30eb460faaeb705b66d7a091daaf7be373da63e8b0f1f593414bb9f9","last_reissued_at":"2026-06-19T16:12:28.845133Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:12:28.845133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A hybrid sharp-diffuse interface approach to accurately model melt pool dynamics with rapid evaporation in laser-based processing of metals","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CE","authors_text":"Andreas Koch, Christoph Meier, Magdalena Schreter-Fleischhacker, Nils Much","submitted_at":"2026-06-17T19:57:40Z","abstract_excerpt":"Predictive simulation of melt pool dynamics in laser-based processing of metals, e.g., laser beam welding or laser powder bed fusion additive manufacturing, requires accurate resolution of thermo-hydrodynamic interactions at the melt-gas interface. Here, evaporation-induced recoil pressure and temperature-dependent surface tension govern the flow. Because these mechanisms depend sensitively, often exponentially, on the interface temperature, reliable predictions demand highly accurate heat transfer models. Popular diffuse-interface formulations smear the extreme thermal gradients as typical fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19556","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.19556/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.19556","created_at":"2026-06-19T16:12:28.845194+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.19556v1","created_at":"2026-06-19T16:12:28.845194+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.19556","created_at":"2026-06-19T16:12:28.845194+00:00"},{"alias_kind":"pith_short_12","alias_value":"756UUDJQ5NDA","created_at":"2026-06-19T16:12:28.845194+00:00"},{"alias_kind":"pith_short_16","alias_value":"756UUDJQ5NDA7KXL","created_at":"2026-06-19T16:12:28.845194+00:00"},{"alias_kind":"pith_short_8","alias_value":"756UUDJQ","created_at":"2026-06-19T16:12:28.845194+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/756UUDJQ5NDA7KXLOBNWNV5ASH","json":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH.json","graph_json":"https://pith.science/api/pith-number/756UUDJQ5NDA7KXLOBNWNV5ASH/graph.json","events_json":"https://pith.science/api/pith-number/756UUDJQ5NDA7KXLOBNWNV5ASH/events.json","paper":"https://pith.science/paper/756UUDJQ"},"agent_actions":{"view_html":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH","download_json":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH.json","view_paper":"https://pith.science/paper/756UUDJQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.19556&json=true","fetch_graph":"https://pith.science/api/pith-number/756UUDJQ5NDA7KXLOBNWNV5ASH/graph.json","fetch_events":"https://pith.science/api/pith-number/756UUDJQ5NDA7KXLOBNWNV5ASH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH/action/storage_attestation","attest_author":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH/action/author_attestation","sign_citation":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH/action/citation_signature","submit_replication":"https://pith.science/pith/756UUDJQ5NDA7KXLOBNWNV5ASH/action/replication_record"}},"created_at":"2026-06-19T16:12:28.845194+00:00","updated_at":"2026-06-19T16:12:28.845194+00:00"}