{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:45CL7A52TJWM3DFXYFYSWVBESY","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"89bdb2f1733ebcfbe8dba1f566f2c77ac0a2e28cede239ab5d66995d9fd965e9","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-06-29T06:30:28Z","title_canon_sha256":"71c55ce50b7c7cad4c04b8afa5ea399ef3185de8b60531000dba373c4aeb02da"},"schema_version":"1.0","source":{"id":"2606.29843","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.29843","created_at":"2026-06-30T02:17:37Z"},{"alias_kind":"arxiv_version","alias_value":"2606.29843v1","created_at":"2026-06-30T02:17:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.29843","created_at":"2026-06-30T02:17:37Z"},{"alias_kind":"pith_short_12","alias_value":"45CL7A52TJWM","created_at":"2026-06-30T02:17:37Z"},{"alias_kind":"pith_short_16","alias_value":"45CL7A52TJWM3DFX","created_at":"2026-06-30T02:17:37Z"},{"alias_kind":"pith_short_8","alias_value":"45CL7A52","created_at":"2026-06-30T02:17:37Z"}],"graph_snapshots":[{"event_id":"sha256:4e38ddf8447239b410b83c445b8a94162e49afa9594d39d437b6625110cc2ac1","target":"graph","created_at":"2026-06-30T02:17:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.29843/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Experiments in multiphase flows are often limited in their ability to simultaneously obtain velocity measurements in different phases. At the same time, flow reconstruction from phase-limited measurements is a challenging problem due to the substantially different velocity statistics across the phases. We address this problem for buoyancy-driven bubbly flows in the pseudo-turbulence regime by using a guided diffusion model. We train the model using two-dimensional slices of the velocity field extracted from fully resolved three-dimensional direct numerical simulations. The model generates phys","authors_text":"Hridey Narula, Luca Biferale, Michele Buzzicotti, Prasad Perlekar, Tianyi Li","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-06-29T06:30:28Z","title":"Gappy Reconstruction of Bubbly Flows by Guided Diffusion Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.29843","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3a2c4c17ee6bdc221746a682c48fc90a3e6b89f531f97cf501fb7cd6b137e164","target":"record","created_at":"2026-06-30T02:17:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"89bdb2f1733ebcfbe8dba1f566f2c77ac0a2e28cede239ab5d66995d9fd965e9","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-06-29T06:30:28Z","title_canon_sha256":"71c55ce50b7c7cad4c04b8afa5ea399ef3185de8b60531000dba373c4aeb02da"},"schema_version":"1.0","source":{"id":"2606.29843","kind":"arxiv","version":1}},"canonical_sha256":"e744bf83ba9a6ccd8cb7c1712b5424961fff97fbf4933cf96ca4a69f60db0b19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e744bf83ba9a6ccd8cb7c1712b5424961fff97fbf4933cf96ca4a69f60db0b19","first_computed_at":"2026-06-30T02:17:37.710229Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-30T02:17:37.710229Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x0JKrvJEviaZB32RuYYb70ZXtyb1KJ8IYspAZm90tGGrPe/4fq+v8NRzXc3zgQZsZDECMNJfT/C56y8HGfRXBQ==","signature_status":"signed_v1","signed_at":"2026-06-30T02:17:37.710740Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.29843","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a2c4c17ee6bdc221746a682c48fc90a3e6b89f531f97cf501fb7cd6b137e164","sha256:4e38ddf8447239b410b83c445b8a94162e49afa9594d39d437b6625110cc2ac1"],"state_sha256":"cff30be5771684c1abae1e7da7100b7ebf1317e8ab5d82b48bb8a6984616bb43"}