{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:K3JZJTOPPIE7BS3SLMAPTAZ7CG","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":"39b4e2ce41d2a526b0bf5ac9dbb9a64eca96ee04b3c3b910e2723cb280a63441","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2022-05-13T13:27:21Z","title_canon_sha256":"fd6f1497ee97acf9562d9ec92af9fe0ee3e1285bbac508384fdd605a12443aaf"},"schema_version":"1.0","source":{"id":"2205.06635","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.06635","created_at":"2026-07-05T04:46:37Z"},{"alias_kind":"arxiv_version","alias_value":"2205.06635v2","created_at":"2026-07-05T04:46:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.06635","created_at":"2026-07-05T04:46:37Z"},{"alias_kind":"pith_short_12","alias_value":"K3JZJTOPPIE7","created_at":"2026-07-05T04:46:37Z"},{"alias_kind":"pith_short_16","alias_value":"K3JZJTOPPIE7BS3S","created_at":"2026-07-05T04:46:37Z"},{"alias_kind":"pith_short_8","alias_value":"K3JZJTOP","created_at":"2026-07-05T04:46:37Z"}],"graph_snapshots":[{"event_id":"sha256:ce08bd81fca8d5a4144e14abd59e177b04c06adda218ca3df6bc55c2cde28f41","target":"graph","created_at":"2026-07-05T04:46:37Z","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/2205.06635/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The oscillatory flows present in an inkjet printhead can lead to strong deformations of the air-liquid interface at the nozzle exit. Such deformations may lead to an inward directed air jet with bubble pinch-off and the subsequent entrainment of an air bubble, which is highly detrimental to the stability of inkjet printing. Understanding the mechanisms of bubble entrainment is therefore crucial in improving print stability. In the present work, we use ultrafast X-ray phase-contrast imaging and direct numerical simulations based on the Volume-of-Fluid method to study the mechanisms underlying t","authors_text":"Detlef Lohse, Kamel Fezzaa, Maaike Rump, Michel Versluis, Tim Segers, Uddalok Sen, Youssef Saade","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2022-05-13T13:27:21Z","title":"Vorticity-induced flow-focusing leads to bubble entrainment in an inkjet printhead: synchrotron X-ray and volume-of-fluid visualizations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.06635","kind":"arxiv","version":2},"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":"sha256:9d15d231101438497816ee9775615400f7ee16d1236d175ddda651e5d4f4202b","target":"record","created_at":"2026-07-05T04:46:37Z","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":"39b4e2ce41d2a526b0bf5ac9dbb9a64eca96ee04b3c3b910e2723cb280a63441","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2022-05-13T13:27:21Z","title_canon_sha256":"fd6f1497ee97acf9562d9ec92af9fe0ee3e1285bbac508384fdd605a12443aaf"},"schema_version":"1.0","source":{"id":"2205.06635","kind":"arxiv","version":2}},"canonical_sha256":"56d394cdcf7a09f0cb725b00f9833f11b9a17b12676cb4b31de99f5aa9a4919d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56d394cdcf7a09f0cb725b00f9833f11b9a17b12676cb4b31de99f5aa9a4919d","first_computed_at":"2026-07-05T04:46:37.592864Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:46:37.592864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xkjKbkm1WVO0AboXOgfwxpdkAc4XfqwxlbtKya/DKSlsqd48v4v9ZtItQ8woZ9vIcqHyQmmrYaSogNF8iLnyAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:46:37.593284Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.06635","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d15d231101438497816ee9775615400f7ee16d1236d175ddda651e5d4f4202b","sha256:ce08bd81fca8d5a4144e14abd59e177b04c06adda218ca3df6bc55c2cde28f41"],"state_sha256":"21d9878d7cb7c79ddcc75016cd978f6edf0388aaebdcedb016d0e43ebfb72dd1"}