{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:I7OELGTM3DPG6HUJUWNNDKHCIM","short_pith_number":"pith:I7OELGTM","canonical_record":{"source":{"id":"2605.24672","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-05-23T17:16:53Z","cross_cats_sorted":[],"title_canon_sha256":"118f9ee382f078a91a0a09c586b7478cf5dd6462a58ae240cb4d13336032fc8a","abstract_canon_sha256":"26b4c64cf4046404832615821d1d46f9c23b5e11de5264cefbf8ddfd955e923c"},"schema_version":"1.0"},"canonical_sha256":"47dc459a6cd8de6f1e89a59ad1a8e2433e71860eaa96b517297b72d33c93a842","source":{"kind":"arxiv","id":"2605.24672","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.24672","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"arxiv_version","alias_value":"2605.24672v1","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.24672","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"pith_short_12","alias_value":"I7OELGTM3DPG","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"pith_short_16","alias_value":"I7OELGTM3DPG6HUJ","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"pith_short_8","alias_value":"I7OELGTM","created_at":"2026-05-26T01:03:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:I7OELGTM3DPG6HUJUWNNDKHCIM","target":"record","payload":{"canonical_record":{"source":{"id":"2605.24672","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-05-23T17:16:53Z","cross_cats_sorted":[],"title_canon_sha256":"118f9ee382f078a91a0a09c586b7478cf5dd6462a58ae240cb4d13336032fc8a","abstract_canon_sha256":"26b4c64cf4046404832615821d1d46f9c23b5e11de5264cefbf8ddfd955e923c"},"schema_version":"1.0"},"canonical_sha256":"47dc459a6cd8de6f1e89a59ad1a8e2433e71860eaa96b517297b72d33c93a842","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-26T01:03:52.471762Z","signature_b64":"XdRiADo280/MtP1RAhQMwPt4i9EngRDSwxd8buYCZ0lryxzw5wmLU7xXJdZLatQoWt7OkTttgnWm7WGiwxZNBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47dc459a6cd8de6f1e89a59ad1a8e2433e71860eaa96b517297b72d33c93a842","last_reissued_at":"2026-05-26T01:03:52.470903Z","signature_status":"signed_v1","first_computed_at":"2026-05-26T01:03:52.470903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.24672","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-26T01:03:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oo/c0m90zzzsow9Sa6saUZXQ9D8DsgKvSVlVsaSZrP4NUJ7nx5NdjuuClM8felbJ8PAT+91lZsCuQR3ftaB4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:27:41.645406Z"},"content_sha256":"0a5dcd944a74c5025de41dd7e7d436474420a1b958f61237e6f3428820c053fe","schema_version":"1.0","event_id":"sha256:0a5dcd944a74c5025de41dd7e7d436474420a1b958f61237e6f3428820c053fe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:I7OELGTM3DPG6HUJUWNNDKHCIM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A contaminant-concentration-dependent surface tension does not explain the absence of solutal Marangoni flow in evaporating droplets","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Javier Mart\\'inez-Puig, Javier Rodr\\'iguez-Rodr\\'iguez, Th\\'eophile Gaichies","submitted_at":"2026-05-23T17:16:53Z","abstract_excerpt":"Theoretical models of evaporating droplets predict Marangoni flows orders of magnitude faster than those observed experimentally. While this discrepancy is often attributed to surface contamination, the underlying mechanism by which contaminants weaken Marangoni stresses remains unclear. In this study, we compare particle image velocimetry (PIV) experiments with a coupled hydrodynamic and solute transport model to investigate the internal flow of evaporating aqueous droplets containing salt, glycerol, or ethanol. By analyzing both sessile and pendant droplets, we demonstrate that the flow is d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.24672","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/2605.24672/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-26T01:03:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pPEb38KoWtHvGRhRtqwgHk0PMOFZFd4oOTdVXjNMvOU6XFJpYvF4xml7NlcV4xzYUeax7adMSe2nI/YXVk8oCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:27:41.645804Z"},"content_sha256":"311b58d83f3200cf6b5a81322d68588132fb6822740021949032cbd8fe488e97","schema_version":"1.0","event_id":"sha256:311b58d83f3200cf6b5a81322d68588132fb6822740021949032cbd8fe488e97"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I7OELGTM3DPG6HUJUWNNDKHCIM/bundle.json","state_url":"https://pith.science/pith/I7OELGTM3DPG6HUJUWNNDKHCIM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I7OELGTM3DPG6HUJUWNNDKHCIM/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T15:27:41Z","links":{"resolver":"https://pith.science/pith/I7OELGTM3DPG6HUJUWNNDKHCIM","bundle":"https://pith.science/pith/I7OELGTM3DPG6HUJUWNNDKHCIM/bundle.json","state":"https://pith.science/pith/I7OELGTM3DPG6HUJUWNNDKHCIM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I7OELGTM3DPG6HUJUWNNDKHCIM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:I7OELGTM3DPG6HUJUWNNDKHCIM","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":"26b4c64cf4046404832615821d1d46f9c23b5e11de5264cefbf8ddfd955e923c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-05-23T17:16:53Z","title_canon_sha256":"118f9ee382f078a91a0a09c586b7478cf5dd6462a58ae240cb4d13336032fc8a"},"schema_version":"1.0","source":{"id":"2605.24672","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.24672","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"arxiv_version","alias_value":"2605.24672v1","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.24672","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"pith_short_12","alias_value":"I7OELGTM3DPG","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"pith_short_16","alias_value":"I7OELGTM3DPG6HUJ","created_at":"2026-05-26T01:03:52Z"},{"alias_kind":"pith_short_8","alias_value":"I7OELGTM","created_at":"2026-05-26T01:03:52Z"}],"graph_snapshots":[{"event_id":"sha256:311b58d83f3200cf6b5a81322d68588132fb6822740021949032cbd8fe488e97","target":"graph","created_at":"2026-05-26T01:03:52Z","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/2605.24672/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Theoretical models of evaporating droplets predict Marangoni flows orders of magnitude faster than those observed experimentally. While this discrepancy is often attributed to surface contamination, the underlying mechanism by which contaminants weaken Marangoni stresses remains unclear. In this study, we compare particle image velocimetry (PIV) experiments with a coupled hydrodynamic and solute transport model to investigate the internal flow of evaporating aqueous droplets containing salt, glycerol, or ethanol. By analyzing both sessile and pendant droplets, we demonstrate that the flow is d","authors_text":"Javier Mart\\'inez-Puig, Javier Rodr\\'iguez-Rodr\\'iguez, Th\\'eophile Gaichies","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-05-23T17:16:53Z","title":"A contaminant-concentration-dependent surface tension does not explain the absence of solutal Marangoni flow in evaporating droplets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.24672","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":"sha256:0a5dcd944a74c5025de41dd7e7d436474420a1b958f61237e6f3428820c053fe","target":"record","created_at":"2026-05-26T01:03:52Z","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":"26b4c64cf4046404832615821d1d46f9c23b5e11de5264cefbf8ddfd955e923c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-05-23T17:16:53Z","title_canon_sha256":"118f9ee382f078a91a0a09c586b7478cf5dd6462a58ae240cb4d13336032fc8a"},"schema_version":"1.0","source":{"id":"2605.24672","kind":"arxiv","version":1}},"canonical_sha256":"47dc459a6cd8de6f1e89a59ad1a8e2433e71860eaa96b517297b72d33c93a842","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47dc459a6cd8de6f1e89a59ad1a8e2433e71860eaa96b517297b72d33c93a842","first_computed_at":"2026-05-26T01:03:52.470903Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-26T01:03:52.470903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XdRiADo280/MtP1RAhQMwPt4i9EngRDSwxd8buYCZ0lryxzw5wmLU7xXJdZLatQoWt7OkTttgnWm7WGiwxZNBA==","signature_status":"signed_v1","signed_at":"2026-05-26T01:03:52.471762Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.24672","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a5dcd944a74c5025de41dd7e7d436474420a1b958f61237e6f3428820c053fe","sha256:311b58d83f3200cf6b5a81322d68588132fb6822740021949032cbd8fe488e97"],"state_sha256":"ec3ebfc3f7091374630340fc09cb97c06cc9601b7a725eee8449e1b345cb4bd6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XbR99evRgCiYJ1UhOp5bcYELE36a7XEVa/r/ZZpVDtbAilR593EgkvoSqqssFnKI7Od7bFAuLajJbBYSjx8ICg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:27:41.649455Z","bundle_sha256":"67dd71437dbb8a456eec0b66effb4bb0d78db6013608118a112ee6c851454292"}}