{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:AGD745RCQ3RGGO2I5RKBOCFTZF","short_pith_number":"pith:AGD745RC","canonical_record":{"source":{"id":"1902.01578","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-05T08:00:11Z","cross_cats_sorted":[],"title_canon_sha256":"7bef15f68b201edd637c046cb7afc3152e2416c3a7316819fad7eaa25aa157d3","abstract_canon_sha256":"d75c7210c34cd3f5d0f126301ded801a1a3895a92ec633f42f44451f76c07f02"},"schema_version":"1.0"},"canonical_sha256":"0187fe762286e2633b48ec541708b3c94f4a4f33b26f7aae5415fab41d9ef197","source":{"kind":"arxiv","id":"1902.01578","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.01578","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"arxiv_version","alias_value":"1902.01578v1","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.01578","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"pith_short_12","alias_value":"AGD745RCQ3RG","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"AGD745RCQ3RGGO2I","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"AGD745RC","created_at":"2026-07-05T00:30:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:AGD745RCQ3RGGO2I5RKBOCFTZF","target":"record","payload":{"canonical_record":{"source":{"id":"1902.01578","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-05T08:00:11Z","cross_cats_sorted":[],"title_canon_sha256":"7bef15f68b201edd637c046cb7afc3152e2416c3a7316819fad7eaa25aa157d3","abstract_canon_sha256":"d75c7210c34cd3f5d0f126301ded801a1a3895a92ec633f42f44451f76c07f02"},"schema_version":"1.0"},"canonical_sha256":"0187fe762286e2633b48ec541708b3c94f4a4f33b26f7aae5415fab41d9ef197","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:30:01.446502Z","signature_b64":"5gMrTfWX0Rz46VrGURjuCE9gRICkGCX2NN/3RNuJOOeUhWCfGSsMxZh68xNluAHylortxMJbxC8OZmPkPLFkBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0187fe762286e2633b48ec541708b3c94f4a4f33b26f7aae5415fab41d9ef197","last_reissued_at":"2026-07-05T00:30:01.446004Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:30:01.446004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.01578","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":"2026-07-05T00:30:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uM3unrUqulCEm93ySP7oZZS/IusjZOctC41pVvmocXymlNGpcCEPMVc69DTbstoZLgiNsZGgirRCRzNppw7fDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:53:45.173712Z"},"content_sha256":"a7886f9412a52f88f9cb191762635c4d8bbe4e4589598cc616c50e5af6e8645b","schema_version":"1.0","event_id":"sha256:a7886f9412a52f88f9cb191762635c4d8bbe4e4589598cc616c50e5af6e8645b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:AGD745RCQ3RGGO2I5RKBOCFTZF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of self-generated nanowaves on the interface of an evaporating sessile water droplet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Anand Dev Ranjan, Basudev Roy, Bhavesh Kharbanda, Dhanush Bhatt, Rahul Vaippully, Sulochana R., Viraj Dharod","submitted_at":"2019-02-05T08:00:11Z","abstract_excerpt":"Evaporating sessile droplets have been known to exhibit oscillations on the air-liquid interface. These are generally over millimeter scales. Using a novel approach, we are able to measure surface height changes of 500 nm amplitude using optical trapping of a set of microscopic particles at the interface, particularly when the vertical thickness of the droplet reduces to less than 50 $\\mu$m. We find that at the later stages of the droplet evaporation, particularly when the convection currents become large, the top air-water interface starts to spontaneously oscillate vertically as a function o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.01578","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/1902.01578/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":"2026-07-05T00:30:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bNgqwd/6gvKEIWuwxWs/APEEkhik7x6nQ8Cp3THL0Tmqhwo6ij1xeW/EUFeaFsqULUxUm2aExoauwd8bv5FJDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:53:45.174084Z"},"content_sha256":"e0ad3bbcd4472751eb11f770e28cc488a7237446feb156f49be349e06cf38466","schema_version":"1.0","event_id":"sha256:e0ad3bbcd4472751eb11f770e28cc488a7237446feb156f49be349e06cf38466"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AGD745RCQ3RGGO2I5RKBOCFTZF/bundle.json","state_url":"https://pith.science/pith/AGD745RCQ3RGGO2I5RKBOCFTZF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AGD745RCQ3RGGO2I5RKBOCFTZF/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":"2026-07-08T19:53:45Z","links":{"resolver":"https://pith.science/pith/AGD745RCQ3RGGO2I5RKBOCFTZF","bundle":"https://pith.science/pith/AGD745RCQ3RGGO2I5RKBOCFTZF/bundle.json","state":"https://pith.science/pith/AGD745RCQ3RGGO2I5RKBOCFTZF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AGD745RCQ3RGGO2I5RKBOCFTZF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:AGD745RCQ3RGGO2I5RKBOCFTZF","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":"d75c7210c34cd3f5d0f126301ded801a1a3895a92ec633f42f44451f76c07f02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-05T08:00:11Z","title_canon_sha256":"7bef15f68b201edd637c046cb7afc3152e2416c3a7316819fad7eaa25aa157d3"},"schema_version":"1.0","source":{"id":"1902.01578","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.01578","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"arxiv_version","alias_value":"1902.01578v1","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.01578","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"pith_short_12","alias_value":"AGD745RCQ3RG","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"AGD745RCQ3RGGO2I","created_at":"2026-07-05T00:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"AGD745RC","created_at":"2026-07-05T00:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:e0ad3bbcd4472751eb11f770e28cc488a7237446feb156f49be349e06cf38466","target":"graph","created_at":"2026-07-05T00:30:01Z","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/1902.01578/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Evaporating sessile droplets have been known to exhibit oscillations on the air-liquid interface. These are generally over millimeter scales. Using a novel approach, we are able to measure surface height changes of 500 nm amplitude using optical trapping of a set of microscopic particles at the interface, particularly when the vertical thickness of the droplet reduces to less than 50 $\\mu$m. We find that at the later stages of the droplet evaporation, particularly when the convection currents become large, the top air-water interface starts to spontaneously oscillate vertically as a function o","authors_text":"Anand Dev Ranjan, Basudev Roy, Bhavesh Kharbanda, Dhanush Bhatt, Rahul Vaippully, Sulochana R., Viraj Dharod","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-05T08:00:11Z","title":"Detection of self-generated nanowaves on the interface of an evaporating sessile water droplet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.01578","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:a7886f9412a52f88f9cb191762635c4d8bbe4e4589598cc616c50e5af6e8645b","target":"record","created_at":"2026-07-05T00:30:01Z","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":"d75c7210c34cd3f5d0f126301ded801a1a3895a92ec633f42f44451f76c07f02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-05T08:00:11Z","title_canon_sha256":"7bef15f68b201edd637c046cb7afc3152e2416c3a7316819fad7eaa25aa157d3"},"schema_version":"1.0","source":{"id":"1902.01578","kind":"arxiv","version":1}},"canonical_sha256":"0187fe762286e2633b48ec541708b3c94f4a4f33b26f7aae5415fab41d9ef197","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0187fe762286e2633b48ec541708b3c94f4a4f33b26f7aae5415fab41d9ef197","first_computed_at":"2026-07-05T00:30:01.446004Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:30:01.446004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5gMrTfWX0Rz46VrGURjuCE9gRICkGCX2NN/3RNuJOOeUhWCfGSsMxZh68xNluAHylortxMJbxC8OZmPkPLFkBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:30:01.446502Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.01578","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7886f9412a52f88f9cb191762635c4d8bbe4e4589598cc616c50e5af6e8645b","sha256:e0ad3bbcd4472751eb11f770e28cc488a7237446feb156f49be349e06cf38466"],"state_sha256":"466ab936ecd6c5b232956db83aa6c0245390ca9da1911fda3a5ead54140ed83b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9WvQDqtOGU1zdXJypPlr9HBvvq3UXrelr3fpjPJBzrumr03OJTS/IuWT2jseclcHNavCgMy+b+FsChKSRqvlBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T19:53:45.176789Z","bundle_sha256":"628915210e0f5a822fb251c81d474719140ae6b3da8ea61540f31019e4e45e8b"}}