{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:Q25XQQZSNZYJT3RCCIG5B7U62R","short_pith_number":"pith:Q25XQQZS","canonical_record":{"source":{"id":"1202.2157","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-10T00:21:05Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"83016a69bbff1aecc6009fcb2f0c85cb5e211d8ea31a9f496557f8d99efe5368","abstract_canon_sha256":"568e1f74267ec9828dd8caa3d395464c68a3b65be49c82b6afaaea77e8b18003"},"schema_version":"1.0"},"canonical_sha256":"86bb7843326e7099ee22120dd0fe9ed471ae89d129f4b7a7116f1eb61b653e16","source":{"kind":"arxiv","id":"1202.2157","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2157","created_at":"2026-05-18T00:23:02Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2157v3","created_at":"2026-05-18T00:23:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2157","created_at":"2026-05-18T00:23:02Z"},{"alias_kind":"pith_short_12","alias_value":"Q25XQQZSNZYJ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"Q25XQQZSNZYJT3RC","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"Q25XQQZS","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:Q25XQQZSNZYJT3RCCIG5B7U62R","target":"record","payload":{"canonical_record":{"source":{"id":"1202.2157","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-10T00:21:05Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"83016a69bbff1aecc6009fcb2f0c85cb5e211d8ea31a9f496557f8d99efe5368","abstract_canon_sha256":"568e1f74267ec9828dd8caa3d395464c68a3b65be49c82b6afaaea77e8b18003"},"schema_version":"1.0"},"canonical_sha256":"86bb7843326e7099ee22120dd0fe9ed471ae89d129f4b7a7116f1eb61b653e16","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:02.364081Z","signature_b64":"hqIz9s2zD0sdJEknv9LZYjtE4hTzGE6m39bcZfZegns2NxUdGVSatfHDjx1+KCaIR7RahDwYS4ck6+oZ41H8AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86bb7843326e7099ee22120dd0fe9ed471ae89d129f4b7a7116f1eb61b653e16","last_reissued_at":"2026-05-18T00:23:02.363604Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:02.363604Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.2157","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:23:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YXJD61S/0Tc/R2LhPhxcRQKKw3m38fBFMCcaW2H39sUIDtWcuwUBk4wrndlbeW6fB8j3UxP+PO86J/OBrP55Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:24:47.549854Z"},"content_sha256":"5b1b49c04e5ee2e96c2c2a59cc78e0bf4dfb6ad8f46eb9184276d2dd857bf022","schema_version":"1.0","event_id":"sha256:5b1b49c04e5ee2e96c2c2a59cc78e0bf4dfb6ad8f46eb9184276d2dd857bf022"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:Q25XQQZSNZYJT3RCCIG5B7U62R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Geometry of the Vapor Layer Under a Leidenfrost Drop","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"cond-mat.soft","authors_text":"A. Franco, A. L. Sharpe, J. C. Burton, R. C. A. van der Veen, S. R. Nagel","submitted_at":"2012-02-10T00:21:05Z","abstract_excerpt":"In the Leidenfrost effect, liquid drops deposited on a hot surface levitate on a thin vapor cushion fed by evaporation of the liquid. This vapor layer forms a concave depression in the drop interface. Using laser-light interference coupled to high-speed imaging, we measured the radius, curvature, and height of the vapor pocket, as well as non-axisymmetric fluctuations of the interface for water drops at different temperatures. The geometry of the vapor pocket depends primarily on the drop size and not on the substrate temperature."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2157","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:23:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2s5Ku4fTJx3hs75B+BzAZbZK7j8Xt0MV2baaoacP+qTB4Lf9CkF176ndc5fz40pb0fcHbaKi5PVCW/Acf2GDCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:24:47.550199Z"},"content_sha256":"707be68b377511fa13bc8336af168f5ac3911368587ff799c2eafb0a4f90d898","schema_version":"1.0","event_id":"sha256:707be68b377511fa13bc8336af168f5ac3911368587ff799c2eafb0a4f90d898"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q25XQQZSNZYJT3RCCIG5B7U62R/bundle.json","state_url":"https://pith.science/pith/Q25XQQZSNZYJT3RCCIG5B7U62R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q25XQQZSNZYJT3RCCIG5B7U62R/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":"2026-05-28T06:24:47Z","links":{"resolver":"https://pith.science/pith/Q25XQQZSNZYJT3RCCIG5B7U62R","bundle":"https://pith.science/pith/Q25XQQZSNZYJT3RCCIG5B7U62R/bundle.json","state":"https://pith.science/pith/Q25XQQZSNZYJT3RCCIG5B7U62R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q25XQQZSNZYJT3RCCIG5B7U62R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:Q25XQQZSNZYJT3RCCIG5B7U62R","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":"568e1f74267ec9828dd8caa3d395464c68a3b65be49c82b6afaaea77e8b18003","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-10T00:21:05Z","title_canon_sha256":"83016a69bbff1aecc6009fcb2f0c85cb5e211d8ea31a9f496557f8d99efe5368"},"schema_version":"1.0","source":{"id":"1202.2157","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2157","created_at":"2026-05-18T00:23:02Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2157v3","created_at":"2026-05-18T00:23:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2157","created_at":"2026-05-18T00:23:02Z"},{"alias_kind":"pith_short_12","alias_value":"Q25XQQZSNZYJ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"Q25XQQZSNZYJT3RC","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"Q25XQQZS","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:707be68b377511fa13bc8336af168f5ac3911368587ff799c2eafb0a4f90d898","target":"graph","created_at":"2026-05-18T00:23:02Z","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"},"paper":{"abstract_excerpt":"In the Leidenfrost effect, liquid drops deposited on a hot surface levitate on a thin vapor cushion fed by evaporation of the liquid. This vapor layer forms a concave depression in the drop interface. Using laser-light interference coupled to high-speed imaging, we measured the radius, curvature, and height of the vapor pocket, as well as non-axisymmetric fluctuations of the interface for water drops at different temperatures. The geometry of the vapor pocket depends primarily on the drop size and not on the substrate temperature.","authors_text":"A. Franco, A. L. Sharpe, J. C. Burton, R. C. A. van der Veen, S. R. Nagel","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-10T00:21:05Z","title":"The Geometry of the Vapor Layer Under a Leidenfrost Drop"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2157","kind":"arxiv","version":3},"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":"sha256:5b1b49c04e5ee2e96c2c2a59cc78e0bf4dfb6ad8f46eb9184276d2dd857bf022","target":"record","created_at":"2026-05-18T00:23:02Z","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":"568e1f74267ec9828dd8caa3d395464c68a3b65be49c82b6afaaea77e8b18003","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-02-10T00:21:05Z","title_canon_sha256":"83016a69bbff1aecc6009fcb2f0c85cb5e211d8ea31a9f496557f8d99efe5368"},"schema_version":"1.0","source":{"id":"1202.2157","kind":"arxiv","version":3}},"canonical_sha256":"86bb7843326e7099ee22120dd0fe9ed471ae89d129f4b7a7116f1eb61b653e16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86bb7843326e7099ee22120dd0fe9ed471ae89d129f4b7a7116f1eb61b653e16","first_computed_at":"2026-05-18T00:23:02.363604Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:02.363604Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hqIz9s2zD0sdJEknv9LZYjtE4hTzGE6m39bcZfZegns2NxUdGVSatfHDjx1+KCaIR7RahDwYS4ck6+oZ41H8AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:02.364081Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.2157","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b1b49c04e5ee2e96c2c2a59cc78e0bf4dfb6ad8f46eb9184276d2dd857bf022","sha256:707be68b377511fa13bc8336af168f5ac3911368587ff799c2eafb0a4f90d898"],"state_sha256":"78ae3dd0ab044bd33bbb1e2d8c96a1de734f461106fe060f3ec15313d5ed70fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WYo/zb/B8qzcdlIJ1I51GFlrPpSpHaDA28k/rG5zzM96NdyoyZeSuR0QUzuSMGP4wY8f1l/Ogj12p+ZiPJMCDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:24:47.552285Z","bundle_sha256":"5a37f6f9bb04d0dae206445a81911beb6520c17b885d5bb3794fd25e43f2ef54"}}