{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:VM7C45UEBRZGOURS467GFMFYVL","short_pith_number":"pith:VM7C45UE","canonical_record":{"source":{"id":"1009.2462","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-13T17:58:33Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"90d216583d2db8fb0a1636d5f9096f9f91e821dae4136b8cb9d69e394988a6de","abstract_canon_sha256":"aee49ef7bce8efdb6de057d0eecab9fcb5ef4cffe26299c83530d6147c931608"},"schema_version":"1.0"},"canonical_sha256":"ab3e2e76840c72675232e7be62b0b8aad0cec09ee9280efc116956e5f0d3e531","source":{"kind":"arxiv","id":"1009.2462","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.2462","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"arxiv_version","alias_value":"1009.2462v2","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2462","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"pith_short_12","alias_value":"VM7C45UEBRZG","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VM7C45UEBRZGOURS","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VM7C45UE","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:VM7C45UEBRZGOURS467GFMFYVL","target":"record","payload":{"canonical_record":{"source":{"id":"1009.2462","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-13T17:58:33Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"90d216583d2db8fb0a1636d5f9096f9f91e821dae4136b8cb9d69e394988a6de","abstract_canon_sha256":"aee49ef7bce8efdb6de057d0eecab9fcb5ef4cffe26299c83530d6147c931608"},"schema_version":"1.0"},"canonical_sha256":"ab3e2e76840c72675232e7be62b0b8aad0cec09ee9280efc116956e5f0d3e531","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:11:28.926852Z","signature_b64":"+dRIGCJMPgUMXJWHQr2BR3rgd4fLM5XRr+hkf/vDAuhRgOQr8bhH23iGOPiX43d8lZv4BpHyljKGZNXZBcywCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab3e2e76840c72675232e7be62b0b8aad0cec09ee9280efc116956e5f0d3e531","last_reissued_at":"2026-05-18T04:11:28.926195Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:11:28.926195Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.2462","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:11:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7glQ/QgTEP4D3or0A/QeSjChZKv2INuKsLlVw7Dx24fF31IotCC1H5wxHGPxegULY5B/qaRjlgq9H4vu/ICGDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T18:59:18.171405Z"},"content_sha256":"8d11a9594f90e5a444c566fd2a71d0ec06e0eb4a24b858224d4da79954656683","schema_version":"1.0","event_id":"sha256:8d11a9594f90e5a444c566fd2a71d0ec06e0eb4a24b858224d4da79954656683"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:VM7C45UEBRZGOURS467GFMFYVL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct Measurement of Turbulent Shear","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CD"],"primary_cat":"physics.flu-dyn","authors_text":"Stanley Steers, Stefanus Stefanus, Walter Goldburg","submitted_at":"2010-09-13T17:58:33Z","abstract_excerpt":"A photon correlation method is introduced for measuring components of the shear rate tensor in a turbulent soap film. This new scheme, which is also applicable to three-dimensional flows, is shown to give the same results as Laser Doppler velocimetry, but with less statistical noise. The technique yields the mean shear rate s, its standard deviation, and a simple mathematical transform of the probability density function P(s) of the shear rate itself."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2462","kind":"arxiv","version":2},"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":"2026-05-18T04:11:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aQnTnDBYX9WvRjN8LkoNqTPWzMGZDHOFWELUztXQBOZGXkB56Tla3wP47xC3SBp2wyWoYB9mfkOJpAgpKoa5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T18:59:18.171750Z"},"content_sha256":"ef8c162af68aaa9604ef6275ef875ca6d4a8326f1fb7dae2889b1e9247e5a30e","schema_version":"1.0","event_id":"sha256:ef8c162af68aaa9604ef6275ef875ca6d4a8326f1fb7dae2889b1e9247e5a30e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VM7C45UEBRZGOURS467GFMFYVL/bundle.json","state_url":"https://pith.science/pith/VM7C45UEBRZGOURS467GFMFYVL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VM7C45UEBRZGOURS467GFMFYVL/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":"2026-06-03T18:59:18Z","links":{"resolver":"https://pith.science/pith/VM7C45UEBRZGOURS467GFMFYVL","bundle":"https://pith.science/pith/VM7C45UEBRZGOURS467GFMFYVL/bundle.json","state":"https://pith.science/pith/VM7C45UEBRZGOURS467GFMFYVL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VM7C45UEBRZGOURS467GFMFYVL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:VM7C45UEBRZGOURS467GFMFYVL","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":"aee49ef7bce8efdb6de057d0eecab9fcb5ef4cffe26299c83530d6147c931608","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-13T17:58:33Z","title_canon_sha256":"90d216583d2db8fb0a1636d5f9096f9f91e821dae4136b8cb9d69e394988a6de"},"schema_version":"1.0","source":{"id":"1009.2462","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.2462","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"arxiv_version","alias_value":"1009.2462v2","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2462","created_at":"2026-05-18T04:11:28Z"},{"alias_kind":"pith_short_12","alias_value":"VM7C45UEBRZG","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VM7C45UEBRZGOURS","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VM7C45UE","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:ef8c162af68aaa9604ef6275ef875ca6d4a8326f1fb7dae2889b1e9247e5a30e","target":"graph","created_at":"2026-05-18T04:11:28Z","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":"A photon correlation method is introduced for measuring components of the shear rate tensor in a turbulent soap film. This new scheme, which is also applicable to three-dimensional flows, is shown to give the same results as Laser Doppler velocimetry, but with less statistical noise. The technique yields the mean shear rate s, its standard deviation, and a simple mathematical transform of the probability density function P(s) of the shear rate itself.","authors_text":"Stanley Steers, Stefanus Stefanus, Walter Goldburg","cross_cats":["nlin.CD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-13T17:58:33Z","title":"Direct Measurement of Turbulent Shear"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2462","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":"sha256:8d11a9594f90e5a444c566fd2a71d0ec06e0eb4a24b858224d4da79954656683","target":"record","created_at":"2026-05-18T04:11:28Z","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":"aee49ef7bce8efdb6de057d0eecab9fcb5ef4cffe26299c83530d6147c931608","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-13T17:58:33Z","title_canon_sha256":"90d216583d2db8fb0a1636d5f9096f9f91e821dae4136b8cb9d69e394988a6de"},"schema_version":"1.0","source":{"id":"1009.2462","kind":"arxiv","version":2}},"canonical_sha256":"ab3e2e76840c72675232e7be62b0b8aad0cec09ee9280efc116956e5f0d3e531","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab3e2e76840c72675232e7be62b0b8aad0cec09ee9280efc116956e5f0d3e531","first_computed_at":"2026-05-18T04:11:28.926195Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:28.926195Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+dRIGCJMPgUMXJWHQr2BR3rgd4fLM5XRr+hkf/vDAuhRgOQr8bhH23iGOPiX43d8lZv4BpHyljKGZNXZBcywCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:28.926852Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.2462","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d11a9594f90e5a444c566fd2a71d0ec06e0eb4a24b858224d4da79954656683","sha256:ef8c162af68aaa9604ef6275ef875ca6d4a8326f1fb7dae2889b1e9247e5a30e"],"state_sha256":"ae0e2b083c11954f65d03f8fbe50923e7da539213fbae16f6cdca3c61f2129cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TOJZgcQ6Vq9K+p1KvmtZXuGaZ723WH6GjzN6M7xDCg5A1oet4wT8uk4k0DkD/ZFGyH/JyxeTBEGDLb0Q7WlaDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T18:59:18.173910Z","bundle_sha256":"c9eed3271a536f84ea2f5c03c122dc07a68d802280645ca03ba6e822a65d678c"}}