{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:Y5U6Y6YOQALZ6B3GW6DJE4QFNP","short_pith_number":"pith:Y5U6Y6YO","canonical_record":{"source":{"id":"2506.05436","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-06-05T09:57:01Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"153ef68ea9ca63887ce25610432ef35f25c0b50a56b58514df8031df0b95c6fc","abstract_canon_sha256":"63e0fd5a09b4cd2d530d6e24c9c6eb2e61d069f829969db00229d548ba7c38d3"},"schema_version":"1.0"},"canonical_sha256":"c769ec7b0e80179f0766b7869272056bcd1d95224f2d225f5038da4d914a392c","source":{"kind":"arxiv","id":"2506.05436","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.05436","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"arxiv_version","alias_value":"2506.05436v1","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.05436","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"pith_short_12","alias_value":"Y5U6Y6YOQALZ","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"pith_short_16","alias_value":"Y5U6Y6YOQALZ6B3G","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"pith_short_8","alias_value":"Y5U6Y6YO","created_at":"2026-07-05T11:17:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:Y5U6Y6YOQALZ6B3GW6DJE4QFNP","target":"record","payload":{"canonical_record":{"source":{"id":"2506.05436","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-06-05T09:57:01Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"153ef68ea9ca63887ce25610432ef35f25c0b50a56b58514df8031df0b95c6fc","abstract_canon_sha256":"63e0fd5a09b4cd2d530d6e24c9c6eb2e61d069f829969db00229d548ba7c38d3"},"schema_version":"1.0"},"canonical_sha256":"c769ec7b0e80179f0766b7869272056bcd1d95224f2d225f5038da4d914a392c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:17:02.671551Z","signature_b64":"8BOvXYza65GQXTjbhHSvLeroQku8SVPl/OpvIafCTsdbI+xxsx89uT2qgCS+6ICqxGHQ51GUYAW/KwZc97j6DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c769ec7b0e80179f0766b7869272056bcd1d95224f2d225f5038da4d914a392c","last_reissued_at":"2026-07-05T11:17:02.670864Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:17:02.670864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.05436","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":"2026-07-05T11:17:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZgxljJv82Sa3bsRfT6of+kPKrYbu0f3tOWkVMzZUNzZ9d8imdZeEScbQtg8qaNZa+SylyTy65bPRSQipIUQLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:54:56.285107Z"},"content_sha256":"ae599c395790f46b4c20fc9ac5c9873c075583214bfae1a159d8e019f0031403","schema_version":"1.0","event_id":"sha256:ae599c395790f46b4c20fc9ac5c9873c075583214bfae1a159d8e019f0031403"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:Y5U6Y6YOQALZ6B3GW6DJE4QFNP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Structure functions and flatness of streamwise velocity in a turbulent channel flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.data-an"],"primary_cat":"physics.flu-dyn","authors_text":"Carlos Granero-Belinchon (ODYSSEY, IMT Atlantique - MEE, Lab-STICC\\_OSE), Nicolas B. Garnier (Phys-ENS), St\\'ephane G. Roux (Phys-ENS)","submitted_at":"2025-06-05T09:57:01Z","abstract_excerpt":"In this article, we present a multiscale characterization of the streamwise velocity of a turbulent channel flow. We study the 2nd and 4th order structure functions and the flatness for scales ranging from the dissipative to the integral domains and for a wide range of distances to the walls spanning four distinct regions of the channel. We characterize the impact of the shear stress induced by the walls on these statistics. Far from the walls, in the outer layer, the impact of the boundaries on the flow is negligible and the flow statistics follow the Kolmogorov-Obukhov theory. In the viscous"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.05436","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/2506.05436/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":"2026-07-05T11:17:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BI0qRamyZiGbEafvi3dGyvYmecTAwSfzZ1VqRfwGKMn4DxmszuZRDVBDMD1qXHydqc6JHekgStk7X6y4BFuLCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:54:56.285704Z"},"content_sha256":"0d5af4b64b340ef54de69a0724c3b26b2e73b7ac14e7c857aca699b60fb03b32","schema_version":"1.0","event_id":"sha256:0d5af4b64b340ef54de69a0724c3b26b2e73b7ac14e7c857aca699b60fb03b32"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y5U6Y6YOQALZ6B3GW6DJE4QFNP/bundle.json","state_url":"https://pith.science/pith/Y5U6Y6YOQALZ6B3GW6DJE4QFNP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y5U6Y6YOQALZ6B3GW6DJE4QFNP/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":"2026-08-10T16:54:56Z","links":{"resolver":"https://pith.science/pith/Y5U6Y6YOQALZ6B3GW6DJE4QFNP","bundle":"https://pith.science/pith/Y5U6Y6YOQALZ6B3GW6DJE4QFNP/bundle.json","state":"https://pith.science/pith/Y5U6Y6YOQALZ6B3GW6DJE4QFNP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y5U6Y6YOQALZ6B3GW6DJE4QFNP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:Y5U6Y6YOQALZ6B3GW6DJE4QFNP","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":"63e0fd5a09b4cd2d530d6e24c9c6eb2e61d069f829969db00229d548ba7c38d3","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-06-05T09:57:01Z","title_canon_sha256":"153ef68ea9ca63887ce25610432ef35f25c0b50a56b58514df8031df0b95c6fc"},"schema_version":"1.0","source":{"id":"2506.05436","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.05436","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"arxiv_version","alias_value":"2506.05436v1","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.05436","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"pith_short_12","alias_value":"Y5U6Y6YOQALZ","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"pith_short_16","alias_value":"Y5U6Y6YOQALZ6B3G","created_at":"2026-07-05T11:17:02Z"},{"alias_kind":"pith_short_8","alias_value":"Y5U6Y6YO","created_at":"2026-07-05T11:17:02Z"}],"graph_snapshots":[{"event_id":"sha256:0d5af4b64b340ef54de69a0724c3b26b2e73b7ac14e7c857aca699b60fb03b32","target":"graph","created_at":"2026-07-05T11:17:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.05436/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this article, we present a multiscale characterization of the streamwise velocity of a turbulent channel flow. We study the 2nd and 4th order structure functions and the flatness for scales ranging from the dissipative to the integral domains and for a wide range of distances to the walls spanning four distinct regions of the channel. We characterize the impact of the shear stress induced by the walls on these statistics. Far from the walls, in the outer layer, the impact of the boundaries on the flow is negligible and the flow statistics follow the Kolmogorov-Obukhov theory. In the viscous","authors_text":"Carlos Granero-Belinchon (ODYSSEY, IMT Atlantique - MEE, Lab-STICC\\_OSE), Nicolas B. Garnier (Phys-ENS), St\\'ephane G. Roux (Phys-ENS)","cross_cats":["physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-06-05T09:57:01Z","title":"Structure functions and flatness of streamwise velocity in a turbulent channel flow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.05436","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:ae599c395790f46b4c20fc9ac5c9873c075583214bfae1a159d8e019f0031403","target":"record","created_at":"2026-07-05T11:17:02Z","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":"63e0fd5a09b4cd2d530d6e24c9c6eb2e61d069f829969db00229d548ba7c38d3","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-06-05T09:57:01Z","title_canon_sha256":"153ef68ea9ca63887ce25610432ef35f25c0b50a56b58514df8031df0b95c6fc"},"schema_version":"1.0","source":{"id":"2506.05436","kind":"arxiv","version":1}},"canonical_sha256":"c769ec7b0e80179f0766b7869272056bcd1d95224f2d225f5038da4d914a392c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c769ec7b0e80179f0766b7869272056bcd1d95224f2d225f5038da4d914a392c","first_computed_at":"2026-07-05T11:17:02.670864Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:17:02.670864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8BOvXYza65GQXTjbhHSvLeroQku8SVPl/OpvIafCTsdbI+xxsx89uT2qgCS+6ICqxGHQ51GUYAW/KwZc97j6DA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:17:02.671551Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.05436","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ae599c395790f46b4c20fc9ac5c9873c075583214bfae1a159d8e019f0031403","sha256:0d5af4b64b340ef54de69a0724c3b26b2e73b7ac14e7c857aca699b60fb03b32"],"state_sha256":"933d90d309e6aebf4449bf930ad1d7cc513dd54be33381a7c483b20d46b259f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H/2OQYDj6HNRD2gS3o1ys8e1usdWESutM9iKU6TdqVaQBGAFYZYAPUc6WevdLKJa5pIXPAMJoNREy9H8CuyoBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T16:54:56.289659Z","bundle_sha256":"ef804f4cc88f5ed9578efa9bfb45c5512bf6089c4644d6c70b0fe6187ae3f3cb"}}