{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:ZTXSU2ZLZJEWJUHBSIQC7Q5DMC","short_pith_number":"pith:ZTXSU2ZL","canonical_record":{"source":{"id":"1005.3775","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-05-20T18:15:15Z","cross_cats_sorted":[],"title_canon_sha256":"221cafaf49d1332547e5fd4ba5fca108f96bfbc7932d46b6cc6b08063c898c49","abstract_canon_sha256":"9bef21748faacec4dcc039dfd46720b58937954f1421c62dd91cbd015e0a9eae"},"schema_version":"1.0"},"canonical_sha256":"ccef2a6b2bca4964d0e192202fc3a3608c08877f4c663cb9a29ff325882518d6","source":{"kind":"arxiv","id":"1005.3775","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3775","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3775v2","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3775","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"ZTXSU2ZLZJEW","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"ZTXSU2ZLZJEWJUHB","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"ZTXSU2ZL","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:ZTXSU2ZLZJEWJUHBSIQC7Q5DMC","target":"record","payload":{"canonical_record":{"source":{"id":"1005.3775","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-05-20T18:15:15Z","cross_cats_sorted":[],"title_canon_sha256":"221cafaf49d1332547e5fd4ba5fca108f96bfbc7932d46b6cc6b08063c898c49","abstract_canon_sha256":"9bef21748faacec4dcc039dfd46720b58937954f1421c62dd91cbd015e0a9eae"},"schema_version":"1.0"},"canonical_sha256":"ccef2a6b2bca4964d0e192202fc3a3608c08877f4c663cb9a29ff325882518d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:56.388764Z","signature_b64":"ElXga3zxQnrEBUdztdwJ5PYJsH9nG6EU+VOOpB4lmrZoUr0hwNvnvft7c0iyTj+6d6WDfxI+l57S499H/ieTBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ccef2a6b2bca4964d0e192202fc3a3608c08877f4c663cb9a29ff325882518d6","last_reissued_at":"2026-05-18T02:23:56.388143Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:56.388143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.3775","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":"2026-05-18T02:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"288NuNNNjEcuYmitN7Br6PUHz03XCvXVr1xTUfr6QlbN27jz4Y1SlfzQRE3P22tmpAG9AyF68Zn+uw5PiLugBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T05:15:29.175888Z"},"content_sha256":"5e84bbef92178ab98088257d3a8194031bb7e4f2ceac2e85ec2be52546412c54","schema_version":"1.0","event_id":"sha256:5e84bbef92178ab98088257d3a8194031bb7e4f2ceac2e85ec2be52546412c54"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:ZTXSU2ZLZJEWJUHBSIQC7Q5DMC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Very fine near-wall structures in scalar mixing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Luca Galantucci, Maurizio Quadrio","submitted_at":"2010-05-20T18:15:15Z","abstract_excerpt":"Passive scalar dynamics in wall-bounded turbulence is studied via Direct Numerical Simulations of plane channel flow, for a friction Reynolds number $Re_* = 160$ and a Schmidt number $Sc=1$. Peculiar to the present research is that the spatial resolution reaches far beyond what has been employed in similar past studies. Our aim is to examine the statistics of the most dissipative events across the various layers of the channel flow, and to compare them to the homogeneous isotropic case, where the recent studies by Schumacher et al (2005) and Watanabe and Gotoh (2007) have described a range of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3775","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":"2026-05-18T02:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fXGdwYi/8Ym/RS+WvXCGu+p4obA6ApMOfIlc+yOmqnlLg6065F+re0/BF4/hhQQ7TnLWVKC+VlztTxO2F7psCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T05:15:29.176225Z"},"content_sha256":"a5c04bf9fd3b527f7704b3bcb6766db899f5ee7ff1363a9bb8d3bbdeceb54cf7","schema_version":"1.0","event_id":"sha256:a5c04bf9fd3b527f7704b3bcb6766db899f5ee7ff1363a9bb8d3bbdeceb54cf7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZTXSU2ZLZJEWJUHBSIQC7Q5DMC/bundle.json","state_url":"https://pith.science/pith/ZTXSU2ZLZJEWJUHBSIQC7Q5DMC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZTXSU2ZLZJEWJUHBSIQC7Q5DMC/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":"2026-06-26T05:15:29Z","links":{"resolver":"https://pith.science/pith/ZTXSU2ZLZJEWJUHBSIQC7Q5DMC","bundle":"https://pith.science/pith/ZTXSU2ZLZJEWJUHBSIQC7Q5DMC/bundle.json","state":"https://pith.science/pith/ZTXSU2ZLZJEWJUHBSIQC7Q5DMC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZTXSU2ZLZJEWJUHBSIQC7Q5DMC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:ZTXSU2ZLZJEWJUHBSIQC7Q5DMC","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":"9bef21748faacec4dcc039dfd46720b58937954f1421c62dd91cbd015e0a9eae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-05-20T18:15:15Z","title_canon_sha256":"221cafaf49d1332547e5fd4ba5fca108f96bfbc7932d46b6cc6b08063c898c49"},"schema_version":"1.0","source":{"id":"1005.3775","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3775","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3775v2","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3775","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"ZTXSU2ZLZJEW","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"ZTXSU2ZLZJEWJUHB","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"ZTXSU2ZL","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:a5c04bf9fd3b527f7704b3bcb6766db899f5ee7ff1363a9bb8d3bbdeceb54cf7","target":"graph","created_at":"2026-05-18T02:23:56Z","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":"Passive scalar dynamics in wall-bounded turbulence is studied via Direct Numerical Simulations of plane channel flow, for a friction Reynolds number $Re_* = 160$ and a Schmidt number $Sc=1$. Peculiar to the present research is that the spatial resolution reaches far beyond what has been employed in similar past studies. Our aim is to examine the statistics of the most dissipative events across the various layers of the channel flow, and to compare them to the homogeneous isotropic case, where the recent studies by Schumacher et al (2005) and Watanabe and Gotoh (2007) have described a range of ","authors_text":"Luca Galantucci, Maurizio Quadrio","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-05-20T18:15:15Z","title":"Very fine near-wall structures in scalar mixing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3775","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":"sha256:5e84bbef92178ab98088257d3a8194031bb7e4f2ceac2e85ec2be52546412c54","target":"record","created_at":"2026-05-18T02:23:56Z","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":"9bef21748faacec4dcc039dfd46720b58937954f1421c62dd91cbd015e0a9eae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-05-20T18:15:15Z","title_canon_sha256":"221cafaf49d1332547e5fd4ba5fca108f96bfbc7932d46b6cc6b08063c898c49"},"schema_version":"1.0","source":{"id":"1005.3775","kind":"arxiv","version":2}},"canonical_sha256":"ccef2a6b2bca4964d0e192202fc3a3608c08877f4c663cb9a29ff325882518d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ccef2a6b2bca4964d0e192202fc3a3608c08877f4c663cb9a29ff325882518d6","first_computed_at":"2026-05-18T02:23:56.388143Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:23:56.388143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ElXga3zxQnrEBUdztdwJ5PYJsH9nG6EU+VOOpB4lmrZoUr0hwNvnvft7c0iyTj+6d6WDfxI+l57S499H/ieTBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:23:56.388764Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.3775","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5e84bbef92178ab98088257d3a8194031bb7e4f2ceac2e85ec2be52546412c54","sha256:a5c04bf9fd3b527f7704b3bcb6766db899f5ee7ff1363a9bb8d3bbdeceb54cf7"],"state_sha256":"f160d7f36f49475d57143da7c9a994c03b4c1d4200c199ee715291539baabcc4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TKbyDy8sS26vV9qiTrwnYW+kId9ttP2RHfuk+cHI0UUtP/H9YsvJxdFkeHlZgPrRuAQ9XWNPe6nOagu4A8DFDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T05:15:29.178794Z","bundle_sha256":"7f51910ad77a167aa9f69ec5534cf00021edc94770a1dc6eb70ec4ca42eb7aab"}}