{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:3GBCG2XHEKWDVK6WWQWZZVLBRI","short_pith_number":"pith:3GBCG2XH","canonical_record":{"source":{"id":"2005.00525","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2020-05-01T17:56:21Z","cross_cats_sorted":[],"title_canon_sha256":"6aaa6965197d2d802b09646657ea826cb3c5bf28945bd38206b0f3aa626d81cf","abstract_canon_sha256":"6f7d0de478779456418305b8d23f7c70bfa38923a8d160f7765c2e25c8bb811e"},"schema_version":"1.0"},"canonical_sha256":"d982236ae722ac3aabd6b42d9cd5618a31482d00ce245a49e97b468d9afddde8","source":{"kind":"arxiv","id":"2005.00525","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.00525","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"arxiv_version","alias_value":"2005.00525v1","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.00525","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"pith_short_12","alias_value":"3GBCG2XHEKWD","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"pith_short_16","alias_value":"3GBCG2XHEKWDVK6W","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"pith_short_8","alias_value":"3GBCG2XH","created_at":"2026-07-05T01:50:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:3GBCG2XHEKWDVK6WWQWZZVLBRI","target":"record","payload":{"canonical_record":{"source":{"id":"2005.00525","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2020-05-01T17:56:21Z","cross_cats_sorted":[],"title_canon_sha256":"6aaa6965197d2d802b09646657ea826cb3c5bf28945bd38206b0f3aa626d81cf","abstract_canon_sha256":"6f7d0de478779456418305b8d23f7c70bfa38923a8d160f7765c2e25c8bb811e"},"schema_version":"1.0"},"canonical_sha256":"d982236ae722ac3aabd6b42d9cd5618a31482d00ce245a49e97b468d9afddde8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:50:58.257191Z","signature_b64":"Bkv4AJRQLI7ZBZ29RUQp2T1C17Sk+WpgLfOjoJS1KJrLkqJ+vR3b/ADhskB/CIAG9MQf0PtKBrQBoGdUd3iZAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d982236ae722ac3aabd6b42d9cd5618a31482d00ce245a49e97b468d9afddde8","last_reissued_at":"2026-07-05T01:50:58.256750Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:50:58.256750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.00525","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":"2026-07-05T01:50:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wgIiLkJ27+Wkd/rKfmRWtL2ub3Xz4m7n4S675TFGJsFwzoHUEHsJD+/mji/zIjcQ/gde7pnGEP9EnLHgjcdzDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:18:15.582106Z"},"content_sha256":"88f92f2fa990b34794937b5ce6b238b814b8a5eba525fb02fcc3a1ce3659e477","schema_version":"1.0","event_id":"sha256:88f92f2fa990b34794937b5ce6b238b814b8a5eba525fb02fcc3a1ce3659e477"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:3GBCG2XHEKWDVK6WWQWZZVLBRI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Divergence and convergence of inertial particles in high Reynolds number turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Kai Schneider, Keigo Matsuda, Thibault Oujia","submitted_at":"2020-05-01T17:56:21Z","abstract_excerpt":"Inertial particle data from three-dimensional direct numerical simulations of particle-laden homogeneous isotropic turbulence at high Reynolds number are analyzed using Voronoi tessellation of the particle positions, considering different Stokes numbers. A finite-time measure to quantify the divergence of the particle velocity by determining the volume change rate of the Voronoi cells is proposed. For inertial particles the probability distribution function (PDF) of the divergence deviates from that for fluid particles. Joint PDFs of the divergence and the Voronoi volume illustrate that the di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.00525","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/2005.00525/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":"2026-07-05T01:50:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Gehmy6xFRlh17v7xUErPQW5JGc0vmYx3mSepxfaAJFj8N1VWsBz4kxkQFdmU8yPMen/3Lz6UZLFI+rl9kHjCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:18:15.582639Z"},"content_sha256":"ab8ff4da77bb1d914942522d25b2dceca5901a8e2f2a22936e02c4503b3eb6c5","schema_version":"1.0","event_id":"sha256:ab8ff4da77bb1d914942522d25b2dceca5901a8e2f2a22936e02c4503b3eb6c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3GBCG2XHEKWDVK6WWQWZZVLBRI/bundle.json","state_url":"https://pith.science/pith/3GBCG2XHEKWDVK6WWQWZZVLBRI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3GBCG2XHEKWDVK6WWQWZZVLBRI/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":"2026-08-03T18:18:15Z","links":{"resolver":"https://pith.science/pith/3GBCG2XHEKWDVK6WWQWZZVLBRI","bundle":"https://pith.science/pith/3GBCG2XHEKWDVK6WWQWZZVLBRI/bundle.json","state":"https://pith.science/pith/3GBCG2XHEKWDVK6WWQWZZVLBRI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3GBCG2XHEKWDVK6WWQWZZVLBRI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:3GBCG2XHEKWDVK6WWQWZZVLBRI","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":"6f7d0de478779456418305b8d23f7c70bfa38923a8d160f7765c2e25c8bb811e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2020-05-01T17:56:21Z","title_canon_sha256":"6aaa6965197d2d802b09646657ea826cb3c5bf28945bd38206b0f3aa626d81cf"},"schema_version":"1.0","source":{"id":"2005.00525","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.00525","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"arxiv_version","alias_value":"2005.00525v1","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.00525","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"pith_short_12","alias_value":"3GBCG2XHEKWD","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"pith_short_16","alias_value":"3GBCG2XHEKWDVK6W","created_at":"2026-07-05T01:50:58Z"},{"alias_kind":"pith_short_8","alias_value":"3GBCG2XH","created_at":"2026-07-05T01:50:58Z"}],"graph_snapshots":[{"event_id":"sha256:ab8ff4da77bb1d914942522d25b2dceca5901a8e2f2a22936e02c4503b3eb6c5","target":"graph","created_at":"2026-07-05T01:50:58Z","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/2005.00525/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Inertial particle data from three-dimensional direct numerical simulations of particle-laden homogeneous isotropic turbulence at high Reynolds number are analyzed using Voronoi tessellation of the particle positions, considering different Stokes numbers. A finite-time measure to quantify the divergence of the particle velocity by determining the volume change rate of the Voronoi cells is proposed. For inertial particles the probability distribution function (PDF) of the divergence deviates from that for fluid particles. Joint PDFs of the divergence and the Voronoi volume illustrate that the di","authors_text":"Kai Schneider, Keigo Matsuda, Thibault Oujia","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2020-05-01T17:56:21Z","title":"Divergence and convergence of inertial particles in high Reynolds number turbulence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.00525","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":"sha256:88f92f2fa990b34794937b5ce6b238b814b8a5eba525fb02fcc3a1ce3659e477","target":"record","created_at":"2026-07-05T01:50:58Z","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":"6f7d0de478779456418305b8d23f7c70bfa38923a8d160f7765c2e25c8bb811e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2020-05-01T17:56:21Z","title_canon_sha256":"6aaa6965197d2d802b09646657ea826cb3c5bf28945bd38206b0f3aa626d81cf"},"schema_version":"1.0","source":{"id":"2005.00525","kind":"arxiv","version":1}},"canonical_sha256":"d982236ae722ac3aabd6b42d9cd5618a31482d00ce245a49e97b468d9afddde8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d982236ae722ac3aabd6b42d9cd5618a31482d00ce245a49e97b468d9afddde8","first_computed_at":"2026-07-05T01:50:58.256750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:50:58.256750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Bkv4AJRQLI7ZBZ29RUQp2T1C17Sk+WpgLfOjoJS1KJrLkqJ+vR3b/ADhskB/CIAG9MQf0PtKBrQBoGdUd3iZAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:50:58.257191Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.00525","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:88f92f2fa990b34794937b5ce6b238b814b8a5eba525fb02fcc3a1ce3659e477","sha256:ab8ff4da77bb1d914942522d25b2dceca5901a8e2f2a22936e02c4503b3eb6c5"],"state_sha256":"202ead1ac97af59e93871f099aa09d56790452aff3d690d8d183920281fd66b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bBGzUbzLpYSCuIeuUktO/IQZRvlbTxdjWNMyDtQvdMklbibC/qJb4JIF6Yzzm4tO7oNP03EDtpnTehEPc1XqCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:18:15.588294Z","bundle_sha256":"bb75ce445b4b4f153e34043633cbc008a8e4150ef2f829e8457380591359dc72"}}