{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:Q7CP4Y52F4YXKKUCBINP7YTJIN","short_pith_number":"pith:Q7CP4Y52","canonical_record":{"source":{"id":"2303.13108","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2023-03-23T08:54:28Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"03b71de9d5c1ae1d62d14758b7296b9a3dc6bb377dae487e431b474af1e92da4","abstract_canon_sha256":"4976ff790393ec68ad5f2b2b29b96721b494aa01611184223637094add492f8e"},"schema_version":"1.0"},"canonical_sha256":"87c4fe63ba2f31752a820a1affe2694343e53e2751a87f78391000b2656c6322","source":{"kind":"arxiv","id":"2303.13108","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.13108","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"arxiv_version","alias_value":"2303.13108v2","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.13108","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"pith_short_12","alias_value":"Q7CP4Y52F4YX","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"pith_short_16","alias_value":"Q7CP4Y52F4YXKKUC","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"pith_short_8","alias_value":"Q7CP4Y52","created_at":"2026-07-05T05:54:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:Q7CP4Y52F4YXKKUCBINP7YTJIN","target":"record","payload":{"canonical_record":{"source":{"id":"2303.13108","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2023-03-23T08:54:28Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"03b71de9d5c1ae1d62d14758b7296b9a3dc6bb377dae487e431b474af1e92da4","abstract_canon_sha256":"4976ff790393ec68ad5f2b2b29b96721b494aa01611184223637094add492f8e"},"schema_version":"1.0"},"canonical_sha256":"87c4fe63ba2f31752a820a1affe2694343e53e2751a87f78391000b2656c6322","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:54:16.982778Z","signature_b64":"w3lvtINgQ4egTrNNE00AnHg9KTVvckq6qsWK07HnVv5oMzOUjpyt5bk20UbKgS82ioywmOFn35l2xODpg1I3Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87c4fe63ba2f31752a820a1affe2694343e53e2751a87f78391000b2656c6322","last_reissued_at":"2026-07-05T05:54:16.982361Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:54:16.982361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.13108","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":"2026-07-05T05:54:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j9rRPsnGOP8P175isLJQTCuNnafbODpFcskmwT00qE1SKQOLycRz9N2EKBCCDd4SkR6i+RbRvumBF3eDbdk0AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T22:40:03.043945Z"},"content_sha256":"1460e206a4b1b88c734e4ff8c1edf556942e92bdd5f757ab9b7d1f8c10ffd01a","schema_version":"1.0","event_id":"sha256:1460e206a4b1b88c734e4ff8c1edf556942e92bdd5f757ab9b7d1f8c10ffd01a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:Q7CP4Y52F4YXKKUCBINP7YTJIN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive wave-particle decomposition in UGKWP method for high-speed flow simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Junzhe Cao, Kun Xu, Xing Ji, Yufeng Wei","submitted_at":"2023-03-23T08:54:28Z","abstract_excerpt":"With wave-particle decomposition, a unified gas-kinetic wave-particle (UGKWP) method has been developed for the multiscale flow simulations. The UGKWP method captures the transport process in all flow regimes without kinetic solver's constraint on the numerical mesh size and time step being less than the particle mean free path and collision time. In the current UGKWP method, the cell's Knudsen number, defined as the ratio of collision time to numerical time step, is used to distribute the components in the wave-particle decomposition. However, the adaptation of particle in UGKWP is mainly for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.13108","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.13108/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":"2026-07-05T05:54:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6eKBWm8bm3O0N8sRevn8CbTrQ//L4wCjIZXZdR/LBnuC79Xb14rt6nPsqFqrhKuGPiQX2EM7d0Qhv6SIcaWJDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T22:40:03.044458Z"},"content_sha256":"5b1ad83bd5193225359715bf396fa2a1b7c3a439768b978939521db2175a9b1b","schema_version":"1.0","event_id":"sha256:5b1ad83bd5193225359715bf396fa2a1b7c3a439768b978939521db2175a9b1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q7CP4Y52F4YXKKUCBINP7YTJIN/bundle.json","state_url":"https://pith.science/pith/Q7CP4Y52F4YXKKUCBINP7YTJIN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q7CP4Y52F4YXKKUCBINP7YTJIN/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":"2026-08-04T22:40:03Z","links":{"resolver":"https://pith.science/pith/Q7CP4Y52F4YXKKUCBINP7YTJIN","bundle":"https://pith.science/pith/Q7CP4Y52F4YXKKUCBINP7YTJIN/bundle.json","state":"https://pith.science/pith/Q7CP4Y52F4YXKKUCBINP7YTJIN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q7CP4Y52F4YXKKUCBINP7YTJIN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:Q7CP4Y52F4YXKKUCBINP7YTJIN","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":"4976ff790393ec68ad5f2b2b29b96721b494aa01611184223637094add492f8e","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2023-03-23T08:54:28Z","title_canon_sha256":"03b71de9d5c1ae1d62d14758b7296b9a3dc6bb377dae487e431b474af1e92da4"},"schema_version":"1.0","source":{"id":"2303.13108","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.13108","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"arxiv_version","alias_value":"2303.13108v2","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.13108","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"pith_short_12","alias_value":"Q7CP4Y52F4YX","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"pith_short_16","alias_value":"Q7CP4Y52F4YXKKUC","created_at":"2026-07-05T05:54:16Z"},{"alias_kind":"pith_short_8","alias_value":"Q7CP4Y52","created_at":"2026-07-05T05:54:16Z"}],"graph_snapshots":[{"event_id":"sha256:5b1ad83bd5193225359715bf396fa2a1b7c3a439768b978939521db2175a9b1b","target":"graph","created_at":"2026-07-05T05:54:16Z","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/2303.13108/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With wave-particle decomposition, a unified gas-kinetic wave-particle (UGKWP) method has been developed for the multiscale flow simulations. The UGKWP method captures the transport process in all flow regimes without kinetic solver's constraint on the numerical mesh size and time step being less than the particle mean free path and collision time. In the current UGKWP method, the cell's Knudsen number, defined as the ratio of collision time to numerical time step, is used to distribute the components in the wave-particle decomposition. However, the adaptation of particle in UGKWP is mainly for","authors_text":"Junzhe Cao, Kun Xu, Xing Ji, Yufeng Wei","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2023-03-23T08:54:28Z","title":"Adaptive wave-particle decomposition in UGKWP method for high-speed flow simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.13108","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":"sha256:1460e206a4b1b88c734e4ff8c1edf556942e92bdd5f757ab9b7d1f8c10ffd01a","target":"record","created_at":"2026-07-05T05:54:16Z","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":"4976ff790393ec68ad5f2b2b29b96721b494aa01611184223637094add492f8e","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2023-03-23T08:54:28Z","title_canon_sha256":"03b71de9d5c1ae1d62d14758b7296b9a3dc6bb377dae487e431b474af1e92da4"},"schema_version":"1.0","source":{"id":"2303.13108","kind":"arxiv","version":2}},"canonical_sha256":"87c4fe63ba2f31752a820a1affe2694343e53e2751a87f78391000b2656c6322","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87c4fe63ba2f31752a820a1affe2694343e53e2751a87f78391000b2656c6322","first_computed_at":"2026-07-05T05:54:16.982361Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:54:16.982361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w3lvtINgQ4egTrNNE00AnHg9KTVvckq6qsWK07HnVv5oMzOUjpyt5bk20UbKgS82ioywmOFn35l2xODpg1I3Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:54:16.982778Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.13108","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1460e206a4b1b88c734e4ff8c1edf556942e92bdd5f757ab9b7d1f8c10ffd01a","sha256:5b1ad83bd5193225359715bf396fa2a1b7c3a439768b978939521db2175a9b1b"],"state_sha256":"ead33ff9b6edb71bfc9861f87aea0afe45ed1346dd24f1f0366840df11eec4cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ihtb5PmApvqGokKxInAYD4s8bLrrq/MjlBi1Z0PQK0NpwQNBMmvtbpS6eree05RsQ5T2mGyB5qwmEETVVozmCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T22:40:03.048290Z","bundle_sha256":"9e8482835659ba38683f9023990fbf174d6979a7edb7ea31fccff9ac1fd3283d"}}