{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:HT23H2JZQ76ZQJCWYLQJL45SFK","short_pith_number":"pith:HT23H2JZ","canonical_record":{"source":{"id":"1907.09632","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-22T23:45:48Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"649744dacb6ba8739fe3ce756af0bd0de8be6b203386ba1f069696527e35f929","abstract_canon_sha256":"5936ddfcc0d5e40d9862b754fdae43b249711eebe93ac2fdf71f7e0208d6a2e1"},"schema_version":"1.0"},"canonical_sha256":"3cf5b3e93987fd982456c2e095f3b22a9245283f61ded016e135adf2773ab97a","source":{"kind":"arxiv","id":"1907.09632","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.09632","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"arxiv_version","alias_value":"1907.09632v3","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09632","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"pith_short_12","alias_value":"HT23H2JZQ76Z","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"pith_short_16","alias_value":"HT23H2JZQ76ZQJCW","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"pith_short_8","alias_value":"HT23H2JZ","created_at":"2026-07-05T01:58:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:HT23H2JZQ76ZQJCWYLQJL45SFK","target":"record","payload":{"canonical_record":{"source":{"id":"1907.09632","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-22T23:45:48Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"649744dacb6ba8739fe3ce756af0bd0de8be6b203386ba1f069696527e35f929","abstract_canon_sha256":"5936ddfcc0d5e40d9862b754fdae43b249711eebe93ac2fdf71f7e0208d6a2e1"},"schema_version":"1.0"},"canonical_sha256":"3cf5b3e93987fd982456c2e095f3b22a9245283f61ded016e135adf2773ab97a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:58:53.871165Z","signature_b64":"iatDJoLY7cIL7B9cTUQhXCsf5Xb6cHM+kSAaBMRuyg6JdcoTqgFTADaXVtmnPSnMzcRvuUyPI2WJvvhr0azQAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3cf5b3e93987fd982456c2e095f3b22a9245283f61ded016e135adf2773ab97a","last_reissued_at":"2026-07-05T01:58:53.870730Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:58:53.870730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.09632","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:58:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w1+Mk2dJzWWw723r439HrZKQyaCJQZWumHPls8defx0pB6zwcQIYCq3hWNIlXAZw7VMGgsAx/H3r71ywneS9AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T10:12:46.989095Z"},"content_sha256":"44e1137fd41baa8948315f845dfb6f1fbb5d35a5889dcaf438b912fc7197450c","schema_version":"1.0","event_id":"sha256:44e1137fd41baa8948315f845dfb6f1fbb5d35a5889dcaf438b912fc7197450c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:HT23H2JZQ76ZQJCWYLQJL45SFK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Homogenized Flux-Body Force Treatment of Compressible Viscous Porous Wall Boundary Conditions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Charbel Farhat, Daniel Z. Huang, Man Long Wong, Sanjiva K. Lele","submitted_at":"2019-07-22T23:45:48Z","abstract_excerpt":"A homogenization approach is proposed for the treatment of porous wall boundary conditions in the computation of compressible viscous flows. Like any other homogenization approach, it eliminates the need for pore-resolved fluid meshes and therefore enables practical flow simulations in computational fluid domains with porous wall boundaries. Unlike alternative approaches however, it does not require prescribing a mass flow rate and does not introduce in the computational model a heuristic discharge coefficient. Instead, it models the inviscid flux through a porous wall surrounded by the flow a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09632","kind":"arxiv","version":3},"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/1907.09632/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":"2026-07-05T01:58:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k4sZPy8ppHlYducQ07GS49Ii6WtI7pEvzW7D4uXeHZQS9fwEcjG4fFf5j7fQQdS6J6A4kguiVb24hIxihtWUAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T10:12:46.990472Z"},"content_sha256":"1826feb34bf24f7e84372303aa5969530e05161de48c7a49d004e5b5b3a681ea","schema_version":"1.0","event_id":"sha256:1826feb34bf24f7e84372303aa5969530e05161de48c7a49d004e5b5b3a681ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HT23H2JZQ76ZQJCWYLQJL45SFK/bundle.json","state_url":"https://pith.science/pith/HT23H2JZQ76ZQJCWYLQJL45SFK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HT23H2JZQ76ZQJCWYLQJL45SFK/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":"2026-08-16T10:12:47Z","links":{"resolver":"https://pith.science/pith/HT23H2JZQ76ZQJCWYLQJL45SFK","bundle":"https://pith.science/pith/HT23H2JZQ76ZQJCWYLQJL45SFK/bundle.json","state":"https://pith.science/pith/HT23H2JZQ76ZQJCWYLQJL45SFK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HT23H2JZQ76ZQJCWYLQJL45SFK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HT23H2JZQ76ZQJCWYLQJL45SFK","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":"5936ddfcc0d5e40d9862b754fdae43b249711eebe93ac2fdf71f7e0208d6a2e1","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-22T23:45:48Z","title_canon_sha256":"649744dacb6ba8739fe3ce756af0bd0de8be6b203386ba1f069696527e35f929"},"schema_version":"1.0","source":{"id":"1907.09632","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.09632","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"arxiv_version","alias_value":"1907.09632v3","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09632","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"pith_short_12","alias_value":"HT23H2JZQ76Z","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"pith_short_16","alias_value":"HT23H2JZQ76ZQJCW","created_at":"2026-07-05T01:58:53Z"},{"alias_kind":"pith_short_8","alias_value":"HT23H2JZ","created_at":"2026-07-05T01:58:53Z"}],"graph_snapshots":[{"event_id":"sha256:1826feb34bf24f7e84372303aa5969530e05161de48c7a49d004e5b5b3a681ea","target":"graph","created_at":"2026-07-05T01:58:53Z","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/1907.09632/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A homogenization approach is proposed for the treatment of porous wall boundary conditions in the computation of compressible viscous flows. Like any other homogenization approach, it eliminates the need for pore-resolved fluid meshes and therefore enables practical flow simulations in computational fluid domains with porous wall boundaries. Unlike alternative approaches however, it does not require prescribing a mass flow rate and does not introduce in the computational model a heuristic discharge coefficient. Instead, it models the inviscid flux through a porous wall surrounded by the flow a","authors_text":"Charbel Farhat, Daniel Z. Huang, Man Long Wong, Sanjiva K. Lele","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-22T23:45:48Z","title":"Homogenized Flux-Body Force Treatment of Compressible Viscous Porous Wall Boundary Conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09632","kind":"arxiv","version":3},"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":"sha256:44e1137fd41baa8948315f845dfb6f1fbb5d35a5889dcaf438b912fc7197450c","target":"record","created_at":"2026-07-05T01:58:53Z","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":"5936ddfcc0d5e40d9862b754fdae43b249711eebe93ac2fdf71f7e0208d6a2e1","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-22T23:45:48Z","title_canon_sha256":"649744dacb6ba8739fe3ce756af0bd0de8be6b203386ba1f069696527e35f929"},"schema_version":"1.0","source":{"id":"1907.09632","kind":"arxiv","version":3}},"canonical_sha256":"3cf5b3e93987fd982456c2e095f3b22a9245283f61ded016e135adf2773ab97a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3cf5b3e93987fd982456c2e095f3b22a9245283f61ded016e135adf2773ab97a","first_computed_at":"2026-07-05T01:58:53.870730Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:58:53.870730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iatDJoLY7cIL7B9cTUQhXCsf5Xb6cHM+kSAaBMRuyg6JdcoTqgFTADaXVtmnPSnMzcRvuUyPI2WJvvhr0azQAg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:58:53.871165Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.09632","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:44e1137fd41baa8948315f845dfb6f1fbb5d35a5889dcaf438b912fc7197450c","sha256:1826feb34bf24f7e84372303aa5969530e05161de48c7a49d004e5b5b3a681ea"],"state_sha256":"6482a098c3f0c3f347c365ed0697047fb6c7ea2a8fdcd6671c7452115cbbb337"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HftY/YyOxgwyq7fr7x0Lm6noZsXTDNxUKtWEjeqjOTKENigXD4PNGe9IcsmckfEmYxDuaVH+aS4tOsdjHylCBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T10:12:47.005234Z","bundle_sha256":"208269a6180dd4d0320e050a8991790341d8fccf4e62355399c7f63d5569539c"}}