{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:6JQBQHKJAMVZ2U2KUXJF6QVN5P","short_pith_number":"pith:6JQBQHKJ","canonical_record":{"source":{"id":"2305.03315","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2023-05-05T06:48:11Z","cross_cats_sorted":[],"title_canon_sha256":"e607e608f36e43f05296e2107520f9772454242b27f098b295443d0e2f7fea42","abstract_canon_sha256":"a9884f004c863b3789dac0a517fc45650d70f56f8e2e72ac19dcfbfe4e47093c"},"schema_version":"1.0"},"canonical_sha256":"f260181d49032b9d534aa5d25f42adebf4a39db4a9cb02fb7ea0e3db78aced80","source":{"kind":"arxiv","id":"2305.03315","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.03315","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"arxiv_version","alias_value":"2305.03315v1","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.03315","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"pith_short_12","alias_value":"6JQBQHKJAMVZ","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"pith_short_16","alias_value":"6JQBQHKJAMVZ2U2K","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"pith_short_8","alias_value":"6JQBQHKJ","created_at":"2026-07-05T06:07:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:6JQBQHKJAMVZ2U2KUXJF6QVN5P","target":"record","payload":{"canonical_record":{"source":{"id":"2305.03315","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2023-05-05T06:48:11Z","cross_cats_sorted":[],"title_canon_sha256":"e607e608f36e43f05296e2107520f9772454242b27f098b295443d0e2f7fea42","abstract_canon_sha256":"a9884f004c863b3789dac0a517fc45650d70f56f8e2e72ac19dcfbfe4e47093c"},"schema_version":"1.0"},"canonical_sha256":"f260181d49032b9d534aa5d25f42adebf4a39db4a9cb02fb7ea0e3db78aced80","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:07:13.825745Z","signature_b64":"X0CP2XZ8Ne+A0xhAkTe7DLvgtUekGsfkVMaipsRy+a1n2PDMo9xjyIsGJrmzJEUabFAt8eSmND3DB/kXVxMbAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f260181d49032b9d534aa5d25f42adebf4a39db4a9cb02fb7ea0e3db78aced80","last_reissued_at":"2026-07-05T06:07:13.825325Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:07:13.825325Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2305.03315","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":"2026-07-05T06:07:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BlXkuahKi5T/rI/uC/S/6DJzGQqjRDIH8sKnrxpytLWb+ZuKbG7WW6dGpjteSen9mILKs+YRQG4g4cw5y+GtAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:06:47.209199Z"},"content_sha256":"08a53f8858731bfc9695d70f1247d28fd62ec9154ce16aca5aaf8539ce2aa15d","schema_version":"1.0","event_id":"sha256:08a53f8858731bfc9695d70f1247d28fd62ec9154ce16aca5aaf8539ce2aa15d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:6JQBQHKJAMVZ2U2KUXJF6QVN5P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MPMNet: A Data-Driven MPM Framework for Dynamic Fluid-Solid Interaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Aimin Hao, Hong Qin, Jin Li, Ju Dai, Shuai Li, Yang Gao","submitted_at":"2023-05-05T06:48:11Z","abstract_excerpt":"High-accuracy, high-efficiency physics-based fluid-solid interaction is essential for reality modeling and computer animation in online games or real-time Virtual Reality (VR) systems. However, the large-scale simulation of incompressible fluid and its interaction with the surrounding solid environment is either time-consuming or suffering from the reduced time/space resolution due to the complicated iterative nature pertinent to numerical computations of involved Partial Differential Equations (PDEs). In recent years, we have witnessed significant growth in exploring a different, alternative "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.03315","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/2305.03315/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":"2026-07-05T06:07:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5NAOQeWcrzTBW41n0S5V0ImGaDPoAxINiTeN1X+4fJ+sw7dxgl1r9aWVINmYBflnVDA2qQMTfg3fhFvP7lMYAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:06:47.209681Z"},"content_sha256":"37470f4066d2565e0b99115cf34ec1e07a5572921a77e3a470045cdd0e5804b7","schema_version":"1.0","event_id":"sha256:37470f4066d2565e0b99115cf34ec1e07a5572921a77e3a470045cdd0e5804b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6JQBQHKJAMVZ2U2KUXJF6QVN5P/bundle.json","state_url":"https://pith.science/pith/6JQBQHKJAMVZ2U2KUXJF6QVN5P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6JQBQHKJAMVZ2U2KUXJF6QVN5P/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":"2026-08-07T05:06:47Z","links":{"resolver":"https://pith.science/pith/6JQBQHKJAMVZ2U2KUXJF6QVN5P","bundle":"https://pith.science/pith/6JQBQHKJAMVZ2U2KUXJF6QVN5P/bundle.json","state":"https://pith.science/pith/6JQBQHKJAMVZ2U2KUXJF6QVN5P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6JQBQHKJAMVZ2U2KUXJF6QVN5P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:6JQBQHKJAMVZ2U2KUXJF6QVN5P","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":"a9884f004c863b3789dac0a517fc45650d70f56f8e2e72ac19dcfbfe4e47093c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2023-05-05T06:48:11Z","title_canon_sha256":"e607e608f36e43f05296e2107520f9772454242b27f098b295443d0e2f7fea42"},"schema_version":"1.0","source":{"id":"2305.03315","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.03315","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"arxiv_version","alias_value":"2305.03315v1","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.03315","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"pith_short_12","alias_value":"6JQBQHKJAMVZ","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"pith_short_16","alias_value":"6JQBQHKJAMVZ2U2K","created_at":"2026-07-05T06:07:13Z"},{"alias_kind":"pith_short_8","alias_value":"6JQBQHKJ","created_at":"2026-07-05T06:07:13Z"}],"graph_snapshots":[{"event_id":"sha256:37470f4066d2565e0b99115cf34ec1e07a5572921a77e3a470045cdd0e5804b7","target":"graph","created_at":"2026-07-05T06:07:13Z","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/2305.03315/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"High-accuracy, high-efficiency physics-based fluid-solid interaction is essential for reality modeling and computer animation in online games or real-time Virtual Reality (VR) systems. However, the large-scale simulation of incompressible fluid and its interaction with the surrounding solid environment is either time-consuming or suffering from the reduced time/space resolution due to the complicated iterative nature pertinent to numerical computations of involved Partial Differential Equations (PDEs). In recent years, we have witnessed significant growth in exploring a different, alternative ","authors_text":"Aimin Hao, Hong Qin, Jin Li, Ju Dai, Shuai Li, Yang Gao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2023-05-05T06:48:11Z","title":"MPMNet: A Data-Driven MPM Framework for Dynamic Fluid-Solid Interaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.03315","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":"sha256:08a53f8858731bfc9695d70f1247d28fd62ec9154ce16aca5aaf8539ce2aa15d","target":"record","created_at":"2026-07-05T06:07:13Z","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":"a9884f004c863b3789dac0a517fc45650d70f56f8e2e72ac19dcfbfe4e47093c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2023-05-05T06:48:11Z","title_canon_sha256":"e607e608f36e43f05296e2107520f9772454242b27f098b295443d0e2f7fea42"},"schema_version":"1.0","source":{"id":"2305.03315","kind":"arxiv","version":1}},"canonical_sha256":"f260181d49032b9d534aa5d25f42adebf4a39db4a9cb02fb7ea0e3db78aced80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f260181d49032b9d534aa5d25f42adebf4a39db4a9cb02fb7ea0e3db78aced80","first_computed_at":"2026-07-05T06:07:13.825325Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:07:13.825325Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X0CP2XZ8Ne+A0xhAkTe7DLvgtUekGsfkVMaipsRy+a1n2PDMo9xjyIsGJrmzJEUabFAt8eSmND3DB/kXVxMbAw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:07:13.825745Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.03315","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08a53f8858731bfc9695d70f1247d28fd62ec9154ce16aca5aaf8539ce2aa15d","sha256:37470f4066d2565e0b99115cf34ec1e07a5572921a77e3a470045cdd0e5804b7"],"state_sha256":"5bd9507fdb39095dbee45ad3ef3d3bae77f6db0d7e899647f2637c14bb778d84"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7oWJY/XnDlKWrJChg22+8t94X6F+SnNR/OdrrlC++8x6mLwlJc+QNMpfCkt4+4MHpljx+zmfLRKPlXr8vcknAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T05:06:47.213923Z","bundle_sha256":"2e44041e1d6285cf0430590ddcb6c2facb639acf42b97126fcde0dea896cc04f"}}