{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:Z4JXD7NIRCJOEVCP57OA7NXDGY","short_pith_number":"pith:Z4JXD7NI","canonical_record":{"source":{"id":"2603.23194","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2026-03-24T13:41:14Z","cross_cats_sorted":["cs.CV","cs.LG"],"title_canon_sha256":"fa8535788c9b9710cc9cb28f5427aa8719267ce0b342b36fc8cc8aa7586d734d","abstract_canon_sha256":"4e9ea006d39c8f07b7cc127b8afe2bf85ff9fa6b513c3e4100943a363e33ff3e"},"schema_version":"1.0"},"canonical_sha256":"cf1371fda88892e2544fefdc0fb6e3363c6cbf6e96202429798ea097c29f8204","source":{"kind":"arxiv","id":"2603.23194","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.23194","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"arxiv_version","alias_value":"2603.23194v2","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.23194","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"pith_short_12","alias_value":"Z4JXD7NIRCJO","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"pith_short_16","alias_value":"Z4JXD7NIRCJOEVCP","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"pith_short_8","alias_value":"Z4JXD7NI","created_at":"2026-05-20T00:05:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:Z4JXD7NIRCJOEVCP57OA7NXDGY","target":"record","payload":{"canonical_record":{"source":{"id":"2603.23194","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2026-03-24T13:41:14Z","cross_cats_sorted":["cs.CV","cs.LG"],"title_canon_sha256":"fa8535788c9b9710cc9cb28f5427aa8719267ce0b342b36fc8cc8aa7586d734d","abstract_canon_sha256":"4e9ea006d39c8f07b7cc127b8afe2bf85ff9fa6b513c3e4100943a363e33ff3e"},"schema_version":"1.0"},"canonical_sha256":"cf1371fda88892e2544fefdc0fb6e3363c6cbf6e96202429798ea097c29f8204","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:05:43.818247Z","signature_b64":"P0ukyq2Wh3HM1/OsXTmV6+tkQmk0ZFZc+guu/GaPuNTQWlbiOb9Ly/wQCSzT4PeqgOZTzLrESSycML/IdQrFAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf1371fda88892e2544fefdc0fb6e3363c6cbf6e96202429798ea097c29f8204","last_reissued_at":"2026-05-20T00:05:43.817763Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:05:43.817763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.23194","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":"2026-05-20T00:05:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JYfVKSImGrjcMZHdm+S3tAAPftEJMfpRomEmoStfaASt3AKrbq4cV2aW0VdU7aV//EYHbZfab4GrGaIfO7CUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:54:49.733189Z"},"content_sha256":"32190730b63b16bb85fa802b3b8b453cf53b3f6428bed1ff843282014da1ddb6","schema_version":"1.0","event_id":"sha256:32190730b63b16bb85fa802b3b8b453cf53b3f6428bed1ff843282014da1ddb6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:Z4JXD7NIRCJOEVCP57OA7NXDGY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PhysSkin: Real-Time and Generalizable Physics-Based Animation via Self-Supervised Neural Skinning","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CV","cs.LG"],"primary_cat":"cs.GR","authors_text":"Boming Zhao, Hujun Bao, Peter Yichen Chen, Ruizhen Hu, Siyuan Huang, Tao Cheng, Xingxuan Li, Yuanhang Lei, Zhaopeng Cui","submitted_at":"2026-03-24T13:41:14Z","abstract_excerpt":"Achieving real-time physics-based animation that generalizes across diverse 3D shapes and discretizations remains a fundamental challenge. We introduce PhysSkin, a physics-informed framework that addresses this challenge. In the spirit of Linear Blend Skinning, we learn continuous skinning fields as basis functions lifting motion subspace coordinates to full-space deformation, with subspace defined by handle transformations. To generate mesh-free, discretization-agnostic, and physically consistent skinning fields that generalize well across diverse 3D shapes, PhysSkin employs a new neural skin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.23194","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/2603.23194/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":"2026-05-20T00:05:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OTMiztigvyklH1FUKvFlRjZTp4onUNXrgT/JfsMG4G7p9ca3CpupKiZ79zWjzmHcjW0J6JW7JSKMwu9jBSrUDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:54:49.733605Z"},"content_sha256":"d76319381f893b01d6cd5aebf1f31d751865959920fcca48c40821e8b16394b2","schema_version":"1.0","event_id":"sha256:d76319381f893b01d6cd5aebf1f31d751865959920fcca48c40821e8b16394b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z4JXD7NIRCJOEVCP57OA7NXDGY/bundle.json","state_url":"https://pith.science/pith/Z4JXD7NIRCJOEVCP57OA7NXDGY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z4JXD7NIRCJOEVCP57OA7NXDGY/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":"2026-05-29T19:54:49Z","links":{"resolver":"https://pith.science/pith/Z4JXD7NIRCJOEVCP57OA7NXDGY","bundle":"https://pith.science/pith/Z4JXD7NIRCJOEVCP57OA7NXDGY/bundle.json","state":"https://pith.science/pith/Z4JXD7NIRCJOEVCP57OA7NXDGY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z4JXD7NIRCJOEVCP57OA7NXDGY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:Z4JXD7NIRCJOEVCP57OA7NXDGY","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":"4e9ea006d39c8f07b7cc127b8afe2bf85ff9fa6b513c3e4100943a363e33ff3e","cross_cats_sorted":["cs.CV","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2026-03-24T13:41:14Z","title_canon_sha256":"fa8535788c9b9710cc9cb28f5427aa8719267ce0b342b36fc8cc8aa7586d734d"},"schema_version":"1.0","source":{"id":"2603.23194","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.23194","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"arxiv_version","alias_value":"2603.23194v2","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.23194","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"pith_short_12","alias_value":"Z4JXD7NIRCJO","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"pith_short_16","alias_value":"Z4JXD7NIRCJOEVCP","created_at":"2026-05-20T00:05:43Z"},{"alias_kind":"pith_short_8","alias_value":"Z4JXD7NI","created_at":"2026-05-20T00:05:43Z"}],"graph_snapshots":[{"event_id":"sha256:d76319381f893b01d6cd5aebf1f31d751865959920fcca48c40821e8b16394b2","target":"graph","created_at":"2026-05-20T00:05:43Z","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/2603.23194/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Achieving real-time physics-based animation that generalizes across diverse 3D shapes and discretizations remains a fundamental challenge. We introduce PhysSkin, a physics-informed framework that addresses this challenge. In the spirit of Linear Blend Skinning, we learn continuous skinning fields as basis functions lifting motion subspace coordinates to full-space deformation, with subspace defined by handle transformations. To generate mesh-free, discretization-agnostic, and physically consistent skinning fields that generalize well across diverse 3D shapes, PhysSkin employs a new neural skin","authors_text":"Boming Zhao, Hujun Bao, Peter Yichen Chen, Ruizhen Hu, Siyuan Huang, Tao Cheng, Xingxuan Li, Yuanhang Lei, Zhaopeng Cui","cross_cats":["cs.CV","cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2026-03-24T13:41:14Z","title":"PhysSkin: Real-Time and Generalizable Physics-Based Animation via Self-Supervised Neural Skinning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.23194","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":"sha256:32190730b63b16bb85fa802b3b8b453cf53b3f6428bed1ff843282014da1ddb6","target":"record","created_at":"2026-05-20T00:05:43Z","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":"4e9ea006d39c8f07b7cc127b8afe2bf85ff9fa6b513c3e4100943a363e33ff3e","cross_cats_sorted":["cs.CV","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2026-03-24T13:41:14Z","title_canon_sha256":"fa8535788c9b9710cc9cb28f5427aa8719267ce0b342b36fc8cc8aa7586d734d"},"schema_version":"1.0","source":{"id":"2603.23194","kind":"arxiv","version":2}},"canonical_sha256":"cf1371fda88892e2544fefdc0fb6e3363c6cbf6e96202429798ea097c29f8204","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf1371fda88892e2544fefdc0fb6e3363c6cbf6e96202429798ea097c29f8204","first_computed_at":"2026-05-20T00:05:43.817763Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:05:43.817763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P0ukyq2Wh3HM1/OsXTmV6+tkQmk0ZFZc+guu/GaPuNTQWlbiOb9Ly/wQCSzT4PeqgOZTzLrESSycML/IdQrFAg==","signature_status":"signed_v1","signed_at":"2026-05-20T00:05:43.818247Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.23194","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32190730b63b16bb85fa802b3b8b453cf53b3f6428bed1ff843282014da1ddb6","sha256:d76319381f893b01d6cd5aebf1f31d751865959920fcca48c40821e8b16394b2"],"state_sha256":"599884b676ec74a846988fdd348ae3fd17285c54c2d119f5f045ab63576ef246"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+rQRE7W4I3fKtU4Yo5h+QDeHz6snwavWLll5n4IJ8IV8+ME/YJzy83sc/EIR4l1J2O3+N51ZqjX4EQ06URF4CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T19:54:49.735978Z","bundle_sha256":"ce8d36cfe2e25399bcc507d9ff1200c82e68510ffcbef31dcc3f49fc7e93faa4"}}