{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:4O2CAXDQJUC7UJGLYM55FPU2XV","short_pith_number":"pith:4O2CAXDQ","canonical_record":{"source":{"id":"2012.11310","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-21T13:22:10Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"8c9de8510a517d289b93591220388857dd7dc3e50c87b3aea1a435cec9559760","abstract_canon_sha256":"3302b39da4ab48a71028517954e8874e0d85c15e173ed5130297329d3a7d2ad3"},"schema_version":"1.0"},"canonical_sha256":"e3b4205c704d05fa24cbc33bd2be9abd7ee07bd539f3d0293688f028c7fe0e1d","source":{"kind":"arxiv","id":"2012.11310","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.11310","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"2012.11310v3","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.11310","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"4O2CAXDQJUC7","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"pith_short_16","alias_value":"4O2CAXDQJUC7UJGL","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"pith_short_8","alias_value":"4O2CAXDQ","created_at":"2026-07-05T02:42:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:4O2CAXDQJUC7UJGLYM55FPU2XV","target":"record","payload":{"canonical_record":{"source":{"id":"2012.11310","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-21T13:22:10Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"8c9de8510a517d289b93591220388857dd7dc3e50c87b3aea1a435cec9559760","abstract_canon_sha256":"3302b39da4ab48a71028517954e8874e0d85c15e173ed5130297329d3a7d2ad3"},"schema_version":"1.0"},"canonical_sha256":"e3b4205c704d05fa24cbc33bd2be9abd7ee07bd539f3d0293688f028c7fe0e1d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:42:13.937263Z","signature_b64":"Kjr15Cxd6946XKYeJE9ovQzAe6Ynp0x2KVF2lba0Qz4e5MTCDMngt48oDFr5sAY7OW62xu4GatQDDuvlav+eAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3b4205c704d05fa24cbc33bd2be9abd7ee07bd539f3d0293688f028c7fe0e1d","last_reissued_at":"2026-07-05T02:42:13.936818Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:42:13.936818Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.11310","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":"2026-07-05T02:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"661wSx2RV9FZSc6Jan+/zg6aUby0fzRJVi1VDlLWIRS7esrFZgqjDIvvPyZuLK0Eyz0buvBE4p8kINh8qH94CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T19:29:07.613901Z"},"content_sha256":"a8ba01b7004b3238e1908c0f5ce343bfcd3ca37760ffc17a2cfb96834367ef24","schema_version":"1.0","event_id":"sha256:a8ba01b7004b3238e1908c0f5ce343bfcd3ca37760ffc17a2cfb96834367ef24"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:4O2CAXDQJUC7UJGLYM55FPU2XV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PBNS: Physically Based Neural Simulator for Unsupervised Garment Pose Space Deformation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.GR"],"primary_cat":"cs.CV","authors_text":"Hugo Bertiche, Meysam Madadi, Sergio Escalera","submitted_at":"2020-12-21T13:22:10Z","abstract_excerpt":"We present a methodology to automatically obtain Pose Space Deformation (PSD) basis for rigged garments through deep learning. Classical approaches rely on Physically Based Simulations (PBS) to animate clothes. These are general solutions that, given a sufficiently fine-grained discretization of space and time, can achieve highly realistic results. However, they are computationally expensive and any scene modification prompts the need of re-simulation. Linear Blend Skinning (LBS) with PSD offers a lightweight alternative to PBS, though, it needs huge volumes of data to learn proper PSD. We pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.11310","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/2012.11310/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":"2026-07-05T02:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BFBdU/qC/JBeEqQAxXC/8mSkMvcnkJGGrMx58UF5tfEFboDlKW1+o1noDtxMbcHRF3fRJ5WeTt5Fy7eq02LoCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T19:29:07.614470Z"},"content_sha256":"e22c36d0820f6a3c7ddcc6f42b41f1a5c80ff6da8d5dad5bf00271124b0e0d13","schema_version":"1.0","event_id":"sha256:e22c36d0820f6a3c7ddcc6f42b41f1a5c80ff6da8d5dad5bf00271124b0e0d13"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4O2CAXDQJUC7UJGLYM55FPU2XV/bundle.json","state_url":"https://pith.science/pith/4O2CAXDQJUC7UJGLYM55FPU2XV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4O2CAXDQJUC7UJGLYM55FPU2XV/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":"2026-08-08T19:29:07Z","links":{"resolver":"https://pith.science/pith/4O2CAXDQJUC7UJGLYM55FPU2XV","bundle":"https://pith.science/pith/4O2CAXDQJUC7UJGLYM55FPU2XV/bundle.json","state":"https://pith.science/pith/4O2CAXDQJUC7UJGLYM55FPU2XV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4O2CAXDQJUC7UJGLYM55FPU2XV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:4O2CAXDQJUC7UJGLYM55FPU2XV","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":"3302b39da4ab48a71028517954e8874e0d85c15e173ed5130297329d3a7d2ad3","cross_cats_sorted":["cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-21T13:22:10Z","title_canon_sha256":"8c9de8510a517d289b93591220388857dd7dc3e50c87b3aea1a435cec9559760"},"schema_version":"1.0","source":{"id":"2012.11310","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.11310","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"2012.11310v3","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.11310","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"4O2CAXDQJUC7","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"pith_short_16","alias_value":"4O2CAXDQJUC7UJGL","created_at":"2026-07-05T02:42:13Z"},{"alias_kind":"pith_short_8","alias_value":"4O2CAXDQ","created_at":"2026-07-05T02:42:13Z"}],"graph_snapshots":[{"event_id":"sha256:e22c36d0820f6a3c7ddcc6f42b41f1a5c80ff6da8d5dad5bf00271124b0e0d13","target":"graph","created_at":"2026-07-05T02:42:13Z","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/2012.11310/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a methodology to automatically obtain Pose Space Deformation (PSD) basis for rigged garments through deep learning. Classical approaches rely on Physically Based Simulations (PBS) to animate clothes. These are general solutions that, given a sufficiently fine-grained discretization of space and time, can achieve highly realistic results. However, they are computationally expensive and any scene modification prompts the need of re-simulation. Linear Blend Skinning (LBS) with PSD offers a lightweight alternative to PBS, though, it needs huge volumes of data to learn proper PSD. We pro","authors_text":"Hugo Bertiche, Meysam Madadi, Sergio Escalera","cross_cats":["cs.GR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-21T13:22:10Z","title":"PBNS: Physically Based Neural Simulator for Unsupervised Garment Pose Space Deformation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.11310","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:a8ba01b7004b3238e1908c0f5ce343bfcd3ca37760ffc17a2cfb96834367ef24","target":"record","created_at":"2026-07-05T02:42:13Z","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":"3302b39da4ab48a71028517954e8874e0d85c15e173ed5130297329d3a7d2ad3","cross_cats_sorted":["cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-21T13:22:10Z","title_canon_sha256":"8c9de8510a517d289b93591220388857dd7dc3e50c87b3aea1a435cec9559760"},"schema_version":"1.0","source":{"id":"2012.11310","kind":"arxiv","version":3}},"canonical_sha256":"e3b4205c704d05fa24cbc33bd2be9abd7ee07bd539f3d0293688f028c7fe0e1d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3b4205c704d05fa24cbc33bd2be9abd7ee07bd539f3d0293688f028c7fe0e1d","first_computed_at":"2026-07-05T02:42:13.936818Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:42:13.936818Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Kjr15Cxd6946XKYeJE9ovQzAe6Ynp0x2KVF2lba0Qz4e5MTCDMngt48oDFr5sAY7OW62xu4GatQDDuvlav+eAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:42:13.937263Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.11310","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8ba01b7004b3238e1908c0f5ce343bfcd3ca37760ffc17a2cfb96834367ef24","sha256:e22c36d0820f6a3c7ddcc6f42b41f1a5c80ff6da8d5dad5bf00271124b0e0d13"],"state_sha256":"14350a415b87d3cac638284f51ea4d6cc59c1dd66da9c67419a5fdf3b28e21ce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y+EM6jALr2K3m+HOudiqCs9KBrSC+LP+O0qOyh2cNx/YdxQJofwFhTXH92eLXt5dF8EI6/+fRyXkJmIAxYsmCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T19:29:07.618856Z","bundle_sha256":"61d34a60246b6a7073dd92ab86fd0d5210610af3ae0c91d13c630e4832a63fb5"}}