{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:HYG73EFJOKUJTYCXEEPMPQB6OZ","short_pith_number":"pith:HYG73EFJ","canonical_record":{"source":{"id":"2505.15800","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-21T17:53:47Z","cross_cats_sorted":[],"title_canon_sha256":"c1d2af8d075745c6656e78f63dd7a6029c60f66e8cc8fb9d815a14cc5a82a584","abstract_canon_sha256":"9cb1e0504b738231b21df0369c14bde9cf0878446c785c3ad3f626c7af4e9874"},"schema_version":"1.0"},"canonical_sha256":"3e0dfd90a972a899e057211ec7c03e7654ad38f3d54eec3235727c2161b8d232","source":{"kind":"arxiv","id":"2505.15800","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.15800","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"2505.15800v2","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.15800","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"HYG73EFJOKUJ","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"pith_short_16","alias_value":"HYG73EFJOKUJTYCX","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"pith_short_8","alias_value":"HYG73EFJ","created_at":"2026-07-05T11:09:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:HYG73EFJOKUJTYCXEEPMPQB6OZ","target":"record","payload":{"canonical_record":{"source":{"id":"2505.15800","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-21T17:53:47Z","cross_cats_sorted":[],"title_canon_sha256":"c1d2af8d075745c6656e78f63dd7a6029c60f66e8cc8fb9d815a14cc5a82a584","abstract_canon_sha256":"9cb1e0504b738231b21df0369c14bde9cf0878446c785c3ad3f626c7af4e9874"},"schema_version":"1.0"},"canonical_sha256":"3e0dfd90a972a899e057211ec7c03e7654ad38f3d54eec3235727c2161b8d232","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:09:14.750843Z","signature_b64":"Jl48WB6hX66RL3s4SiROXedt5IkZXIQhXqkBs+1yYfAXo0hl1JRNqb8NAcVXQNlzxKHEJN7mqNURxERMwwGyDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e0dfd90a972a899e057211ec7c03e7654ad38f3d54eec3235727c2161b8d232","last_reissued_at":"2026-07-05T11:09:14.750254Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:09:14.750254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.15800","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":"2026-07-05T11:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ia5Zo4vfNX4+QrlgtGTPHFGohMGZXE+WcTlCzLHoaB7jYIOxjUOlAmLKELisRe6NVVWqgt8z2t18wZUbuXUaCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:45:05.724236Z"},"content_sha256":"561308a707cf58f29532d404574adcf98e274653fcd739dde6c6fa8ec4de8cc8","schema_version":"1.0","event_id":"sha256:561308a707cf58f29532d404574adcf98e274653fcd739dde6c6fa8ec4de8cc8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:HYG73EFJOKUJTYCXEEPMPQB6OZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interspatial Attention for Efficient 4D Human Video Generation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Ceyuan Yang, Changan Chen, Gordon Wetzstein, Ruizhi Shao, Yang Zheng, Yebin Liu, Yinghao Xu, Yujun Shen","submitted_at":"2025-05-21T17:53:47Z","abstract_excerpt":"Generating photorealistic videos of digital humans in a controllable manner is crucial for a plethora of applications. Existing approaches either build on methods that employ template-based 3D representations or emerging video generation models but suffer from poor quality or limited consistency and identity preservation when generating individual or multiple digital humans. In this paper, we introduce a new interspatial attention (ISA) mechanism as a scalable building block for modern diffusion transformer (DiT)--based video generation models. ISA is a new type of cross attention that uses re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.15800","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/2505.15800/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":"2026-07-05T11:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hxKVpHU1/CzgwXV9RwARRumQiR3ZL2cQ6PMHoPyiybHEKGdm7+E1W1n3Xx/FULKFBk71I98f9CZheKwgsUCrBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:45:05.724650Z"},"content_sha256":"76e8c19dd1f7161877eff2823931fc4d4019a25b655ec6a7b1dbb5f75ff655c5","schema_version":"1.0","event_id":"sha256:76e8c19dd1f7161877eff2823931fc4d4019a25b655ec6a7b1dbb5f75ff655c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HYG73EFJOKUJTYCXEEPMPQB6OZ/bundle.json","state_url":"https://pith.science/pith/HYG73EFJOKUJTYCXEEPMPQB6OZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HYG73EFJOKUJTYCXEEPMPQB6OZ/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":"2026-08-07T22:45:05Z","links":{"resolver":"https://pith.science/pith/HYG73EFJOKUJTYCXEEPMPQB6OZ","bundle":"https://pith.science/pith/HYG73EFJOKUJTYCXEEPMPQB6OZ/bundle.json","state":"https://pith.science/pith/HYG73EFJOKUJTYCXEEPMPQB6OZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HYG73EFJOKUJTYCXEEPMPQB6OZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:HYG73EFJOKUJTYCXEEPMPQB6OZ","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":"9cb1e0504b738231b21df0369c14bde9cf0878446c785c3ad3f626c7af4e9874","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-21T17:53:47Z","title_canon_sha256":"c1d2af8d075745c6656e78f63dd7a6029c60f66e8cc8fb9d815a14cc5a82a584"},"schema_version":"1.0","source":{"id":"2505.15800","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.15800","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"2505.15800v2","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.15800","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"HYG73EFJOKUJ","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"pith_short_16","alias_value":"HYG73EFJOKUJTYCX","created_at":"2026-07-05T11:09:14Z"},{"alias_kind":"pith_short_8","alias_value":"HYG73EFJ","created_at":"2026-07-05T11:09:14Z"}],"graph_snapshots":[{"event_id":"sha256:76e8c19dd1f7161877eff2823931fc4d4019a25b655ec6a7b1dbb5f75ff655c5","target":"graph","created_at":"2026-07-05T11:09:14Z","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/2505.15800/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Generating photorealistic videos of digital humans in a controllable manner is crucial for a plethora of applications. Existing approaches either build on methods that employ template-based 3D representations or emerging video generation models but suffer from poor quality or limited consistency and identity preservation when generating individual or multiple digital humans. In this paper, we introduce a new interspatial attention (ISA) mechanism as a scalable building block for modern diffusion transformer (DiT)--based video generation models. ISA is a new type of cross attention that uses re","authors_text":"Ceyuan Yang, Changan Chen, Gordon Wetzstein, Ruizhi Shao, Yang Zheng, Yebin Liu, Yinghao Xu, Yujun Shen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-21T17:53:47Z","title":"Interspatial Attention for Efficient 4D Human Video Generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.15800","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":"sha256:561308a707cf58f29532d404574adcf98e274653fcd739dde6c6fa8ec4de8cc8","target":"record","created_at":"2026-07-05T11:09:14Z","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":"9cb1e0504b738231b21df0369c14bde9cf0878446c785c3ad3f626c7af4e9874","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-21T17:53:47Z","title_canon_sha256":"c1d2af8d075745c6656e78f63dd7a6029c60f66e8cc8fb9d815a14cc5a82a584"},"schema_version":"1.0","source":{"id":"2505.15800","kind":"arxiv","version":2}},"canonical_sha256":"3e0dfd90a972a899e057211ec7c03e7654ad38f3d54eec3235727c2161b8d232","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e0dfd90a972a899e057211ec7c03e7654ad38f3d54eec3235727c2161b8d232","first_computed_at":"2026-07-05T11:09:14.750254Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:09:14.750254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jl48WB6hX66RL3s4SiROXedt5IkZXIQhXqkBs+1yYfAXo0hl1JRNqb8NAcVXQNlzxKHEJN7mqNURxERMwwGyDw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:09:14.750843Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.15800","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:561308a707cf58f29532d404574adcf98e274653fcd739dde6c6fa8ec4de8cc8","sha256:76e8c19dd1f7161877eff2823931fc4d4019a25b655ec6a7b1dbb5f75ff655c5"],"state_sha256":"fe31f816cb61c2087c32e6bad26f1c21277cb2bc9903baacca3d38233ed7cb83"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3vqiRdCold6jD6+3HwaN3VctP+PXkoOki2icSRFs2/yPBM75MbuPtriBI1cYjdyeY3ByHZgO0kzsZTPMmmnsDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T22:45:05.727537Z","bundle_sha256":"6bec8d4fa1a34b71eee481706b29f8c7e6cf1ed0d9a6f718a3502c6ec7108d0c"}}