{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:NEQM3QQLVP2WN2VTX4HW6XPQTP","short_pith_number":"pith:NEQM3QQL","canonical_record":{"source":{"id":"2209.05612","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-09-12T21:03:25Z","cross_cats_sorted":[],"title_canon_sha256":"938b12d9025d30aaad4ee9fbfe25acf2decc648a90a2a594ab4fea8982313a9a","abstract_canon_sha256":"171bf56d5cb053ceb0993faf993f4ad024cd6b1f83835886f365537d49d3daba"},"schema_version":"1.0"},"canonical_sha256":"6920cdc20babf566eab3bf0f6f5df09bc5b142271784eb60f47172d59f785967","source":{"kind":"arxiv","id":"2209.05612","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.05612","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"arxiv_version","alias_value":"2209.05612v1","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.05612","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"pith_short_12","alias_value":"NEQM3QQLVP2W","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"pith_short_16","alias_value":"NEQM3QQLVP2WN2VT","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"pith_short_8","alias_value":"NEQM3QQL","created_at":"2026-07-05T04:56:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:NEQM3QQLVP2WN2VTX4HW6XPQTP","target":"record","payload":{"canonical_record":{"source":{"id":"2209.05612","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-09-12T21:03:25Z","cross_cats_sorted":[],"title_canon_sha256":"938b12d9025d30aaad4ee9fbfe25acf2decc648a90a2a594ab4fea8982313a9a","abstract_canon_sha256":"171bf56d5cb053ceb0993faf993f4ad024cd6b1f83835886f365537d49d3daba"},"schema_version":"1.0"},"canonical_sha256":"6920cdc20babf566eab3bf0f6f5df09bc5b142271784eb60f47172d59f785967","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:56:48.096467Z","signature_b64":"HTykuJ03nem4dg43TVsFZVroP5kB3lzHBtcHFrArK0jkJ5iW03/1gy6CNtOYGADCoev52hFLWa+SfQ09BRTeAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6920cdc20babf566eab3bf0f6f5df09bc5b142271784eb60f47172d59f785967","last_reissued_at":"2026-07-05T04:56:48.096045Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:56:48.096045Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.05612","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":"2026-07-05T04:56:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8PMh7nA13a8ZxdA+saO4mKXvaVOG51AvjTq0hfp7cjPbRfWmKRNiatGDc23lyYBfgWMv4iqNklO2LjyqXLZjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T17:26:08.600514Z"},"content_sha256":"9f0099a7b47f23cb357915e116813b70ad708e4baba075396a4cc68414d59564","schema_version":"1.0","event_id":"sha256:9f0099a7b47f23cb357915e116813b70ad708e4baba075396a4cc68414d59564"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:NEQM3QQLVP2WN2VTX4HW6XPQTP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Articulated 3D Human-Object Interactions from RGB Videos: An Empirical Analysis of Approaches and Challenges","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Angel X. Chang, Hanxiao Jiang, Manolis Savva, Sanjay Haresh, Xiaohao Sun","submitted_at":"2022-09-12T21:03:25Z","abstract_excerpt":"Human-object interactions with articulated objects are common in everyday life. Despite much progress in single-view 3D reconstruction, it is still challenging to infer an articulated 3D object model from an RGB video showing a person manipulating the object. We canonicalize the task of articulated 3D human-object interaction reconstruction from RGB video, and carry out a systematic benchmark of five families of methods for this task: 3D plane estimation, 3D cuboid estimation, CAD model fitting, implicit field fitting, and free-form mesh fitting. Our experiments show that all methods struggle "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.05612","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/2209.05612/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":"2026-07-05T04:56:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vfdlC3FkL84hRBUA8HVidpiZH+1C6eR0Qs76RR8iTo1SZ8MmzwEuzaik5fGoZvKp98nHraSt9jz0onOLE0HvDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T17:26:08.600885Z"},"content_sha256":"7f599b0ca79154ece5a5afa05ad695d53b3781dac1f76d60fba07838a1a268b1","schema_version":"1.0","event_id":"sha256:7f599b0ca79154ece5a5afa05ad695d53b3781dac1f76d60fba07838a1a268b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NEQM3QQLVP2WN2VTX4HW6XPQTP/bundle.json","state_url":"https://pith.science/pith/NEQM3QQLVP2WN2VTX4HW6XPQTP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NEQM3QQLVP2WN2VTX4HW6XPQTP/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":"2026-07-10T17:26:08Z","links":{"resolver":"https://pith.science/pith/NEQM3QQLVP2WN2VTX4HW6XPQTP","bundle":"https://pith.science/pith/NEQM3QQLVP2WN2VTX4HW6XPQTP/bundle.json","state":"https://pith.science/pith/NEQM3QQLVP2WN2VTX4HW6XPQTP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NEQM3QQLVP2WN2VTX4HW6XPQTP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:NEQM3QQLVP2WN2VTX4HW6XPQTP","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":"171bf56d5cb053ceb0993faf993f4ad024cd6b1f83835886f365537d49d3daba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-09-12T21:03:25Z","title_canon_sha256":"938b12d9025d30aaad4ee9fbfe25acf2decc648a90a2a594ab4fea8982313a9a"},"schema_version":"1.0","source":{"id":"2209.05612","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.05612","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"arxiv_version","alias_value":"2209.05612v1","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.05612","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"pith_short_12","alias_value":"NEQM3QQLVP2W","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"pith_short_16","alias_value":"NEQM3QQLVP2WN2VT","created_at":"2026-07-05T04:56:48Z"},{"alias_kind":"pith_short_8","alias_value":"NEQM3QQL","created_at":"2026-07-05T04:56:48Z"}],"graph_snapshots":[{"event_id":"sha256:7f599b0ca79154ece5a5afa05ad695d53b3781dac1f76d60fba07838a1a268b1","target":"graph","created_at":"2026-07-05T04:56:48Z","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/2209.05612/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Human-object interactions with articulated objects are common in everyday life. Despite much progress in single-view 3D reconstruction, it is still challenging to infer an articulated 3D object model from an RGB video showing a person manipulating the object. We canonicalize the task of articulated 3D human-object interaction reconstruction from RGB video, and carry out a systematic benchmark of five families of methods for this task: 3D plane estimation, 3D cuboid estimation, CAD model fitting, implicit field fitting, and free-form mesh fitting. Our experiments show that all methods struggle ","authors_text":"Angel X. Chang, Hanxiao Jiang, Manolis Savva, Sanjay Haresh, Xiaohao Sun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-09-12T21:03:25Z","title":"Articulated 3D Human-Object Interactions from RGB Videos: An Empirical Analysis of Approaches and Challenges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.05612","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":"sha256:9f0099a7b47f23cb357915e116813b70ad708e4baba075396a4cc68414d59564","target":"record","created_at":"2026-07-05T04:56:48Z","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":"171bf56d5cb053ceb0993faf993f4ad024cd6b1f83835886f365537d49d3daba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-09-12T21:03:25Z","title_canon_sha256":"938b12d9025d30aaad4ee9fbfe25acf2decc648a90a2a594ab4fea8982313a9a"},"schema_version":"1.0","source":{"id":"2209.05612","kind":"arxiv","version":1}},"canonical_sha256":"6920cdc20babf566eab3bf0f6f5df09bc5b142271784eb60f47172d59f785967","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6920cdc20babf566eab3bf0f6f5df09bc5b142271784eb60f47172d59f785967","first_computed_at":"2026-07-05T04:56:48.096045Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:56:48.096045Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HTykuJ03nem4dg43TVsFZVroP5kB3lzHBtcHFrArK0jkJ5iW03/1gy6CNtOYGADCoev52hFLWa+SfQ09BRTeAg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:56:48.096467Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.05612","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f0099a7b47f23cb357915e116813b70ad708e4baba075396a4cc68414d59564","sha256:7f599b0ca79154ece5a5afa05ad695d53b3781dac1f76d60fba07838a1a268b1"],"state_sha256":"dd1c9919e6c4dc5d97672b35aa9a5e9fb9410c9bb16bac5da61eb0b0fa80e023"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SvNXz73L2874waeQD/dJdMqCVYLv0ckksEYA4yn8E/LBbmK5gzGT3AEn4ta0JDWbg7sjXnGYPQa3J/KVg8cyDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-10T17:26:08.603248Z","bundle_sha256":"ac68c718cc25c961d30724ad23557285c587bf7ee608f0fe61fdb0308b0234f7"}}