{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:FJZESD2JGAQ5QAXWZ5MDKU4I6V","short_pith_number":"pith:FJZESD2J","canonical_record":{"source":{"id":"2112.12867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-23T22:27:55Z","cross_cats_sorted":[],"title_canon_sha256":"52574af268b0152edc6c813fc4f550b1decd050621d5cbecd2ea8ce70888d402","abstract_canon_sha256":"f626b259fa1b52276f3744a9f0279f4cb425d2cba24cdb3979c1910be2094e14"},"schema_version":"1.0"},"canonical_sha256":"2a72490f493021d802f6cf58355388f5429d8a1a080cb88751d18fde681fa8a7","source":{"kind":"arxiv","id":"2112.12867","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.12867","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"arxiv_version","alias_value":"2112.12867v2","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.12867","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"pith_short_12","alias_value":"FJZESD2JGAQ5","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"pith_short_16","alias_value":"FJZESD2JGAQ5QAXW","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"pith_short_8","alias_value":"FJZESD2J","created_at":"2026-07-05T03:46:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:FJZESD2JGAQ5QAXWZ5MDKU4I6V","target":"record","payload":{"canonical_record":{"source":{"id":"2112.12867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-23T22:27:55Z","cross_cats_sorted":[],"title_canon_sha256":"52574af268b0152edc6c813fc4f550b1decd050621d5cbecd2ea8ce70888d402","abstract_canon_sha256":"f626b259fa1b52276f3744a9f0279f4cb425d2cba24cdb3979c1910be2094e14"},"schema_version":"1.0"},"canonical_sha256":"2a72490f493021d802f6cf58355388f5429d8a1a080cb88751d18fde681fa8a7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:46:26.003776Z","signature_b64":"xOwebAa1CLEhB249XPwESyggBjiMKYHX8QWVbN/mRLntrflFEpu9eoWhSkTQXsQDOijhnGcCVE53d9TZR9LsBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a72490f493021d802f6cf58355388f5429d8a1a080cb88751d18fde681fa8a7","last_reissued_at":"2026-07-05T03:46:26.003283Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:46:26.003283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.12867","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":"2026-07-05T03:46:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UBiuaS04ll6hwjCY1hSVmSMxR6maLh06inCmdipXQIGBhAN1eRS2Agl+CLapKmllWLeooyinCQHPTiO6oEyiDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T19:21:22.406069Z"},"content_sha256":"9c394cf25b35ced73a2b17eaed99bec52a7ce2834bbec511cf6c2c4b3175b608","schema_version":"1.0","event_id":"sha256:9c394cf25b35ced73a2b17eaed99bec52a7ce2834bbec511cf6c2c4b3175b608"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:FJZESD2JGAQ5QAXWZ5MDKU4I6V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HSPACE: Synthetic Parametric Humans Animated in Complex Environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Andrei Zanfir, Cristian Sminchisescu, Eduard Gabriel Bazavan, Mihai Zanfir, Rahul Sukthankar, William T. Freeman","submitted_at":"2021-12-23T22:27:55Z","abstract_excerpt":"Advances in the state of the art for 3d human sensing are currently limited by the lack of visual datasets with 3d ground truth, including multiple people, in motion, operating in real-world environments, with complex illumination or occlusion, and potentially observed by a moving camera. Sophisticated scene understanding would require estimating human pose and shape as well as gestures, towards representations that ultimately combine useful metric and behavioral signals with free-viewpoint photo-realistic visualisation capabilities. To sustain progress, we build a large-scale photo-realistic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.12867","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/2112.12867/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":"2026-07-05T03:46:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hPf8D+Ms8/watesb1rVIfEx3WK7jwL2AR7BUMulOd4r06z8st3V1TBVT6n0AGuprdhUXX6LLWO9oqnhUHQh3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T19:21:22.406553Z"},"content_sha256":"140e6b5fc2a733db77d996ab9bbe4346b73d9117858f195865e74597d618e024","schema_version":"1.0","event_id":"sha256:140e6b5fc2a733db77d996ab9bbe4346b73d9117858f195865e74597d618e024"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FJZESD2JGAQ5QAXWZ5MDKU4I6V/bundle.json","state_url":"https://pith.science/pith/FJZESD2JGAQ5QAXWZ5MDKU4I6V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FJZESD2JGAQ5QAXWZ5MDKU4I6V/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":"2026-08-08T19:21:22Z","links":{"resolver":"https://pith.science/pith/FJZESD2JGAQ5QAXWZ5MDKU4I6V","bundle":"https://pith.science/pith/FJZESD2JGAQ5QAXWZ5MDKU4I6V/bundle.json","state":"https://pith.science/pith/FJZESD2JGAQ5QAXWZ5MDKU4I6V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FJZESD2JGAQ5QAXWZ5MDKU4I6V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:FJZESD2JGAQ5QAXWZ5MDKU4I6V","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":"f626b259fa1b52276f3744a9f0279f4cb425d2cba24cdb3979c1910be2094e14","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-23T22:27:55Z","title_canon_sha256":"52574af268b0152edc6c813fc4f550b1decd050621d5cbecd2ea8ce70888d402"},"schema_version":"1.0","source":{"id":"2112.12867","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.12867","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"arxiv_version","alias_value":"2112.12867v2","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.12867","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"pith_short_12","alias_value":"FJZESD2JGAQ5","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"pith_short_16","alias_value":"FJZESD2JGAQ5QAXW","created_at":"2026-07-05T03:46:26Z"},{"alias_kind":"pith_short_8","alias_value":"FJZESD2J","created_at":"2026-07-05T03:46:26Z"}],"graph_snapshots":[{"event_id":"sha256:140e6b5fc2a733db77d996ab9bbe4346b73d9117858f195865e74597d618e024","target":"graph","created_at":"2026-07-05T03:46:26Z","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/2112.12867/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Advances in the state of the art for 3d human sensing are currently limited by the lack of visual datasets with 3d ground truth, including multiple people, in motion, operating in real-world environments, with complex illumination or occlusion, and potentially observed by a moving camera. Sophisticated scene understanding would require estimating human pose and shape as well as gestures, towards representations that ultimately combine useful metric and behavioral signals with free-viewpoint photo-realistic visualisation capabilities. To sustain progress, we build a large-scale photo-realistic ","authors_text":"Andrei Zanfir, Cristian Sminchisescu, Eduard Gabriel Bazavan, Mihai Zanfir, Rahul Sukthankar, William T. Freeman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-23T22:27:55Z","title":"HSPACE: Synthetic Parametric Humans Animated in Complex Environments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.12867","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":"sha256:9c394cf25b35ced73a2b17eaed99bec52a7ce2834bbec511cf6c2c4b3175b608","target":"record","created_at":"2026-07-05T03:46:26Z","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":"f626b259fa1b52276f3744a9f0279f4cb425d2cba24cdb3979c1910be2094e14","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-12-23T22:27:55Z","title_canon_sha256":"52574af268b0152edc6c813fc4f550b1decd050621d5cbecd2ea8ce70888d402"},"schema_version":"1.0","source":{"id":"2112.12867","kind":"arxiv","version":2}},"canonical_sha256":"2a72490f493021d802f6cf58355388f5429d8a1a080cb88751d18fde681fa8a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a72490f493021d802f6cf58355388f5429d8a1a080cb88751d18fde681fa8a7","first_computed_at":"2026-07-05T03:46:26.003283Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:46:26.003283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xOwebAa1CLEhB249XPwESyggBjiMKYHX8QWVbN/mRLntrflFEpu9eoWhSkTQXsQDOijhnGcCVE53d9TZR9LsBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:46:26.003776Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.12867","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c394cf25b35ced73a2b17eaed99bec52a7ce2834bbec511cf6c2c4b3175b608","sha256:140e6b5fc2a733db77d996ab9bbe4346b73d9117858f195865e74597d618e024"],"state_sha256":"c0e90cce1f1e9028b3326f212fbb127ba6f29c3c531cf6ab6809c9945bd3f524"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1+vSgBuiguBglMryShC3O+5yhxT3e0JiVXILvkwQ2mpag1b+kjjdG8h2ormu2mSF9b6mH2Xkht8NPnFJIDd+AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T19:21:22.409808Z","bundle_sha256":"aab6851b0f74bd87af754dd71c654107b2a1e9b09009746ff3675ac3363baf9f"}}