{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CEUETINBWIQUJK3IP5X72DUVZB","short_pith_number":"pith:CEUETINB","canonical_record":{"source":{"id":"1512.04134","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-12-13T22:58:55Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"7f87cfc591178dab91fe059b66b6e9207055f86f0c348e02354e30495d2ca26b","abstract_canon_sha256":"89beef8d82f4864cf90f88b31c62c6f1dfeb497f5fbf3673cf70fa0e56faf3c1"},"schema_version":"1.0"},"canonical_sha256":"112849a1a1b22144ab687f6ffd0e95c87807518581c7e222113a243e2c0dbc92","source":{"kind":"arxiv","id":"1512.04134","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04134","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04134v1","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04134","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"pith_short_12","alias_value":"CEUETINBWIQU","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CEUETINBWIQUJK3I","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CEUETINB","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CEUETINBWIQUJK3IP5X72DUVZB","target":"record","payload":{"canonical_record":{"source":{"id":"1512.04134","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-12-13T22:58:55Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"7f87cfc591178dab91fe059b66b6e9207055f86f0c348e02354e30495d2ca26b","abstract_canon_sha256":"89beef8d82f4864cf90f88b31c62c6f1dfeb497f5fbf3673cf70fa0e56faf3c1"},"schema_version":"1.0"},"canonical_sha256":"112849a1a1b22144ab687f6ffd0e95c87807518581c7e222113a243e2c0dbc92","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:34.419171Z","signature_b64":"yuBpwoDKjMbXBuwTlzjJvJGGMki8+kpThPjPwc+mif/fPNiK1vI8qm6GABlgBKrXcQXFkfXXx0Wg/wJmFJY+Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"112849a1a1b22144ab687f6ffd0e95c87807518581c7e222113a243e2c0dbc92","last_reissued_at":"2026-05-18T00:58:34.418476Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:34.418476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.04134","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":"2026-05-18T00:58:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uRDx0EMLH2KPx2bb4OSZIUuyfVhbDHst0Lyi6FgBORdKcIip7zmtGJ6FaSU4JEQSjg/qDFZrvp3j5D/ex1YfAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:56:03.584533Z"},"content_sha256":"4276977407c824bcba8a95cfb6f55c13f47196f6f31222175974c04e2a5ab027","schema_version":"1.0","event_id":"sha256:4276977407c824bcba8a95cfb6f55c13f47196f6f31222175974c04e2a5ab027"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CEUETINBWIQUJK3IP5X72DUVZB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evaluation of Pose Tracking Accuracy in the First and Second Generations of Microsoft Kinect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CV","authors_text":"Ferda Ofli, Gregorij Kurillo, Qifei Wang, Ruzena Bajcsy","submitted_at":"2015-12-13T22:58:55Z","abstract_excerpt":"Microsoft Kinect camera and its skeletal tracking capabilities have been embraced by many researchers and commercial developers in various applications of real-time human movement analysis. In this paper, we evaluate the accuracy of the human kinematic motion data in the first and second generation of the Kinect system, and compare the results with an optical motion capture system. We collected motion data in 12 exercises for 10 different subjects and from three different viewpoints. We report on the accuracy of the joint localization and bone length estimation of Kinect skeletons in compariso"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04134","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":""},"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":"2026-05-18T00:58:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bzag8O6EK/JYgqShxS0+xxMLzr2MV3Lc8UB0jRDYNoMACQ4fsAmK6GZBI0mcLvYlaLuLEx/5S1tWMa37vOjoDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:56:03.585211Z"},"content_sha256":"2c010e77f11a5a5588de0ae2b0118405ccb020df48fd69575bbb12afeabc3027","schema_version":"1.0","event_id":"sha256:2c010e77f11a5a5588de0ae2b0118405ccb020df48fd69575bbb12afeabc3027"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CEUETINBWIQUJK3IP5X72DUVZB/bundle.json","state_url":"https://pith.science/pith/CEUETINBWIQUJK3IP5X72DUVZB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CEUETINBWIQUJK3IP5X72DUVZB/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":"2026-05-27T14:56:03Z","links":{"resolver":"https://pith.science/pith/CEUETINBWIQUJK3IP5X72DUVZB","bundle":"https://pith.science/pith/CEUETINBWIQUJK3IP5X72DUVZB/bundle.json","state":"https://pith.science/pith/CEUETINBWIQUJK3IP5X72DUVZB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CEUETINBWIQUJK3IP5X72DUVZB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CEUETINBWIQUJK3IP5X72DUVZB","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":"89beef8d82f4864cf90f88b31c62c6f1dfeb497f5fbf3673cf70fa0e56faf3c1","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-12-13T22:58:55Z","title_canon_sha256":"7f87cfc591178dab91fe059b66b6e9207055f86f0c348e02354e30495d2ca26b"},"schema_version":"1.0","source":{"id":"1512.04134","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04134","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04134v1","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04134","created_at":"2026-05-18T00:58:34Z"},{"alias_kind":"pith_short_12","alias_value":"CEUETINBWIQU","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CEUETINBWIQUJK3I","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CEUETINB","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:2c010e77f11a5a5588de0ae2b0118405ccb020df48fd69575bbb12afeabc3027","target":"graph","created_at":"2026-05-18T00:58:34Z","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"},"paper":{"abstract_excerpt":"Microsoft Kinect camera and its skeletal tracking capabilities have been embraced by many researchers and commercial developers in various applications of real-time human movement analysis. In this paper, we evaluate the accuracy of the human kinematic motion data in the first and second generation of the Kinect system, and compare the results with an optical motion capture system. We collected motion data in 12 exercises for 10 different subjects and from three different viewpoints. We report on the accuracy of the joint localization and bone length estimation of Kinect skeletons in compariso","authors_text":"Ferda Ofli, Gregorij Kurillo, Qifei Wang, Ruzena Bajcsy","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-12-13T22:58:55Z","title":"Evaluation of Pose Tracking Accuracy in the First and Second Generations of Microsoft Kinect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04134","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":"sha256:4276977407c824bcba8a95cfb6f55c13f47196f6f31222175974c04e2a5ab027","target":"record","created_at":"2026-05-18T00:58:34Z","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":"89beef8d82f4864cf90f88b31c62c6f1dfeb497f5fbf3673cf70fa0e56faf3c1","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-12-13T22:58:55Z","title_canon_sha256":"7f87cfc591178dab91fe059b66b6e9207055f86f0c348e02354e30495d2ca26b"},"schema_version":"1.0","source":{"id":"1512.04134","kind":"arxiv","version":1}},"canonical_sha256":"112849a1a1b22144ab687f6ffd0e95c87807518581c7e222113a243e2c0dbc92","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"112849a1a1b22144ab687f6ffd0e95c87807518581c7e222113a243e2c0dbc92","first_computed_at":"2026-05-18T00:58:34.418476Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:34.418476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yuBpwoDKjMbXBuwTlzjJvJGGMki8+kpThPjPwc+mif/fPNiK1vI8qm6GABlgBKrXcQXFkfXXx0Wg/wJmFJY+Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:34.419171Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.04134","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4276977407c824bcba8a95cfb6f55c13f47196f6f31222175974c04e2a5ab027","sha256:2c010e77f11a5a5588de0ae2b0118405ccb020df48fd69575bbb12afeabc3027"],"state_sha256":"8334371d7238447b02e1e7038be7ea85c0110e08bd0b9f308ce1761f52673583"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9GIFoTN8xIfUlp2H6CZQ50dXfdeF86iURpWvEWX1T1XBQYyx4IMDutUzWWNWCpCPXHOu84Pw02poNKDf7VmjAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T14:56:03.588875Z","bundle_sha256":"4d1c70679f6015899795abf5a927b717efe209a1b063a2e7bb6dfaf18700126e"}}