{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:4WQTADEHNPSYXJ6PBC7RQFCA74","short_pith_number":"pith:4WQTADEH","canonical_record":{"source":{"id":"2110.08913","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2021-10-17T20:10:57Z","cross_cats_sorted":[],"title_canon_sha256":"03240ed9d2685e5c488b7b6c58320b6bceaaf7adb93978442057cb5eb895a147","abstract_canon_sha256":"07f5de200414b53a8853c2a645c37320b5968d898406f5322c27214556e390af"},"schema_version":"1.0"},"canonical_sha256":"e5a1300c876be58ba7cf08bf181440ff02a6032580a262f2d2cbde99501f315a","source":{"kind":"arxiv","id":"2110.08913","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.08913","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"arxiv_version","alias_value":"2110.08913v2","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.08913","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"pith_short_12","alias_value":"4WQTADEHNPSY","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"pith_short_16","alias_value":"4WQTADEHNPSYXJ6P","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"pith_short_8","alias_value":"4WQTADEH","created_at":"2026-07-05T03:24:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:4WQTADEHNPSYXJ6PBC7RQFCA74","target":"record","payload":{"canonical_record":{"source":{"id":"2110.08913","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2021-10-17T20:10:57Z","cross_cats_sorted":[],"title_canon_sha256":"03240ed9d2685e5c488b7b6c58320b6bceaaf7adb93978442057cb5eb895a147","abstract_canon_sha256":"07f5de200414b53a8853c2a645c37320b5968d898406f5322c27214556e390af"},"schema_version":"1.0"},"canonical_sha256":"e5a1300c876be58ba7cf08bf181440ff02a6032580a262f2d2cbde99501f315a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:24:45.695533Z","signature_b64":"jKVwxj1TQWTzp4AlLbGYNrqcTzThW8NxIqQGRix9k0xgmEMfBD68SS4764x/Ko8YOxeHeE4zN1WIaLvwCxe2AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e5a1300c876be58ba7cf08bf181440ff02a6032580a262f2d2cbde99501f315a","last_reissued_at":"2026-07-05T03:24:45.695011Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:24:45.695011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2110.08913","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":"2026-07-05T03:24:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DCscafkYnE6GJosbJAgA7bBimOITRDcPH7R0myl2uPJSngzzKfv1XWB/pGNWbTiowCWuor/dCVIYPX4IaMj2Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T05:54:50.201589Z"},"content_sha256":"45a2c86d609bc70a11cc49e75ac26a07fcbf741f893bbbfebfd48c045a825b8a","schema_version":"1.0","event_id":"sha256:45a2c86d609bc70a11cc49e75ac26a07fcbf741f893bbbfebfd48c045a825b8a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:4WQTADEHNPSYXJ6PBC7RQFCA74","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Real Time Cluster Path Tracing","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Feng Xie, Petro Mishchuk, Warren Hunt","submitted_at":"2021-10-17T20:10:57Z","abstract_excerpt":"Photorealistic rendering effects are common in films, but most real time graphics today still rely on scan-line based multi-pass rendering to deliver rich visual experiences. While there have been prior works in distributed path tracing for static scene and objects under rigid motion, real time path tracing of deforming characters has to support per-frame dynamic BVH changes. We present the architecture and implementation of the first real-time production quality cluster path tracing renderer that supports film quality animation and deformation. We build our cluster path tracing system using t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.08913","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/2110.08913/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":"2026-07-05T03:24:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MbnjLjFeKYGHSXeEkq1HPPtZvcYYJGkyzZ7erYSf8ntA3q777WKap1Em3BhBLnQ0cVdkEuNwRvnesG2ujQ6VCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T05:54:50.201953Z"},"content_sha256":"013c2c4c3375bab889ec52169b79899d168ef94d331afb39f7ccf51602c6b07d","schema_version":"1.0","event_id":"sha256:013c2c4c3375bab889ec52169b79899d168ef94d331afb39f7ccf51602c6b07d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4WQTADEHNPSYXJ6PBC7RQFCA74/bundle.json","state_url":"https://pith.science/pith/4WQTADEHNPSYXJ6PBC7RQFCA74/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4WQTADEHNPSYXJ6PBC7RQFCA74/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":"2026-07-22T05:54:50Z","links":{"resolver":"https://pith.science/pith/4WQTADEHNPSYXJ6PBC7RQFCA74","bundle":"https://pith.science/pith/4WQTADEHNPSYXJ6PBC7RQFCA74/bundle.json","state":"https://pith.science/pith/4WQTADEHNPSYXJ6PBC7RQFCA74/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4WQTADEHNPSYXJ6PBC7RQFCA74/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:4WQTADEHNPSYXJ6PBC7RQFCA74","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":"07f5de200414b53a8853c2a645c37320b5968d898406f5322c27214556e390af","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2021-10-17T20:10:57Z","title_canon_sha256":"03240ed9d2685e5c488b7b6c58320b6bceaaf7adb93978442057cb5eb895a147"},"schema_version":"1.0","source":{"id":"2110.08913","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.08913","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"arxiv_version","alias_value":"2110.08913v2","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.08913","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"pith_short_12","alias_value":"4WQTADEHNPSY","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"pith_short_16","alias_value":"4WQTADEHNPSYXJ6P","created_at":"2026-07-05T03:24:45Z"},{"alias_kind":"pith_short_8","alias_value":"4WQTADEH","created_at":"2026-07-05T03:24:45Z"}],"graph_snapshots":[{"event_id":"sha256:013c2c4c3375bab889ec52169b79899d168ef94d331afb39f7ccf51602c6b07d","target":"graph","created_at":"2026-07-05T03:24:45Z","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/2110.08913/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Photorealistic rendering effects are common in films, but most real time graphics today still rely on scan-line based multi-pass rendering to deliver rich visual experiences. While there have been prior works in distributed path tracing for static scene and objects under rigid motion, real time path tracing of deforming characters has to support per-frame dynamic BVH changes. We present the architecture and implementation of the first real-time production quality cluster path tracing renderer that supports film quality animation and deformation. We build our cluster path tracing system using t","authors_text":"Feng Xie, Petro Mishchuk, Warren Hunt","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2021-10-17T20:10:57Z","title":"Real Time Cluster Path Tracing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.08913","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":"sha256:45a2c86d609bc70a11cc49e75ac26a07fcbf741f893bbbfebfd48c045a825b8a","target":"record","created_at":"2026-07-05T03:24:45Z","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":"07f5de200414b53a8853c2a645c37320b5968d898406f5322c27214556e390af","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2021-10-17T20:10:57Z","title_canon_sha256":"03240ed9d2685e5c488b7b6c58320b6bceaaf7adb93978442057cb5eb895a147"},"schema_version":"1.0","source":{"id":"2110.08913","kind":"arxiv","version":2}},"canonical_sha256":"e5a1300c876be58ba7cf08bf181440ff02a6032580a262f2d2cbde99501f315a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5a1300c876be58ba7cf08bf181440ff02a6032580a262f2d2cbde99501f315a","first_computed_at":"2026-07-05T03:24:45.695011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:24:45.695011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jKVwxj1TQWTzp4AlLbGYNrqcTzThW8NxIqQGRix9k0xgmEMfBD68SS4764x/Ko8YOxeHeE4zN1WIaLvwCxe2AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:24:45.695533Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.08913","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:45a2c86d609bc70a11cc49e75ac26a07fcbf741f893bbbfebfd48c045a825b8a","sha256:013c2c4c3375bab889ec52169b79899d168ef94d331afb39f7ccf51602c6b07d"],"state_sha256":"a68f03fb7ad82aff484c7cdc56e075f07bc07568ba5a11960966b4fd05c8dac8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"av9/H9sCyZo1t8wtfcEw1rINZ3WCfeSeltFiJU8AWphFFzUriLK6lVq7oq9rsAn8l9g+GJYr0HyOvuWMy9TcDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T05:54:50.203933Z","bundle_sha256":"08a0d77fc5a062b7733a01472cc9e50f99711e5561ea08632f322962c0a9db3b"}}