{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:BMQKBKVL6N4XF73DER7G7M3I7U","short_pith_number":"pith:BMQKBKVL","canonical_record":{"source":{"id":"2606.30869","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.GR","submitted_at":"2026-06-29T20:01:25Z","cross_cats_sorted":[],"title_canon_sha256":"7838c7a9aef452641844cf3ee6de275f52e476369602200eb259657f1bea6bfa","abstract_canon_sha256":"dcd64792e0bf46f1e3f1ecfcb00a2e45db8711821f3661768ebe340909af1f23"},"schema_version":"1.0"},"canonical_sha256":"0b20a0aaabf37972ff63247e6fb368fd1b17422f11fbdd835d835b80d932bd7a","source":{"kind":"arxiv","id":"2606.30869","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.30869","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"arxiv_version","alias_value":"2606.30869v1","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.30869","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_12","alias_value":"BMQKBKVL6N4X","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_16","alias_value":"BMQKBKVL6N4XF73D","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_8","alias_value":"BMQKBKVL","created_at":"2026-07-01T00:17:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:BMQKBKVL6N4XF73DER7G7M3I7U","target":"record","payload":{"canonical_record":{"source":{"id":"2606.30869","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.GR","submitted_at":"2026-06-29T20:01:25Z","cross_cats_sorted":[],"title_canon_sha256":"7838c7a9aef452641844cf3ee6de275f52e476369602200eb259657f1bea6bfa","abstract_canon_sha256":"dcd64792e0bf46f1e3f1ecfcb00a2e45db8711821f3661768ebe340909af1f23"},"schema_version":"1.0"},"canonical_sha256":"0b20a0aaabf37972ff63247e6fb368fd1b17422f11fbdd835d835b80d932bd7a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-01T00:17:20.003294Z","signature_b64":"L3GHv0SLDvJJ6GyNXAjIM0evgR/LpN6/I8bCZaYGgGfmdPuC9YnaQKQ8i1WHXRAWoYTsM262vekofAhH3+1OAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b20a0aaabf37972ff63247e6fb368fd1b17422f11fbdd835d835b80d932bd7a","last_reissued_at":"2026-07-01T00:17:20.002872Z","signature_status":"signed_v1","first_computed_at":"2026-07-01T00:17:20.002872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.30869","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":"2026-07-01T00:17:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XRqaOHQ8W29ntqif6eKAr50WBeNUGfvA8WCVbA302tP4upXIpmvPpKoVc6e2RILUQ+7+vZZkql2C7H79pRqsDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T10:59:31.510750Z"},"content_sha256":"09b248b454dfa6dd5082073ea80b0f9f2c2d1af1a2a679e962451eefb89bad86","schema_version":"1.0","event_id":"sha256:09b248b454dfa6dd5082073ea80b0f9f2c2d1af1a2a679e962451eefb89bad86"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:BMQKBKVL6N4XF73DER7G7M3I7U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GRay: Ray Tracing 3D Gaussians Near the Speed of Splats","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"George Drettakis, Jean-Fran\\c{c}ois Lalonde, Yohan Poirier-Ginter","submitted_at":"2026-06-29T20:01:25Z","abstract_excerpt":"3D Gaussian Splatting (3DGS) is a popular representation for radiance field reconstruction, distinguished by the rendering speed of its rasterization-based renderer. While 3D Gaussians can also be ray traced, this approach has so far been slower, with 3D Gaussian Ray Tracing (3DGRT) taking nearly one order of magnitude longer to optimize. To address this, we present GRay, a fast ray tracer for 3D Gaussians designed to close this performance gap and match 3DGS's speed. Our method leverages the algorithmic difference between both approaches: unlike rasterization, ray tracing evaluates only Gauss"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.30869","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/2606.30869/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":"2026-07-01T00:17:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"csyr1GPMaCTj3nFfnVmlgvqTHLz7P7CzFCHr+CvqXn1NykA2x/nTTzwI4/cnGUv9k2i+aMBsH/GO96hvqY1aAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T10:59:31.511111Z"},"content_sha256":"bbb3a4cd8e0e2afb11ad6ce13ec052089337082fe6bd5a23c9ac4a9791024a36","schema_version":"1.0","event_id":"sha256:bbb3a4cd8e0e2afb11ad6ce13ec052089337082fe6bd5a23c9ac4a9791024a36"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BMQKBKVL6N4XF73DER7G7M3I7U/bundle.json","state_url":"https://pith.science/pith/BMQKBKVL6N4XF73DER7G7M3I7U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BMQKBKVL6N4XF73DER7G7M3I7U/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":"2026-07-01T10:59:31Z","links":{"resolver":"https://pith.science/pith/BMQKBKVL6N4XF73DER7G7M3I7U","bundle":"https://pith.science/pith/BMQKBKVL6N4XF73DER7G7M3I7U/bundle.json","state":"https://pith.science/pith/BMQKBKVL6N4XF73DER7G7M3I7U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BMQKBKVL6N4XF73DER7G7M3I7U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:BMQKBKVL6N4XF73DER7G7M3I7U","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":"dcd64792e0bf46f1e3f1ecfcb00a2e45db8711821f3661768ebe340909af1f23","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.GR","submitted_at":"2026-06-29T20:01:25Z","title_canon_sha256":"7838c7a9aef452641844cf3ee6de275f52e476369602200eb259657f1bea6bfa"},"schema_version":"1.0","source":{"id":"2606.30869","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.30869","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"arxiv_version","alias_value":"2606.30869v1","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.30869","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_12","alias_value":"BMQKBKVL6N4X","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_16","alias_value":"BMQKBKVL6N4XF73D","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_8","alias_value":"BMQKBKVL","created_at":"2026-07-01T00:17:20Z"}],"graph_snapshots":[{"event_id":"sha256:bbb3a4cd8e0e2afb11ad6ce13ec052089337082fe6bd5a23c9ac4a9791024a36","target":"graph","created_at":"2026-07-01T00:17:20Z","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/2606.30869/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"3D Gaussian Splatting (3DGS) is a popular representation for radiance field reconstruction, distinguished by the rendering speed of its rasterization-based renderer. While 3D Gaussians can also be ray traced, this approach has so far been slower, with 3D Gaussian Ray Tracing (3DGRT) taking nearly one order of magnitude longer to optimize. To address this, we present GRay, a fast ray tracer for 3D Gaussians designed to close this performance gap and match 3DGS's speed. Our method leverages the algorithmic difference between both approaches: unlike rasterization, ray tracing evaluates only Gauss","authors_text":"George Drettakis, Jean-Fran\\c{c}ois Lalonde, Yohan Poirier-Ginter","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.GR","submitted_at":"2026-06-29T20:01:25Z","title":"GRay: Ray Tracing 3D Gaussians Near the Speed of Splats"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.30869","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":"sha256:09b248b454dfa6dd5082073ea80b0f9f2c2d1af1a2a679e962451eefb89bad86","target":"record","created_at":"2026-07-01T00:17:20Z","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":"dcd64792e0bf46f1e3f1ecfcb00a2e45db8711821f3661768ebe340909af1f23","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.GR","submitted_at":"2026-06-29T20:01:25Z","title_canon_sha256":"7838c7a9aef452641844cf3ee6de275f52e476369602200eb259657f1bea6bfa"},"schema_version":"1.0","source":{"id":"2606.30869","kind":"arxiv","version":1}},"canonical_sha256":"0b20a0aaabf37972ff63247e6fb368fd1b17422f11fbdd835d835b80d932bd7a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b20a0aaabf37972ff63247e6fb368fd1b17422f11fbdd835d835b80d932bd7a","first_computed_at":"2026-07-01T00:17:20.002872Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T00:17:20.002872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L3GHv0SLDvJJ6GyNXAjIM0evgR/LpN6/I8bCZaYGgGfmdPuC9YnaQKQ8i1WHXRAWoYTsM262vekofAhH3+1OAA==","signature_status":"signed_v1","signed_at":"2026-07-01T00:17:20.003294Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.30869","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09b248b454dfa6dd5082073ea80b0f9f2c2d1af1a2a679e962451eefb89bad86","sha256:bbb3a4cd8e0e2afb11ad6ce13ec052089337082fe6bd5a23c9ac4a9791024a36"],"state_sha256":"30e4a50af3d7768cd8d5486ed104d0b237b97d5014afa923aa862d6ae1daffbd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qCbkZUBOOtqDfUcGSWnnTOl01xT+FV8tY5x2EUMDgeuHE7xRsuH9oRmj7bHDamdGJq3/S1FlFmNFWusSbuI7BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T10:59:31.513045Z","bundle_sha256":"3de04fb294afb333837a1f3f35d3159726ce9724e6f84ae54cc41310f1d629d1"}}