{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EYUJVTPD6SVAIC32UYIZW52BLT","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":"456bce3e1f0dfdf01d789103bfb071c805c6ed5104aed79b3994942334d7d598","cross_cats_sorted":["cs.DC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-04-06T17:42:23Z","title_canon_sha256":"d6c37d4c376c34e3e62f0524269b21673986718535e5fdf374bda6f82a26ed62"},"schema_version":"1.0","source":{"id":"2504.04564","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.04564","created_at":"2026-07-05T10:47:21Z"},{"alias_kind":"arxiv_version","alias_value":"2504.04564v2","created_at":"2026-07-05T10:47:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.04564","created_at":"2026-07-05T10:47:21Z"},{"alias_kind":"pith_short_12","alias_value":"EYUJVTPD6SVA","created_at":"2026-07-05T10:47:21Z"},{"alias_kind":"pith_short_16","alias_value":"EYUJVTPD6SVAIC32","created_at":"2026-07-05T10:47:21Z"},{"alias_kind":"pith_short_8","alias_value":"EYUJVTPD","created_at":"2026-07-05T10:47:21Z"}],"graph_snapshots":[{"event_id":"sha256:bb6bd7309fd335845d5eeb868ccbc2dabfe7d52bec56369799b7fef18fbb7be0","target":"graph","created_at":"2026-07-05T10:47:21Z","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/2504.04564/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a compression-based approach to GPU rendering of large volumetric data using OpenVDB and NanoVDB. We use OpenVDB to create a lossy, fixed-rate compressed representation of the volume on the host, and use NanoVDB to perform fast, low-overhead, and on-the-fly decompression during rendering. We show that this approach is fast, works well even in a (incoherent) Monte Carlo path tracing context, can significantly reduce the memory requirements of volume rendering, and can be used as an almost drop-in replacement into existing 3D texture-based renderers.","authors_text":"Ingo Wald, Jefferson Amstutz, Milan Jaros, Stefan Zellmann","cross_cats":["cs.DC"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-04-06T17:42:23Z","title":"GPU Volume Rendering with Hierarchical Compression Using VDB"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.04564","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":"sha256:7f705475da4c461798f5992a615439f53d6a4f1a63eab05c42e29125c7052ef6","target":"record","created_at":"2026-07-05T10:47:21Z","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":"456bce3e1f0dfdf01d789103bfb071c805c6ed5104aed79b3994942334d7d598","cross_cats_sorted":["cs.DC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-04-06T17:42:23Z","title_canon_sha256":"d6c37d4c376c34e3e62f0524269b21673986718535e5fdf374bda6f82a26ed62"},"schema_version":"1.0","source":{"id":"2504.04564","kind":"arxiv","version":2}},"canonical_sha256":"26289acde3f4aa040b7aa6119b77415cc8a807a25211671f81b2898bf06a758a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26289acde3f4aa040b7aa6119b77415cc8a807a25211671f81b2898bf06a758a","first_computed_at":"2026-07-05T10:47:21.166578Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:47:21.166578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7gZW7WmZYgj1bTe/G60MKfb7NpgCwJZ8cgJD4mAza1PauFBfp9CmBIwDVii1+ha+hcEoCA2h2q7/AhJRREjvCw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:47:21.167023Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.04564","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f705475da4c461798f5992a615439f53d6a4f1a63eab05c42e29125c7052ef6","sha256:bb6bd7309fd335845d5eeb868ccbc2dabfe7d52bec56369799b7fef18fbb7be0"],"state_sha256":"fb8aef247c12efb4ffb6e050c782ce21fc4c4dea4dda7dfd9fc55c08a6b0975f"}