{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:F7THJSEQDVJ3Z4MXY7CW2EEXPB","short_pith_number":"pith:F7THJSEQ","canonical_record":{"source":{"id":"2302.12249","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-02-23T18:59:07Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"69601cd136d15ea7c9800e7f4540610c5288b745d947b703bd66eae880274f3b","abstract_canon_sha256":"83afd774a63ccb8f03b7069fa77fab8a67342a8dafe85f105a739b7f099c5a6f"},"schema_version":"1.0"},"canonical_sha256":"2fe674c8901d53bcf197c7c56d1097787d4a7aa5e0dffb77db6925acafb31775","source":{"kind":"arxiv","id":"2302.12249","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.12249","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"arxiv_version","alias_value":"2302.12249v1","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.12249","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"pith_short_12","alias_value":"F7THJSEQDVJ3","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"pith_short_16","alias_value":"F7THJSEQDVJ3Z4MX","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"pith_short_8","alias_value":"F7THJSEQ","created_at":"2026-07-05T05:45:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:F7THJSEQDVJ3Z4MXY7CW2EEXPB","target":"record","payload":{"canonical_record":{"source":{"id":"2302.12249","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-02-23T18:59:07Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"69601cd136d15ea7c9800e7f4540610c5288b745d947b703bd66eae880274f3b","abstract_canon_sha256":"83afd774a63ccb8f03b7069fa77fab8a67342a8dafe85f105a739b7f099c5a6f"},"schema_version":"1.0"},"canonical_sha256":"2fe674c8901d53bcf197c7c56d1097787d4a7aa5e0dffb77db6925acafb31775","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:45:01.895159Z","signature_b64":"+mSCfJGJV0eXRSik2grHHJB+i74mWVgaGEkaYzgD3Hx73fTZuAPUmzAjhlMXglnAz9X6ud/nfKA1JN+EQsIxCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2fe674c8901d53bcf197c7c56d1097787d4a7aa5e0dffb77db6925acafb31775","last_reissued_at":"2026-07-05T05:45:01.894772Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:45:01.894772Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.12249","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":"2026-07-05T05:45:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/JZTooTkasV4hNs3a5H3vPDb/aGpVnuYmgX6x3V7KGmQCin64O7txvuhTxZvwPHveoOdcxxjwLZtjp+L7ZJCBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T09:13:19.395838Z"},"content_sha256":"3dfb172d388b2f0a43fc91450c67cf22ba640c5daba0261e899f714cef132b48","schema_version":"1.0","event_id":"sha256:3dfb172d388b2f0a43fc91450c67cf22ba640c5daba0261e899f714cef132b48"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:F7THJSEQDVJ3Z4MXY7CW2EEXPB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MERF: Memory-Efficient Radiance Fields for Real-time View Synthesis in Unbounded Scenes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.GR"],"primary_cat":"cs.CV","authors_text":"Andreas Geiger, Ben Mildenhall, Christian Reiser, Dor Verbin, Jonathan T. Barron, Peter Hedman, Pratul P. Srinivasan, Richard Szeliski","submitted_at":"2023-02-23T18:59:07Z","abstract_excerpt":"Neural radiance fields enable state-of-the-art photorealistic view synthesis. However, existing radiance field representations are either too compute-intensive for real-time rendering or require too much memory to scale to large scenes. We present a Memory-Efficient Radiance Field (MERF) representation that achieves real-time rendering of large-scale scenes in a browser. MERF reduces the memory consumption of prior sparse volumetric radiance fields using a combination of a sparse feature grid and high-resolution 2D feature planes. To support large-scale unbounded scenes, we introduce a novel c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.12249","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/2302.12249/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":"2026-07-05T05:45:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ujBKu4R6qsAnXLWP1Y4y0XAM6UKArDM3nICn0og3mVkYiVrIdVw0mFx7LFVb8xUIXlZ3qLlZcMhLlmtNQuB4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T09:13:19.396884Z"},"content_sha256":"f6ec22c7d4c190a653440e1e81a448ab96f63a5ab04af7da28b33ab32c336872","schema_version":"1.0","event_id":"sha256:f6ec22c7d4c190a653440e1e81a448ab96f63a5ab04af7da28b33ab32c336872"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F7THJSEQDVJ3Z4MXY7CW2EEXPB/bundle.json","state_url":"https://pith.science/pith/F7THJSEQDVJ3Z4MXY7CW2EEXPB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F7THJSEQDVJ3Z4MXY7CW2EEXPB/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":"2026-08-12T09:13:19Z","links":{"resolver":"https://pith.science/pith/F7THJSEQDVJ3Z4MXY7CW2EEXPB","bundle":"https://pith.science/pith/F7THJSEQDVJ3Z4MXY7CW2EEXPB/bundle.json","state":"https://pith.science/pith/F7THJSEQDVJ3Z4MXY7CW2EEXPB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F7THJSEQDVJ3Z4MXY7CW2EEXPB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:F7THJSEQDVJ3Z4MXY7CW2EEXPB","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":"83afd774a63ccb8f03b7069fa77fab8a67342a8dafe85f105a739b7f099c5a6f","cross_cats_sorted":["cs.GR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-02-23T18:59:07Z","title_canon_sha256":"69601cd136d15ea7c9800e7f4540610c5288b745d947b703bd66eae880274f3b"},"schema_version":"1.0","source":{"id":"2302.12249","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.12249","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"arxiv_version","alias_value":"2302.12249v1","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.12249","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"pith_short_12","alias_value":"F7THJSEQDVJ3","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"pith_short_16","alias_value":"F7THJSEQDVJ3Z4MX","created_at":"2026-07-05T05:45:01Z"},{"alias_kind":"pith_short_8","alias_value":"F7THJSEQ","created_at":"2026-07-05T05:45:01Z"}],"graph_snapshots":[{"event_id":"sha256:f6ec22c7d4c190a653440e1e81a448ab96f63a5ab04af7da28b33ab32c336872","target":"graph","created_at":"2026-07-05T05:45:01Z","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/2302.12249/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Neural radiance fields enable state-of-the-art photorealistic view synthesis. However, existing radiance field representations are either too compute-intensive for real-time rendering or require too much memory to scale to large scenes. We present a Memory-Efficient Radiance Field (MERF) representation that achieves real-time rendering of large-scale scenes in a browser. MERF reduces the memory consumption of prior sparse volumetric radiance fields using a combination of a sparse feature grid and high-resolution 2D feature planes. To support large-scale unbounded scenes, we introduce a novel c","authors_text":"Andreas Geiger, Ben Mildenhall, Christian Reiser, Dor Verbin, Jonathan T. Barron, Peter Hedman, Pratul P. Srinivasan, Richard Szeliski","cross_cats":["cs.GR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-02-23T18:59:07Z","title":"MERF: Memory-Efficient Radiance Fields for Real-time View Synthesis in Unbounded Scenes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.12249","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":"sha256:3dfb172d388b2f0a43fc91450c67cf22ba640c5daba0261e899f714cef132b48","target":"record","created_at":"2026-07-05T05:45:01Z","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":"83afd774a63ccb8f03b7069fa77fab8a67342a8dafe85f105a739b7f099c5a6f","cross_cats_sorted":["cs.GR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-02-23T18:59:07Z","title_canon_sha256":"69601cd136d15ea7c9800e7f4540610c5288b745d947b703bd66eae880274f3b"},"schema_version":"1.0","source":{"id":"2302.12249","kind":"arxiv","version":1}},"canonical_sha256":"2fe674c8901d53bcf197c7c56d1097787d4a7aa5e0dffb77db6925acafb31775","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2fe674c8901d53bcf197c7c56d1097787d4a7aa5e0dffb77db6925acafb31775","first_computed_at":"2026-07-05T05:45:01.894772Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:45:01.894772Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+mSCfJGJV0eXRSik2grHHJB+i74mWVgaGEkaYzgD3Hx73fTZuAPUmzAjhlMXglnAz9X6ud/nfKA1JN+EQsIxCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:45:01.895159Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.12249","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3dfb172d388b2f0a43fc91450c67cf22ba640c5daba0261e899f714cef132b48","sha256:f6ec22c7d4c190a653440e1e81a448ab96f63a5ab04af7da28b33ab32c336872"],"state_sha256":"e660f160dcaf8594215a98d1ab29ed767097e0980f9c6e03757458752dfbce29"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MpaRe4sG3Es/0jqiaGEneL21MRQKjFfhIwQg+p+2lhbZDYVj6wXQM28zT2EY+ZrhU9pMxJ23nCS9mEEJDdHXAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T09:13:19.406184Z","bundle_sha256":"fd011cc45ae5bd72ce7f75e6b0abb947cd7454840800a213fc2255ea7f9b1892"}}