{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:OU6A6WTPQABYK7FYIQIUSTGKLF","short_pith_number":"pith:OU6A6WTP","canonical_record":{"source":{"id":"2305.13220","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-22T16:50:19Z","cross_cats_sorted":[],"title_canon_sha256":"f9e8d2f4bb711ccc82a056f8ea711fa28989508d733465a9954a665d61f564a3","abstract_canon_sha256":"27bbe90b5d44304f5d838258fd2b3af1f21a61fb364141c08e815bae7ef3e625"},"schema_version":"1.0"},"canonical_sha256":"753c0f5a6f8003857cb84411494cca594f4979d756261e431b51c8de21540055","source":{"kind":"arxiv","id":"2305.13220","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.13220","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"arxiv_version","alias_value":"2305.13220v1","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.13220","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"pith_short_12","alias_value":"OU6A6WTPQABY","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"pith_short_16","alias_value":"OU6A6WTPQABYK7FY","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"pith_short_8","alias_value":"OU6A6WTP","created_at":"2026-07-05T06:12:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:OU6A6WTPQABYK7FYIQIUSTGKLF","target":"record","payload":{"canonical_record":{"source":{"id":"2305.13220","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-22T16:50:19Z","cross_cats_sorted":[],"title_canon_sha256":"f9e8d2f4bb711ccc82a056f8ea711fa28989508d733465a9954a665d61f564a3","abstract_canon_sha256":"27bbe90b5d44304f5d838258fd2b3af1f21a61fb364141c08e815bae7ef3e625"},"schema_version":"1.0"},"canonical_sha256":"753c0f5a6f8003857cb84411494cca594f4979d756261e431b51c8de21540055","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:12:27.945761Z","signature_b64":"OOWrS3kdHAllarE9hXzGErbGxFtt5JHue3L7f/GbRnTfoIaNaJs36b1cQCjbLW683a/Pgb6QfC7qFffh/MzXDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"753c0f5a6f8003857cb84411494cca594f4979d756261e431b51c8de21540055","last_reissued_at":"2026-07-05T06:12:27.945245Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:12:27.945245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2305.13220","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":"2026-07-05T06:12:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GeFEbDXqJDYhOQ8v6MlKkiDVZH1BJQ31QM70NQPdVvau/uWrNoVZ8xNwxHBz+rLayBH0SYxRp0RWvRRJmK1eCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T23:32:42.058602Z"},"content_sha256":"0632212161849386942a56282ffc60a6f62771f376c5f2ba416e8a34e749e5ac","schema_version":"1.0","event_id":"sha256:0632212161849386942a56282ffc60a6f62771f376c5f2ba416e8a34e749e5ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:OU6A6WTPQABYK7FYIQIUSTGKLF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fast Monocular Scene Reconstruction with Global-Sparse Local-Dense Grids","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Anima Anandkumar, Charles Loop, Chris Choy, Or Litany, Wei Dong, Yuke Zhu","submitted_at":"2023-05-22T16:50:19Z","abstract_excerpt":"Indoor scene reconstruction from monocular images has long been sought after by augmented reality and robotics developers. Recent advances in neural field representations and monocular priors have led to remarkable results in scene-level surface reconstructions. The reliance on Multilayer Perceptrons (MLP), however, significantly limits speed in training and rendering. In this work, we propose to directly use signed distance function (SDF) in sparse voxel block grids for fast and accurate scene reconstruction without MLPs. Our globally sparse and locally dense data structure exploits surfaces'"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.13220","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/2305.13220/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":"2026-07-05T06:12:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N+MV4EUIEutQRoWATcMoJkHaA8I0pMQWa4vsgfsf6fy2Km0vGbgsm6gE37VAlobuDnrdvulou0nc6WOoei9xDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T23:32:42.058960Z"},"content_sha256":"686f7035459d3f0cdc95a7b5d2206a7102b5d9eff904ff5a8570d68e542c600c","schema_version":"1.0","event_id":"sha256:686f7035459d3f0cdc95a7b5d2206a7102b5d9eff904ff5a8570d68e542c600c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OU6A6WTPQABYK7FYIQIUSTGKLF/bundle.json","state_url":"https://pith.science/pith/OU6A6WTPQABYK7FYIQIUSTGKLF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OU6A6WTPQABYK7FYIQIUSTGKLF/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":"2026-07-16T23:32:42Z","links":{"resolver":"https://pith.science/pith/OU6A6WTPQABYK7FYIQIUSTGKLF","bundle":"https://pith.science/pith/OU6A6WTPQABYK7FYIQIUSTGKLF/bundle.json","state":"https://pith.science/pith/OU6A6WTPQABYK7FYIQIUSTGKLF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OU6A6WTPQABYK7FYIQIUSTGKLF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:OU6A6WTPQABYK7FYIQIUSTGKLF","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":"27bbe90b5d44304f5d838258fd2b3af1f21a61fb364141c08e815bae7ef3e625","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-22T16:50:19Z","title_canon_sha256":"f9e8d2f4bb711ccc82a056f8ea711fa28989508d733465a9954a665d61f564a3"},"schema_version":"1.0","source":{"id":"2305.13220","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.13220","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"arxiv_version","alias_value":"2305.13220v1","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.13220","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"pith_short_12","alias_value":"OU6A6WTPQABY","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"pith_short_16","alias_value":"OU6A6WTPQABYK7FY","created_at":"2026-07-05T06:12:27Z"},{"alias_kind":"pith_short_8","alias_value":"OU6A6WTP","created_at":"2026-07-05T06:12:27Z"}],"graph_snapshots":[{"event_id":"sha256:686f7035459d3f0cdc95a7b5d2206a7102b5d9eff904ff5a8570d68e542c600c","target":"graph","created_at":"2026-07-05T06:12:27Z","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/2305.13220/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Indoor scene reconstruction from monocular images has long been sought after by augmented reality and robotics developers. Recent advances in neural field representations and monocular priors have led to remarkable results in scene-level surface reconstructions. The reliance on Multilayer Perceptrons (MLP), however, significantly limits speed in training and rendering. In this work, we propose to directly use signed distance function (SDF) in sparse voxel block grids for fast and accurate scene reconstruction without MLPs. Our globally sparse and locally dense data structure exploits surfaces'","authors_text":"Anima Anandkumar, Charles Loop, Chris Choy, Or Litany, Wei Dong, Yuke Zhu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-22T16:50:19Z","title":"Fast Monocular Scene Reconstruction with Global-Sparse Local-Dense Grids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.13220","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":"sha256:0632212161849386942a56282ffc60a6f62771f376c5f2ba416e8a34e749e5ac","target":"record","created_at":"2026-07-05T06:12:27Z","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":"27bbe90b5d44304f5d838258fd2b3af1f21a61fb364141c08e815bae7ef3e625","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-05-22T16:50:19Z","title_canon_sha256":"f9e8d2f4bb711ccc82a056f8ea711fa28989508d733465a9954a665d61f564a3"},"schema_version":"1.0","source":{"id":"2305.13220","kind":"arxiv","version":1}},"canonical_sha256":"753c0f5a6f8003857cb84411494cca594f4979d756261e431b51c8de21540055","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"753c0f5a6f8003857cb84411494cca594f4979d756261e431b51c8de21540055","first_computed_at":"2026-07-05T06:12:27.945245Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:12:27.945245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OOWrS3kdHAllarE9hXzGErbGxFtt5JHue3L7f/GbRnTfoIaNaJs36b1cQCjbLW683a/Pgb6QfC7qFffh/MzXDw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:12:27.945761Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.13220","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0632212161849386942a56282ffc60a6f62771f376c5f2ba416e8a34e749e5ac","sha256:686f7035459d3f0cdc95a7b5d2206a7102b5d9eff904ff5a8570d68e542c600c"],"state_sha256":"f7b651f895d02d3179339c2de79beed771e2647ba5a2cf83047bd7dcbfb2f3bb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o/Fq7FqRNevADKlNv4mMz8uJN9mbvj9qNsXQnqQs3d7PoqsHMRlrpnCBuHgJ8NJGZ0WolykqhS+nYxR397CjDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-16T23:32:42.061045Z","bundle_sha256":"11bf354b7dc18a53f6351a6ae3097825062d00b1acf75c64299b643d82997c1e"}}