{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:F4KHRHCPMUICDMFU6LDLVU277A","short_pith_number":"pith:F4KHRHCP","canonical_record":{"source":{"id":"2212.04096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-12-08T06:15:10Z","cross_cats_sorted":[],"title_canon_sha256":"60a103c1b374e10be1fa982f5e73153dcb9c1aadb3d3d2208add1353b2a9cd7a","abstract_canon_sha256":"b80823f7efd0ba04822bd68656d77fa337e5f7705fd893589b3a4fa0f49862f5"},"schema_version":"1.0"},"canonical_sha256":"2f14789c4f651021b0b4f2c6bad35ff838cba45ce148ec1d5f3c380c5127adbf","source":{"kind":"arxiv","id":"2212.04096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.04096","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"arxiv_version","alias_value":"2212.04096v1","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.04096","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"pith_short_12","alias_value":"F4KHRHCPMUIC","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"pith_short_16","alias_value":"F4KHRHCPMUICDMFU","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"pith_short_8","alias_value":"F4KHRHCP","created_at":"2026-07-05T05:23:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:F4KHRHCPMUICDMFU6LDLVU277A","target":"record","payload":{"canonical_record":{"source":{"id":"2212.04096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-12-08T06:15:10Z","cross_cats_sorted":[],"title_canon_sha256":"60a103c1b374e10be1fa982f5e73153dcb9c1aadb3d3d2208add1353b2a9cd7a","abstract_canon_sha256":"b80823f7efd0ba04822bd68656d77fa337e5f7705fd893589b3a4fa0f49862f5"},"schema_version":"1.0"},"canonical_sha256":"2f14789c4f651021b0b4f2c6bad35ff838cba45ce148ec1d5f3c380c5127adbf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:23:36.280884Z","signature_b64":"MtUaXX9QmzZafzYnLxxB3cxMkqtqNVaUTEUgZ2XdRfIMki9NokmMJBovBp8u7rWMY7Dc8ReafhD0jM2bNX92BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f14789c4f651021b0b4f2c6bad35ff838cba45ce148ec1d5f3c380c5127adbf","last_reissued_at":"2026-07-05T05:23:36.280463Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:23:36.280463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.04096","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":"2026-07-05T05:23:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mJNggFw7dFpuRqU0Pca7o61R4PwZhu/qWnzGNBtFeil7n+c4q1hxfBtKM81EcL03sBMJnxBiJALf0NUbMNZoBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T04:51:12.413584Z"},"content_sha256":"f64f02d3f9430e3f0bca2c4a28d1af867305e13b93ce1b183c0d3c8f406e6a90","schema_version":"1.0","event_id":"sha256:f64f02d3f9430e3f0bca2c4a28d1af867305e13b93ce1b183c0d3c8f406e6a90"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:F4KHRHCPMUICDMFU6LDLVU277A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ALTO: Alternating Latent Topologies for Implicit 3D Reconstruction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Achuta Kadambi, Despoina Paschalidou, Gordon Wetzstein, Jeong Joon Park, Leonidas Guibas, Shijie Zhou, Suya You, Zhen Wang","submitted_at":"2022-12-08T06:15:10Z","abstract_excerpt":"This work introduces alternating latent topologies (ALTO) for high-fidelity reconstruction of implicit 3D surfaces from noisy point clouds. Previous work identifies that the spatial arrangement of latent encodings is important to recover detail. One school of thought is to encode a latent vector for each point (point latents). Another school of thought is to project point latents into a grid (grid latents) which could be a voxel grid or triplane grid. Each school of thought has tradeoffs. Grid latents are coarse and lose high-frequency detail. In contrast, point latents preserve detail. Howeve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.04096","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/2212.04096/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":"2026-07-05T05:23:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/IDIzHiIr/vv7m+QiC8gQm7a5QIv+2MBYgwJYIVk4tqPyIFDjEM0s9NuRZidDuxdN/O9S7bxAHB8mDB1kN1SDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T04:51:12.413955Z"},"content_sha256":"a6777ed92d85f916b6d7bd6e06b1df56cbc9dd6ddc94a272d3ac255636ed7454","schema_version":"1.0","event_id":"sha256:a6777ed92d85f916b6d7bd6e06b1df56cbc9dd6ddc94a272d3ac255636ed7454"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F4KHRHCPMUICDMFU6LDLVU277A/bundle.json","state_url":"https://pith.science/pith/F4KHRHCPMUICDMFU6LDLVU277A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F4KHRHCPMUICDMFU6LDLVU277A/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":"2026-07-07T04:51:12Z","links":{"resolver":"https://pith.science/pith/F4KHRHCPMUICDMFU6LDLVU277A","bundle":"https://pith.science/pith/F4KHRHCPMUICDMFU6LDLVU277A/bundle.json","state":"https://pith.science/pith/F4KHRHCPMUICDMFU6LDLVU277A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F4KHRHCPMUICDMFU6LDLVU277A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:F4KHRHCPMUICDMFU6LDLVU277A","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":"b80823f7efd0ba04822bd68656d77fa337e5f7705fd893589b3a4fa0f49862f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-12-08T06:15:10Z","title_canon_sha256":"60a103c1b374e10be1fa982f5e73153dcb9c1aadb3d3d2208add1353b2a9cd7a"},"schema_version":"1.0","source":{"id":"2212.04096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.04096","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"arxiv_version","alias_value":"2212.04096v1","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.04096","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"pith_short_12","alias_value":"F4KHRHCPMUIC","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"pith_short_16","alias_value":"F4KHRHCPMUICDMFU","created_at":"2026-07-05T05:23:36Z"},{"alias_kind":"pith_short_8","alias_value":"F4KHRHCP","created_at":"2026-07-05T05:23:36Z"}],"graph_snapshots":[{"event_id":"sha256:a6777ed92d85f916b6d7bd6e06b1df56cbc9dd6ddc94a272d3ac255636ed7454","target":"graph","created_at":"2026-07-05T05:23:36Z","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/2212.04096/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work introduces alternating latent topologies (ALTO) for high-fidelity reconstruction of implicit 3D surfaces from noisy point clouds. Previous work identifies that the spatial arrangement of latent encodings is important to recover detail. One school of thought is to encode a latent vector for each point (point latents). Another school of thought is to project point latents into a grid (grid latents) which could be a voxel grid or triplane grid. Each school of thought has tradeoffs. Grid latents are coarse and lose high-frequency detail. In contrast, point latents preserve detail. Howeve","authors_text":"Achuta Kadambi, Despoina Paschalidou, Gordon Wetzstein, Jeong Joon Park, Leonidas Guibas, Shijie Zhou, Suya You, Zhen Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-12-08T06:15:10Z","title":"ALTO: Alternating Latent Topologies for Implicit 3D Reconstruction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.04096","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:f64f02d3f9430e3f0bca2c4a28d1af867305e13b93ce1b183c0d3c8f406e6a90","target":"record","created_at":"2026-07-05T05:23:36Z","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":"b80823f7efd0ba04822bd68656d77fa337e5f7705fd893589b3a4fa0f49862f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2022-12-08T06:15:10Z","title_canon_sha256":"60a103c1b374e10be1fa982f5e73153dcb9c1aadb3d3d2208add1353b2a9cd7a"},"schema_version":"1.0","source":{"id":"2212.04096","kind":"arxiv","version":1}},"canonical_sha256":"2f14789c4f651021b0b4f2c6bad35ff838cba45ce148ec1d5f3c380c5127adbf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f14789c4f651021b0b4f2c6bad35ff838cba45ce148ec1d5f3c380c5127adbf","first_computed_at":"2026-07-05T05:23:36.280463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:23:36.280463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MtUaXX9QmzZafzYnLxxB3cxMkqtqNVaUTEUgZ2XdRfIMki9NokmMJBovBp8u7rWMY7Dc8ReafhD0jM2bNX92BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:23:36.280884Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.04096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f64f02d3f9430e3f0bca2c4a28d1af867305e13b93ce1b183c0d3c8f406e6a90","sha256:a6777ed92d85f916b6d7bd6e06b1df56cbc9dd6ddc94a272d3ac255636ed7454"],"state_sha256":"22e7879f5cecc8b019148bd0b485a7f5b9ba0e8454b0b667ba2db2e81f7c85be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zauflpO3kK/IRnOCsvA8OBAIU5ICfLL3z3AtGEzVwcM6/tS02W4C1BKBDAlwzCBdr6wkRIvJfaV2hutdb5rFAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T04:51:12.416577Z","bundle_sha256":"97aea1ac626f0452078cdd4709822b38b17c4ec38c9e1e05fb6bac3a3a1e94d3"}}