{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:JJ2ETGK7HLHJLNIKGOGS5LVXLB","short_pith_number":"pith:JJ2ETGK7","canonical_record":{"source":{"id":"2304.13445","kind":"arxiv","version":5},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-26T11:02:04Z","cross_cats_sorted":[],"title_canon_sha256":"d2b0f3f12d08c38465e04978bb210282b14a8602242394d27c39b3a7076cee7a","abstract_canon_sha256":"fb837949a1c3bd4908220cce9aeb253b3b441deaf76207b18a7fe3a05aa2a49c"},"schema_version":"1.0"},"canonical_sha256":"4a7449995f3ace95b50a338d2eaeb7585aa080bbac99f0e80a1c7ceb2c35ea72","source":{"kind":"arxiv","id":"2304.13445","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.13445","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"arxiv_version","alias_value":"2304.13445v5","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.13445","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"pith_short_12","alias_value":"JJ2ETGK7HLHJ","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"pith_short_16","alias_value":"JJ2ETGK7HLHJLNIK","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"pith_short_8","alias_value":"JJ2ETGK7","created_at":"2026-07-05T07:39:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:JJ2ETGK7HLHJLNIKGOGS5LVXLB","target":"record","payload":{"canonical_record":{"source":{"id":"2304.13445","kind":"arxiv","version":5},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-26T11:02:04Z","cross_cats_sorted":[],"title_canon_sha256":"d2b0f3f12d08c38465e04978bb210282b14a8602242394d27c39b3a7076cee7a","abstract_canon_sha256":"fb837949a1c3bd4908220cce9aeb253b3b441deaf76207b18a7fe3a05aa2a49c"},"schema_version":"1.0"},"canonical_sha256":"4a7449995f3ace95b50a338d2eaeb7585aa080bbac99f0e80a1c7ceb2c35ea72","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:39:58.524408Z","signature_b64":"9Rfo+AldcgYUPf+tH4zeXK7oOKHgumEm0+M/YUpXOtLQHiSAPM6yYDu/+4xHTD0r8nX/0nEdWBMXo+xqN9IaBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a7449995f3ace95b50a338d2eaeb7585aa080bbac99f0e80a1c7ceb2c35ea72","last_reissued_at":"2026-07-05T07:39:58.523981Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:39:58.523981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.13445","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:39:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ng1ubCKv5/p/XIseq+qO3mJGqaP2cDz2/mCiC6R+3eS+wBFM5iPFwkf8Q6YR5NOLxnoAibuNqh9X1pQGNFIsBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T14:36:23.754711Z"},"content_sha256":"b758b9a5deed88f26909d1cc1b9852928f6ca6bfecc0d2274c1fa8cf40585feb","schema_version":"1.0","event_id":"sha256:b758b9a5deed88f26909d1cc1b9852928f6ca6bfecc0d2274c1fa8cf40585feb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:JJ2ETGK7HLHJLNIKGOGS5LVXLB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neural-PBIR Reconstruction of Shape, Material, and Illumination","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Carl Marshall, Cheng Sun, Cheng Zhang, Guangyan Cai, Jia-Bin Huang, Kai Yan, Shuang Zhao, Zhao Dong, Zhengqin Li","submitted_at":"2023-04-26T11:02:04Z","abstract_excerpt":"Reconstructing the shape and spatially varying surface appearances of a physical-world object as well as its surrounding illumination based on 2D images (e.g., photographs) of the object has been a long-standing problem in computer vision and graphics. In this paper, we introduce an accurate and highly efficient object reconstruction pipeline combining neural based object reconstruction and physics-based inverse rendering (PBIR). Our pipeline firstly leverages a neural SDF based shape reconstruction to produce high-quality but potentially imperfect object shape. Then, we introduce a neural mat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.13445","kind":"arxiv","version":5},"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/2304.13445/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":"2026-07-05T07:39:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LyOYUkuN3NLZeUq+bXUhUh1173VF24faUZp0ttvTv7QNwcT4UldFonxFgyRjT9DgygLQfHdHwLqXJqm4pfCEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T14:36:23.755184Z"},"content_sha256":"ec2d349ae1f464f35f887f31386c7717f4bbcd0c4b94f9a5a6ab6d9766cb437a","schema_version":"1.0","event_id":"sha256:ec2d349ae1f464f35f887f31386c7717f4bbcd0c4b94f9a5a6ab6d9766cb437a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JJ2ETGK7HLHJLNIKGOGS5LVXLB/bundle.json","state_url":"https://pith.science/pith/JJ2ETGK7HLHJLNIKGOGS5LVXLB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JJ2ETGK7HLHJLNIKGOGS5LVXLB/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":"2026-08-15T14:36:23Z","links":{"resolver":"https://pith.science/pith/JJ2ETGK7HLHJLNIKGOGS5LVXLB","bundle":"https://pith.science/pith/JJ2ETGK7HLHJLNIKGOGS5LVXLB/bundle.json","state":"https://pith.science/pith/JJ2ETGK7HLHJLNIKGOGS5LVXLB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JJ2ETGK7HLHJLNIKGOGS5LVXLB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JJ2ETGK7HLHJLNIKGOGS5LVXLB","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":"fb837949a1c3bd4908220cce9aeb253b3b441deaf76207b18a7fe3a05aa2a49c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-26T11:02:04Z","title_canon_sha256":"d2b0f3f12d08c38465e04978bb210282b14a8602242394d27c39b3a7076cee7a"},"schema_version":"1.0","source":{"id":"2304.13445","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.13445","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"arxiv_version","alias_value":"2304.13445v5","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.13445","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"pith_short_12","alias_value":"JJ2ETGK7HLHJ","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"pith_short_16","alias_value":"JJ2ETGK7HLHJLNIK","created_at":"2026-07-05T07:39:58Z"},{"alias_kind":"pith_short_8","alias_value":"JJ2ETGK7","created_at":"2026-07-05T07:39:58Z"}],"graph_snapshots":[{"event_id":"sha256:ec2d349ae1f464f35f887f31386c7717f4bbcd0c4b94f9a5a6ab6d9766cb437a","target":"graph","created_at":"2026-07-05T07:39:58Z","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/2304.13445/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Reconstructing the shape and spatially varying surface appearances of a physical-world object as well as its surrounding illumination based on 2D images (e.g., photographs) of the object has been a long-standing problem in computer vision and graphics. In this paper, we introduce an accurate and highly efficient object reconstruction pipeline combining neural based object reconstruction and physics-based inverse rendering (PBIR). Our pipeline firstly leverages a neural SDF based shape reconstruction to produce high-quality but potentially imperfect object shape. Then, we introduce a neural mat","authors_text":"Carl Marshall, Cheng Sun, Cheng Zhang, Guangyan Cai, Jia-Bin Huang, Kai Yan, Shuang Zhao, Zhao Dong, Zhengqin Li","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-26T11:02:04Z","title":"Neural-PBIR Reconstruction of Shape, Material, and Illumination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.13445","kind":"arxiv","version":5},"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:b758b9a5deed88f26909d1cc1b9852928f6ca6bfecc0d2274c1fa8cf40585feb","target":"record","created_at":"2026-07-05T07:39:58Z","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":"fb837949a1c3bd4908220cce9aeb253b3b441deaf76207b18a7fe3a05aa2a49c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-26T11:02:04Z","title_canon_sha256":"d2b0f3f12d08c38465e04978bb210282b14a8602242394d27c39b3a7076cee7a"},"schema_version":"1.0","source":{"id":"2304.13445","kind":"arxiv","version":5}},"canonical_sha256":"4a7449995f3ace95b50a338d2eaeb7585aa080bbac99f0e80a1c7ceb2c35ea72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a7449995f3ace95b50a338d2eaeb7585aa080bbac99f0e80a1c7ceb2c35ea72","first_computed_at":"2026-07-05T07:39:58.523981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:39:58.523981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9Rfo+AldcgYUPf+tH4zeXK7oOKHgumEm0+M/YUpXOtLQHiSAPM6yYDu/+4xHTD0r8nX/0nEdWBMXo+xqN9IaBg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:39:58.524408Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.13445","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b758b9a5deed88f26909d1cc1b9852928f6ca6bfecc0d2274c1fa8cf40585feb","sha256:ec2d349ae1f464f35f887f31386c7717f4bbcd0c4b94f9a5a6ab6d9766cb437a"],"state_sha256":"18d587079cf7925832debbf98147233686ce3fc544a6ebaa8bb0575c268a6925"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d3ZDeCMkpUxs6pHrNeEBp+kUsBWqMfq8KO73vxsrRMAO5LjXNlfBqaPAD5qcKrU1S7vkyqoQqt+6qQvy/D/yAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T14:36:23.760354Z","bundle_sha256":"81a95da1ed0f3ee7250df1f4be9e50ff5bcc29d7089d81c94bc63ace7a713e39"}}