{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:CJ7MV3FSKXX53THRPZYCE65OPO","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":"55731178c77a10236d5e477af4467276f7a46e0933d05578ddeffc982ca5a302","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-03-16T15:44:31Z","title_canon_sha256":"b78babd7d909a1170ee611f45df59a54ed78692a2b28aae3559cf542988f2fc9"},"schema_version":"1.0","source":{"id":"2303.09412","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.09412","created_at":"2026-07-05T07:05:07Z"},{"alias_kind":"arxiv_version","alias_value":"2303.09412v4","created_at":"2026-07-05T07:05:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.09412","created_at":"2026-07-05T07:05:07Z"},{"alias_kind":"pith_short_12","alias_value":"CJ7MV3FSKXX5","created_at":"2026-07-05T07:05:07Z"},{"alias_kind":"pith_short_16","alias_value":"CJ7MV3FSKXX53THR","created_at":"2026-07-05T07:05:07Z"},{"alias_kind":"pith_short_8","alias_value":"CJ7MV3FS","created_at":"2026-07-05T07:05:07Z"}],"graph_snapshots":[{"event_id":"sha256:6bdcc3a2e30960baffb120d13942b27012cb6a86e4b435adb7f00f1dbfbced71","target":"graph","created_at":"2026-07-05T07:05:07Z","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/2303.09412/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Novel view synthesis using neural radiance fields (NeRF) is the state-of-the-art technique for generating high-quality images from novel viewpoints. Existing methods require a priori knowledge about extrinsic and intrinsic camera parameters. This limits their applicability to synthetic scenes, or real-world scenarios with the necessity of a preprocessing step. Current research on the joint optimization of camera parameters and NeRF focuses on refining noisy extrinsic camera parameters and often relies on the preprocessing of intrinsic camera parameters. Further approaches are limited to cover ","authors_text":"Bernhard Egger, Daniel Roth, Fabian Deuser, Hannah Schieber, Norbert Oswald","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-03-16T15:44:31Z","title":"NeRFtrinsic Four: An End-To-End Trainable NeRF Jointly Optimizing Diverse Intrinsic and Extrinsic Camera Parameters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.09412","kind":"arxiv","version":4},"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:aa29a9729b244cf4bedc87523b799992cb038156f1daac0e37ea55fb809e59fb","target":"record","created_at":"2026-07-05T07:05:07Z","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":"55731178c77a10236d5e477af4467276f7a46e0933d05578ddeffc982ca5a302","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2023-03-16T15:44:31Z","title_canon_sha256":"b78babd7d909a1170ee611f45df59a54ed78692a2b28aae3559cf542988f2fc9"},"schema_version":"1.0","source":{"id":"2303.09412","kind":"arxiv","version":4}},"canonical_sha256":"127ecaecb255efddccf17e70227bae7bacba4a4209bf6d776403cd80565c55ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"127ecaecb255efddccf17e70227bae7bacba4a4209bf6d776403cd80565c55ca","first_computed_at":"2026-07-05T07:05:07.219750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:05:07.219750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RA779dOmhztXp5px+CG1XIzWDR2E7qhQ21IUJzzhM+LQrkt5Z/cv2ordYRamjNzLKs7LyUo6HxTqU3KKPj5WDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:05:07.220243Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.09412","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa29a9729b244cf4bedc87523b799992cb038156f1daac0e37ea55fb809e59fb","sha256:6bdcc3a2e30960baffb120d13942b27012cb6a86e4b435adb7f00f1dbfbced71"],"state_sha256":"41be0451bec51e837d80b3b8f130ea637c8b5d3bd8b44f4c1f19d6cc9d8eab4d"}