{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:3T6FUIYIKS2V7G5JUFFFXDQLYR","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":"8ebbcf410261bd98c030b6f38aba143585a18774aad5c10ef9869831d06694dd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-04-22T20:21:33Z","title_canon_sha256":"c5a0e578657d629104357cff45a32325084e4970daa68327db7d132496e753ec"},"schema_version":"1.0","source":{"id":"2504.16247","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.16247","created_at":"2026-07-05T10:52:43Z"},{"alias_kind":"arxiv_version","alias_value":"2504.16247v1","created_at":"2026-07-05T10:52:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.16247","created_at":"2026-07-05T10:52:43Z"},{"alias_kind":"pith_short_12","alias_value":"3T6FUIYIKS2V","created_at":"2026-07-05T10:52:43Z"},{"alias_kind":"pith_short_16","alias_value":"3T6FUIYIKS2V7G5J","created_at":"2026-07-05T10:52:43Z"},{"alias_kind":"pith_short_8","alias_value":"3T6FUIYI","created_at":"2026-07-05T10:52:43Z"}],"graph_snapshots":[{"event_id":"sha256:8a5416e86b2a3ce173ea2ecb13ec0d7d0ba1e99c418a308e276c647d24964cc9","target":"graph","created_at":"2026-07-05T10:52:43Z","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/2504.16247/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Three-dimensional (3D) refractive index (RI) tomography offers label-free, quantitative volumetric imaging but faces limitations due to optical aberrations, limited resolution, and the computational complexity inherent to existing approaches. To overcome these barriers, we propose Analytic Fourier Ptychotomography (AFP), a new computational microscopy technique that analytically reconstructs aberration-free, complex-valued 3D RI distributions without iterative optimization or axial scanning. AFP incorporates a new concept called the finite sample thickness (FST) prior, and analytically solves ","authors_text":"Changhuei Yang, Haowen Zhou, Oumeng Zhang, Panlang Lyu, Reinaldo Alcalde, Ruizhi Cao, Shi Zhao, Zhenyu Dong","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-04-22T20:21:33Z","title":"Analytic Fourier ptychotomography for volumetric refractive index imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.16247","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:c6249d89a6bfa1b63da7e7051436afe62b2ec782060d13e45b8d6799cfd9bd36","target":"record","created_at":"2026-07-05T10:52:43Z","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":"8ebbcf410261bd98c030b6f38aba143585a18774aad5c10ef9869831d06694dd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-04-22T20:21:33Z","title_canon_sha256":"c5a0e578657d629104357cff45a32325084e4970daa68327db7d132496e753ec"},"schema_version":"1.0","source":{"id":"2504.16247","kind":"arxiv","version":1}},"canonical_sha256":"dcfc5a230854b55f9ba9a14a5b8e0bc47d536a8cd86a944d24b6072314ae4cb9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcfc5a230854b55f9ba9a14a5b8e0bc47d536a8cd86a944d24b6072314ae4cb9","first_computed_at":"2026-07-05T10:52:43.727910Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:52:43.727910Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VExnX1xuoAm6R2gXywO4oejrgWYkMNGVLnRaRS6X9EX4DjKHI6DAqeOwYN1lIidJP8O5kNVUCa7u1NqSYfawAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:52:43.728300Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.16247","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6249d89a6bfa1b63da7e7051436afe62b2ec782060d13e45b8d6799cfd9bd36","sha256:8a5416e86b2a3ce173ea2ecb13ec0d7d0ba1e99c418a308e276c647d24964cc9"],"state_sha256":"92d8d1fa7d1f8524364ca63eca6cde6bd1de3829c42b2a278e33ccc8c4e00e64"}