{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:VTOGFTWQYRWVG2A7VWKFO4NA4A","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":"94bd91882f1a16f54bf949aa4120868a0e3e8d083f80bfc54e9c6c3be11dff6f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-03-10T01:30:18Z","title_canon_sha256":"8bd9ffb48f50068be1c0b3d36bf9dcb8b1f08a51985002eeb052b88280860a52"},"schema_version":"1.0","source":{"id":"2103.05808","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.05808","created_at":"2026-07-05T02:42:04Z"},{"alias_kind":"arxiv_version","alias_value":"2103.05808v2","created_at":"2026-07-05T02:42:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.05808","created_at":"2026-07-05T02:42:04Z"},{"alias_kind":"pith_short_12","alias_value":"VTOGFTWQYRWV","created_at":"2026-07-05T02:42:04Z"},{"alias_kind":"pith_short_16","alias_value":"VTOGFTWQYRWVG2A7","created_at":"2026-07-05T02:42:04Z"},{"alias_kind":"pith_short_8","alias_value":"VTOGFTWQ","created_at":"2026-07-05T02:42:04Z"}],"graph_snapshots":[{"event_id":"sha256:f310593d92ecab69dfd4b85bade438a8fd983c83b14f5eb712720a493473cad3","target":"graph","created_at":"2026-07-05T02:42:04Z","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/2103.05808/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop a novel algorithm for large-scale holographic reconstruction of 3D particle fields. Our method is based on a multiple-scattering beam propagation method (BPM) combined with sparse regularization that enables recovering dense 3D particles of high refractive index contrast from a single hologram. We show that the BPM-computed hologram generates intensity statistics closely matching with the experimental measurements and provides up to 9$\\times$ higher accuracy than the single-scattering model. To solve the inverse problem, we devise a computationally efficient algorithm, which reduces","authors_text":"Hao Wang, Jiabei Zhu, Lei Tian, Waleed Tahir","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-03-10T01:30:18Z","title":"Large-scale holographic particle 3D imaging with the beam propagation model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.05808","kind":"arxiv","version":2},"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:dac6504a911867b82d7ca0984666a68aeaad3e9a12210b439110bfde3024c1a8","target":"record","created_at":"2026-07-05T02:42:04Z","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":"94bd91882f1a16f54bf949aa4120868a0e3e8d083f80bfc54e9c6c3be11dff6f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-03-10T01:30:18Z","title_canon_sha256":"8bd9ffb48f50068be1c0b3d36bf9dcb8b1f08a51985002eeb052b88280860a52"},"schema_version":"1.0","source":{"id":"2103.05808","kind":"arxiv","version":2}},"canonical_sha256":"acdc62ced0c46d53681fad945771a0e036a177f6462d1e9669cbf2fb5c62e459","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"acdc62ced0c46d53681fad945771a0e036a177f6462d1e9669cbf2fb5c62e459","first_computed_at":"2026-07-05T02:42:04.128026Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:42:04.128026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K4T5BlbVGQsVetfmqw1wq9C/whRRlz4hX8LGAslMMKbQ/taIQDTrmzhMU+N/8sNEeVuGZzfXfoPETri7Tr5BBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:42:04.128425Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.05808","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dac6504a911867b82d7ca0984666a68aeaad3e9a12210b439110bfde3024c1a8","sha256:f310593d92ecab69dfd4b85bade438a8fd983c83b14f5eb712720a493473cad3"],"state_sha256":"b3de2906167dabb68be29bc04c49175872dfd48569d7894d8d189fefe525e022"}