{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:TMKCTSSSHMTBIHOUZENGDWBRG4","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":"9b0f69872b2f8ab44594d0c609cf8a9ff085cacce53bb51a5ff8ad81b47dab25","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-05-12T19:35:23Z","title_canon_sha256":"437b571a11c7ff4648c6010a49cc3c75d02ed7bf759a4e23ec955e2c8ca75d5b"},"schema_version":"1.0","source":{"id":"2205.06327","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.06327","created_at":"2026-07-05T05:25:49Z"},{"alias_kind":"arxiv_version","alias_value":"2205.06327v2","created_at":"2026-07-05T05:25:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.06327","created_at":"2026-07-05T05:25:49Z"},{"alias_kind":"pith_short_12","alias_value":"TMKCTSSSHMTB","created_at":"2026-07-05T05:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"TMKCTSSSHMTBIHOU","created_at":"2026-07-05T05:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"TMKCTSSS","created_at":"2026-07-05T05:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:a466d3ee3290cf3661fa82aa491df395df9cc184b70a50e89bcf4aee40aea761","target":"graph","created_at":"2026-07-05T05:25:49Z","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/2205.06327/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ptychography is a popular microscopic imaging modality for many scientific discoveries and sets the record for highest image resolution. Unfortunately, the high image resolution for ptychographic reconstruction requires significant amount of memory and computations, forcing many applications to compromise their image resolution in exchange for a smaller memory footprint and a shorter reconstruction time. In this paper, we propose a novel image gradient decomposition method that significantly reduces the memory footprint for ptychographic reconstruction by tessellating image gradients and diffr","authors_text":"Aristeidis Tsaris, Debangshu Mukherjee, Jacob Hinkle, Mark Oxley, Mohamed Wahib, Olga Ovchinnikova, Peng Chen, Xiao Wang","cross_cats":["cs.DC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-05-12T19:35:23Z","title":"Image Gradient Decomposition for Parallel and Memory-Efficient Ptychographic Reconstruction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.06327","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:d011245e6f9631e54be4d7ffd1abeb3ba231cbede0d80549c618367082d56229","target":"record","created_at":"2026-07-05T05:25:49Z","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":"9b0f69872b2f8ab44594d0c609cf8a9ff085cacce53bb51a5ff8ad81b47dab25","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2022-05-12T19:35:23Z","title_canon_sha256":"437b571a11c7ff4648c6010a49cc3c75d02ed7bf759a4e23ec955e2c8ca75d5b"},"schema_version":"1.0","source":{"id":"2205.06327","kind":"arxiv","version":2}},"canonical_sha256":"9b1429ca523b26141dd4c91a61d83137295cb279de3734ef9df3d8954d0e7d57","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b1429ca523b26141dd4c91a61d83137295cb279de3734ef9df3d8954d0e7d57","first_computed_at":"2026-07-05T05:25:49.029212Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:25:49.029212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gRNAm+g12Oo7kUH/UfxkTlpmuZo0rf/Xll/I8Uhex/lYh3hrwNmryzazX5oF/jMPSUfU3nNiTAMsNNIwhacqCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:25:49.029728Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.06327","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d011245e6f9631e54be4d7ffd1abeb3ba231cbede0d80549c618367082d56229","sha256:a466d3ee3290cf3661fa82aa491df395df9cc184b70a50e89bcf4aee40aea761"],"state_sha256":"11bec11360ff3296528993cbe31e4df97c4e28ee6b569af7954feccba34eebe5"}