{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Y7IV2NY4E6QBAP7FWGSNCJZDX3","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":"e3b188da941b34c0ad0d996fb84fe42d5a851cb445384bfa1dd41309562672c9","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"math.FA","submitted_at":"2013-03-19T00:06:46Z","title_canon_sha256":"43fcd0f45f3080b6e2b6a479431bc9a95bfd346932dbff92cbafd58b7d827d3d"},"schema_version":"1.0","source":{"id":"1303.4458","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4458","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4458v2","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4458","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"pith_short_12","alias_value":"Y7IV2NY4E6QB","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y7IV2NY4E6QBAP7F","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y7IV2NY4","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:83afd948b7e781cfcef162441706ff1f75d0bfe8b88efc6d6974baf52e118f5c","target":"graph","created_at":"2026-05-18T03:19:58Z","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"},"paper":{"abstract_excerpt":"In diffraction imaging, one is tasked with reconstructing a signal from its power spectrum. To resolve the ambiguity in this inverse problem, one might invoke prior knowledge about the signal, but phase retrieval algorithms in this vein have found limited success. One alternative is to create redundancy in the measurement process by illuminating the signal multiple times, distorting the signal each time with a different mask. Despite several recent advances in phase retrieval, the community has yet to construct an ensemble of masks which uniquely determines all signals and admits an efficient ","authors_text":"Afonso S. Bandeira, Dustin G. Mixon, Yutong Chen","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"math.FA","submitted_at":"2013-03-19T00:06:46Z","title":"Phase retrieval from power spectra of masked signals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4458","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":"sha256:00d45b4553182cc35672e4e7cbe228091c585d21678f163979d4ef3aca8f050b","target":"record","created_at":"2026-05-18T03:19:58Z","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":"e3b188da941b34c0ad0d996fb84fe42d5a851cb445384bfa1dd41309562672c9","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"math.FA","submitted_at":"2013-03-19T00:06:46Z","title_canon_sha256":"43fcd0f45f3080b6e2b6a479431bc9a95bfd346932dbff92cbafd58b7d827d3d"},"schema_version":"1.0","source":{"id":"1303.4458","kind":"arxiv","version":2}},"canonical_sha256":"c7d15d371c27a0103fe5b1a4d12723bee73b2263c6c965e3d61cdd5cdcea828c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7d15d371c27a0103fe5b1a4d12723bee73b2263c6c965e3d61cdd5cdcea828c","first_computed_at":"2026-05-18T03:19:58.934077Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:58.934077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7Jd119eWhUepq2qJNCQIZiWHtTVndZydCWp7DR1EJmANl78R9uNStT1/x9GUjER+vOBUxPjwKeQt5wC3OvRaCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:58.934905Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.4458","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00d45b4553182cc35672e4e7cbe228091c585d21678f163979d4ef3aca8f050b","sha256:83afd948b7e781cfcef162441706ff1f75d0bfe8b88efc6d6974baf52e118f5c"],"state_sha256":"02abc20a99853f35ecbcd9d91dc66fb13eea86a1db23ab79e54f54693ec5f110"}