{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ILC46MFLPDNY5XDBA5IHLNBTKD","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":"b78a7321cebcb6e0f0477ee8f9a66d801c735ccb13db4c6b0875f9949b8d834f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-03T15:44:25Z","title_canon_sha256":"e19aecc89ff951c5eaf73af535841428f7b6d7d802c87c0a70ff250075d53f2f"},"schema_version":"1.0","source":{"id":"1407.0959","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.0959","created_at":"2026-05-18T02:48:25Z"},{"alias_kind":"arxiv_version","alias_value":"1407.0959v1","created_at":"2026-05-18T02:48:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.0959","created_at":"2026-05-18T02:48:25Z"},{"alias_kind":"pith_short_12","alias_value":"ILC46MFLPDNY","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"ILC46MFLPDNY5XDB","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"ILC46MFL","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:82c5ee0120102b298864c818e32661f1003348ad21cfdce70a2e54a163bfe3e0","target":"graph","created_at":"2026-05-18T02:48:25Z","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":"We give a detailed account of an efficient search algorithm for the data pattern tomography proposed by J. Rehacek, D. Mogilevtsev, and Z. Hradil [Phys. Rev. Lett.~\\textbf{105}, 010402 (2010)], where the quantum state of a system is reconstructed without a priori knowledge about the measuring setup. The method is especially suited for experiments involving complex detectors, which are difficult to calibrate and characterize. We illustrate the approach with the case study of the homodyne detection of a nonclassical photon state.","authors_text":"B. Stoklasa, C. Silberhorn, D. Mogilevtsev, G. Harder, J. Rehacek, L. L. Sanchez-Soto, L. Motka, V. Karasek, Z. Hradil","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-03T15:44:25Z","title":"Efficient algorithm for optimizing data pattern tomography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.0959","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:f798eca76dfe5fb4e3fe776643838466e1fe37db07e521003e24cc28fee41181","target":"record","created_at":"2026-05-18T02:48:25Z","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":"b78a7321cebcb6e0f0477ee8f9a66d801c735ccb13db4c6b0875f9949b8d834f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-03T15:44:25Z","title_canon_sha256":"e19aecc89ff951c5eaf73af535841428f7b6d7d802c87c0a70ff250075d53f2f"},"schema_version":"1.0","source":{"id":"1407.0959","kind":"arxiv","version":1}},"canonical_sha256":"42c5cf30ab78db8edc61075075b43350cb1a2001348a02521048479e293448f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42c5cf30ab78db8edc61075075b43350cb1a2001348a02521048479e293448f1","first_computed_at":"2026-05-18T02:48:25.067398Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:48:25.067398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5QDbozaidSFORJdMhqUBsnDDnzba2agTR8R91qBi8Nk3NhcSm4dwfX28x2kjs45PRvHGVrlTxp8P89m5bKcFDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:48:25.067846Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.0959","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f798eca76dfe5fb4e3fe776643838466e1fe37db07e521003e24cc28fee41181","sha256:82c5ee0120102b298864c818e32661f1003348ad21cfdce70a2e54a163bfe3e0"],"state_sha256":"3234962104a0de1a75e492e90291b0db913c3b76035c4e237475f491cb6598ee"}