{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:P2HUOLWYPJ3XJZNEFRIHLLC2GI","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":"74d949d9a9e7a4e1c51bab8e12202db40bd2ef648564b210e4f4bf570c25340c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-19T17:38:50Z","title_canon_sha256":"1546d525b5b342ff48fca7b38a948ee1b24620f0669b4eb00004936b9e47fd1e"},"schema_version":"1.0","source":{"id":"1406.5121","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.5121","created_at":"2026-05-18T02:49:20Z"},{"alias_kind":"arxiv_version","alias_value":"1406.5121v1","created_at":"2026-05-18T02:49:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.5121","created_at":"2026-05-18T02:49:20Z"},{"alias_kind":"pith_short_12","alias_value":"P2HUOLWYPJ3X","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"P2HUOLWYPJ3XJZNE","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"P2HUOLWY","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:efc191eba7326d70ede1e744e4e6f73f051690fbf4335a15ed850e9b9be3524b","target":"graph","created_at":"2026-05-18T02:49:20Z","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":"An optimal estimator of quantum states based on a modified Kalman Filter is presented in this work. Such estimator acts after state measurement, allowing to obtain an optimal estimation of quantum state resulting in the output of any quantum image algorithm. Besides, a new criteria, logic, and arithmetic based on projections onto vertical axis of Bloch Sphere exclusively are presented too. This approach will allow us: 1) a simpler development of logic and arithmetic quantum operations, where they will closer to those used in the classical digital image processing algorithms, 2) building simple","authors_text":"Mario Mastriani","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-19T17:38:50Z","title":"Optimal Estimation of States in Quantum Image Processing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.5121","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:a0f4d15e723c9e14c6d443510880cda534c3b6b78da7551ed033b929bbe2e52f","target":"record","created_at":"2026-05-18T02:49:20Z","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":"74d949d9a9e7a4e1c51bab8e12202db40bd2ef648564b210e4f4bf570c25340c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-19T17:38:50Z","title_canon_sha256":"1546d525b5b342ff48fca7b38a948ee1b24620f0669b4eb00004936b9e47fd1e"},"schema_version":"1.0","source":{"id":"1406.5121","kind":"arxiv","version":1}},"canonical_sha256":"7e8f472ed87a7774e5a42c5075ac5a32141ec9c2c4a2d998c8f2e2d8b048b4eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e8f472ed87a7774e5a42c5075ac5a32141ec9c2c4a2d998c8f2e2d8b048b4eb","first_computed_at":"2026-05-18T02:49:20.903875Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:49:20.903875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EfdolkIO0AWEWj1dNl/tZC17QUUpqhN8f6V56E2CI5iFzvBRQMf6yz1yOYcB8/Tu/YmpRvhXtELVnSHJuew2Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:49:20.904424Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.5121","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0f4d15e723c9e14c6d443510880cda534c3b6b78da7551ed033b929bbe2e52f","sha256:efc191eba7326d70ede1e744e4e6f73f051690fbf4335a15ed850e9b9be3524b"],"state_sha256":"7138611677baeaae0b13801e488d31aa8c1f662d1541e5df82ac5acafaa8cc33"}