{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:D7HOYLQWTOAH37UKPHA2GVUA6O","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":"88314031294a138b81bb14820e102ec9fbb90f19097401f5c43513c363a02066","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-01-22T06:47:01Z","title_canon_sha256":"c3f969b109e0963e33d12208bc918e375e0b4561e0dc958eaf690c8ac5fef7d8"},"schema_version":"1.0","source":{"id":"1701.06130","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.06130","created_at":"2026-05-18T00:12:02Z"},{"alias_kind":"arxiv_version","alias_value":"1701.06130v2","created_at":"2026-05-18T00:12:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.06130","created_at":"2026-05-18T00:12:02Z"},{"alias_kind":"pith_short_12","alias_value":"D7HOYLQWTOAH","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"D7HOYLQWTOAH37UK","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"D7HOYLQW","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:11051b11e618defdd4666aed1cb47bd2b1d42c9292fce98ce7260a00f306bab9","target":"graph","created_at":"2026-05-18T00:12:02Z","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 extend the optimal filtering equation known from the Stratonovich filtering theory on the quantum process case. The used observation model is based on an indirect measurement method, where the measurement is performed on an ancilla system that is interacted with an unknown one. Observation model for single qudit system is proposed.","authors_text":"L.A. Markovich, V.I. Man'ko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-01-22T06:47:01Z","title":"Optimal nonlinear filtering of quantum state"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.06130","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":"sha256:0fb7b222176e49f09a974a0e941417a75c04d021150699cca581de4de9246d7f","target":"record","created_at":"2026-05-18T00:12:02Z","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":"88314031294a138b81bb14820e102ec9fbb90f19097401f5c43513c363a02066","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-01-22T06:47:01Z","title_canon_sha256":"c3f969b109e0963e33d12208bc918e375e0b4561e0dc958eaf690c8ac5fef7d8"},"schema_version":"1.0","source":{"id":"1701.06130","kind":"arxiv","version":2}},"canonical_sha256":"1fceec2e169b807dfe8a79c1a35680f3b32fdfaa45366a3e4fa82fe424a2fc90","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1fceec2e169b807dfe8a79c1a35680f3b32fdfaa45366a3e4fa82fe424a2fc90","first_computed_at":"2026-05-18T00:12:02.630012Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:02.630012Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a6/ngYVngZSyYJ+dtv3y8tXD0I2mt4lflOKc/Eg77g8d8qFN6ejAiVD6CIcz6DgH+NwZ5uMS8E4hjBvZiJ8CDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:02.630586Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.06130","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0fb7b222176e49f09a974a0e941417a75c04d021150699cca581de4de9246d7f","sha256:11051b11e618defdd4666aed1cb47bd2b1d42c9292fce98ce7260a00f306bab9"],"state_sha256":"417e21d5b280045ec464f5de17244609392a9df32883be94a4bcd5c763d5671d"}