{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:7EYTXN4HYWOBFHJJ5XACRCPTJQ","short_pith_number":"pith:7EYTXN4H","schema_version":"1.0","canonical_sha256":"f9313bb787c59c129d29edc02889f34c3e703b72f03c53642bc3190d7ee4c001","source":{"kind":"arxiv","id":"1908.06942","version":3},"attestation_state":"computed","paper":{"title":"Efficient quantum measurement of Pauli operators in the presence of finite sampling error","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Barnaby van Straaten, Daochen Wang, Earl Campbell, Ophelia Crawford, Stephen Brierley, Thomas Parks","submitted_at":"2019-08-19T17:27:18Z","abstract_excerpt":"Estimating the expectation value of an operator corresponding to an observable is a fundamental task in quantum computation. It is often impossible to obtain such estimates directly, as the computer is restricted to measuring in a fixed computational basis. One common solution splits the operator into a weighted sum of Pauli operators and measures each separately, at the cost of many measurements. An improved version collects mutually commuting Pauli operators together before measuring all operators within a collection simultaneously. The effectiveness of doing this depends on two factors. Fir"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1908.06942","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2019-08-19T17:27:18Z","cross_cats_sorted":[],"title_canon_sha256":"f0a2635c6dce2efe349a8c1249806eae284bb47fa5197fd797a8ebef2c8b299c","abstract_canon_sha256":"e2674dc583df699deab54346cfc780d5e1c513c003a0b8b81e9e10baf1cf6f5b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:09:35.144489Z","signature_b64":"ZVJ5R5prldYn8y4ivkqGClVpQDE3NvFtoaVEHvVDfeIMItfqpvmE5kwD1zzVRRb+nr9RWRDtlMNPYP7mEyYBDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9313bb787c59c129d29edc02889f34c3e703b72f03c53642bc3190d7ee4c001","last_reissued_at":"2026-07-05T02:09:35.144061Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:09:35.144061Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Efficient quantum measurement of Pauli operators in the presence of finite sampling error","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Barnaby van Straaten, Daochen Wang, Earl Campbell, Ophelia Crawford, Stephen Brierley, Thomas Parks","submitted_at":"2019-08-19T17:27:18Z","abstract_excerpt":"Estimating the expectation value of an operator corresponding to an observable is a fundamental task in quantum computation. It is often impossible to obtain such estimates directly, as the computer is restricted to measuring in a fixed computational basis. One common solution splits the operator into a weighted sum of Pauli operators and measures each separately, at the cost of many measurements. An improved version collects mutually commuting Pauli operators together before measuring all operators within a collection simultaneously. The effectiveness of doing this depends on two factors. Fir"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06942","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.06942/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1908.06942","created_at":"2026-07-05T02:09:35.144116+00:00"},{"alias_kind":"arxiv_version","alias_value":"1908.06942v3","created_at":"2026-07-05T02:09:35.144116+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06942","created_at":"2026-07-05T02:09:35.144116+00:00"},{"alias_kind":"pith_short_12","alias_value":"7EYTXN4HYWOB","created_at":"2026-07-05T02:09:35.144116+00:00"},{"alias_kind":"pith_short_16","alias_value":"7EYTXN4HYWOBFHJJ","created_at":"2026-07-05T02:09:35.144116+00:00"},{"alias_kind":"pith_short_8","alias_value":"7EYTXN4H","created_at":"2026-07-05T02:09:35.144116+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2404.05108","citing_title":"Efficient Gradient Estimation for Parameterized Quantum Systems with Lie Algebraic Symmetries","ref_index":8,"is_internal_anchor":false},{"citing_arxiv_id":"2504.03019","citing_title":"State Specific Measurement Protocols for the Variational Quantum Eigensolver","ref_index":23,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ","json":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ.json","graph_json":"https://pith.science/api/pith-number/7EYTXN4HYWOBFHJJ5XACRCPTJQ/graph.json","events_json":"https://pith.science/api/pith-number/7EYTXN4HYWOBFHJJ5XACRCPTJQ/events.json","paper":"https://pith.science/paper/7EYTXN4H"},"agent_actions":{"view_html":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ","download_json":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ.json","view_paper":"https://pith.science/paper/7EYTXN4H","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1908.06942&json=true","fetch_graph":"https://pith.science/api/pith-number/7EYTXN4HYWOBFHJJ5XACRCPTJQ/graph.json","fetch_events":"https://pith.science/api/pith-number/7EYTXN4HYWOBFHJJ5XACRCPTJQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ/action/storage_attestation","attest_author":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ/action/author_attestation","sign_citation":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ/action/citation_signature","submit_replication":"https://pith.science/pith/7EYTXN4HYWOBFHJJ5XACRCPTJQ/action/replication_record"}},"created_at":"2026-07-05T02:09:35.144116+00:00","updated_at":"2026-07-05T02:09:35.144116+00:00"}