{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:A7X4YIGXWOSTDF5HAFRBHAFEYE","short_pith_number":"pith:A7X4YIGX","schema_version":"1.0","canonical_sha256":"07efcc20d7b3a53197a701621380a4c127ab3dced288d1eb7e7487320dffbf8a","source":{"kind":"arxiv","id":"2207.11645","version":1},"attestation_state":"computed","paper":{"title":"Maximum entropy methods for quantum state compatibility problems","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bei Zeng, Chenfeng Cao, Jinfeng Zeng, Ningping Cao, Shi-yao Hou, Youning Li, Zipeng Wu","submitted_at":"2022-07-24T03:00:24Z","abstract_excerpt":"Inferring a quantum system from incomplete information is a common problem in many aspects of quantum information science and applications, where the principle of maximum entropy (MaxEnt) plays an important role. The quantum state compatibility problem asks whether there exists a density matrix $\\rho$ compatible with some given measurement results. Such a compatibility problem can be naturally formulated as a semidefinite programming (SDP), which searches directly for the existence of a $\\rho$. However, for large system dimensions, it is hard to represent $\\rho$ directly, since it needs too ma"},"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":"2207.11645","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2022-07-24T03:00:24Z","cross_cats_sorted":[],"title_canon_sha256":"4483212c06085e60ad0966b316469134108b05db92b2d66047f3eb3935a9baa5","abstract_canon_sha256":"3139f3af661cea418ca11d5dda4633c55889d144e5d150a41b0057b03cc8db04"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:43:07.818690Z","signature_b64":"QgqvPUOmokfWGKYb1o5MG7i5M8syvYeY51lcJwWHSXunuWnaWmznTISUCTcscOE+PWjTJJfFSanr5SNYrplaCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07efcc20d7b3a53197a701621380a4c127ab3dced288d1eb7e7487320dffbf8a","last_reissued_at":"2026-07-05T04:43:07.818288Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:43:07.818288Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Maximum entropy methods for quantum state compatibility problems","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bei Zeng, Chenfeng Cao, Jinfeng Zeng, Ningping Cao, Shi-yao Hou, Youning Li, Zipeng Wu","submitted_at":"2022-07-24T03:00:24Z","abstract_excerpt":"Inferring a quantum system from incomplete information is a common problem in many aspects of quantum information science and applications, where the principle of maximum entropy (MaxEnt) plays an important role. The quantum state compatibility problem asks whether there exists a density matrix $\\rho$ compatible with some given measurement results. Such a compatibility problem can be naturally formulated as a semidefinite programming (SDP), which searches directly for the existence of a $\\rho$. However, for large system dimensions, it is hard to represent $\\rho$ directly, since it needs too ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.11645","kind":"arxiv","version":1},"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/2207.11645/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":"2207.11645","created_at":"2026-07-05T04:43:07.818351+00:00"},{"alias_kind":"arxiv_version","alias_value":"2207.11645v1","created_at":"2026-07-05T04:43:07.818351+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.11645","created_at":"2026-07-05T04:43:07.818351+00:00"},{"alias_kind":"pith_short_12","alias_value":"A7X4YIGXWOST","created_at":"2026-07-05T04:43:07.818351+00:00"},{"alias_kind":"pith_short_16","alias_value":"A7X4YIGXWOSTDF5H","created_at":"2026-07-05T04:43:07.818351+00:00"},{"alias_kind":"pith_short_8","alias_value":"A7X4YIGX","created_at":"2026-07-05T04:43:07.818351+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE","json":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE.json","graph_json":"https://pith.science/api/pith-number/A7X4YIGXWOSTDF5HAFRBHAFEYE/graph.json","events_json":"https://pith.science/api/pith-number/A7X4YIGXWOSTDF5HAFRBHAFEYE/events.json","paper":"https://pith.science/paper/A7X4YIGX"},"agent_actions":{"view_html":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE","download_json":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE.json","view_paper":"https://pith.science/paper/A7X4YIGX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2207.11645&json=true","fetch_graph":"https://pith.science/api/pith-number/A7X4YIGXWOSTDF5HAFRBHAFEYE/graph.json","fetch_events":"https://pith.science/api/pith-number/A7X4YIGXWOSTDF5HAFRBHAFEYE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE/action/storage_attestation","attest_author":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE/action/author_attestation","sign_citation":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE/action/citation_signature","submit_replication":"https://pith.science/pith/A7X4YIGXWOSTDF5HAFRBHAFEYE/action/replication_record"}},"created_at":"2026-07-05T04:43:07.818351+00:00","updated_at":"2026-07-05T04:43:07.818351+00:00"}