{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:LP7CNIKG3IBGSWQEPG3SYYANAX","short_pith_number":"pith:LP7CNIKG","schema_version":"1.0","canonical_sha256":"5bfe26a146da02695a0479b72c600d05d70ef8de8852aad3927769d1a0acf7d0","source":{"kind":"arxiv","id":"1308.5502","version":2},"attestation_state":"computed","paper":{"title":"Tasks and premises in quantum state determination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math-ph","math.MP"],"primary_cat":"quant-ph","authors_text":"Alessandro Toigo, Claudio Carmeli, Jussi Schultz, Teiko Heinosaari","submitted_at":"2013-08-26T07:39:16Z","abstract_excerpt":"The purpose of quantum tomography is to determine an unknown quantum state from measurement outcome statistics. There are two obvious ways to generalize this setting. First, our task need not be the determination of any possible input state but only some input states, for instance pure states. Second, we may have some prior information, or premise, which guarantees that the input state belongs to some subset of states, for instance the set of states with rank less than half of the dimension of the Hilbert space. We investigate state determination under these two supplemental features, concentr"},"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":"1308.5502","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-08-26T07:39:16Z","cross_cats_sorted":["math-ph","math.MP"],"title_canon_sha256":"6add37fc52cc5eea5f743d18971c4ca1f2df4d9a09e2ba435db019b557cffcbf","abstract_canon_sha256":"d4e7fe022c18b32be3e7bdf4f66976bab8c46920b2752c263e2c114ce99fec7b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:59:34.682707Z","signature_b64":"XTkdb2bBzAeRIvEU/I6rk2DnGZMgst+4zwbdw8CAOwEmCErPtO5+KXo6EdKGtUANksC4OsLflTl7U5hM+eBcBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5bfe26a146da02695a0479b72c600d05d70ef8de8852aad3927769d1a0acf7d0","last_reissued_at":"2026-05-18T02:59:34.681914Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:59:34.681914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Tasks and premises in quantum state determination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math-ph","math.MP"],"primary_cat":"quant-ph","authors_text":"Alessandro Toigo, Claudio Carmeli, Jussi Schultz, Teiko Heinosaari","submitted_at":"2013-08-26T07:39:16Z","abstract_excerpt":"The purpose of quantum tomography is to determine an unknown quantum state from measurement outcome statistics. There are two obvious ways to generalize this setting. First, our task need not be the determination of any possible input state but only some input states, for instance pure states. Second, we may have some prior information, or premise, which guarantees that the input state belongs to some subset of states, for instance the set of states with rank less than half of the dimension of the Hilbert space. We investigate state determination under these two supplemental features, concentr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5502","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1308.5502","created_at":"2026-05-18T02:59:34.682049+00:00"},{"alias_kind":"arxiv_version","alias_value":"1308.5502v2","created_at":"2026-05-18T02:59:34.682049+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5502","created_at":"2026-05-18T02:59:34.682049+00:00"},{"alias_kind":"pith_short_12","alias_value":"LP7CNIKG3IBG","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_16","alias_value":"LP7CNIKG3IBGSWQE","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_8","alias_value":"LP7CNIKG","created_at":"2026-05-18T12:27:51.066281+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/LP7CNIKG3IBGSWQEPG3SYYANAX","json":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX.json","graph_json":"https://pith.science/api/pith-number/LP7CNIKG3IBGSWQEPG3SYYANAX/graph.json","events_json":"https://pith.science/api/pith-number/LP7CNIKG3IBGSWQEPG3SYYANAX/events.json","paper":"https://pith.science/paper/LP7CNIKG"},"agent_actions":{"view_html":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX","download_json":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX.json","view_paper":"https://pith.science/paper/LP7CNIKG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1308.5502&json=true","fetch_graph":"https://pith.science/api/pith-number/LP7CNIKG3IBGSWQEPG3SYYANAX/graph.json","fetch_events":"https://pith.science/api/pith-number/LP7CNIKG3IBGSWQEPG3SYYANAX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX/action/storage_attestation","attest_author":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX/action/author_attestation","sign_citation":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX/action/citation_signature","submit_replication":"https://pith.science/pith/LP7CNIKG3IBGSWQEPG3SYYANAX/action/replication_record"}},"created_at":"2026-05-18T02:59:34.682049+00:00","updated_at":"2026-05-18T02:59:34.682049+00:00"}