{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PANLPJ6HL7MUTSJPEIQMGNBFGO","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":"f99a675c54b15cbf3633ca6688bf2b16f2c80ecc7fba25f4d6e3c1228945dba7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-30T13:48:14Z","title_canon_sha256":"717619fc660195e0633343d042792e0c235c23c97daf02fda9b397b60d0487fd"},"schema_version":"1.0","source":{"id":"1504.08225","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.08225","created_at":"2026-05-18T01:25:00Z"},{"alias_kind":"arxiv_version","alias_value":"1504.08225v3","created_at":"2026-05-18T01:25:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.08225","created_at":"2026-05-18T01:25:00Z"},{"alias_kind":"pith_short_12","alias_value":"PANLPJ6HL7MU","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"PANLPJ6HL7MUTSJP","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"PANLPJ6H","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:703bc616486bf6f4de050adfbe454d4c73813322e739c08e051b0d267535f6cc","target":"graph","created_at":"2026-05-18T01:25:00Z","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":"In quantum information theory, the reliable and effective detection of entanglement is of paramount importance. However, given an unknown state, assessing its entanglement is a challenging task. To attack this problem, we investigate the use of random local measurements, from which entanglement witnesses are then constructed via semidefinite programming methods. We propose a scheme of successively increasing the number of measurements until the presence of entanglement can be unambiguously concluded, and investigate its performance in various examples.","authors_text":"Dagmar Bru{\\ss}, Hermann Kampermann, Jochen Szangolies","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-30T13:48:14Z","title":"Detecting Entanglement of Unknown Quantum States with Random Measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.08225","kind":"arxiv","version":3},"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":"sha256:55ef1f820a8feb367c397d88ecfcbf638c8252c0e2751fa44b01ec789da6a181","target":"record","created_at":"2026-05-18T01:25:00Z","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":"f99a675c54b15cbf3633ca6688bf2b16f2c80ecc7fba25f4d6e3c1228945dba7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-30T13:48:14Z","title_canon_sha256":"717619fc660195e0633343d042792e0c235c23c97daf02fda9b397b60d0487fd"},"schema_version":"1.0","source":{"id":"1504.08225","kind":"arxiv","version":3}},"canonical_sha256":"781ab7a7c75fd949c92f2220c33425338f8cadb331fe97b89a173cc5dae8084a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"781ab7a7c75fd949c92f2220c33425338f8cadb331fe97b89a173cc5dae8084a","first_computed_at":"2026-05-18T01:25:00.709693Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:00.709693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kc8j5Sef5EDXAd54X2OXfLnvRqnPIjvpSH7R7lWZXChG4wg67Kg87Lt4BuNsCRIyMRs6ARTHJ+n+L3Jaljs/AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:00.710485Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.08225","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55ef1f820a8feb367c397d88ecfcbf638c8252c0e2751fa44b01ec789da6a181","sha256:703bc616486bf6f4de050adfbe454d4c73813322e739c08e051b0d267535f6cc"],"state_sha256":"94b5ce60bbaf6372ab681d9abd1cc59da23c72c1b13f79ab2a4abadb4570ca49"}