{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:AOAYOVNS6MGJF5TTWN4YJDJZK2","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":"6faa9444afd91650fb9600457826016b89e50f8493faa9804327e26a3c003e23","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-01T13:20:03Z","title_canon_sha256":"8e02932af7779ea180ef0633c32c97bce2d8783a3491e7154386e18318276a5d"},"schema_version":"1.0","source":{"id":"1510.00219","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.00219","created_at":"2026-05-18T01:17:25Z"},{"alias_kind":"arxiv_version","alias_value":"1510.00219v2","created_at":"2026-05-18T01:17:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.00219","created_at":"2026-05-18T01:17:25Z"},{"alias_kind":"pith_short_12","alias_value":"AOAYOVNS6MGJ","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"AOAYOVNS6MGJF5TT","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"AOAYOVNS","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:b04b975ae2a4addb9527ce9cc11470561d0c379830b4019c107e2a279283aad7","target":"graph","created_at":"2026-05-18T01:17:25Z","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 propose a method to detect lower bounds to quantum capacities of a noisy quantum communication channel by means of few measurements. The method is easily implementable and does not require any knowledge about the channel. We test its efficiency by studying its performance for most well known single qubit noisy channels and for the generalised Pauli channel in arbitrary finite dimension.","authors_text":"Chiara Macchiavello, Massimiliano F. Sacchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-01T13:20:03Z","title":"Detecting lower bounds to quantum channel capacities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00219","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:ed07664562c40a22872be83d91fe81b34ab68e1924dfdef914ecdf2c81463b89","target":"record","created_at":"2026-05-18T01:17:25Z","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":"6faa9444afd91650fb9600457826016b89e50f8493faa9804327e26a3c003e23","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-01T13:20:03Z","title_canon_sha256":"8e02932af7779ea180ef0633c32c97bce2d8783a3491e7154386e18318276a5d"},"schema_version":"1.0","source":{"id":"1510.00219","kind":"arxiv","version":2}},"canonical_sha256":"03818755b2f30c92f673b379848d3956aaa56e811c062ba68604ae9fa615ba9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03818755b2f30c92f673b379848d3956aaa56e811c062ba68604ae9fa615ba9b","first_computed_at":"2026-05-18T01:17:25.305868Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:25.305868Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SOo6fVQZRRS9L1CVRuAsSnOADGUpKV+rIu4Uip5EdJC78iplAkVHrds8h6nx09bZzee3bJ/YirMOPJs68+c1BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:25.306412Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.00219","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed07664562c40a22872be83d91fe81b34ab68e1924dfdef914ecdf2c81463b89","sha256:b04b975ae2a4addb9527ce9cc11470561d0c379830b4019c107e2a279283aad7"],"state_sha256":"f51d22c0c23ca016386591a516fca66f8b07787c7c7fbe6006840e89a427a65e"}