{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1998:4IHS63AJDT4K4LM7IEC4UD6UTJ","short_pith_number":"pith:4IHS63AJ","schema_version":"1.0","canonical_sha256":"e20f2f6c091cf8ae2d9f4105ca0fd49a74d9bbe667154b3debc13c144875efe8","source":{"kind":"arxiv","id":"quant-ph/9804047","version":1},"attestation_state":"computed","paper":{"title":"Quantum Information in a Distributed Apparatus","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Subhash Kak","submitted_at":"1998-04-20T16:13:47Z","abstract_excerpt":"We investigate the information provided about a specified distributed apparatus of n units in the measurement of a quantum state. It is shown that, in contrast to such measurement of a classical state, which is bounded by log (n+1) bits, the information in a quantum measurement is bounded by 3.7 x n^(1/2) bits. This means that the use of quantum apparatus offers an exponential advantage over classical apparatus."},"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":"quant-ph/9804047","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1998-04-20T16:13:47Z","cross_cats_sorted":[],"title_canon_sha256":"bafe372c539fba68acf66a761950ce4339aab8bddb09adbd128e4d7bc90ecf79","abstract_canon_sha256":"7b7a46fbc58bccae989a50949abce7fb03cf66661f0458f60ea5392c7c95c8b2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:35:06.620605Z","signature_b64":"PPgQa3IBuXxMLBKnyDoUTSol8pPxEofvJqJZdYD9PKMCykr3NkJUeIlVysJSb6oj4gr0MO2Ce6SiE+3p2xNkCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e20f2f6c091cf8ae2d9f4105ca0fd49a74d9bbe667154b3debc13c144875efe8","last_reissued_at":"2026-05-18T02:35:06.620044Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:35:06.620044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Information in a Distributed Apparatus","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Subhash Kak","submitted_at":"1998-04-20T16:13:47Z","abstract_excerpt":"We investigate the information provided about a specified distributed apparatus of n units in the measurement of a quantum state. It is shown that, in contrast to such measurement of a classical state, which is bounded by log (n+1) bits, the information in a quantum measurement is bounded by 3.7 x n^(1/2) bits. This means that the use of quantum apparatus offers an exponential advantage over classical apparatus."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9804047","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":""},"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":"quant-ph/9804047","created_at":"2026-05-18T02:35:06.620122+00:00"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9804047v1","created_at":"2026-05-18T02:35:06.620122+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9804047","created_at":"2026-05-18T02:35:06.620122+00:00"},{"alias_kind":"pith_short_12","alias_value":"4IHS63AJDT4K","created_at":"2026-05-18T12:25:49.038998+00:00"},{"alias_kind":"pith_short_16","alias_value":"4IHS63AJDT4K4LM7","created_at":"2026-05-18T12:25:49.038998+00:00"},{"alias_kind":"pith_short_8","alias_value":"4IHS63AJ","created_at":"2026-05-18T12:25:49.038998+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/4IHS63AJDT4K4LM7IEC4UD6UTJ","json":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ.json","graph_json":"https://pith.science/api/pith-number/4IHS63AJDT4K4LM7IEC4UD6UTJ/graph.json","events_json":"https://pith.science/api/pith-number/4IHS63AJDT4K4LM7IEC4UD6UTJ/events.json","paper":"https://pith.science/paper/4IHS63AJ"},"agent_actions":{"view_html":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ","download_json":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ.json","view_paper":"https://pith.science/paper/4IHS63AJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=quant-ph/9804047&json=true","fetch_graph":"https://pith.science/api/pith-number/4IHS63AJDT4K4LM7IEC4UD6UTJ/graph.json","fetch_events":"https://pith.science/api/pith-number/4IHS63AJDT4K4LM7IEC4UD6UTJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ/action/storage_attestation","attest_author":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ/action/author_attestation","sign_citation":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ/action/citation_signature","submit_replication":"https://pith.science/pith/4IHS63AJDT4K4LM7IEC4UD6UTJ/action/replication_record"}},"created_at":"2026-05-18T02:35:06.620122+00:00","updated_at":"2026-05-18T02:35:06.620122+00:00"}