{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:OYUBVYH6CYHNA2SARKLDHMNM3G","short_pith_number":"pith:OYUBVYH6","schema_version":"1.0","canonical_sha256":"76281ae0fe160ed06a408a9633b1acd9a38a056ddff970f86f18451c2d0a035f","source":{"kind":"arxiv","id":"1504.05306","version":2},"attestation_state":"computed","paper":{"title":"Tight Bound on Randomness for Violating the CHSH Inequality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Mingfei Zhao, Shenghao Yang, Siwei Wang, Yifeng Teng","submitted_at":"2015-04-21T04:57:23Z","abstract_excerpt":"Free will (or randomness) has been studied to achieve loophole-free Bell's inequality test and to provide device-independent quantum key distribution security proofs. The required randomness such that a local hidden variable model (LHVM) can violate the Clauser-Horne-Shimony-Holt (CHSH) inequality has been studied, but a tight bound has not been proved for a practical case that i) the device settings of the two parties in the Bell test are independent; and ii) the device settings of each party can be correlated or biased across different runs. Using some information theoretic techniques, we pr"},"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":"1504.05306","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-21T04:57:23Z","cross_cats_sorted":[],"title_canon_sha256":"8663ab4b4b812814a498c7a93113271279ef5d321a6375c81edf193d52c36c42","abstract_canon_sha256":"9a694413e26f4d7956fb57d68988b5f1ea337ca8c05c3bb6a4c542c7f6202e7d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:51.370802Z","signature_b64":"0rvRSdJV1GGvk73cAc2EIInpty+mAD1xNy8oiPdZJrRr30j8+Zvpd99OWlIKS+m69Spyk7Ypv5Ws6cXx7KZQBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76281ae0fe160ed06a408a9633b1acd9a38a056ddff970f86f18451c2d0a035f","last_reissued_at":"2026-05-18T00:47:51.370063Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:51.370063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Tight Bound on Randomness for Violating the CHSH Inequality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Mingfei Zhao, Shenghao Yang, Siwei Wang, Yifeng Teng","submitted_at":"2015-04-21T04:57:23Z","abstract_excerpt":"Free will (or randomness) has been studied to achieve loophole-free Bell's inequality test and to provide device-independent quantum key distribution security proofs. The required randomness such that a local hidden variable model (LHVM) can violate the Clauser-Horne-Shimony-Holt (CHSH) inequality has been studied, but a tight bound has not been proved for a practical case that i) the device settings of the two parties in the Bell test are independent; and ii) the device settings of each party can be correlated or biased across different runs. Using some information theoretic techniques, we pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05306","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":"1504.05306","created_at":"2026-05-18T00:47:51.370185+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.05306v2","created_at":"2026-05-18T00:47:51.370185+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05306","created_at":"2026-05-18T00:47:51.370185+00:00"},{"alias_kind":"pith_short_12","alias_value":"OYUBVYH6CYHN","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_16","alias_value":"OYUBVYH6CYHNA2SA","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_8","alias_value":"OYUBVYH6","created_at":"2026-05-18T12:29:34.919912+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/OYUBVYH6CYHNA2SARKLDHMNM3G","json":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G.json","graph_json":"https://pith.science/api/pith-number/OYUBVYH6CYHNA2SARKLDHMNM3G/graph.json","events_json":"https://pith.science/api/pith-number/OYUBVYH6CYHNA2SARKLDHMNM3G/events.json","paper":"https://pith.science/paper/OYUBVYH6"},"agent_actions":{"view_html":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G","download_json":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G.json","view_paper":"https://pith.science/paper/OYUBVYH6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.05306&json=true","fetch_graph":"https://pith.science/api/pith-number/OYUBVYH6CYHNA2SARKLDHMNM3G/graph.json","fetch_events":"https://pith.science/api/pith-number/OYUBVYH6CYHNA2SARKLDHMNM3G/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G/action/storage_attestation","attest_author":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G/action/author_attestation","sign_citation":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G/action/citation_signature","submit_replication":"https://pith.science/pith/OYUBVYH6CYHNA2SARKLDHMNM3G/action/replication_record"}},"created_at":"2026-05-18T00:47:51.370185+00:00","updated_at":"2026-05-18T00:47:51.370185+00:00"}