{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:4ORSXFFALMZG4C3MQBSWYZDHLI","short_pith_number":"pith:4ORSXFFA","schema_version":"1.0","canonical_sha256":"e3a32b94a05b326e0b6c80656c64675a13723b760fc21cffa969b537f2c072ce","source":{"kind":"arxiv","id":"1501.05969","version":2},"attestation_state":"computed","paper":{"title":"Quantum Superpositions Cannot be Epistemic","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"John-Mark A. Allen","submitted_at":"2015-01-23T21:44:44Z","abstract_excerpt":"Quantum superposition states are behind many of the curious phenomena exhibited by quantum systems, including Bell non-locality, quantum interference, quantum computational speed-up, and the measurement problem. At the same time, many qualitative properties of quantum superpositions can also be observed in classical probability distributions leading to a suspicion that superpositions may be explicable as probability distributions over less problematic states, that is, a suspicion that superpositions are \\emph{epistemic}. Here, it is proved that, for any quantum system of dimension $d>3$, this "},"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":"1501.05969","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-01-23T21:44:44Z","cross_cats_sorted":[],"title_canon_sha256":"092071effe1018624635c502c201e1cefc03f8685549634f6f12638d040f1592","abstract_canon_sha256":"1d68f1f6719493d0f15ee639cb0a1dac805042831c9148dfd6834b7994afa288"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:37.001955Z","signature_b64":"rkxIx4bP9VzXzvBZiBIwfYQ3se1N/qWhs/DpJa7HQfTxpwVIvjRtyELhHJVzGD4qupjpQAFmgMJ8h5ZQge7NAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3a32b94a05b326e0b6c80656c64675a13723b760fc21cffa969b537f2c072ce","last_reissued_at":"2026-05-18T01:03:37.001255Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:37.001255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Superpositions Cannot be Epistemic","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"John-Mark A. Allen","submitted_at":"2015-01-23T21:44:44Z","abstract_excerpt":"Quantum superposition states are behind many of the curious phenomena exhibited by quantum systems, including Bell non-locality, quantum interference, quantum computational speed-up, and the measurement problem. At the same time, many qualitative properties of quantum superpositions can also be observed in classical probability distributions leading to a suspicion that superpositions may be explicable as probability distributions over less problematic states, that is, a suspicion that superpositions are \\emph{epistemic}. Here, it is proved that, for any quantum system of dimension $d>3$, this "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.05969","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":"1501.05969","created_at":"2026-05-18T01:03:37.001385+00:00"},{"alias_kind":"arxiv_version","alias_value":"1501.05969v2","created_at":"2026-05-18T01:03:37.001385+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.05969","created_at":"2026-05-18T01:03:37.001385+00:00"},{"alias_kind":"pith_short_12","alias_value":"4ORSXFFALMZG","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_16","alias_value":"4ORSXFFALMZG4C3M","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_8","alias_value":"4ORSXFFA","created_at":"2026-05-18T12:29:05.191682+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/4ORSXFFALMZG4C3MQBSWYZDHLI","json":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI.json","graph_json":"https://pith.science/api/pith-number/4ORSXFFALMZG4C3MQBSWYZDHLI/graph.json","events_json":"https://pith.science/api/pith-number/4ORSXFFALMZG4C3MQBSWYZDHLI/events.json","paper":"https://pith.science/paper/4ORSXFFA"},"agent_actions":{"view_html":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI","download_json":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI.json","view_paper":"https://pith.science/paper/4ORSXFFA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1501.05969&json=true","fetch_graph":"https://pith.science/api/pith-number/4ORSXFFALMZG4C3MQBSWYZDHLI/graph.json","fetch_events":"https://pith.science/api/pith-number/4ORSXFFALMZG4C3MQBSWYZDHLI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI/action/storage_attestation","attest_author":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI/action/author_attestation","sign_citation":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI/action/citation_signature","submit_replication":"https://pith.science/pith/4ORSXFFALMZG4C3MQBSWYZDHLI/action/replication_record"}},"created_at":"2026-05-18T01:03:37.001385+00:00","updated_at":"2026-05-18T01:03:37.001385+00:00"}