{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HSSALXJLC6RSSCRWEWFURSWKUZ","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":"0c23216900feed4c8d13e0903b2cb68c77a555116fb8901616a4ac21e036ce7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-06T14:05:42Z","title_canon_sha256":"5172197e28b8a00820411273df2fa0e3190911048d638ef0e40feac5ff4d86d6"},"schema_version":"1.0","source":{"id":"1411.1618","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.1618","created_at":"2026-05-18T01:22:14Z"},{"alias_kind":"arxiv_version","alias_value":"1411.1618v2","created_at":"2026-05-18T01:22:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.1618","created_at":"2026-05-18T01:22:14Z"},{"alias_kind":"pith_short_12","alias_value":"HSSALXJLC6RS","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HSSALXJLC6RSSCRW","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HSSALXJL","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:902c3f33e461de6c898cb7f11de2d9e0800796ba914fefa8dc1a2876c2ee24ea","target":"graph","created_at":"2026-05-18T01:22:14Z","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":"While quantum theory cannot be described by a local hidden variable model, it is nevertheless possible to construct such models that exhibit features commonly associated with quantum mechanics. These models are also used to explore the question of {\\psi}-ontic versus {\\psi}-epistemic theories for quantum mechanics. Spekkens' toy theory is one such model. It arises from classical probabilistic mechanics via a limit on the knowledge an observer may have about the state of a system. The toy theory for the simplest possible underlying system closely resembles stabilizer quantum mechanics, a fragme","authors_text":"Ali Nabi Duman, Miriam Backens","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-06T14:05:42Z","title":"A complete graphical calculus for Spekkens' toy bit theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.1618","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":"sha256:6ccb78457df5129cb58974d8dc8efc22cd07851f38ada14df6324008e0ab1a8e","target":"record","created_at":"2026-05-18T01:22:14Z","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":"0c23216900feed4c8d13e0903b2cb68c77a555116fb8901616a4ac21e036ce7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-06T14:05:42Z","title_canon_sha256":"5172197e28b8a00820411273df2fa0e3190911048d638ef0e40feac5ff4d86d6"},"schema_version":"1.0","source":{"id":"1411.1618","kind":"arxiv","version":2}},"canonical_sha256":"3ca405dd2b17a3290a36258b48cacaa64870477239a9b35af434331d7685f6e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ca405dd2b17a3290a36258b48cacaa64870477239a9b35af434331d7685f6e6","first_computed_at":"2026-05-18T01:22:14.830928Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:14.830928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wXcX5m8cFNtiYbUbw8JVvGpfffbG76e6aiPBRvWA2lzBcTkg/q8vws1Rj1pxTrim3wWzANI84nKgczgwj78HAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:14.831582Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.1618","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ccb78457df5129cb58974d8dc8efc22cd07851f38ada14df6324008e0ab1a8e","sha256:902c3f33e461de6c898cb7f11de2d9e0800796ba914fefa8dc1a2876c2ee24ea"],"state_sha256":"e4782b88a8347a2f92d82622664f56f2581f9b2cd8c45f09c153e54815511d68"}