{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:7K4ZGF7Y5R4MLJTBVCIHJKQBYD","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":"03435d6f26fb707c4dfeffd03ee977a690150070213c61fa7e92f02f36988a06","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1996-04-29T09:50:09Z","title_canon_sha256":"013fa0a87c3da70524528fa01b38c15a8ee01494c639c6a1fa5eea78b08cb21d"},"schema_version":"1.0","source":{"id":"quant-ph/9604036","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9604036","created_at":"2026-07-04T16:02:39Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9604036v2","created_at":"2026-07-04T16:02:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9604036","created_at":"2026-07-04T16:02:39Z"},{"alias_kind":"pith_short_12","alias_value":"7K4ZGF7Y5R4M","created_at":"2026-07-04T16:02:39Z"},{"alias_kind":"pith_short_16","alias_value":"7K4ZGF7Y5R4MLJTB","created_at":"2026-07-04T16:02:39Z"},{"alias_kind":"pith_short_8","alias_value":"7K4ZGF7Y","created_at":"2026-07-04T16:02:39Z"}],"graph_snapshots":[{"event_id":"sha256:fe6104399747d00e143a0980d90b84f570371541eeda3658f9cd2f7e31e6e485","target":"graph","created_at":"2026-07-04T16:02:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/quant-ph/9604036/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An efficient coding circuit is given for the perfect quantum error correction of a single qubit against arbitrary 1-qubit errors within a 5 qubit code. The circuit presented employs a double `classical' code, i.e., one for bit flips and one for phase shifts. An implementation of this coding circuit on an ion-trap quantum computer is described that requires 26 laser pulses. A further circuit is presented requiring only 24 laser pulses, making it an efficient protection scheme against arbitrary 1-qubit errors. In addition, the performance of two error correction schemes, one based on the quantum","authors_text":"John A. Smolin, Samuel L. Braunstein","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"1996-04-29T09:50:09Z","title":"Perfect quantum error correction coding in 24 laser pulses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9604036","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":"sha256:3fb1a21a79f6e14529e39fa8e2eef48ce76469b77fcaca3ad53a9534ebb477b1","target":"record","created_at":"2026-07-04T16:02:39Z","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":"03435d6f26fb707c4dfeffd03ee977a690150070213c61fa7e92f02f36988a06","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1996-04-29T09:50:09Z","title_canon_sha256":"013fa0a87c3da70524528fa01b38c15a8ee01494c639c6a1fa5eea78b08cb21d"},"schema_version":"1.0","source":{"id":"quant-ph/9604036","kind":"arxiv","version":2}},"canonical_sha256":"fab99317f8ec78c5a661a89074aa01c0f36f36f9b70428a27dae69b80ff05e6f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fab99317f8ec78c5a661a89074aa01c0f36f36f9b70428a27dae69b80ff05e6f","first_computed_at":"2026-07-04T16:02:39.644736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:02:39.644736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FhEEAJOeXYyIL2lPJj+VJHcLYR5SPUwqHRLL57RG9IrtyApej5mBWPyWfo3KUE4GEQp+2ZLBbFkq8VVsoZ5nAA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:02:39.645139Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/9604036","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3fb1a21a79f6e14529e39fa8e2eef48ce76469b77fcaca3ad53a9534ebb477b1","sha256:fe6104399747d00e143a0980d90b84f570371541eeda3658f9cd2f7e31e6e485"],"state_sha256":"8dddc47756f1ed70af9d28661f762bc2843d99650a147ee2c9f9eb593d80ea5c"}