{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YJTTVWPZVKM5CGW2J7JAPBSVRD","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":"d9261965d100571b5ac5e5ae7dbe0ea1a38af97b27b8a8764f4fa468db152f2e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-13T15:43:43Z","title_canon_sha256":"bece7ce840cf202ef5cdad736e3b140c212c93fdf1cd27ef138b9b2c1e98525f"},"schema_version":"1.0","source":{"id":"2507.09684","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.09684","created_at":"2026-06-04T01:08:30Z"},{"alias_kind":"arxiv_version","alias_value":"2507.09684v1","created_at":"2026-06-04T01:08:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.09684","created_at":"2026-06-04T01:08:30Z"},{"alias_kind":"pith_short_12","alias_value":"YJTTVWPZVKM5","created_at":"2026-06-04T01:08:30Z"},{"alias_kind":"pith_short_16","alias_value":"YJTTVWPZVKM5CGW2","created_at":"2026-06-04T01:08:30Z"},{"alias_kind":"pith_short_8","alias_value":"YJTTVWPZ","created_at":"2026-06-04T01:08:30Z"}],"graph_snapshots":[{"event_id":"sha256:a3e3267fe2990e4aa4e34978514dd163383e0e477b268cc067a3e163c1c34915","target":"graph","created_at":"2026-06-04T01:08:30Z","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/2507.09684/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Magic state distillation and injection is a promising strategy towards universal fault tolerant quantum computation, especially in architectures based on the bosonic Gottesman-Kitaev-Preskill (GKP) codes where non-Clifford gates remain challenging to implement. Here we address GKP magic state preparation by studying a non-Gaussian unitary mediated by a Kerr interaction which realizes a logical gate $\\sqrt{H}_L$ for square GKP codes. This gate does not directly involve an auxiliary qubit and is compatible with finite energy constraints on the code. Fidelity can be further enhanced using the sma","authors_text":"Baptiste Royer, Jean-Baptiste Bertrand, J\\'er\\'emie Boudreault, Ross Shillito","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-13T15:43:43Z","title":"Using a Kerr interaction for GKP magic state preparation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.09684","kind":"arxiv","version":1},"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":"sha256:3468c6534ff92de1a1632300328c72f911ff2506573232aa681a2b2ffda63bcd","target":"record","created_at":"2026-06-04T01:08:30Z","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":"d9261965d100571b5ac5e5ae7dbe0ea1a38af97b27b8a8764f4fa468db152f2e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-13T15:43:43Z","title_canon_sha256":"bece7ce840cf202ef5cdad736e3b140c212c93fdf1cd27ef138b9b2c1e98525f"},"schema_version":"1.0","source":{"id":"2507.09684","kind":"arxiv","version":1}},"canonical_sha256":"c2673ad9f9aa99d11ada4fd207865588d39eb038ffac478d7fa577e5d5b232ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2673ad9f9aa99d11ada4fd207865588d39eb038ffac478d7fa577e5d5b232ab","first_computed_at":"2026-06-04T01:08:30.398992Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-04T01:08:30.398992Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4OaOHaY9mnGCPw8Ql2BRyFD0bKyBpWhZsNPbShEnFF+nSJGVhQ+trGsYqihHuFOVnS+fcBtPKHCdG4OfcfdtBg==","signature_status":"signed_v1","signed_at":"2026-06-04T01:08:30.399785Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.09684","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3468c6534ff92de1a1632300328c72f911ff2506573232aa681a2b2ffda63bcd","sha256:a3e3267fe2990e4aa4e34978514dd163383e0e477b268cc067a3e163c1c34915"],"state_sha256":"cc157345142a5cb8aa9cc9ab7c9ed333f14ddae88e891258984e6f6d1dcdb40f"}