{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:A62S6PIFBRYEAXNOKE6CV7MXJF","short_pith_number":"pith:A62S6PIF","schema_version":"1.0","canonical_sha256":"07b52f3d050c70405dae513c2afd97495a292b2397da212b594b9805ffca7b9d","source":{"kind":"arxiv","id":"2508.06193","version":1},"attestation_state":"computed","paper":{"title":"The loss tolerance of cat breeding for fault-tolerant grid state generation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jonas S. Neergaard-Nielsen, Olga Solodovnikova, Ulrik L. Andersen","submitted_at":"2025-08-08T10:15:31Z","abstract_excerpt":"The development of a continuous-variable photonic quantum computer depends on the reliable preparation of high-quality Gottesman-Kitaev-Preskill states. The most promising GKP preparation scheme is the cat breeding protocol, which can generate GKP states deterministically given a source of squeezed cat states, using beam splitters, homodyne detectors and a feedforward displacement. However, analyzing the performance of the protocol under loss is cumbersome due to the exponential scaling of the system. By representing the Wigner function of the input states as a linear combination of Gaussians,"},"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":"2508.06193","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-08T10:15:31Z","cross_cats_sorted":[],"title_canon_sha256":"659129ef0a08aa2ce8b6195bcf3358dcc6e60a6a48bd099973d20f1599606cc2","abstract_canon_sha256":"91bd28fead8553b7757636b1403d9ddbda7cf74110ce60f63ba7667f84dc1636"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:50:51.735303Z","signature_b64":"1hSrVMUzgV895DHS1DC6LI2ILTLXnfO00Ojq/31fDMWsZNbn2sAeAcri/nGIsrihgnW5gji/Br/sA5fOu8TVCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07b52f3d050c70405dae513c2afd97495a292b2397da212b594b9805ffca7b9d","last_reissued_at":"2026-07-05T11:50:51.734731Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:50:51.734731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The loss tolerance of cat breeding for fault-tolerant grid state generation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jonas S. Neergaard-Nielsen, Olga Solodovnikova, Ulrik L. Andersen","submitted_at":"2025-08-08T10:15:31Z","abstract_excerpt":"The development of a continuous-variable photonic quantum computer depends on the reliable preparation of high-quality Gottesman-Kitaev-Preskill states. The most promising GKP preparation scheme is the cat breeding protocol, which can generate GKP states deterministically given a source of squeezed cat states, using beam splitters, homodyne detectors and a feedforward displacement. However, analyzing the performance of the protocol under loss is cumbersome due to the exponential scaling of the system. By representing the Wigner function of the input states as a linear combination of Gaussians,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.06193","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2508.06193/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2508.06193","created_at":"2026-07-05T11:50:51.734794+00:00"},{"alias_kind":"arxiv_version","alias_value":"2508.06193v1","created_at":"2026-07-05T11:50:51.734794+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.06193","created_at":"2026-07-05T11:50:51.734794+00:00"},{"alias_kind":"pith_short_12","alias_value":"A62S6PIFBRYE","created_at":"2026-07-05T11:50:51.734794+00:00"},{"alias_kind":"pith_short_16","alias_value":"A62S6PIFBRYEAXNO","created_at":"2026-07-05T11:50:51.734794+00:00"},{"alias_kind":"pith_short_8","alias_value":"A62S6PIF","created_at":"2026-07-05T11:50:51.734794+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.02201","citing_title":"Iterative $C_Z$-gate-based protocol for squeezed Schr\\\"odinger cat state engineering","ref_index":77,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF","json":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF.json","graph_json":"https://pith.science/api/pith-number/A62S6PIFBRYEAXNOKE6CV7MXJF/graph.json","events_json":"https://pith.science/api/pith-number/A62S6PIFBRYEAXNOKE6CV7MXJF/events.json","paper":"https://pith.science/paper/A62S6PIF"},"agent_actions":{"view_html":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF","download_json":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF.json","view_paper":"https://pith.science/paper/A62S6PIF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2508.06193&json=true","fetch_graph":"https://pith.science/api/pith-number/A62S6PIFBRYEAXNOKE6CV7MXJF/graph.json","fetch_events":"https://pith.science/api/pith-number/A62S6PIFBRYEAXNOKE6CV7MXJF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF/action/storage_attestation","attest_author":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF/action/author_attestation","sign_citation":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF/action/citation_signature","submit_replication":"https://pith.science/pith/A62S6PIFBRYEAXNOKE6CV7MXJF/action/replication_record"}},"created_at":"2026-07-05T11:50:51.734794+00:00","updated_at":"2026-07-05T11:50:51.734794+00:00"}