{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:X24LV36YS4LU2B546FPTPANN4K","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":"73df7b469b901c94211f56d00322f90534815a08247d77b48f328400389bd4a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-05-14T14:33:08Z","title_canon_sha256":"0d26f7b08aa0f0d6337eb02f59945c22b51b1f3b58532418e3d07173e12afc8c"},"schema_version":"1.0","source":{"id":"2005.07016","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.07016","created_at":"2026-07-05T02:03:29Z"},{"alias_kind":"arxiv_version","alias_value":"2005.07016v2","created_at":"2026-07-05T02:03:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.07016","created_at":"2026-07-05T02:03:29Z"},{"alias_kind":"pith_short_12","alias_value":"X24LV36YS4LU","created_at":"2026-07-05T02:03:29Z"},{"alias_kind":"pith_short_16","alias_value":"X24LV36YS4LU2B54","created_at":"2026-07-05T02:03:29Z"},{"alias_kind":"pith_short_8","alias_value":"X24LV36Y","created_at":"2026-07-05T02:03:29Z"}],"graph_snapshots":[{"event_id":"sha256:0a7641b61d59efbc34e2b4c59d8e17d87cdce1e69354afe66cc7d7fdfb47ed4c","target":"graph","created_at":"2026-07-05T02:03:29Z","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/2005.07016/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that belief propagation combined with ordered statistics post-processing is a general decoder for quantum low density parity check codes constructed from the hypergraph product. To this end, we run numerical simulations of the decoder applied to three families of hypergraph product code: topological codes, fixed-rate random codes and a new class of codes that we call semi-topological codes. Our new code families share properties of both topological and random hypergraph product codes, with a construction that allows for a finely-controlled trade-off between code threshold and stabilize","authors_text":"David R. White, Earl T. Campbell, Joschka Roffe, Simon Burton","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-05-14T14:33:08Z","title":"Decoding Across the Quantum LDPC Code Landscape"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.07016","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:a5e51a4170a98afd0c419455e222c3696029fe9a4e6339bd79ec1816ba249ecd","target":"record","created_at":"2026-07-05T02:03:29Z","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":"73df7b469b901c94211f56d00322f90534815a08247d77b48f328400389bd4a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-05-14T14:33:08Z","title_canon_sha256":"0d26f7b08aa0f0d6337eb02f59945c22b51b1f3b58532418e3d07173e12afc8c"},"schema_version":"1.0","source":{"id":"2005.07016","kind":"arxiv","version":2}},"canonical_sha256":"beb8baefd897174d07bcf15f3781ade2bc8b642f431989d84ac17efcf168911a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"beb8baefd897174d07bcf15f3781ade2bc8b642f431989d84ac17efcf168911a","first_computed_at":"2026-07-05T02:03:29.977701Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:03:29.977701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HT1BEMu6ybkAfVsNgQ2jMcesiSOQoC0QcDuZfbWdsfNt9r+7YXqiEWUXjh3tSo4t7I9kppzxpoQGyCaBTjMuDg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:03:29.978158Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.07016","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5e51a4170a98afd0c419455e222c3696029fe9a4e6339bd79ec1816ba249ecd","sha256:0a7641b61d59efbc34e2b4c59d8e17d87cdce1e69354afe66cc7d7fdfb47ed4c"],"state_sha256":"f938441ecea50117379664210215cdd9cdd6b3aec8f9e4613250c91202cc03f1"}