{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:LH6JBUBY5J2DOJMJR5E7MPATKV","short_pith_number":"pith:LH6JBUBY","canonical_record":{"source":{"id":"2412.04181","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-05T14:20:44Z","cross_cats_sorted":[],"title_canon_sha256":"10d7d162b0efda222e8055b4600b795445f16f7914beca90d653f51349f23b69","abstract_canon_sha256":"6e5e34819c67976cb975a4fb988ece5b5d62c114eb3aee9df57848252adb440f"},"schema_version":"1.0"},"canonical_sha256":"59fc90d038ea743725898f49f63c13554dd4742ffbd20cfb1b4ff44e80c6d82b","source":{"kind":"arxiv","id":"2412.04181","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.04181","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"arxiv_version","alias_value":"2412.04181v1","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.04181","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"pith_short_12","alias_value":"LH6JBUBY5J2D","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"pith_short_16","alias_value":"LH6JBUBY5J2DOJMJ","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"pith_short_8","alias_value":"LH6JBUBY","created_at":"2026-07-05T09:45:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:LH6JBUBY5J2DOJMJR5E7MPATKV","target":"record","payload":{"canonical_record":{"source":{"id":"2412.04181","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-05T14:20:44Z","cross_cats_sorted":[],"title_canon_sha256":"10d7d162b0efda222e8055b4600b795445f16f7914beca90d653f51349f23b69","abstract_canon_sha256":"6e5e34819c67976cb975a4fb988ece5b5d62c114eb3aee9df57848252adb440f"},"schema_version":"1.0"},"canonical_sha256":"59fc90d038ea743725898f49f63c13554dd4742ffbd20cfb1b4ff44e80c6d82b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:45:00.595610Z","signature_b64":"egZN47stXVoR9rlkkFbZdjx/BiHIOps3UvwyoWbe/PEXsh7QEBVZSHIX8tQoFbRGv6SwGnfFNx5S5gjw1JbpBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59fc90d038ea743725898f49f63c13554dd4742ffbd20cfb1b4ff44e80c6d82b","last_reissued_at":"2026-07-05T09:45:00.595196Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:45:00.595196Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.04181","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:45:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wzPiAk+d7R0eBmebKs7fSdguGu7Y71fIOcSdivsBekvPUQq5r6GphO8j8koX7+7CMmNWPCEXPgazLfZFCHi6AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T21:25:43.996940Z"},"content_sha256":"80c4b8466a76cfa420e7abb08411982a1c3dc065e8ad0b5299c5caa08ed84e9c","schema_version":"1.0","event_id":"sha256:80c4b8466a76cfa420e7abb08411982a1c3dc065e8ad0b5299c5caa08ed84e9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:LH6JBUBY5J2DOJMJR5E7MPATKV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pruning qLDPC codes: Towards bivariate bicycle codes with open boundary conditions","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Francisco Revson F. Pereira, Jens Niklas Eberhardt, Vincent Steffan","submitted_at":"2024-12-05T14:20:44Z","abstract_excerpt":"Quantum low-density parity-check codes are promising candidates for quantum error correcting codes as they might offer more resource-efficient alternatives to surface code architectures. In particular, bivariate bicycle codes have recently gained attention due to their 2D-local structure, high encoding rate, and promising performance under simulation. In this work, we will explore how one can transform bivariate bicycle codes defined on lattices with periodic boundary conditions to codes with the same locality properties on a 2D lattice with open boundary conditions. For this, we introduce the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.04181","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/2412.04181/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:45:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nr+qqQr+bMUx18qCVMK0JkfWXVMInv7o9BxgTSUDBKAeMCs/9Z1Q+jJtp1WR7OZq4mjakFcUKnFPHW8kO9TDBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T21:25:43.997483Z"},"content_sha256":"6ce106f4ad9eb0e2a24e3ccf2007e797b613dcb825152a5fed439a2051d5724d","schema_version":"1.0","event_id":"sha256:6ce106f4ad9eb0e2a24e3ccf2007e797b613dcb825152a5fed439a2051d5724d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LH6JBUBY5J2DOJMJR5E7MPATKV/bundle.json","state_url":"https://pith.science/pith/LH6JBUBY5J2DOJMJR5E7MPATKV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LH6JBUBY5J2DOJMJR5E7MPATKV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-07T21:25:44Z","links":{"resolver":"https://pith.science/pith/LH6JBUBY5J2DOJMJR5E7MPATKV","bundle":"https://pith.science/pith/LH6JBUBY5J2DOJMJR5E7MPATKV/bundle.json","state":"https://pith.science/pith/LH6JBUBY5J2DOJMJR5E7MPATKV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LH6JBUBY5J2DOJMJR5E7MPATKV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:LH6JBUBY5J2DOJMJR5E7MPATKV","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":"6e5e34819c67976cb975a4fb988ece5b5d62c114eb3aee9df57848252adb440f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-05T14:20:44Z","title_canon_sha256":"10d7d162b0efda222e8055b4600b795445f16f7914beca90d653f51349f23b69"},"schema_version":"1.0","source":{"id":"2412.04181","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.04181","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"arxiv_version","alias_value":"2412.04181v1","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.04181","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"pith_short_12","alias_value":"LH6JBUBY5J2D","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"pith_short_16","alias_value":"LH6JBUBY5J2DOJMJ","created_at":"2026-07-05T09:45:00Z"},{"alias_kind":"pith_short_8","alias_value":"LH6JBUBY","created_at":"2026-07-05T09:45:00Z"}],"graph_snapshots":[{"event_id":"sha256:6ce106f4ad9eb0e2a24e3ccf2007e797b613dcb825152a5fed439a2051d5724d","target":"graph","created_at":"2026-07-05T09:45:00Z","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/2412.04181/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum low-density parity-check codes are promising candidates for quantum error correcting codes as they might offer more resource-efficient alternatives to surface code architectures. In particular, bivariate bicycle codes have recently gained attention due to their 2D-local structure, high encoding rate, and promising performance under simulation. In this work, we will explore how one can transform bivariate bicycle codes defined on lattices with periodic boundary conditions to codes with the same locality properties on a 2D lattice with open boundary conditions. For this, we introduce the","authors_text":"Francisco Revson F. Pereira, Jens Niklas Eberhardt, Vincent Steffan","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-05T14:20:44Z","title":"Pruning qLDPC codes: Towards bivariate bicycle codes with open boundary conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.04181","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":"sha256:80c4b8466a76cfa420e7abb08411982a1c3dc065e8ad0b5299c5caa08ed84e9c","target":"record","created_at":"2026-07-05T09:45:00Z","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":"6e5e34819c67976cb975a4fb988ece5b5d62c114eb3aee9df57848252adb440f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-05T14:20:44Z","title_canon_sha256":"10d7d162b0efda222e8055b4600b795445f16f7914beca90d653f51349f23b69"},"schema_version":"1.0","source":{"id":"2412.04181","kind":"arxiv","version":1}},"canonical_sha256":"59fc90d038ea743725898f49f63c13554dd4742ffbd20cfb1b4ff44e80c6d82b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59fc90d038ea743725898f49f63c13554dd4742ffbd20cfb1b4ff44e80c6d82b","first_computed_at":"2026-07-05T09:45:00.595196Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:45:00.595196Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"egZN47stXVoR9rlkkFbZdjx/BiHIOps3UvwyoWbe/PEXsh7QEBVZSHIX8tQoFbRGv6SwGnfFNx5S5gjw1JbpBg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:45:00.595610Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.04181","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80c4b8466a76cfa420e7abb08411982a1c3dc065e8ad0b5299c5caa08ed84e9c","sha256:6ce106f4ad9eb0e2a24e3ccf2007e797b613dcb825152a5fed439a2051d5724d"],"state_sha256":"b2330a01e530a42c01d5234324a15989ec436809714ec7ca570a2a7f2585856e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ugeBvkBSVF6W9uiBlAM2m3AZwDyN5scuUIWaebCwT2luYZjHhlMppteUuCQUp84PtAARXx3JVD4LPDzecD1BAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T21:25:44.002307Z","bundle_sha256":"17ce42ee3d5663ee208d0d413c3e18baea5e37bafd61c21771094c35cc40776e"}}