{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:V64B5YNNLSG5IT4AI3FMSA7KQD","short_pith_number":"pith:V64B5YNN","canonical_record":{"source":{"id":"quant-ph/0108131","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2001-08-29T19:14:46Z","cross_cats_sorted":[],"title_canon_sha256":"0c642f1b61653651d0e85d4c15fb4f728bf859208e9e15597066bbf72aad311a","abstract_canon_sha256":"400a1280286746d46442fc9b7c5eba36ca1b9ba293dadb05035be315658f5395"},"schema_version":"1.0"},"canonical_sha256":"afb81ee1ad5c8dd44f8046cac903ea80f29bf0e0cdfc60e204034b8c42782604","source":{"kind":"arxiv","id":"quant-ph/0108131","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0108131","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0108131v1","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0108131","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"pith_short_12","alias_value":"V64B5YNNLSG5","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"pith_short_16","alias_value":"V64B5YNNLSG5IT4A","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"pith_short_8","alias_value":"V64B5YNN","created_at":"2026-07-04T14:45:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:V64B5YNNLSG5IT4AI3FMSA7KQD","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0108131","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2001-08-29T19:14:46Z","cross_cats_sorted":[],"title_canon_sha256":"0c642f1b61653651d0e85d4c15fb4f728bf859208e9e15597066bbf72aad311a","abstract_canon_sha256":"400a1280286746d46442fc9b7c5eba36ca1b9ba293dadb05035be315658f5395"},"schema_version":"1.0"},"canonical_sha256":"afb81ee1ad5c8dd44f8046cac903ea80f29bf0e0cdfc60e204034b8c42782604","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:45:41.509877Z","signature_b64":"xc0k9AQcKAbQCR21my31rqGlvibWTHHbZzw05Hjsqn4QFNnrjOw2/1WCDi5jXMrEtsLIeEQZvE+65rCw2mChBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"afb81ee1ad5c8dd44f8046cac903ea80f29bf0e0cdfc60e204034b8c42782604","last_reissued_at":"2026-07-04T14:45:41.509510Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:45:41.509510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0108131","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":"2026-07-04T14:45:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rI6G7KZDVc72dYKsWW8gGJ3cof3KgOdUqQiZljmWyVoCMUT/A8y3Fdpu6jV4PZ2z5/DSFndM1ydwhzkszMf3Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:10:32.455130Z"},"content_sha256":"61760741abc1e2c1681287c0196e99530c0c167b1c98d43ab7f028086df488a1","schema_version":"1.0","event_id":"sha256:61760741abc1e2c1681287c0196e99530c0c167b1c98d43ab7f028086df488a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:V64B5YNNLSG5IT4AI3FMSA7KQD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Proposed Quantum Low Density Parity Check Code","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Michael S. Postol","submitted_at":"2001-08-29T19:14:46Z","abstract_excerpt":"We propose a new CSS code based on the finite geometry low density parity check code of Kou, Lin, and Fossorier."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0108131","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/quant-ph/0108131/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":"2026-07-04T14:45:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lAc30rj5HCYDU1yM1xbNOUIkvjG8JpPhpHcdCslM8bVL6oRXh3DOrEfWDM9MyUYoF99UNKXnRVOOlk1JemHGAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:10:32.455621Z"},"content_sha256":"29fac184fdaa2641f7d3d403c1de025ad9a570846be782eb0ed6e7d45b848e23","schema_version":"1.0","event_id":"sha256:29fac184fdaa2641f7d3d403c1de025ad9a570846be782eb0ed6e7d45b848e23"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V64B5YNNLSG5IT4AI3FMSA7KQD/bundle.json","state_url":"https://pith.science/pith/V64B5YNNLSG5IT4AI3FMSA7KQD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V64B5YNNLSG5IT4AI3FMSA7KQD/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":"2026-08-04T07:10:32Z","links":{"resolver":"https://pith.science/pith/V64B5YNNLSG5IT4AI3FMSA7KQD","bundle":"https://pith.science/pith/V64B5YNNLSG5IT4AI3FMSA7KQD/bundle.json","state":"https://pith.science/pith/V64B5YNNLSG5IT4AI3FMSA7KQD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V64B5YNNLSG5IT4AI3FMSA7KQD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:V64B5YNNLSG5IT4AI3FMSA7KQD","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":"400a1280286746d46442fc9b7c5eba36ca1b9ba293dadb05035be315658f5395","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2001-08-29T19:14:46Z","title_canon_sha256":"0c642f1b61653651d0e85d4c15fb4f728bf859208e9e15597066bbf72aad311a"},"schema_version":"1.0","source":{"id":"quant-ph/0108131","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0108131","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0108131v1","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0108131","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"pith_short_12","alias_value":"V64B5YNNLSG5","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"pith_short_16","alias_value":"V64B5YNNLSG5IT4A","created_at":"2026-07-04T14:45:41Z"},{"alias_kind":"pith_short_8","alias_value":"V64B5YNN","created_at":"2026-07-04T14:45:41Z"}],"graph_snapshots":[{"event_id":"sha256:29fac184fdaa2641f7d3d403c1de025ad9a570846be782eb0ed6e7d45b848e23","target":"graph","created_at":"2026-07-04T14:45:41Z","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/0108131/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a new CSS code based on the finite geometry low density parity check code of Kou, Lin, and Fossorier.","authors_text":"Michael S. Postol","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2001-08-29T19:14:46Z","title":"A Proposed Quantum Low Density Parity Check Code"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0108131","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":"sha256:61760741abc1e2c1681287c0196e99530c0c167b1c98d43ab7f028086df488a1","target":"record","created_at":"2026-07-04T14:45:41Z","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":"400a1280286746d46442fc9b7c5eba36ca1b9ba293dadb05035be315658f5395","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2001-08-29T19:14:46Z","title_canon_sha256":"0c642f1b61653651d0e85d4c15fb4f728bf859208e9e15597066bbf72aad311a"},"schema_version":"1.0","source":{"id":"quant-ph/0108131","kind":"arxiv","version":1}},"canonical_sha256":"afb81ee1ad5c8dd44f8046cac903ea80f29bf0e0cdfc60e204034b8c42782604","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"afb81ee1ad5c8dd44f8046cac903ea80f29bf0e0cdfc60e204034b8c42782604","first_computed_at":"2026-07-04T14:45:41.509510Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:45:41.509510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xc0k9AQcKAbQCR21my31rqGlvibWTHHbZzw05Hjsqn4QFNnrjOw2/1WCDi5jXMrEtsLIeEQZvE+65rCw2mChBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:45:41.509877Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0108131","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61760741abc1e2c1681287c0196e99530c0c167b1c98d43ab7f028086df488a1","sha256:29fac184fdaa2641f7d3d403c1de025ad9a570846be782eb0ed6e7d45b848e23"],"state_sha256":"35d8c196c07917e051b6dcd7f422d09c90f5ee5efb5b5b76a6d809ef77e19884"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5XAU18yQlcgbmE2UyeIyS1hNNAm9uBCWvXc55IG5Zhpsb6Qn2U/NRGci1qZWxZx2mzwUclSMK8GBo7s35BtWBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T07:10:32.459142Z","bundle_sha256":"b112cb3cc481dde9730ab8a653c4ee56de150ea772f3606ffac5bfe48d95c36d"}}