{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:MVTIUCUTLGPRZGQ372YWIPXY7K","short_pith_number":"pith:MVTIUCUT","canonical_record":{"source":{"id":"1204.0302","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-02T03:01:29Z","cross_cats_sorted":[],"title_canon_sha256":"580216b863881b27be9c40d0b437e5c4cc17d0aa967e1372169e8c2a63244daf","abstract_canon_sha256":"1c67097b0846761856edc8265e8500c0fb5f0abf523d84d52dca01e47f71bc2b"},"schema_version":"1.0"},"canonical_sha256":"65668a0a93599f1c9a1bfeb1643ef8faa65bf92eb193c2b1f3cc69e48c90e1b5","source":{"kind":"arxiv","id":"1204.0302","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.0302","created_at":"2026-05-18T03:44:49Z"},{"alias_kind":"arxiv_version","alias_value":"1204.0302v2","created_at":"2026-05-18T03:44:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.0302","created_at":"2026-05-18T03:44:49Z"},{"alias_kind":"pith_short_12","alias_value":"MVTIUCUTLGPR","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MVTIUCUTLGPRZGQ3","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MVTIUCUT","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:MVTIUCUTLGPRZGQ372YWIPXY7K","target":"record","payload":{"canonical_record":{"source":{"id":"1204.0302","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-02T03:01:29Z","cross_cats_sorted":[],"title_canon_sha256":"580216b863881b27be9c40d0b437e5c4cc17d0aa967e1372169e8c2a63244daf","abstract_canon_sha256":"1c67097b0846761856edc8265e8500c0fb5f0abf523d84d52dca01e47f71bc2b"},"schema_version":"1.0"},"canonical_sha256":"65668a0a93599f1c9a1bfeb1643ef8faa65bf92eb193c2b1f3cc69e48c90e1b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:44:49.154553Z","signature_b64":"AuOV1s+FqhnIMzpSq/eGZ5E7JGmvAbUZlBQy9qm3bMDmZJnOFOmPzxJ7mTFeBTsuJlpddTp9byZ5fSnGXdysAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"65668a0a93599f1c9a1bfeb1643ef8faa65bf92eb193c2b1f3cc69e48c90e1b5","last_reissued_at":"2026-05-18T03:44:49.153853Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:44:49.153853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.0302","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:44:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y3zaf0ynbXJnGpPGh77QzvwFKZulUlEx6Yh2KGCIEj9DUTdmC7NXSNB5SWmnnTpGRZLldcWNmyojFkyWYi1NDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:44:18.536255Z"},"content_sha256":"b901d4396111f1e049e5bf5bbe4ee39f479cbe4258484cd8945ea73e1ae5389e","schema_version":"1.0","event_id":"sha256:b901d4396111f1e049e5bf5bbe4ee39f479cbe4258484cd8945ea73e1ae5389e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:MVTIUCUTLGPRZGQ372YWIPXY7K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement-Assisted Quantum Error-Correcting Codes with Imperfect Ebits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ching-Yi Lai, Todd A. Brun","submitted_at":"2012-04-02T03:01:29Z","abstract_excerpt":"The scheme of entanglement-assisted quantum error-correcting (EAQEC) codes assumes that the ebits of the receiver are error-free. In practical situations, errors on these ebits are unavoidable, which diminishes the error-correcting ability of these codes. We consider two different versions of this problem. We first show that any (nondegenerate) standard stabilizer code can be transformed into an EAQEC code that can correct errors on the qubits of both sender and receiver. These EAQEC codes are equivalent to standard stabilizer codes, and hence the decoding techniques of standard stabilizer cod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.0302","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T03:44:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ji86jT7HdYiCA4tjsXgoMK8DXyHeCRB23xZlF8B8PckIJFBUoXnEa249Yz9swAFXU+hrDXpKYlDQwyK3AghwDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:44:18.536691Z"},"content_sha256":"d3a5c8fdd971a05cc61729c439cf0d758b4086603629442d38eb82bdccf232d2","schema_version":"1.0","event_id":"sha256:d3a5c8fdd971a05cc61729c439cf0d758b4086603629442d38eb82bdccf232d2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MVTIUCUTLGPRZGQ372YWIPXY7K/bundle.json","state_url":"https://pith.science/pith/MVTIUCUTLGPRZGQ372YWIPXY7K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MVTIUCUTLGPRZGQ372YWIPXY7K/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":"2026-05-26T15:44:18Z","links":{"resolver":"https://pith.science/pith/MVTIUCUTLGPRZGQ372YWIPXY7K","bundle":"https://pith.science/pith/MVTIUCUTLGPRZGQ372YWIPXY7K/bundle.json","state":"https://pith.science/pith/MVTIUCUTLGPRZGQ372YWIPXY7K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MVTIUCUTLGPRZGQ372YWIPXY7K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MVTIUCUTLGPRZGQ372YWIPXY7K","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":"1c67097b0846761856edc8265e8500c0fb5f0abf523d84d52dca01e47f71bc2b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-02T03:01:29Z","title_canon_sha256":"580216b863881b27be9c40d0b437e5c4cc17d0aa967e1372169e8c2a63244daf"},"schema_version":"1.0","source":{"id":"1204.0302","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.0302","created_at":"2026-05-18T03:44:49Z"},{"alias_kind":"arxiv_version","alias_value":"1204.0302v2","created_at":"2026-05-18T03:44:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.0302","created_at":"2026-05-18T03:44:49Z"},{"alias_kind":"pith_short_12","alias_value":"MVTIUCUTLGPR","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MVTIUCUTLGPRZGQ3","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MVTIUCUT","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:d3a5c8fdd971a05cc61729c439cf0d758b4086603629442d38eb82bdccf232d2","target":"graph","created_at":"2026-05-18T03:44:49Z","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"},"paper":{"abstract_excerpt":"The scheme of entanglement-assisted quantum error-correcting (EAQEC) codes assumes that the ebits of the receiver are error-free. In practical situations, errors on these ebits are unavoidable, which diminishes the error-correcting ability of these codes. We consider two different versions of this problem. We first show that any (nondegenerate) standard stabilizer code can be transformed into an EAQEC code that can correct errors on the qubits of both sender and receiver. These EAQEC codes are equivalent to standard stabilizer codes, and hence the decoding techniques of standard stabilizer cod","authors_text":"Ching-Yi Lai, Todd A. Brun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-02T03:01:29Z","title":"Entanglement-Assisted Quantum Error-Correcting Codes with Imperfect Ebits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.0302","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:b901d4396111f1e049e5bf5bbe4ee39f479cbe4258484cd8945ea73e1ae5389e","target":"record","created_at":"2026-05-18T03:44:49Z","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":"1c67097b0846761856edc8265e8500c0fb5f0abf523d84d52dca01e47f71bc2b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-02T03:01:29Z","title_canon_sha256":"580216b863881b27be9c40d0b437e5c4cc17d0aa967e1372169e8c2a63244daf"},"schema_version":"1.0","source":{"id":"1204.0302","kind":"arxiv","version":2}},"canonical_sha256":"65668a0a93599f1c9a1bfeb1643ef8faa65bf92eb193c2b1f3cc69e48c90e1b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"65668a0a93599f1c9a1bfeb1643ef8faa65bf92eb193c2b1f3cc69e48c90e1b5","first_computed_at":"2026-05-18T03:44:49.153853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:44:49.153853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AuOV1s+FqhnIMzpSq/eGZ5E7JGmvAbUZlBQy9qm3bMDmZJnOFOmPzxJ7mTFeBTsuJlpddTp9byZ5fSnGXdysAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:44:49.154553Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.0302","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b901d4396111f1e049e5bf5bbe4ee39f479cbe4258484cd8945ea73e1ae5389e","sha256:d3a5c8fdd971a05cc61729c439cf0d758b4086603629442d38eb82bdccf232d2"],"state_sha256":"7184fecedc54ef2a29c2ff4626a256249963de0c66539226c26bcca98df0be3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k5gS4DRWFUxAyCF00lUj83/ExZQhFMbiGV0p9RJxxph/ipUpGceUc+zPVuvqSqYZprBbsmkdo0ynrXstyDUSCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:44:18.539531Z","bundle_sha256":"b7094b1c18e963e8fbe8d45312acd1bdff90e9e83860406c31d9facd55e99cf5"}}