{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:GNHOV4FJYGF3Q3CCFYVPQFI7TZ","short_pith_number":"pith:GNHOV4FJ","canonical_record":{"source":{"id":"1511.00004","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-30T19:59:57Z","cross_cats_sorted":[],"title_canon_sha256":"788d61f0784d70239faa91d17de04b18f33be75f31661163d30c987c859a445e","abstract_canon_sha256":"7a16f4cc3f151a622a0833130a792fe2aaac01c8499b87c1cf36c09252d4dc1b"},"schema_version":"1.0"},"canonical_sha256":"334eeaf0a9c18bb86c422e2af8151f9e7f24b8f38ddc32c96660a11f9f0d93c7","source":{"kind":"arxiv","id":"1511.00004","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00004","created_at":"2026-05-18T01:14:02Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00004v3","created_at":"2026-05-18T01:14:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00004","created_at":"2026-05-18T01:14:02Z"},{"alias_kind":"pith_short_12","alias_value":"GNHOV4FJYGF3","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GNHOV4FJYGF3Q3CC","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GNHOV4FJ","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:GNHOV4FJYGF3Q3CCFYVPQFI7TZ","target":"record","payload":{"canonical_record":{"source":{"id":"1511.00004","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-30T19:59:57Z","cross_cats_sorted":[],"title_canon_sha256":"788d61f0784d70239faa91d17de04b18f33be75f31661163d30c987c859a445e","abstract_canon_sha256":"7a16f4cc3f151a622a0833130a792fe2aaac01c8499b87c1cf36c09252d4dc1b"},"schema_version":"1.0"},"canonical_sha256":"334eeaf0a9c18bb86c422e2af8151f9e7f24b8f38ddc32c96660a11f9f0d93c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:14:02.703522Z","signature_b64":"QpUwOfNPU8AWFgB0cQHpah3immJxVi+ioE7gh7AwNdJO9Mdqmq5zirpoMNVEZC11sm4k0sSguebCbV8Px7MlCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"334eeaf0a9c18bb86c422e2af8151f9e7f24b8f38ddc32c96660a11f9f0d93c7","last_reissued_at":"2026-05-18T01:14:02.703012Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:14:02.703012Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.00004","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:14:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KWQzLhA6z882llSEilCqhthUReSVB0rxMG/WT0oKsIRAyRkweFPKNXFLOX1Y1FelVIt8A14YVGydt69VqGWWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T08:03:30.245773Z"},"content_sha256":"392fcc220cc4edb72663b3c5bd4a8da777f919307626070061052342d3a304a4","schema_version":"1.0","event_id":"sha256:392fcc220cc4edb72663b3c5bd4a8da777f919307626070061052342d3a304a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:GNHOV4FJYGF3Q3CCFYVPQFI7TZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Error correction for encoded quantum annealing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Fernando Pastawski, John Preskill","submitted_at":"2015-10-30T19:59:57Z","abstract_excerpt":"Recently, Lechner, Hauke and Zoller [Science Advances, 1(9)e1500838, (2015)] have proposed a quantum annealing architecture, in which a classical spin glass with all-to-all connectivity is simulated by a spin glass with geometrically local interactions. We interpret this architecture as a classical error-correcting code, which is highly robust against weakly correlated bit-flip noise, and we analyze the code's performance using a belief-propagation decoding algorithm. Our observations may also apply to more general encoding schemes and noise models."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00004","kind":"arxiv","version":3},"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":"2026-05-18T01:14:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JvTeTpfIUrVxZR34nkuQq6wMaQO7ltcQcHExtoEqaLqYAhBsq08b+sekfT4kxvAwfZaXkutgZ3ljwyiL7W1GBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T08:03:30.246331Z"},"content_sha256":"42cc73f873ca3f41c6be6b223ea93fe35cafb8e16de235334af976c385ffb81e","schema_version":"1.0","event_id":"sha256:42cc73f873ca3f41c6be6b223ea93fe35cafb8e16de235334af976c385ffb81e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GNHOV4FJYGF3Q3CCFYVPQFI7TZ/bundle.json","state_url":"https://pith.science/pith/GNHOV4FJYGF3Q3CCFYVPQFI7TZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GNHOV4FJYGF3Q3CCFYVPQFI7TZ/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":"2026-06-05T08:03:30Z","links":{"resolver":"https://pith.science/pith/GNHOV4FJYGF3Q3CCFYVPQFI7TZ","bundle":"https://pith.science/pith/GNHOV4FJYGF3Q3CCFYVPQFI7TZ/bundle.json","state":"https://pith.science/pith/GNHOV4FJYGF3Q3CCFYVPQFI7TZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GNHOV4FJYGF3Q3CCFYVPQFI7TZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:GNHOV4FJYGF3Q3CCFYVPQFI7TZ","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":"7a16f4cc3f151a622a0833130a792fe2aaac01c8499b87c1cf36c09252d4dc1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-30T19:59:57Z","title_canon_sha256":"788d61f0784d70239faa91d17de04b18f33be75f31661163d30c987c859a445e"},"schema_version":"1.0","source":{"id":"1511.00004","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00004","created_at":"2026-05-18T01:14:02Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00004v3","created_at":"2026-05-18T01:14:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00004","created_at":"2026-05-18T01:14:02Z"},{"alias_kind":"pith_short_12","alias_value":"GNHOV4FJYGF3","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GNHOV4FJYGF3Q3CC","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GNHOV4FJ","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:42cc73f873ca3f41c6be6b223ea93fe35cafb8e16de235334af976c385ffb81e","target":"graph","created_at":"2026-05-18T01:14:02Z","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":"Recently, Lechner, Hauke and Zoller [Science Advances, 1(9)e1500838, (2015)] have proposed a quantum annealing architecture, in which a classical spin glass with all-to-all connectivity is simulated by a spin glass with geometrically local interactions. We interpret this architecture as a classical error-correcting code, which is highly robust against weakly correlated bit-flip noise, and we analyze the code's performance using a belief-propagation decoding algorithm. Our observations may also apply to more general encoding schemes and noise models.","authors_text":"Fernando Pastawski, John Preskill","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-30T19:59:57Z","title":"Error correction for encoded quantum annealing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00004","kind":"arxiv","version":3},"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":"sha256:392fcc220cc4edb72663b3c5bd4a8da777f919307626070061052342d3a304a4","target":"record","created_at":"2026-05-18T01:14:02Z","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":"7a16f4cc3f151a622a0833130a792fe2aaac01c8499b87c1cf36c09252d4dc1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-30T19:59:57Z","title_canon_sha256":"788d61f0784d70239faa91d17de04b18f33be75f31661163d30c987c859a445e"},"schema_version":"1.0","source":{"id":"1511.00004","kind":"arxiv","version":3}},"canonical_sha256":"334eeaf0a9c18bb86c422e2af8151f9e7f24b8f38ddc32c96660a11f9f0d93c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"334eeaf0a9c18bb86c422e2af8151f9e7f24b8f38ddc32c96660a11f9f0d93c7","first_computed_at":"2026-05-18T01:14:02.703012Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:14:02.703012Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QpUwOfNPU8AWFgB0cQHpah3immJxVi+ioE7gh7AwNdJO9Mdqmq5zirpoMNVEZC11sm4k0sSguebCbV8Px7MlCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:14:02.703522Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.00004","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:392fcc220cc4edb72663b3c5bd4a8da777f919307626070061052342d3a304a4","sha256:42cc73f873ca3f41c6be6b223ea93fe35cafb8e16de235334af976c385ffb81e"],"state_sha256":"1cffac30835bf003baa6236d2dbe47692d23bb4fc2ec13e14c2230680a973f0c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zgDBhyiBvI6x3MJFieFnXDtVvfUZaxNm6xDLfv6+x/Wye+G2dyG3aG45IJrLPQcRWj/zyepfF9SsmupK2WwFCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T08:03:30.248919Z","bundle_sha256":"67bba17174d5d25c5a9f8e4d1d76cdbe948cfb88cbe50de42da811caf5ed52fb"}}