{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:BMAN6OFKTUEEIAAR34NDJE5M4H","short_pith_number":"pith:BMAN6OFK","canonical_record":{"source":{"id":"1302.4310","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-02-18T15:20:18Z","cross_cats_sorted":[],"title_canon_sha256":"1bd472a9bcd5db12065618eb54b3573c6941cc836299d51a3e5639f372c13658","abstract_canon_sha256":"753d6756bde6615e84e48f94096eb42913ef4693dd9ca134bedda79a5f2937ae"},"schema_version":"1.0"},"canonical_sha256":"0b00df38aa9d08440011df1a3493ace1dd359307ccf20fccd9e2323a7e07d85f","source":{"kind":"arxiv","id":"1302.4310","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4310","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4310v2","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4310","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"pith_short_12","alias_value":"BMAN6OFKTUEE","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BMAN6OFKTUEEIAAR","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BMAN6OFK","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:BMAN6OFKTUEEIAAR34NDJE5M4H","target":"record","payload":{"canonical_record":{"source":{"id":"1302.4310","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-02-18T15:20:18Z","cross_cats_sorted":[],"title_canon_sha256":"1bd472a9bcd5db12065618eb54b3573c6941cc836299d51a3e5639f372c13658","abstract_canon_sha256":"753d6756bde6615e84e48f94096eb42913ef4693dd9ca134bedda79a5f2937ae"},"schema_version":"1.0"},"canonical_sha256":"0b00df38aa9d08440011df1a3493ace1dd359307ccf20fccd9e2323a7e07d85f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:35.747415Z","signature_b64":"xm1pgA0ABwEDkAI6tzaDwmjA+PdMqFTFYgo/+SoMXpeoFzDadX8Ajj1ntKq/iPDkfg3hzuDV+89n9zqxXuXVAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b00df38aa9d08440011df1a3493ace1dd359307ccf20fccd9e2323a7e07d85f","last_reissued_at":"2026-05-18T01:51:35.746960Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:35.746960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.4310","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":"2026-05-18T01:51:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HuygScBUs0dOQ5FGixJzHbKouNoyaIDlT89OLm7EVbAXG377BbjZHMWPJY+kCnsTykk8jLRbh2MWwGcY7LSSCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:54:17.640356Z"},"content_sha256":"1c5b3052d210a60edb738506595a2cd0a4b1869b62b67c02fe69e5176f7dad56","schema_version":"1.0","event_id":"sha256:1c5b3052d210a60edb738506595a2cd0a4b1869b62b67c02fe69e5176f7dad56"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:BMAN6OFKTUEEIAAR34NDJE5M4H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental Quantum Computing to Solve Systems of Linear Equations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chao-Yang Lu, Christian Weedbrook, Jian-Wei Pan, L. Li, M.-C. Chen, Mile Gu, M.-J. Zhu, N.-L. Liu, X.-D. Cai, Z.-E. Su","submitted_at":"2013-02-18T15:20:18Z","abstract_excerpt":"Solving linear systems of equations is ubiquitous in all areas of science and engineering. With rapidly growing data sets, such a task can be intractable for classical computers, as the best known classical algorithms require a time proportional to the number of variables N. A recently proposed quantum algorithm shows that quantum computers could solve linear systems in a time scale of order log(N), giving an exponential speedup over classical computers. Here we realize the simplest instance of this algorithm, solving 2*2 linear equations for various input vectors on a quantum computer. We use"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4310","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":"2026-05-18T01:51:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CjKLO4ngWiLOy7OZxJw9L+Dl3iUcPHMnb4LenflnbT4d+/sjaLfrS17FRZyryRA6EnWGfVBIV+72kxKspj4HBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:54:17.640712Z"},"content_sha256":"89223578f50d9e096c2fa9007c68e951c3f502a11725fb7e28c5a2b10f80e777","schema_version":"1.0","event_id":"sha256:89223578f50d9e096c2fa9007c68e951c3f502a11725fb7e28c5a2b10f80e777"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BMAN6OFKTUEEIAAR34NDJE5M4H/bundle.json","state_url":"https://pith.science/pith/BMAN6OFKTUEEIAAR34NDJE5M4H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BMAN6OFKTUEEIAAR34NDJE5M4H/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":"2026-05-30T06:54:17Z","links":{"resolver":"https://pith.science/pith/BMAN6OFKTUEEIAAR34NDJE5M4H","bundle":"https://pith.science/pith/BMAN6OFKTUEEIAAR34NDJE5M4H/bundle.json","state":"https://pith.science/pith/BMAN6OFKTUEEIAAR34NDJE5M4H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BMAN6OFKTUEEIAAR34NDJE5M4H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:BMAN6OFKTUEEIAAR34NDJE5M4H","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":"753d6756bde6615e84e48f94096eb42913ef4693dd9ca134bedda79a5f2937ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-02-18T15:20:18Z","title_canon_sha256":"1bd472a9bcd5db12065618eb54b3573c6941cc836299d51a3e5639f372c13658"},"schema_version":"1.0","source":{"id":"1302.4310","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.4310","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"arxiv_version","alias_value":"1302.4310v2","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.4310","created_at":"2026-05-18T01:51:35Z"},{"alias_kind":"pith_short_12","alias_value":"BMAN6OFKTUEE","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BMAN6OFKTUEEIAAR","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BMAN6OFK","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:89223578f50d9e096c2fa9007c68e951c3f502a11725fb7e28c5a2b10f80e777","target":"graph","created_at":"2026-05-18T01:51:35Z","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":"Solving linear systems of equations is ubiquitous in all areas of science and engineering. With rapidly growing data sets, such a task can be intractable for classical computers, as the best known classical algorithms require a time proportional to the number of variables N. A recently proposed quantum algorithm shows that quantum computers could solve linear systems in a time scale of order log(N), giving an exponential speedup over classical computers. Here we realize the simplest instance of this algorithm, solving 2*2 linear equations for various input vectors on a quantum computer. We use","authors_text":"Chao-Yang Lu, Christian Weedbrook, Jian-Wei Pan, L. Li, M.-C. Chen, Mile Gu, M.-J. Zhu, N.-L. Liu, X.-D. Cai, Z.-E. Su","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-02-18T15:20:18Z","title":"Experimental Quantum Computing to Solve Systems of Linear Equations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.4310","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":"sha256:1c5b3052d210a60edb738506595a2cd0a4b1869b62b67c02fe69e5176f7dad56","target":"record","created_at":"2026-05-18T01:51:35Z","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":"753d6756bde6615e84e48f94096eb42913ef4693dd9ca134bedda79a5f2937ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-02-18T15:20:18Z","title_canon_sha256":"1bd472a9bcd5db12065618eb54b3573c6941cc836299d51a3e5639f372c13658"},"schema_version":"1.0","source":{"id":"1302.4310","kind":"arxiv","version":2}},"canonical_sha256":"0b00df38aa9d08440011df1a3493ace1dd359307ccf20fccd9e2323a7e07d85f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b00df38aa9d08440011df1a3493ace1dd359307ccf20fccd9e2323a7e07d85f","first_computed_at":"2026-05-18T01:51:35.746960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:35.746960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xm1pgA0ABwEDkAI6tzaDwmjA+PdMqFTFYgo/+SoMXpeoFzDadX8Ajj1ntKq/iPDkfg3hzuDV+89n9zqxXuXVAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:35.747415Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.4310","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c5b3052d210a60edb738506595a2cd0a4b1869b62b67c02fe69e5176f7dad56","sha256:89223578f50d9e096c2fa9007c68e951c3f502a11725fb7e28c5a2b10f80e777"],"state_sha256":"eb6aee6378a0e5180d6e6fcd775889ce6c2025206ee9f05808305da320115a4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e00WpXtHveI8H+aiPZmY/W7GnKSi3/CYmiuzzkqAqQdjm6GdCm+vn45RZKL/Knbi1QtjiXCvKK0oAVeIBKskCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T06:54:17.642659Z","bundle_sha256":"4cc601bc6a5de0b8e83eb2ba7914b1eed0d523189fc33971a148aa0e5b31cfa2"}}