{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:DBBID3MCD7Q4U7TWLQA64XZXEV","short_pith_number":"pith:DBBID3MC","canonical_record":{"source":{"id":"quant-ph/0004104","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-04-27T22:31:00Z","cross_cats_sorted":[],"title_canon_sha256":"fa5506dd5f87eb504951f7fe468ee97eb141d3ade6a5f34e45f6a6eb838e26a0","abstract_canon_sha256":"b4f65292029f481a3f9be464f2dc272dcdb96f19b7bc589037a03d1f61115e16"},"schema_version":"1.0"},"canonical_sha256":"184281ed821fe1ca7e765c01ee5f372561e95dcb0781614c7df5bcc3e342360f","source":{"kind":"arxiv","id":"quant-ph/0004104","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0004104","created_at":"2026-05-18T01:38:03Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0004104v1","created_at":"2026-05-18T01:38:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0004104","created_at":"2026-05-18T01:38:03Z"},{"alias_kind":"pith_short_12","alias_value":"DBBID3MCD7Q4","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DBBID3MCD7Q4U7TW","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DBBID3MC","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:DBBID3MCD7Q4U7TWLQA64XZXEV","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0004104","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-04-27T22:31:00Z","cross_cats_sorted":[],"title_canon_sha256":"fa5506dd5f87eb504951f7fe468ee97eb141d3ade6a5f34e45f6a6eb838e26a0","abstract_canon_sha256":"b4f65292029f481a3f9be464f2dc272dcdb96f19b7bc589037a03d1f61115e16"},"schema_version":"1.0"},"canonical_sha256":"184281ed821fe1ca7e765c01ee5f372561e95dcb0781614c7df5bcc3e342360f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:03.230590Z","signature_b64":"c8HnV5EOMFFwYkmkVMg/qYNr5BUXUIe1meyA96EX6UWvRca5OFCSth/Jpj4Hq7Bu+uY5YoaXat7WqN/BkDTwBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"184281ed821fe1ca7e765c01ee5f372561e95dcb0781614c7df5bcc3e342360f","last_reissued_at":"2026-05-18T01:38:03.229903Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:03.229903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0004104","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":"2026-05-18T01:38:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mmYv5VtxQZ+MJe59aRjTwxF7sibtRO316jnJalE08QPt3rS1rv9NSmMAEE8+Wq1uYqCdNEPXTNl4HxLyuKl5AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:56:34.933834Z"},"content_sha256":"a7181e8fccc070cb37c53c4369f65ad2f021b13a144812f0500598c30db74ffc","schema_version":"1.0","event_id":"sha256:a7181e8fccc070cb37c53c4369f65ad2f021b13a144812f0500598c30db74ffc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:DBBID3MCD7Q4U7TWLQA64XZXEV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NMR Based Quantum Information Processing: Achievements and Prospects","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"C. Negrevergne, D.G. Cory, E. Fortunato, E. Knill, G. Boutis, G. Teklemariam, L. Viola, M. Pravia, N. Boulant, R. Laflamme, R. Martinez, S. Lloyd, T.F. Havel, W.H. Zurek, Y. Sharf, Y.S. Weinstein","submitted_at":"2000-04-27T22:31:00Z","abstract_excerpt":"Nuclear magnetic resonance (NMR) provides an experimental setting to explore physical implementations of quantum information processing (QIP). Here we introduce the basic background for understanding applications of NMR to QIP and explain their current successes, limitations and potential. NMR spectroscopy is well known for its wealth of diverse coherent manipulations of spin dynamics. Ideas and instrumentation from liquid state NMR spectroscopy have been used to experiment with QIP. This approach has carried the field to a complexity of about 10 qubits, a small number for quantum computation "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0004104","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":""},"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":"2026-05-18T01:38:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j5DKDXa+v7y6lum8qtg671XxuumGieP/Enoe04YbLle8JBiKciUEpkuMLuyIPVtS9iScqM2XtNn3UCt86iJcCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:56:34.934553Z"},"content_sha256":"a55826d2f7ef625ac5491152ab04885e8e2d64eacfcc1852644f9db21501435e","schema_version":"1.0","event_id":"sha256:a55826d2f7ef625ac5491152ab04885e8e2d64eacfcc1852644f9db21501435e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DBBID3MCD7Q4U7TWLQA64XZXEV/bundle.json","state_url":"https://pith.science/pith/DBBID3MCD7Q4U7TWLQA64XZXEV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DBBID3MCD7Q4U7TWLQA64XZXEV/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":"2026-05-26T09:56:34Z","links":{"resolver":"https://pith.science/pith/DBBID3MCD7Q4U7TWLQA64XZXEV","bundle":"https://pith.science/pith/DBBID3MCD7Q4U7TWLQA64XZXEV/bundle.json","state":"https://pith.science/pith/DBBID3MCD7Q4U7TWLQA64XZXEV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DBBID3MCD7Q4U7TWLQA64XZXEV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:DBBID3MCD7Q4U7TWLQA64XZXEV","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":"b4f65292029f481a3f9be464f2dc272dcdb96f19b7bc589037a03d1f61115e16","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-04-27T22:31:00Z","title_canon_sha256":"fa5506dd5f87eb504951f7fe468ee97eb141d3ade6a5f34e45f6a6eb838e26a0"},"schema_version":"1.0","source":{"id":"quant-ph/0004104","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0004104","created_at":"2026-05-18T01:38:03Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0004104v1","created_at":"2026-05-18T01:38:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0004104","created_at":"2026-05-18T01:38:03Z"},{"alias_kind":"pith_short_12","alias_value":"DBBID3MCD7Q4","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DBBID3MCD7Q4U7TW","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DBBID3MC","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:a55826d2f7ef625ac5491152ab04885e8e2d64eacfcc1852644f9db21501435e","target":"graph","created_at":"2026-05-18T01:38:03Z","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":"Nuclear magnetic resonance (NMR) provides an experimental setting to explore physical implementations of quantum information processing (QIP). Here we introduce the basic background for understanding applications of NMR to QIP and explain their current successes, limitations and potential. NMR spectroscopy is well known for its wealth of diverse coherent manipulations of spin dynamics. Ideas and instrumentation from liquid state NMR spectroscopy have been used to experiment with QIP. This approach has carried the field to a complexity of about 10 qubits, a small number for quantum computation ","authors_text":"C. Negrevergne, D.G. Cory, E. Fortunato, E. Knill, G. Boutis, G. Teklemariam, L. Viola, M. Pravia, N. Boulant, R. Laflamme, R. Martinez, S. Lloyd, T.F. Havel, W.H. Zurek, Y. Sharf, Y.S. Weinstein","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2000-04-27T22:31:00Z","title":"NMR Based Quantum Information Processing: Achievements and Prospects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0004104","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:a7181e8fccc070cb37c53c4369f65ad2f021b13a144812f0500598c30db74ffc","target":"record","created_at":"2026-05-18T01:38:03Z","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":"b4f65292029f481a3f9be464f2dc272dcdb96f19b7bc589037a03d1f61115e16","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-04-27T22:31:00Z","title_canon_sha256":"fa5506dd5f87eb504951f7fe468ee97eb141d3ade6a5f34e45f6a6eb838e26a0"},"schema_version":"1.0","source":{"id":"quant-ph/0004104","kind":"arxiv","version":1}},"canonical_sha256":"184281ed821fe1ca7e765c01ee5f372561e95dcb0781614c7df5bcc3e342360f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"184281ed821fe1ca7e765c01ee5f372561e95dcb0781614c7df5bcc3e342360f","first_computed_at":"2026-05-18T01:38:03.229903Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:38:03.229903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c8HnV5EOMFFwYkmkVMg/qYNr5BUXUIe1meyA96EX6UWvRca5OFCSth/Jpj4Hq7Bu+uY5YoaXat7WqN/BkDTwBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:38:03.230590Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0004104","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7181e8fccc070cb37c53c4369f65ad2f021b13a144812f0500598c30db74ffc","sha256:a55826d2f7ef625ac5491152ab04885e8e2d64eacfcc1852644f9db21501435e"],"state_sha256":"8d236a196b0de9c80a9c1f4ee09f33242060bbbf2582a93fff0ab35b952f7b0e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CTfqXKqblFOtbyutoNKdYanY87crgdxwOKsMwFxTCR9ZDSYcWKbjIs5/tgEyEbphJAD5E8mio1eV2TREqLUECQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:56:34.938368Z","bundle_sha256":"fe23cbca508284dbbabdd1f43182d089c9391ae6810df43529423bf21e17f39c"}}