{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:W5LLK3VJWFFUGSOYHA56TXKYK3","short_pith_number":"pith:W5LLK3VJ","canonical_record":{"source":{"id":"0710.1447","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2007-10-07T22:47:34Z","cross_cats_sorted":[],"title_canon_sha256":"6b4cccb12ebca334b26b192f03104edb88b413736c25145d5db604d4f47424e5","abstract_canon_sha256":"a013497a0ba16f90c1df4ddc2792a8e076581cc8a4704b2667101c53c5565c74"},"schema_version":"1.0"},"canonical_sha256":"b756b56ea9b14b4349d8383be9dd5856c664d77a954c41081077601de84c490e","source":{"kind":"arxiv","id":"0710.1447","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.1447","created_at":"2026-05-18T02:51:25Z"},{"alias_kind":"arxiv_version","alias_value":"0710.1447v1","created_at":"2026-05-18T02:51:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.1447","created_at":"2026-05-18T02:51:25Z"},{"alias_kind":"pith_short_12","alias_value":"W5LLK3VJWFFU","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"W5LLK3VJWFFUGSOY","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"W5LLK3VJ","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:W5LLK3VJWFFUGSOYHA56TXKYK3","target":"record","payload":{"canonical_record":{"source":{"id":"0710.1447","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2007-10-07T22:47:34Z","cross_cats_sorted":[],"title_canon_sha256":"6b4cccb12ebca334b26b192f03104edb88b413736c25145d5db604d4f47424e5","abstract_canon_sha256":"a013497a0ba16f90c1df4ddc2792a8e076581cc8a4704b2667101c53c5565c74"},"schema_version":"1.0"},"canonical_sha256":"b756b56ea9b14b4349d8383be9dd5856c664d77a954c41081077601de84c490e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:51:25.800779Z","signature_b64":"bat9118+/ppDc37Kdk7px3DR9TqQeZq2FS5TewNNdoOVg3zzVnrUDyTH6Mx16izjeKlQXpQ/y9lvc3/r4jcoDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b756b56ea9b14b4349d8383be9dd5856c664d77a954c41081077601de84c490e","last_reissued_at":"2026-05-18T02:51:25.800232Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:51:25.800232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0710.1447","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":"2026-05-18T02:51:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bUYzWFl/rAZZxuRJx3urqfvIzcCXUPnJsPcIanMr4cCMX4EQNr/FN+bKFV1q5+QhqTgSZIajSGoe5s0KzV1BCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T23:37:29.526166Z"},"content_sha256":"b1d38bf6cc761a53efaf39718694de490cea9fb6f1e59fa260c5a85b7c0e52ad","schema_version":"1.0","event_id":"sha256:b1d38bf6cc761a53efaf39718694de490cea9fb6f1e59fa260c5a85b7c0e52ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:W5LLK3VJWFFUGSOYHA56TXKYK3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum information processing using nuclear and electron magnetic resonance: review and prospects","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Hubbard, C. A. Ryan, C. M. Chandrashekar, C. Negrevergne, C. Ramanathan, D. G. Cory, D. Maslov, J. Baugh, J. Chamilliard, J. S. Hodges, M. Ditty, M. Laforest, M. Silva, O. Moussa, R. Laflamme, S. Simmons","submitted_at":"2007-10-07T22:47:34Z","abstract_excerpt":"This paper describes recent progress using nuclear magnetic resonance (NMR) as a platform for implementing quantum information processing (QIP) tasks. The basic ideas of NMR QIP are detailed, examining the successes and limitations of liquid and solid state experiments. Finally, a future direction for implementing quantum processors is suggested,utilizing both nuclear and electron spin degrees of freedom."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.1447","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":"2026-05-18T02:51:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WpYhuL2xxoxcsQS7TaqJlP/Ba6mJIrAck+X40zsVENiYG1IMWV4trBHDtFkFuJs7LoFr3ReDAGYz5KPyxnTDAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T23:37:29.526534Z"},"content_sha256":"53ff846a854f0e7788543e4266db9e9a2b011f3f117ef91a924f23d362e06b16","schema_version":"1.0","event_id":"sha256:53ff846a854f0e7788543e4266db9e9a2b011f3f117ef91a924f23d362e06b16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W5LLK3VJWFFUGSOYHA56TXKYK3/bundle.json","state_url":"https://pith.science/pith/W5LLK3VJWFFUGSOYHA56TXKYK3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W5LLK3VJWFFUGSOYHA56TXKYK3/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":"2026-06-01T23:37:29Z","links":{"resolver":"https://pith.science/pith/W5LLK3VJWFFUGSOYHA56TXKYK3","bundle":"https://pith.science/pith/W5LLK3VJWFFUGSOYHA56TXKYK3/bundle.json","state":"https://pith.science/pith/W5LLK3VJWFFUGSOYHA56TXKYK3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W5LLK3VJWFFUGSOYHA56TXKYK3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:W5LLK3VJWFFUGSOYHA56TXKYK3","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":"a013497a0ba16f90c1df4ddc2792a8e076581cc8a4704b2667101c53c5565c74","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2007-10-07T22:47:34Z","title_canon_sha256":"6b4cccb12ebca334b26b192f03104edb88b413736c25145d5db604d4f47424e5"},"schema_version":"1.0","source":{"id":"0710.1447","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.1447","created_at":"2026-05-18T02:51:25Z"},{"alias_kind":"arxiv_version","alias_value":"0710.1447v1","created_at":"2026-05-18T02:51:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.1447","created_at":"2026-05-18T02:51:25Z"},{"alias_kind":"pith_short_12","alias_value":"W5LLK3VJWFFU","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"W5LLK3VJWFFUGSOY","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"W5LLK3VJ","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:53ff846a854f0e7788543e4266db9e9a2b011f3f117ef91a924f23d362e06b16","target":"graph","created_at":"2026-05-18T02:51:25Z","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":"This paper describes recent progress using nuclear magnetic resonance (NMR) as a platform for implementing quantum information processing (QIP) tasks. The basic ideas of NMR QIP are detailed, examining the successes and limitations of liquid and solid state experiments. Finally, a future direction for implementing quantum processors is suggested,utilizing both nuclear and electron spin degrees of freedom.","authors_text":"A. Hubbard, C. A. Ryan, C. M. Chandrashekar, C. Negrevergne, C. Ramanathan, D. G. Cory, D. Maslov, J. Baugh, J. Chamilliard, J. S. Hodges, M. Ditty, M. Laforest, M. Silva, O. Moussa, R. Laflamme, S. Simmons","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2007-10-07T22:47:34Z","title":"Quantum information processing using nuclear and electron magnetic resonance: review and prospects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.1447","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:b1d38bf6cc761a53efaf39718694de490cea9fb6f1e59fa260c5a85b7c0e52ad","target":"record","created_at":"2026-05-18T02:51:25Z","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":"a013497a0ba16f90c1df4ddc2792a8e076581cc8a4704b2667101c53c5565c74","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2007-10-07T22:47:34Z","title_canon_sha256":"6b4cccb12ebca334b26b192f03104edb88b413736c25145d5db604d4f47424e5"},"schema_version":"1.0","source":{"id":"0710.1447","kind":"arxiv","version":1}},"canonical_sha256":"b756b56ea9b14b4349d8383be9dd5856c664d77a954c41081077601de84c490e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b756b56ea9b14b4349d8383be9dd5856c664d77a954c41081077601de84c490e","first_computed_at":"2026-05-18T02:51:25.800232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:51:25.800232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bat9118+/ppDc37Kdk7px3DR9TqQeZq2FS5TewNNdoOVg3zzVnrUDyTH6Mx16izjeKlQXpQ/y9lvc3/r4jcoDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:51:25.800779Z","signed_message":"canonical_sha256_bytes"},"source_id":"0710.1447","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1d38bf6cc761a53efaf39718694de490cea9fb6f1e59fa260c5a85b7c0e52ad","sha256:53ff846a854f0e7788543e4266db9e9a2b011f3f117ef91a924f23d362e06b16"],"state_sha256":"a2ce4e7e01b4ebbda41f39c758a8967ffde9931b671fb17630e51b3f9734f925"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6uMoFRuZV+KX9Q2QivOHERQR0psHO2rP5buMCTL1Fp8hL9BN7vh75jxLGD/SMwijh9w+NNNVwq77XTGI6SSxDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T23:37:29.528497Z","bundle_sha256":"680e0c514c91080131c545bfc80f64c81fc87c9212455157ec7604668403c553"}}