{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:YREELE5ZDLYFQCOVXUK45KY562","short_pith_number":"pith:YREELE5Z","canonical_record":{"source":{"id":"0902.3521","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-20T07:07:50Z","cross_cats_sorted":[],"title_canon_sha256":"38a7d8d04a3a8e8fcccc557869ce2fa0380ee5cc8a2ec4d7353253cdad6c9056","abstract_canon_sha256":"17e70408ca05b13fff58a8872c165a78fecf920db80380ae1968e398a7fb3c91"},"schema_version":"1.0"},"canonical_sha256":"c4484593b91af05809d5bd15ceab1df68c62094da9419407884e504fe44bd00d","source":{"kind":"arxiv","id":"0902.3521","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.3521","created_at":"2026-05-18T04:42:03Z"},{"alias_kind":"arxiv_version","alias_value":"0902.3521v3","created_at":"2026-05-18T04:42:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.3521","created_at":"2026-05-18T04:42:03Z"},{"alias_kind":"pith_short_12","alias_value":"YREELE5ZDLYF","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"YREELE5ZDLYFQCOV","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"YREELE5Z","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:YREELE5ZDLYFQCOVXUK45KY562","target":"record","payload":{"canonical_record":{"source":{"id":"0902.3521","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-20T07:07:50Z","cross_cats_sorted":[],"title_canon_sha256":"38a7d8d04a3a8e8fcccc557869ce2fa0380ee5cc8a2ec4d7353253cdad6c9056","abstract_canon_sha256":"17e70408ca05b13fff58a8872c165a78fecf920db80380ae1968e398a7fb3c91"},"schema_version":"1.0"},"canonical_sha256":"c4484593b91af05809d5bd15ceab1df68c62094da9419407884e504fe44bd00d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:42:03.475181Z","signature_b64":"yTf/Dn7ATe7ezuYmyZBhvDsqqOAQTVbnRegTX/alAQG+1sw+n6/xyv6lLkKNQzyJX2wY4O+NXqA5tHFiEJuxBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4484593b91af05809d5bd15ceab1df68c62094da9419407884e504fe44bd00d","last_reissued_at":"2026-05-18T04:42:03.474795Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:42:03.474795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0902.3521","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":"2026-05-18T04:42:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MbUsCLF+aUNV1OBkdzqDaigRp9lA+WPUPAufnrLT9nEQIlPy8R11YUTOJ5ObVZfHfHrfgsxoPY6hS8mOjwCsDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:12:14.488013Z"},"content_sha256":"32027a29ff3b50ec52426f02c27aac219e4f1f2089027e94b5da17fcdff9d963","schema_version":"1.0","event_id":"sha256:32027a29ff3b50ec52426f02c27aac219e4f1f2089027e94b5da17fcdff9d963"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:YREELE5ZDLYFQCOVXUK45KY562","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Geometric Phases of Two Ising-interacting Spins in a Rotating Magnetic Field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Yu Shi","submitted_at":"2009-02-20T07:07:50Z","abstract_excerpt":"We consider how to obtain a nontrivial two-qubit unitary transformation purely based on geometric phases of two spin-1/2's with Ising-like interaction in a magnetic field with a static z-component and a rotating xy-component. This is an interesting problem both for the purpose of measuring the geometric phases and in quantum computing applications. In previous approach, coupling of one of the qubit with the rotating component of field is ignored. By considering the exact two-spin geometric phases, we find that a nontrivial two-spin unitary transformation purely based on Berry phases can be obt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.3521","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":"2026-05-18T04:42:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S43+3m7LED3pFDeUYAcgruletXvx/PrGA8gc30uAn8n8Vzz1g55JpJojqTbjtl+QiyHNNli1c+py1aPvk943Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:12:14.488680Z"},"content_sha256":"9ad9288529382ec6132bfa32657b0e370287def6017177a808bb5cdf800c5223","schema_version":"1.0","event_id":"sha256:9ad9288529382ec6132bfa32657b0e370287def6017177a808bb5cdf800c5223"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YREELE5ZDLYFQCOVXUK45KY562/bundle.json","state_url":"https://pith.science/pith/YREELE5ZDLYFQCOVXUK45KY562/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YREELE5ZDLYFQCOVXUK45KY562/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":"2026-05-27T13:12:14Z","links":{"resolver":"https://pith.science/pith/YREELE5ZDLYFQCOVXUK45KY562","bundle":"https://pith.science/pith/YREELE5ZDLYFQCOVXUK45KY562/bundle.json","state":"https://pith.science/pith/YREELE5ZDLYFQCOVXUK45KY562/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YREELE5ZDLYFQCOVXUK45KY562/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:YREELE5ZDLYFQCOVXUK45KY562","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":"17e70408ca05b13fff58a8872c165a78fecf920db80380ae1968e398a7fb3c91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-20T07:07:50Z","title_canon_sha256":"38a7d8d04a3a8e8fcccc557869ce2fa0380ee5cc8a2ec4d7353253cdad6c9056"},"schema_version":"1.0","source":{"id":"0902.3521","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.3521","created_at":"2026-05-18T04:42:03Z"},{"alias_kind":"arxiv_version","alias_value":"0902.3521v3","created_at":"2026-05-18T04:42:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.3521","created_at":"2026-05-18T04:42:03Z"},{"alias_kind":"pith_short_12","alias_value":"YREELE5ZDLYF","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"YREELE5ZDLYFQCOV","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"YREELE5Z","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:9ad9288529382ec6132bfa32657b0e370287def6017177a808bb5cdf800c5223","target":"graph","created_at":"2026-05-18T04:42:03Z","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":"We consider how to obtain a nontrivial two-qubit unitary transformation purely based on geometric phases of two spin-1/2's with Ising-like interaction in a magnetic field with a static z-component and a rotating xy-component. This is an interesting problem both for the purpose of measuring the geometric phases and in quantum computing applications. In previous approach, coupling of one of the qubit with the rotating component of field is ignored. By considering the exact two-spin geometric phases, we find that a nontrivial two-spin unitary transformation purely based on Berry phases can be obt","authors_text":"Yu Shi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-20T07:07:50Z","title":"Geometric Phases of Two Ising-interacting Spins in a Rotating Magnetic Field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.3521","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":"sha256:32027a29ff3b50ec52426f02c27aac219e4f1f2089027e94b5da17fcdff9d963","target":"record","created_at":"2026-05-18T04:42:03Z","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":"17e70408ca05b13fff58a8872c165a78fecf920db80380ae1968e398a7fb3c91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-20T07:07:50Z","title_canon_sha256":"38a7d8d04a3a8e8fcccc557869ce2fa0380ee5cc8a2ec4d7353253cdad6c9056"},"schema_version":"1.0","source":{"id":"0902.3521","kind":"arxiv","version":3}},"canonical_sha256":"c4484593b91af05809d5bd15ceab1df68c62094da9419407884e504fe44bd00d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4484593b91af05809d5bd15ceab1df68c62094da9419407884e504fe44bd00d","first_computed_at":"2026-05-18T04:42:03.474795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:42:03.474795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yTf/Dn7ATe7ezuYmyZBhvDsqqOAQTVbnRegTX/alAQG+1sw+n6/xyv6lLkKNQzyJX2wY4O+NXqA5tHFiEJuxBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:42:03.475181Z","signed_message":"canonical_sha256_bytes"},"source_id":"0902.3521","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32027a29ff3b50ec52426f02c27aac219e4f1f2089027e94b5da17fcdff9d963","sha256:9ad9288529382ec6132bfa32657b0e370287def6017177a808bb5cdf800c5223"],"state_sha256":"b51259f1f5bd0b2339f586aec3ff35bc9fd55bbca32ada186897a7a2ca4e0b40"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qOPtxGYSsj+BWT3C1CnTCXmCk6mtlmB2d2n8u0bkXep14f5Ve9sjgA3lwR1qhZkrKAFg9ByV3W+dQ0NQ+lUcAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T13:12:14.491684Z","bundle_sha256":"b83121eabe136b33695907a4bba6127f437535b4df7cc66b35bc81e61367e463"}}