{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:S2XXLIXBCSHTDA3P2EXY3MY7D7","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":"3b3a073f25111710ce8f433aacb4f0a146fdf19ea29e068d212e125c803efba5","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-08T21:00:36Z","title_canon_sha256":"e0f06dfb95353613331e5c5251b49cce74bd5df925071d73a7ed66270f4474de"},"schema_version":"1.0","source":{"id":"1202.1828","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1828","created_at":"2026-05-18T03:28:54Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1828v1","created_at":"2026-05-18T03:28:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1828","created_at":"2026-05-18T03:28:54Z"},{"alias_kind":"pith_short_12","alias_value":"S2XXLIXBCSHT","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"S2XXLIXBCSHTDA3P","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"S2XXLIXB","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:15f1f99df94c0214426a2c6bd22d3b1fb6329403ed350aec536cd95cb3da3e3f","target":"graph","created_at":"2026-05-18T03:28:54Z","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":"Quantum computers have the potential to solve certain interesting problems significantly faster than classical computers. To exploit the power of a quantum computation it is necessary to perform inter-qubit operations and generate entangled states. Spin qubits are a promising candidate for implementing a quantum processor due to their potential for scalability and miniaturization. However, their weak interactions with the environment, which leads to their long coherence times, makes inter-qubit operations challenging. We perform a controlled two-qubit operation between singlet-triplet qubits u","authors_text":"Amir Yacoby, Hendrik Bluhm, Michael D. Shulman, Oliver E. Dial, Shannon P. Harvey, Vladimir Umansky","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-08T21:00:36Z","title":"Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1828","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":"sha256:8bc40187cc764955f097b1719a9cb30e14a8dfaac48ffeafab38d77f93111e4a","target":"record","created_at":"2026-05-18T03:28:54Z","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":"3b3a073f25111710ce8f433aacb4f0a146fdf19ea29e068d212e125c803efba5","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-08T21:00:36Z","title_canon_sha256":"e0f06dfb95353613331e5c5251b49cce74bd5df925071d73a7ed66270f4474de"},"schema_version":"1.0","source":{"id":"1202.1828","kind":"arxiv","version":1}},"canonical_sha256":"96af75a2e1148f31836fd12f8db31f1fe0d2718aa71de43e3b5394b69d17da12","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96af75a2e1148f31836fd12f8db31f1fe0d2718aa71de43e3b5394b69d17da12","first_computed_at":"2026-05-18T03:28:54.034436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:28:54.034436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sR3QbCyrCUgHlF9tGSulHOR2C3Q6ZGIDRV5xmsFJzCd33F1OG1wRFAK2aPLt9zNkrGcmAP2FXYbQKz612Lc1DA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:28:54.035012Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.1828","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bc40187cc764955f097b1719a9cb30e14a8dfaac48ffeafab38d77f93111e4a","sha256:15f1f99df94c0214426a2c6bd22d3b1fb6329403ed350aec536cd95cb3da3e3f"],"state_sha256":"34509565c058c9e8c523d7d986d69d8bd005153d548bcbd325e1ec86c3bf7ac8"}