{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:CDZ6OUFJLKRUYDOXKEGTABMEF3","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":"459f238da3e6021d7db55a523e39b2cebd2c10b8523b8f0e9b1f21e9399e0b67","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2016-09-06T05:30:23Z","title_canon_sha256":"93a50312532fcb992c4bfb183132d22426470a3cde7aab968991222dac48bc55"},"schema_version":"1.0","source":{"id":"1609.01398","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01398","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01398v2","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01398","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"pith_short_12","alias_value":"CDZ6OUFJLKRU","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CDZ6OUFJLKRUYDOX","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CDZ6OUFJ","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:79b1c327ca4729f99dd7b6e8b3efe66ec3118832e1a80d59f5a82606301b5243","target":"graph","created_at":"2026-05-18T00:46:07Z","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":"Spin chains can realise perfect quantum state transfer between the two ends via judicious choice of coupling strengths. In this paper, we study what other states can be created by engineering a spin chain. We conclude that, up to local phases, all single excitation quantum states with support on every site of the chain can be created. We pay particular attention to the generation of W-states that are superposed over every site of the chain.","authors_text":"Alastair Kay","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2016-09-06T05:30:23Z","title":"Generating Quantum States through Spin Chain Dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01398","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:f7eec6aeacd25397af0f066775b1f52836f80876f6b5fdaa83ea2441002a580b","target":"record","created_at":"2026-05-18T00:46:07Z","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":"459f238da3e6021d7db55a523e39b2cebd2c10b8523b8f0e9b1f21e9399e0b67","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2016-09-06T05:30:23Z","title_canon_sha256":"93a50312532fcb992c4bfb183132d22426470a3cde7aab968991222dac48bc55"},"schema_version":"1.0","source":{"id":"1609.01398","kind":"arxiv","version":2}},"canonical_sha256":"10f3e750a95aa34c0dd7510d3005842efb0c26a636a2227b3f2afe7c7dc8ad5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"10f3e750a95aa34c0dd7510d3005842efb0c26a636a2227b3f2afe7c7dc8ad5e","first_computed_at":"2026-05-18T00:46:07.986712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:07.986712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eAQz00uPSremg3xjfYqnrQ93125q2Hk44kEfuICAUDAXQlCI24F5jjKQz3FP0Tu6HKiNGWWp+QwWK1UjnjOUCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:07.987199Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.01398","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f7eec6aeacd25397af0f066775b1f52836f80876f6b5fdaa83ea2441002a580b","sha256:79b1c327ca4729f99dd7b6e8b3efe66ec3118832e1a80d59f5a82606301b5243"],"state_sha256":"6c6ea7f1857bf95325154389c3715fd444ef8f5fd10f8c01bbdeb260ede74977"}