{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BHSPVVGTPGBYYEHYN5LOYLU6OY","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":"cc3ee1b049d21efdff8c0397a2030549afaf5b4d11c3d84028872eede25d517d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2009-08-03T12:03:20Z","title_canon_sha256":"043d467e9686b8098d19559af4e00e8c127bbc896886e4e909144d1f80a4b73b"},"schema_version":"1.0","source":{"id":"0908.0236","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.0236","created_at":"2026-05-18T03:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"0908.0236v1","created_at":"2026-05-18T03:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.0236","created_at":"2026-05-18T03:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"BHSPVVGTPGBY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BHSPVVGTPGBYYEHY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BHSPVVGT","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:5a89d325b938527ac0312aef1dcd41f3addc92e9290a93c3ec06861968cd9750","target":"graph","created_at":"2026-05-18T03:23:58Z","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 study the rich properties of the imbalanced antiferromagnet in an optical lattice. We present its phase diagram, discuss spin waves and explore the emergence of topological excitations in two dimensions, known as merons, which are responsible for a Kosterlitz-Thouless transition that has never unambiguously been observed.","authors_text":"Arnaud Koetsier, F. van Liere, H. T. C. Stoof","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2009-08-03T12:03:20Z","title":"The imbalanced antiferromagnet in an optical lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.0236","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:f0d86a409175d31176f374cfa8bf7b54ce89edf00bbd5af44b0291b725896e26","target":"record","created_at":"2026-05-18T03:23:58Z","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":"cc3ee1b049d21efdff8c0397a2030549afaf5b4d11c3d84028872eede25d517d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2009-08-03T12:03:20Z","title_canon_sha256":"043d467e9686b8098d19559af4e00e8c127bbc896886e4e909144d1f80a4b73b"},"schema_version":"1.0","source":{"id":"0908.0236","kind":"arxiv","version":1}},"canonical_sha256":"09e4fad4d379838c10f86f56ec2e9e761b22a7d8da235ad22f4c62c04f06b82c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"09e4fad4d379838c10f86f56ec2e9e761b22a7d8da235ad22f4c62c04f06b82c","first_computed_at":"2026-05-18T03:23:58.408164Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:58.408164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z4rSYcM4S31psoPeC1tbc6vcsUhvte8hrVxrA493+plwBqdDaMsCxyRpDiGwly8D56/+qIhoJdAV+6/y4hWbCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:58.408685Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.0236","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0d86a409175d31176f374cfa8bf7b54ce89edf00bbd5af44b0291b725896e26","sha256:5a89d325b938527ac0312aef1dcd41f3addc92e9290a93c3ec06861968cd9750"],"state_sha256":"460358b33e21c10cafd731f91e7b5e8a2641414f67eacf02bb543b34585e73a0"}