{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:ZG4PRITEPCYQESHFQUGVQJ4EDP","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":"22ace0988afb9f969a4f3712e85e7e1de56405eb576c91facae53de3574173eb","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-05T19:24:58Z","title_canon_sha256":"250832effa52b1b7d44f5722d77be8d5e2bb9ed9e269307d2f457b0e0bde1af2"},"schema_version":"1.0","source":{"id":"1001.0748","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.0748","created_at":"2026-05-18T04:40:09Z"},{"alias_kind":"arxiv_version","alias_value":"1001.0748v3","created_at":"2026-05-18T04:40:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.0748","created_at":"2026-05-18T04:40:09Z"},{"alias_kind":"pith_short_12","alias_value":"ZG4PRITEPCYQ","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"ZG4PRITEPCYQESHF","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"ZG4PRITE","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:3e41e15826679ffc058108cf66d9befecc3ba9cad130e2540e63360f0c47e54d","target":"graph","created_at":"2026-05-18T04:40:09Z","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 a modified frustrated dipolar array recently proposed by M\\\"{o}ller and Moessner [Phys. Rev. Lett. \\textbf{96}, 237202 (2006)], which is based on an array manufactured lithographically by Wang \\emph{et al.} [Nature (London) \\textbf{439}, 303 (2006)] and consists of introducing a height offset $h$ between islands (dipoles) pointing along the two different lattice directions. The ground-states and excitations are studied as a function of $h$. We have found, in qualitative agreement with the results of M\\\"{o}ller and Moessner, that the ground-state changes for $h>h_{1}$, where $h_{1}= 0.","authors_text":"A. R. Pereira, L. A. S. M\\'ol, W. A. Moura-Melo","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-05T19:24:58Z","title":"Conditions for free magnetic monopoles in nanoscale square arrays of dipolar spin ice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.0748","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":"sha256:8849ce5fbeb76d7f81f30712e0c8ec0875b6a85cf983253caf041eee5b668b87","target":"record","created_at":"2026-05-18T04:40:09Z","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":"22ace0988afb9f969a4f3712e85e7e1de56405eb576c91facae53de3574173eb","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-05T19:24:58Z","title_canon_sha256":"250832effa52b1b7d44f5722d77be8d5e2bb9ed9e269307d2f457b0e0bde1af2"},"schema_version":"1.0","source":{"id":"1001.0748","kind":"arxiv","version":3}},"canonical_sha256":"c9b8f8a26478b10248e5850d5827841bcc3c8f9ef5192c27ac3b01a7ca5b101f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9b8f8a26478b10248e5850d5827841bcc3c8f9ef5192c27ac3b01a7ca5b101f","first_computed_at":"2026-05-18T04:40:09.454555Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:40:09.454555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xItgPTyrYMr6omWg0lQb9jmah2UhH/1ZpVV3a3a6H1ILQP8vKHid9aoelA32dY7EZQJIZzq1g2QgP9SkKJRqDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:40:09.455045Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.0748","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8849ce5fbeb76d7f81f30712e0c8ec0875b6a85cf983253caf041eee5b668b87","sha256:3e41e15826679ffc058108cf66d9befecc3ba9cad130e2540e63360f0c47e54d"],"state_sha256":"a4e2b10ed7a90ccf4d67632e15d90f37e705a8d544a017206abd911451bfa5c6"}