{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:75D5OWTTRWYNOFU5SMETQFKLK2","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":"be0558e728e6c31c25e54a457b6c8a6e3222ea1a5f656a515d13723784051258","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-21T09:53:40Z","title_canon_sha256":"4f513ab8e0b5434699075a0203073a9388efd3a9890c516980fe606e9f9573ff"},"schema_version":"1.0","source":{"id":"1510.06185","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.06185","created_at":"2026-05-18T01:24:17Z"},{"alias_kind":"arxiv_version","alias_value":"1510.06185v1","created_at":"2026-05-18T01:24:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.06185","created_at":"2026-05-18T01:24:17Z"},{"alias_kind":"pith_short_12","alias_value":"75D5OWTTRWYN","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"75D5OWTTRWYNOFU5","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"75D5OWTT","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:445dfe1437bde5e67960d65222f36ea73991b7e34c14df3f6e1f48b82a82605e","target":"graph","created_at":"2026-05-18T01:24:17Z","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 a geometrically frustrated spin-1/2 Ising-Heisenberg diamond chain, which is an exactly solvable model when assuming part of the exchange interactions as Heisenberg ones and another part as Ising ones. A small $XY$ part is afterwards perturbatively added to the Ising couplings, which enabled us to derive an effective Hamiltonian describing the low-energy behavior of the modified but full quantum version of the initial model. The effective model is much simpler and free of frustration. It is shown that the $XY$ part added to the originally Ising interaction gives rise to the spin-li","authors_text":"Bohdan Lisnyi, Jozef Strecka, Oleg Derzhko, Olesia Krupnitska","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-21T09:53:40Z","title":"Effective low-energy description of almost Ising-Heisenberg diamond chain"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.06185","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":"sha256:29b15d89d2426b92db22a300760aaabef19b360b5d199444336b7ecc0a4efb87","target":"record","created_at":"2026-05-18T01:24:17Z","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":"be0558e728e6c31c25e54a457b6c8a6e3222ea1a5f656a515d13723784051258","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-10-21T09:53:40Z","title_canon_sha256":"4f513ab8e0b5434699075a0203073a9388efd3a9890c516980fe606e9f9573ff"},"schema_version":"1.0","source":{"id":"1510.06185","kind":"arxiv","version":1}},"canonical_sha256":"ff47d75a738db0d7169d930938154b56b004948730540daf10a1aae43af1e71f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff47d75a738db0d7169d930938154b56b004948730540daf10a1aae43af1e71f","first_computed_at":"2026-05-18T01:24:17.962525Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:17.962525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"151roQp4om8RLVwYmZ4dhzPMY+Qh2sZK6+Sb6sAnvqpEv6NaDl3Tya45AhZlW+2yFhJ3jBnsWvhm74O3WWpGDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:17.963014Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.06185","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:29b15d89d2426b92db22a300760aaabef19b360b5d199444336b7ecc0a4efb87","sha256:445dfe1437bde5e67960d65222f36ea73991b7e34c14df3f6e1f48b82a82605e"],"state_sha256":"f35c42a7c28725c7917b6b04b7d58de788ab579d0d66eab4b9f3d6fb334750b9"}