{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YXTJSGQSOKWNJ4XWV2SLQAO2WY","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":"724afe8f26d87e761a6bd2e63380af0fc5c83811de520e9ca12a053095df517d","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-25T13:20:58Z","title_canon_sha256":"ae90a07b94f77e039fa5d780396563aa537ce2d372623563bab906ae73738358"},"schema_version":"1.0","source":{"id":"1502.07160","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07160","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07160v1","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07160","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"pith_short_12","alias_value":"YXTJSGQSOKWN","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"YXTJSGQSOKWNJ4XW","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"YXTJSGQS","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:4f2a54f55d5dbc9af78ad814b11fd4199c87358ec57fa6bfe39091a23de0c4d2","target":"graph","created_at":"2026-05-18T01:40:54Z","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":"In this work, we consider a tight binding lattice with two non-Hermitian impurities. The system is described by a non-Hermitian generalization of the Aubry Andre model. We show for the first time that there exists topologically nontrivial edge states with real spectra in the PT symmetric region.","authors_text":"Cem Yuce","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-25T13:20:58Z","title":"Topological phase in a non-Hermitian PT symmetric system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07160","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":"sha256:0fde2d8065901d21711ebfe176ce138f75731eec9f220a643ad77d48c6d49a8e","target":"record","created_at":"2026-05-18T01:40:54Z","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":"724afe8f26d87e761a6bd2e63380af0fc5c83811de520e9ca12a053095df517d","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-25T13:20:58Z","title_canon_sha256":"ae90a07b94f77e039fa5d780396563aa537ce2d372623563bab906ae73738358"},"schema_version":"1.0","source":{"id":"1502.07160","kind":"arxiv","version":1}},"canonical_sha256":"c5e6991a1272acd4f2f6aea4b801dab63244e5aa74f3d600f8d771837da59b69","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5e6991a1272acd4f2f6aea4b801dab63244e5aa74f3d600f8d771837da59b69","first_computed_at":"2026-05-18T01:40:54.580495Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:54.580495Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WMPyCakiPB1jNnqwWKj2vMQ1O21MEVpoNqc4kXZ2mmAOjiRRTxbFtFeYLSTNVQI1xn/qz3MmgzH68H1GnoqVCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:54.581005Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.07160","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0fde2d8065901d21711ebfe176ce138f75731eec9f220a643ad77d48c6d49a8e","sha256:4f2a54f55d5dbc9af78ad814b11fd4199c87358ec57fa6bfe39091a23de0c4d2"],"state_sha256":"64bc75a4475009ba1a38e33879a86ff8cb000ffa3d0263f4ad909cbd2e6c9dcb"}