{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:JP6ARJ2GEHP2NB2E5GW4DL6EMV","short_pith_number":"pith:JP6ARJ2G","canonical_record":{"source":{"id":"1712.09050","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-25T10:24:43Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"c894b7d5ae890b5bcdbd90790f8b82c0eb610f341d441c0f51a78083f1fb6a20","abstract_canon_sha256":"0961164a8c5f523949a1ba0f189cf451170ecbae72775f519bc63bf7d0725367"},"schema_version":"1.0"},"canonical_sha256":"4bfc08a74621dfa68744e9adc1afc465647500411a5913067e5bbd12c6013c87","source":{"kind":"arxiv","id":"1712.09050","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.09050","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"arxiv_version","alias_value":"1712.09050v1","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.09050","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"pith_short_12","alias_value":"JP6ARJ2GEHP2","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JP6ARJ2GEHP2NB2E","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JP6ARJ2G","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:JP6ARJ2GEHP2NB2E5GW4DL6EMV","target":"record","payload":{"canonical_record":{"source":{"id":"1712.09050","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-25T10:24:43Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"c894b7d5ae890b5bcdbd90790f8b82c0eb610f341d441c0f51a78083f1fb6a20","abstract_canon_sha256":"0961164a8c5f523949a1ba0f189cf451170ecbae72775f519bc63bf7d0725367"},"schema_version":"1.0"},"canonical_sha256":"4bfc08a74621dfa68744e9adc1afc465647500411a5913067e5bbd12c6013c87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:02.457980Z","signature_b64":"QwK30CBB5EqUJsrq3uWAKw6Ss+AloZR+hXHfXQjVSP4yYEguaGNf0Gi4zJTn/s6EWhe2Oo4PTUuJtbjUe8XtDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4bfc08a74621dfa68744e9adc1afc465647500411a5913067e5bbd12c6013c87","last_reissued_at":"2026-05-18T00:22:02.457514Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:02.457514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.09050","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:22:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gONYvaYcIZRshG3kxZt4S+hh3f/7Ewl4oWqLdxJXn38yIqSsKegh3d6Gsyw35WX1AimsN2MH2JjaHDqgvQszCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:06:29.502036Z"},"content_sha256":"515e7c367bfbf19e02c65599d9ec0841207c3e80359d00b541020fa76f3a08bf","schema_version":"1.0","event_id":"sha256:515e7c367bfbf19e02c65599d9ec0841207c3e80359d00b541020fa76f3a08bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:JP6ARJ2GEHP2NB2E5GW4DL6EMV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interlayer Coupling Effect on a Bilayer Kitaev Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Akihisa Koga, Hiroyuki Tomishige, Joji Nasu","submitted_at":"2017-12-25T10:24:43Z","abstract_excerpt":"We investigate a bilayer Kitaev model, where two honeycomb layers are coupled by the Heisenberg interactions, to discuss effects of an interlayer coupling against the Kitaev quantum spin liquids (QSLs). In this model, there exists a local conserved quantity, which results in no long-range spin correlations in the system. Using the exact diagonalization, bond operator mean-field theory, and cluster expansion techniques, we study ground state properties in the system. The obtained results suggest the existence of a first-order quantum phase transition between the Kitaev QSL and singlet-dimer sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.09050","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:22:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tQv3Jt2s9t2yvVdVk81066vYpQBs6FDTkE9mmsZOFshQidh6MGMq7OHgsvTZ5nfxMLqYoeBpH9R0MSFWghhqBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:06:29.502764Z"},"content_sha256":"5341001dbeb65004d87f94a166dd513c12a14638c988f5d4a8cbacdf6f91879c","schema_version":"1.0","event_id":"sha256:5341001dbeb65004d87f94a166dd513c12a14638c988f5d4a8cbacdf6f91879c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JP6ARJ2GEHP2NB2E5GW4DL6EMV/bundle.json","state_url":"https://pith.science/pith/JP6ARJ2GEHP2NB2E5GW4DL6EMV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JP6ARJ2GEHP2NB2E5GW4DL6EMV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T23:06:29Z","links":{"resolver":"https://pith.science/pith/JP6ARJ2GEHP2NB2E5GW4DL6EMV","bundle":"https://pith.science/pith/JP6ARJ2GEHP2NB2E5GW4DL6EMV/bundle.json","state":"https://pith.science/pith/JP6ARJ2GEHP2NB2E5GW4DL6EMV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JP6ARJ2GEHP2NB2E5GW4DL6EMV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JP6ARJ2GEHP2NB2E5GW4DL6EMV","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":"0961164a8c5f523949a1ba0f189cf451170ecbae72775f519bc63bf7d0725367","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-25T10:24:43Z","title_canon_sha256":"c894b7d5ae890b5bcdbd90790f8b82c0eb610f341d441c0f51a78083f1fb6a20"},"schema_version":"1.0","source":{"id":"1712.09050","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.09050","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"arxiv_version","alias_value":"1712.09050v1","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.09050","created_at":"2026-05-18T00:22:02Z"},{"alias_kind":"pith_short_12","alias_value":"JP6ARJ2GEHP2","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JP6ARJ2GEHP2NB2E","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JP6ARJ2G","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:5341001dbeb65004d87f94a166dd513c12a14638c988f5d4a8cbacdf6f91879c","target":"graph","created_at":"2026-05-18T00:22:02Z","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 investigate a bilayer Kitaev model, where two honeycomb layers are coupled by the Heisenberg interactions, to discuss effects of an interlayer coupling against the Kitaev quantum spin liquids (QSLs). In this model, there exists a local conserved quantity, which results in no long-range spin correlations in the system. Using the exact diagonalization, bond operator mean-field theory, and cluster expansion techniques, we study ground state properties in the system. The obtained results suggest the existence of a first-order quantum phase transition between the Kitaev QSL and singlet-dimer sta","authors_text":"Akihisa Koga, Hiroyuki Tomishige, Joji Nasu","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-25T10:24:43Z","title":"Interlayer Coupling Effect on a Bilayer Kitaev Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.09050","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":"sha256:515e7c367bfbf19e02c65599d9ec0841207c3e80359d00b541020fa76f3a08bf","target":"record","created_at":"2026-05-18T00:22:02Z","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":"0961164a8c5f523949a1ba0f189cf451170ecbae72775f519bc63bf7d0725367","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-25T10:24:43Z","title_canon_sha256":"c894b7d5ae890b5bcdbd90790f8b82c0eb610f341d441c0f51a78083f1fb6a20"},"schema_version":"1.0","source":{"id":"1712.09050","kind":"arxiv","version":1}},"canonical_sha256":"4bfc08a74621dfa68744e9adc1afc465647500411a5913067e5bbd12c6013c87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4bfc08a74621dfa68744e9adc1afc465647500411a5913067e5bbd12c6013c87","first_computed_at":"2026-05-18T00:22:02.457514Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:02.457514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QwK30CBB5EqUJsrq3uWAKw6Ss+AloZR+hXHfXQjVSP4yYEguaGNf0Gi4zJTn/s6EWhe2Oo4PTUuJtbjUe8XtDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:02.457980Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.09050","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:515e7c367bfbf19e02c65599d9ec0841207c3e80359d00b541020fa76f3a08bf","sha256:5341001dbeb65004d87f94a166dd513c12a14638c988f5d4a8cbacdf6f91879c"],"state_sha256":"2f89965d98c80b88da69fdf3dd4c7d030c93c13dc4bd757a75b73db678dbf1b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"46bEyyHKY3ck8+QY6bgvosVP3MgXZXli6ro1qxvosBTYuA3x1nRhH+eWAGT7j1rHZfVzldlplIu/ehICtXbsBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:06:29.506669Z","bundle_sha256":"a06b3f6a0be029ac2632ef582c1341116768ecb5b61df851ee1c4997869243f1"}}