{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:JC3KJVHOMGETEZNA2XFYSVDIZF","short_pith_number":"pith:JC3KJVHO","canonical_record":{"source":{"id":"1610.07113","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-23T02:21:38Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"fceefa3fdbedaf7c195854c68ec92002b960631ef17240cedcfdffc1fa66674c","abstract_canon_sha256":"603982095addc4b670463fa0a357ba71e27f76240b9a4f864f4ce15603bdc594"},"schema_version":"1.0"},"canonical_sha256":"48b6a4d4ee61893265a0d5cb895468c97094f184f2185d1ddf1e238a0e526218","source":{"kind":"arxiv","id":"1610.07113","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07113","created_at":"2026-05-18T00:55:06Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07113v1","created_at":"2026-05-18T00:55:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07113","created_at":"2026-05-18T00:55:06Z"},{"alias_kind":"pith_short_12","alias_value":"JC3KJVHOMGET","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"JC3KJVHOMGETEZNA","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"JC3KJVHO","created_at":"2026-05-18T12:30:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:JC3KJVHOMGETEZNA2XFYSVDIZF","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07113","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-23T02:21:38Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"fceefa3fdbedaf7c195854c68ec92002b960631ef17240cedcfdffc1fa66674c","abstract_canon_sha256":"603982095addc4b670463fa0a357ba71e27f76240b9a4f864f4ce15603bdc594"},"schema_version":"1.0"},"canonical_sha256":"48b6a4d4ee61893265a0d5cb895468c97094f184f2185d1ddf1e238a0e526218","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:06.829482Z","signature_b64":"5oMrt4L22LomuguNdOzR22EkrikrXukKqi/KUWc1epdxSXrjEBp/fSgLvKlnSChGXPKiL93/eB4dJ9J+SeanDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48b6a4d4ee61893265a0d5cb895468c97094f184f2185d1ddf1e238a0e526218","last_reissued_at":"2026-05-18T00:55:06.828823Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:06.828823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07113","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":"2026-05-18T00:55:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a15zJCCEP6/vNPpRsD97hfDXEwJm+vpu3A7LCJ6yGBcK5ZtY8vmZ6e/ebVEi5QsdHXiRcM8l93bHn2g/TTuCAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T02:12:32.219370Z"},"content_sha256":"179664f6bacf4652493f256ee105c500a05a7815469964880eedea94615eb8eb","schema_version":"1.0","event_id":"sha256:179664f6bacf4652493f256ee105c500a05a7815469964880eedea94615eb8eb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:JC3KJVHOMGETEZNA2XFYSVDIZF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unusual UUDD magnetic chain structure of the spin-1/2 tetragonally distorted spinel GeCu2O4","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"C. R. dela Cruz, J. -G. Cheng, S. D. Mahanti, T. Zou, V. O. Garlea, X. Ke, Y. -Q. Cai","submitted_at":"2016-10-23T02:21:38Z","abstract_excerpt":"GeCu2O4 exhibits a tetragonal spinel structure due to the strong Jahn-Teller distortion associated with Cu2+ ions. We show that its magnetic structure can be described as slabs composed of a pair of layers with orthogonally oriented spin 1/2 Cu chains in the basal ab plane. The spins between the two layers within a slab are collinearly aligned while the spin directions of neighboring slabs are perpendicular to each other. Interestingly, we find that spins along each chain form an unusual up-up-down-down (UUDD) pattern, suggesting a non-negligible nearest-neighbor biquadratic exchange interacti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07113","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":"2026-05-18T00:55:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nq6rD63/aJCrVcBt+Iv+LJCLUalX+iusnToTQTZ+YbpHgQy1mqNJ3KeWfBr4UPGfRicjzgujyzHe1ZH42xLDCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T02:12:32.219992Z"},"content_sha256":"a8cc03c1b1e8a92555e37064462b5f1ad47c3ec9809a79dc07309b526faaa934","schema_version":"1.0","event_id":"sha256:a8cc03c1b1e8a92555e37064462b5f1ad47c3ec9809a79dc07309b526faaa934"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JC3KJVHOMGETEZNA2XFYSVDIZF/bundle.json","state_url":"https://pith.science/pith/JC3KJVHOMGETEZNA2XFYSVDIZF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JC3KJVHOMGETEZNA2XFYSVDIZF/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":"2026-05-19T02:12:32Z","links":{"resolver":"https://pith.science/pith/JC3KJVHOMGETEZNA2XFYSVDIZF","bundle":"https://pith.science/pith/JC3KJVHOMGETEZNA2XFYSVDIZF/bundle.json","state":"https://pith.science/pith/JC3KJVHOMGETEZNA2XFYSVDIZF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JC3KJVHOMGETEZNA2XFYSVDIZF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:JC3KJVHOMGETEZNA2XFYSVDIZF","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":"603982095addc4b670463fa0a357ba71e27f76240b9a4f864f4ce15603bdc594","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-23T02:21:38Z","title_canon_sha256":"fceefa3fdbedaf7c195854c68ec92002b960631ef17240cedcfdffc1fa66674c"},"schema_version":"1.0","source":{"id":"1610.07113","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07113","created_at":"2026-05-18T00:55:06Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07113v1","created_at":"2026-05-18T00:55:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07113","created_at":"2026-05-18T00:55:06Z"},{"alias_kind":"pith_short_12","alias_value":"JC3KJVHOMGET","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"JC3KJVHOMGETEZNA","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"JC3KJVHO","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:a8cc03c1b1e8a92555e37064462b5f1ad47c3ec9809a79dc07309b526faaa934","target":"graph","created_at":"2026-05-18T00:55:06Z","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":"GeCu2O4 exhibits a tetragonal spinel structure due to the strong Jahn-Teller distortion associated with Cu2+ ions. We show that its magnetic structure can be described as slabs composed of a pair of layers with orthogonally oriented spin 1/2 Cu chains in the basal ab plane. The spins between the two layers within a slab are collinearly aligned while the spin directions of neighboring slabs are perpendicular to each other. Interestingly, we find that spins along each chain form an unusual up-up-down-down (UUDD) pattern, suggesting a non-negligible nearest-neighbor biquadratic exchange interacti","authors_text":"C. R. dela Cruz, J. -G. Cheng, S. D. Mahanti, T. Zou, V. O. Garlea, X. Ke, Y. -Q. Cai","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-23T02:21:38Z","title":"Unusual UUDD magnetic chain structure of the spin-1/2 tetragonally distorted spinel GeCu2O4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07113","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":"sha256:179664f6bacf4652493f256ee105c500a05a7815469964880eedea94615eb8eb","target":"record","created_at":"2026-05-18T00:55:06Z","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":"603982095addc4b670463fa0a357ba71e27f76240b9a4f864f4ce15603bdc594","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-23T02:21:38Z","title_canon_sha256":"fceefa3fdbedaf7c195854c68ec92002b960631ef17240cedcfdffc1fa66674c"},"schema_version":"1.0","source":{"id":"1610.07113","kind":"arxiv","version":1}},"canonical_sha256":"48b6a4d4ee61893265a0d5cb895468c97094f184f2185d1ddf1e238a0e526218","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48b6a4d4ee61893265a0d5cb895468c97094f184f2185d1ddf1e238a0e526218","first_computed_at":"2026-05-18T00:55:06.828823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:06.828823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5oMrt4L22LomuguNdOzR22EkrikrXukKqi/KUWc1epdxSXrjEBp/fSgLvKlnSChGXPKiL93/eB4dJ9J+SeanDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:06.829482Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07113","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:179664f6bacf4652493f256ee105c500a05a7815469964880eedea94615eb8eb","sha256:a8cc03c1b1e8a92555e37064462b5f1ad47c3ec9809a79dc07309b526faaa934"],"state_sha256":"3f37dacec596bb0706f4dd7579448ad470f7b8d955e597f8ef5e19a8c3e6d953"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+AV6Balehm/JHTTBxM1jTmTIsoGh8x6cw7vGvVurmbzaxtmZe76g6n/U24L+egajyXCyOr5gZypFdvH+HyR0DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T02:12:32.221943Z","bundle_sha256":"1a0d0ef9e9252e176b6e7d8c9a90d2aae92d0d77d5d68d26c10f6121556264eb"}}