{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:5CSDYY4WLTGAC3S7ZOUKLOFPEM","short_pith_number":"pith:5CSDYY4W","canonical_record":{"source":{"id":"1201.6375","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-01-30T21:16:11Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"c31f2ae2f11fa5dfcb251789286ab3ff502af697c356502360008d5cbffbfea9","abstract_canon_sha256":"86107179aba10fd6e9d3ff9b987f1e46caa4906765f221d4e2f03f9405e41b20"},"schema_version":"1.0"},"canonical_sha256":"e8a43c63965ccc016e5fcba8a5b8af23175979294c0aa1481bd690f9ae2ad0af","source":{"kind":"arxiv","id":"1201.6375","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.6375","created_at":"2026-05-18T03:16:17Z"},{"alias_kind":"arxiv_version","alias_value":"1201.6375v2","created_at":"2026-05-18T03:16:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.6375","created_at":"2026-05-18T03:16:17Z"},{"alias_kind":"pith_short_12","alias_value":"5CSDYY4WLTGA","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"5CSDYY4WLTGAC3S7","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"5CSDYY4W","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:5CSDYY4WLTGAC3S7ZOUKLOFPEM","target":"record","payload":{"canonical_record":{"source":{"id":"1201.6375","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-01-30T21:16:11Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"c31f2ae2f11fa5dfcb251789286ab3ff502af697c356502360008d5cbffbfea9","abstract_canon_sha256":"86107179aba10fd6e9d3ff9b987f1e46caa4906765f221d4e2f03f9405e41b20"},"schema_version":"1.0"},"canonical_sha256":"e8a43c63965ccc016e5fcba8a5b8af23175979294c0aa1481bd690f9ae2ad0af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:17.640699Z","signature_b64":"C9fZWJYC/RwjnMp276mcbAIaVUV8y8mhv9J6oKPxPbxEAL2lc2Qmne/ZMCAz42EIjqEPS6+WSUGQhKSgSuqlBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e8a43c63965ccc016e5fcba8a5b8af23175979294c0aa1481bd690f9ae2ad0af","last_reissued_at":"2026-05-18T03:16:17.639867Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:17.639867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.6375","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:16:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"97jiO8LYokMhUBl8wPCoFaRuIGdURSHc1B8g+Wq1lKdiTggYXee4B6p5LWyjRcH0BfE2ghkbMoNYD3bs8rO8CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T09:01:42.451754Z"},"content_sha256":"46e16ae9657f44ce8214f4cad6573300f5ad3c258df24ceb71631323e71f3a7e","schema_version":"1.0","event_id":"sha256:46e16ae9657f44ce8214f4cad6573300f5ad3c258df24ceb71631323e71f3a7e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:5CSDYY4WLTGAC3S7ZOUKLOFPEM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exchange constants and spin waves of the orbital ordered, non-collinear spinel MnV$_2$O$_4$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"R. Nanguneri, S. Y. Savrasov","submitted_at":"2012-01-30T21:16:11Z","abstract_excerpt":"We study the exchange constants of MnV$_2$O$_4$ using magnetic force theorem and local spin density approximation of density functional theory supplemented with a correction due to on-site Hubbard interaction U. We obtain the exchanges for three different orbital orderings of the Vanadium atoms of the spinel. We then map the exchange constants to a Heisenberg model with single-ion anisotropy and solve for the spin-wave excitations in the non-collinear, low temperature phase of the spinel. The single-ion anisotropy parameters are obtained from an atomic multiplet exact-diagonalization program, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.6375","kind":"arxiv","version":2},"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":"2026-05-18T03:16:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D9ZrjXETRNn5m/lci9+4RmYDn+pTwxU4qz3V1s2cxVd/pMjwOVL+NIi+adEIQOXSNVneuqWMJYwdnUN7llGFDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T09:01:42.452085Z"},"content_sha256":"211eb084a7f5561b1915723b8a42840149000d958ae8da1f94dcf0b2e13b0a1b","schema_version":"1.0","event_id":"sha256:211eb084a7f5561b1915723b8a42840149000d958ae8da1f94dcf0b2e13b0a1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5CSDYY4WLTGAC3S7ZOUKLOFPEM/bundle.json","state_url":"https://pith.science/pith/5CSDYY4WLTGAC3S7ZOUKLOFPEM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5CSDYY4WLTGAC3S7ZOUKLOFPEM/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":"2026-07-06T09:01:42Z","links":{"resolver":"https://pith.science/pith/5CSDYY4WLTGAC3S7ZOUKLOFPEM","bundle":"https://pith.science/pith/5CSDYY4WLTGAC3S7ZOUKLOFPEM/bundle.json","state":"https://pith.science/pith/5CSDYY4WLTGAC3S7ZOUKLOFPEM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5CSDYY4WLTGAC3S7ZOUKLOFPEM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5CSDYY4WLTGAC3S7ZOUKLOFPEM","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":"86107179aba10fd6e9d3ff9b987f1e46caa4906765f221d4e2f03f9405e41b20","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-01-30T21:16:11Z","title_canon_sha256":"c31f2ae2f11fa5dfcb251789286ab3ff502af697c356502360008d5cbffbfea9"},"schema_version":"1.0","source":{"id":"1201.6375","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.6375","created_at":"2026-05-18T03:16:17Z"},{"alias_kind":"arxiv_version","alias_value":"1201.6375v2","created_at":"2026-05-18T03:16:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.6375","created_at":"2026-05-18T03:16:17Z"},{"alias_kind":"pith_short_12","alias_value":"5CSDYY4WLTGA","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"5CSDYY4WLTGAC3S7","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"5CSDYY4W","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:211eb084a7f5561b1915723b8a42840149000d958ae8da1f94dcf0b2e13b0a1b","target":"graph","created_at":"2026-05-18T03:16:17Z","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 study the exchange constants of MnV$_2$O$_4$ using magnetic force theorem and local spin density approximation of density functional theory supplemented with a correction due to on-site Hubbard interaction U. We obtain the exchanges for three different orbital orderings of the Vanadium atoms of the spinel. We then map the exchange constants to a Heisenberg model with single-ion anisotropy and solve for the spin-wave excitations in the non-collinear, low temperature phase of the spinel. The single-ion anisotropy parameters are obtained from an atomic multiplet exact-diagonalization program, ","authors_text":"R. Nanguneri, S. Y. Savrasov","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-01-30T21:16:11Z","title":"Exchange constants and spin waves of the orbital ordered, non-collinear spinel MnV$_2$O$_4$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.6375","kind":"arxiv","version":2},"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":"sha256:46e16ae9657f44ce8214f4cad6573300f5ad3c258df24ceb71631323e71f3a7e","target":"record","created_at":"2026-05-18T03:16:17Z","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":"86107179aba10fd6e9d3ff9b987f1e46caa4906765f221d4e2f03f9405e41b20","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-01-30T21:16:11Z","title_canon_sha256":"c31f2ae2f11fa5dfcb251789286ab3ff502af697c356502360008d5cbffbfea9"},"schema_version":"1.0","source":{"id":"1201.6375","kind":"arxiv","version":2}},"canonical_sha256":"e8a43c63965ccc016e5fcba8a5b8af23175979294c0aa1481bd690f9ae2ad0af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e8a43c63965ccc016e5fcba8a5b8af23175979294c0aa1481bd690f9ae2ad0af","first_computed_at":"2026-05-18T03:16:17.639867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:17.639867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C9fZWJYC/RwjnMp276mcbAIaVUV8y8mhv9J6oKPxPbxEAL2lc2Qmne/ZMCAz42EIjqEPS6+WSUGQhKSgSuqlBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:17.640699Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.6375","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46e16ae9657f44ce8214f4cad6573300f5ad3c258df24ceb71631323e71f3a7e","sha256:211eb084a7f5561b1915723b8a42840149000d958ae8da1f94dcf0b2e13b0a1b"],"state_sha256":"1e244981604647ca490eb954f8b6bde603d6df50e449723ca6ae0d8f61ab9453"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xnT5k/pLE0zQ+C+fYzkdeTzxqaekXhtTZD+3xEvmAKsRktkbha7Rnet0mWe7UjryIcme02JXDodAfhQu2pDWDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T09:01:42.453914Z","bundle_sha256":"7c90cb0b38a88d721999da429dca2536c31afd804265056cd471075fc7ac18b7"}}