{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7JHPVSCPA4P7UDEAETRAMATEDR","short_pith_number":"pith:7JHPVSCP","canonical_record":{"source":{"id":"1211.6960","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-11-29T15:57:56Z","cross_cats_sorted":[],"title_canon_sha256":"ecd7b90c1d49fda61e1471ac50a4c0d3804328e8fec8aef877f1e2a69c7027c6","abstract_canon_sha256":"98ca7f0da1ccbbc0b61da3d26ff5ce49617758d6ddeac3d7121a0b7d31ab136b"},"schema_version":"1.0"},"canonical_sha256":"fa4efac84f071ffa0c8024e20602641c5f36cffe93b10f28fb78638ad8ce972d","source":{"kind":"arxiv","id":"1211.6960","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.6960","created_at":"2026-05-18T03:25:27Z"},{"alias_kind":"arxiv_version","alias_value":"1211.6960v1","created_at":"2026-05-18T03:25:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.6960","created_at":"2026-05-18T03:25:27Z"},{"alias_kind":"pith_short_12","alias_value":"7JHPVSCPA4P7","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"7JHPVSCPA4P7UDEA","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"7JHPVSCP","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7JHPVSCPA4P7UDEAETRAMATEDR","target":"record","payload":{"canonical_record":{"source":{"id":"1211.6960","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-11-29T15:57:56Z","cross_cats_sorted":[],"title_canon_sha256":"ecd7b90c1d49fda61e1471ac50a4c0d3804328e8fec8aef877f1e2a69c7027c6","abstract_canon_sha256":"98ca7f0da1ccbbc0b61da3d26ff5ce49617758d6ddeac3d7121a0b7d31ab136b"},"schema_version":"1.0"},"canonical_sha256":"fa4efac84f071ffa0c8024e20602641c5f36cffe93b10f28fb78638ad8ce972d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:25:27.119966Z","signature_b64":"8NjhM0NFCIa19QDpEQGr8/9mtNe/KqzINRf58twsh8lK7LqIHzu6KJ0Wq0+G5Un2CXQvXxIeGOL9kBFYA+buBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fa4efac84f071ffa0c8024e20602641c5f36cffe93b10f28fb78638ad8ce972d","last_reissued_at":"2026-05-18T03:25:27.119263Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:25:27.119263Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.6960","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":"2026-05-18T03:25:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bhqhzEjtT2yKGbpNdd5rvwNToZ+gQap5RQZonrfhf3HpmruY4DXZ46QYuZjLm7HH/Jn/ivDxKWNts35QYcb/AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:42:25.095873Z"},"content_sha256":"41b08aa18324b4240def2b7a1ee6ee70a591c017ed3481467e462bcc2c132cf2","schema_version":"1.0","event_id":"sha256:41b08aa18324b4240def2b7a1ee6ee70a591c017ed3481467e462bcc2c132cf2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7JHPVSCPA4P7UDEAETRAMATEDR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The magnetic structure of bixbyite a-Mn2O3: a combined density functional theory DFT+U and neutron diffraction study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Anna Llobet, Eric Cockayne, Hui Wu, Igor Levin","submitted_at":"2012-11-29T15:57:56Z","abstract_excerpt":"First principles density functional theory DFT+U calculations and experimental neutron diffraction structure analyses were used to determine the low-temperature crystallographic and magnetic structure of bixbyite Mn2O3. The energies of various magnetic arrangements, calculated from first principles, were fit to a cluster-expansion model using a Bayesian method that overcomes a problem of underfitting caused by the limited number of input magnetic configurations. The model was used to predict the lowest-energy magnetic states. Experimental determination of magnetic structure benefited from opti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.6960","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":"2026-05-18T03:25:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PIXIsR3OBWbe60JUCdIPYVhWsHgayKWOZ+PoWruJvKF4Kiv3ANKHWFZjGgb+CCS84DijK1dtzs2uLkLsR+7JDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:42:25.096217Z"},"content_sha256":"555107b91d0d69a4367c1dc859621c588da097810e707072a049601ebe6170d8","schema_version":"1.0","event_id":"sha256:555107b91d0d69a4367c1dc859621c588da097810e707072a049601ebe6170d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7JHPVSCPA4P7UDEAETRAMATEDR/bundle.json","state_url":"https://pith.science/pith/7JHPVSCPA4P7UDEAETRAMATEDR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7JHPVSCPA4P7UDEAETRAMATEDR/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":"2026-06-04T02:42:25Z","links":{"resolver":"https://pith.science/pith/7JHPVSCPA4P7UDEAETRAMATEDR","bundle":"https://pith.science/pith/7JHPVSCPA4P7UDEAETRAMATEDR/bundle.json","state":"https://pith.science/pith/7JHPVSCPA4P7UDEAETRAMATEDR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7JHPVSCPA4P7UDEAETRAMATEDR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7JHPVSCPA4P7UDEAETRAMATEDR","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":"98ca7f0da1ccbbc0b61da3d26ff5ce49617758d6ddeac3d7121a0b7d31ab136b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-11-29T15:57:56Z","title_canon_sha256":"ecd7b90c1d49fda61e1471ac50a4c0d3804328e8fec8aef877f1e2a69c7027c6"},"schema_version":"1.0","source":{"id":"1211.6960","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.6960","created_at":"2026-05-18T03:25:27Z"},{"alias_kind":"arxiv_version","alias_value":"1211.6960v1","created_at":"2026-05-18T03:25:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.6960","created_at":"2026-05-18T03:25:27Z"},{"alias_kind":"pith_short_12","alias_value":"7JHPVSCPA4P7","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"7JHPVSCPA4P7UDEA","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"7JHPVSCP","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:555107b91d0d69a4367c1dc859621c588da097810e707072a049601ebe6170d8","target":"graph","created_at":"2026-05-18T03:25:27Z","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":"First principles density functional theory DFT+U calculations and experimental neutron diffraction structure analyses were used to determine the low-temperature crystallographic and magnetic structure of bixbyite Mn2O3. The energies of various magnetic arrangements, calculated from first principles, were fit to a cluster-expansion model using a Bayesian method that overcomes a problem of underfitting caused by the limited number of input magnetic configurations. The model was used to predict the lowest-energy magnetic states. Experimental determination of magnetic structure benefited from opti","authors_text":"Anna Llobet, Eric Cockayne, Hui Wu, Igor Levin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-11-29T15:57:56Z","title":"The magnetic structure of bixbyite a-Mn2O3: a combined density functional theory DFT+U and neutron diffraction study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.6960","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":"sha256:41b08aa18324b4240def2b7a1ee6ee70a591c017ed3481467e462bcc2c132cf2","target":"record","created_at":"2026-05-18T03:25:27Z","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":"98ca7f0da1ccbbc0b61da3d26ff5ce49617758d6ddeac3d7121a0b7d31ab136b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-11-29T15:57:56Z","title_canon_sha256":"ecd7b90c1d49fda61e1471ac50a4c0d3804328e8fec8aef877f1e2a69c7027c6"},"schema_version":"1.0","source":{"id":"1211.6960","kind":"arxiv","version":1}},"canonical_sha256":"fa4efac84f071ffa0c8024e20602641c5f36cffe93b10f28fb78638ad8ce972d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa4efac84f071ffa0c8024e20602641c5f36cffe93b10f28fb78638ad8ce972d","first_computed_at":"2026-05-18T03:25:27.119263Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:25:27.119263Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8NjhM0NFCIa19QDpEQGr8/9mtNe/KqzINRf58twsh8lK7LqIHzu6KJ0Wq0+G5Un2CXQvXxIeGOL9kBFYA+buBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:25:27.119966Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.6960","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41b08aa18324b4240def2b7a1ee6ee70a591c017ed3481467e462bcc2c132cf2","sha256:555107b91d0d69a4367c1dc859621c588da097810e707072a049601ebe6170d8"],"state_sha256":"babe040f572aea5fcd0c865e9caa47859b5e9363e75ff17188dcdfc8ba6f838a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QC6JNvkrxO2CqLR0yiwYh/nMl/ms3kDaQdKTj8L9BnOtSWSjMJTOAstwrZGFEZXGLbY9hDTkTErusO5SwvKdBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T02:42:25.098351Z","bundle_sha256":"da1f2ed66fa28091592b5acbe2c638db59601b78d0868cf6d6b91d694603c11c"}}