{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:NYKH5DYXTLC2WCBW4R5ID3QERI","short_pith_number":"pith:NYKH5DYX","canonical_record":{"source":{"id":"1902.03944","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-11T15:33:41Z","cross_cats_sorted":[],"title_canon_sha256":"2c413d2404510ee9abb45604c3e62ad424fc93eda981153d0b37181303549b87","abstract_canon_sha256":"65583913bb5569e472133c4bc015b53be8b56f9036cec232907d6c5561da2bec"},"schema_version":"1.0"},"canonical_sha256":"6e147e8f179ac5ab0836e47a81ee048a33c5b9c1686b6e00db254355079de075","source":{"kind":"arxiv","id":"1902.03944","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.03944","created_at":"2026-05-17T23:46:45Z"},{"alias_kind":"arxiv_version","alias_value":"1902.03944v1","created_at":"2026-05-17T23:46:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.03944","created_at":"2026-05-17T23:46:45Z"},{"alias_kind":"pith_short_12","alias_value":"NYKH5DYXTLC2","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"NYKH5DYXTLC2WCBW","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"NYKH5DYX","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:NYKH5DYXTLC2WCBW4R5ID3QERI","target":"record","payload":{"canonical_record":{"source":{"id":"1902.03944","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-11T15:33:41Z","cross_cats_sorted":[],"title_canon_sha256":"2c413d2404510ee9abb45604c3e62ad424fc93eda981153d0b37181303549b87","abstract_canon_sha256":"65583913bb5569e472133c4bc015b53be8b56f9036cec232907d6c5561da2bec"},"schema_version":"1.0"},"canonical_sha256":"6e147e8f179ac5ab0836e47a81ee048a33c5b9c1686b6e00db254355079de075","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:45.732362Z","signature_b64":"z3MXgN5OyY0OdPXcDHUYSdw/qLNkeqfSDycl9C9tUnERRXRQMjmifT2Dz7uwGqP6pm4V+eJV+ld4g8ulsurrDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e147e8f179ac5ab0836e47a81ee048a33c5b9c1686b6e00db254355079de075","last_reissued_at":"2026-05-17T23:46:45.731848Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:45.731848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.03944","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":"2026-05-17T23:46:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kZaAKQQqnfUO4s546l+oQYGOyxrbdS5OHNc1YBhYHut6GTwuTAaSE17Wej9VluA0vxheO0pruE16qQwjQW04Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:43:51.909394Z"},"content_sha256":"dd3b1edbb5a122ac511a71123a9fda4b264b9b62e9c908b60fe7313e350e71d5","schema_version":"1.0","event_id":"sha256:dd3b1edbb5a122ac511a71123a9fda4b264b9b62e9c908b60fe7313e350e71d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:NYKH5DYXTLC2WCBW4R5ID3QERI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetism and Magneto-optical Effects in Bulk and Few-layer CrI$_3$: A Theoretical GGA + U Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Guang-Yu Guo, Vijay Kumar Gudelli","submitted_at":"2019-02-11T15:33:41Z","abstract_excerpt":"The latest discovery of ferromagnetism in atomically thin films of semiconductors Cr$_2$Ge$_2$Te$_6$ and CrI$_3$ has unleashed numerous opportunities for fundamental physics of magnetism in two-dimensional (2D) limit and also for technological applications based on 2D magnetic materials. In this paper, we present a comprehensive theoretical study of the magnetic, electronic, optical and magneto-optical(MO) properties of multilayers [monolayer(ML), bilayer and trilayer] and bulk CrI$_3$, based on the density functional theory with the generalized gradient approximation plus on-site Coulomb repu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.03944","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":"2026-05-17T23:46:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9SBv4dfNvGuRQsKcV0yjj0emXtOBK0Yx7mTX7Zm8Kh8mfal0V5gtNKOUal50z8MtcEmo9RoLXw4i/jgK0TDQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:43:51.909743Z"},"content_sha256":"7aa946aa8de4b95f67228e70d1353298f493e893170d826908f37bbdf93ae315","schema_version":"1.0","event_id":"sha256:7aa946aa8de4b95f67228e70d1353298f493e893170d826908f37bbdf93ae315"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NYKH5DYXTLC2WCBW4R5ID3QERI/bundle.json","state_url":"https://pith.science/pith/NYKH5DYXTLC2WCBW4R5ID3QERI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NYKH5DYXTLC2WCBW4R5ID3QERI/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":"2026-06-01T14:43:51Z","links":{"resolver":"https://pith.science/pith/NYKH5DYXTLC2WCBW4R5ID3QERI","bundle":"https://pith.science/pith/NYKH5DYXTLC2WCBW4R5ID3QERI/bundle.json","state":"https://pith.science/pith/NYKH5DYXTLC2WCBW4R5ID3QERI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NYKH5DYXTLC2WCBW4R5ID3QERI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:NYKH5DYXTLC2WCBW4R5ID3QERI","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":"65583913bb5569e472133c4bc015b53be8b56f9036cec232907d6c5561da2bec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-11T15:33:41Z","title_canon_sha256":"2c413d2404510ee9abb45604c3e62ad424fc93eda981153d0b37181303549b87"},"schema_version":"1.0","source":{"id":"1902.03944","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.03944","created_at":"2026-05-17T23:46:45Z"},{"alias_kind":"arxiv_version","alias_value":"1902.03944v1","created_at":"2026-05-17T23:46:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.03944","created_at":"2026-05-17T23:46:45Z"},{"alias_kind":"pith_short_12","alias_value":"NYKH5DYXTLC2","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"NYKH5DYXTLC2WCBW","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"NYKH5DYX","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:7aa946aa8de4b95f67228e70d1353298f493e893170d826908f37bbdf93ae315","target":"graph","created_at":"2026-05-17T23:46:45Z","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":"The latest discovery of ferromagnetism in atomically thin films of semiconductors Cr$_2$Ge$_2$Te$_6$ and CrI$_3$ has unleashed numerous opportunities for fundamental physics of magnetism in two-dimensional (2D) limit and also for technological applications based on 2D magnetic materials. In this paper, we present a comprehensive theoretical study of the magnetic, electronic, optical and magneto-optical(MO) properties of multilayers [monolayer(ML), bilayer and trilayer] and bulk CrI$_3$, based on the density functional theory with the generalized gradient approximation plus on-site Coulomb repu","authors_text":"Guang-Yu Guo, Vijay Kumar Gudelli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-11T15:33:41Z","title":"Magnetism and Magneto-optical Effects in Bulk and Few-layer CrI$_3$: A Theoretical GGA + U Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.03944","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:dd3b1edbb5a122ac511a71123a9fda4b264b9b62e9c908b60fe7313e350e71d5","target":"record","created_at":"2026-05-17T23:46:45Z","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":"65583913bb5569e472133c4bc015b53be8b56f9036cec232907d6c5561da2bec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-11T15:33:41Z","title_canon_sha256":"2c413d2404510ee9abb45604c3e62ad424fc93eda981153d0b37181303549b87"},"schema_version":"1.0","source":{"id":"1902.03944","kind":"arxiv","version":1}},"canonical_sha256":"6e147e8f179ac5ab0836e47a81ee048a33c5b9c1686b6e00db254355079de075","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e147e8f179ac5ab0836e47a81ee048a33c5b9c1686b6e00db254355079de075","first_computed_at":"2026-05-17T23:46:45.731848Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:45.731848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z3MXgN5OyY0OdPXcDHUYSdw/qLNkeqfSDycl9C9tUnERRXRQMjmifT2Dz7uwGqP6pm4V+eJV+ld4g8ulsurrDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:45.732362Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.03944","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd3b1edbb5a122ac511a71123a9fda4b264b9b62e9c908b60fe7313e350e71d5","sha256:7aa946aa8de4b95f67228e70d1353298f493e893170d826908f37bbdf93ae315"],"state_sha256":"4385bd412e19db18d18027fce0983e1f03ddb818be7fa020aacd9299a1f83e1a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SwHOjtTXqrv6fVSD/A6PO1aNiYS8oxMc0SLm+nkCQw6d8ZdeMR4lD8mE8sHHMjl6+iL91AuWbHAnqFvQNZ4xDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T14:43:51.911694Z","bundle_sha256":"03a329a23bbc80779ef5c04eb8205be77b4cd423b8ff3bd517bd5479e3b99091"}}