{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:YEV46QPZPYUI66ZHNBWUBXCLG5","short_pith_number":"pith:YEV46QPZ","canonical_record":{"source":{"id":"1710.05550","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-16T08:01:26Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"cacda87ac2e6698f359dd2d7d75edbff0b0519120502095e56949e9b9792d7f6","abstract_canon_sha256":"d8882165502c700d816f791ec32634a294df6e05ef184edc2cfe4c5f0cae37cf"},"schema_version":"1.0"},"canonical_sha256":"c12bcf41f97e288f7b27686d40dc4b3746057ec0a8d3c86508d32b7ca7339a41","source":{"kind":"arxiv","id":"1710.05550","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05550","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05550v1","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05550","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"YEV46QPZPYUI","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YEV46QPZPYUI66ZH","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YEV46QPZ","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:YEV46QPZPYUI66ZHNBWUBXCLG5","target":"record","payload":{"canonical_record":{"source":{"id":"1710.05550","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-16T08:01:26Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"cacda87ac2e6698f359dd2d7d75edbff0b0519120502095e56949e9b9792d7f6","abstract_canon_sha256":"d8882165502c700d816f791ec32634a294df6e05ef184edc2cfe4c5f0cae37cf"},"schema_version":"1.0"},"canonical_sha256":"c12bcf41f97e288f7b27686d40dc4b3746057ec0a8d3c86508d32b7ca7339a41","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:26.188027Z","signature_b64":"JCRHs6bD5RpLOzAEtBLjbj4e4RXdsBnWOOw7Ip6cQy2cfA9XzMaJicw0s8kw5NQTabU1PdXyxQFvDjTHZzTcBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c12bcf41f97e288f7b27686d40dc4b3746057ec0a8d3c86508d32b7ca7339a41","last_reissued_at":"2026-05-18T00:19:26.187400Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:26.187400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.05550","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":"2026-05-18T00:19:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XcK4ql4YScsQto7Dh2F93i60V4HJJ9Qpk22qR53wIgZhRt+lbCt4BruR8e03QW75HSoiqRw777rYS3EXUcQIBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:11:36.513646Z"},"content_sha256":"bb430b6c09aff488dfe1fd5b9756349cfcda98e9e282f26f85fb5eabde6103bd","schema_version":"1.0","event_id":"sha256:bb430b6c09aff488dfe1fd5b9756349cfcda98e9e282f26f85fb5eabde6103bd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:YEV46QPZPYUI66ZHNBWUBXCLG5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ligand-field helical luminescence in a 2D ferromagnetic insulator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Bevin Huang, Dahlia R. Klein, David H. Cobden, Ding Zhong, Di Xiao, Efren Navarro-Moratalla, Kyle L. Seyler, Li Yang, Michael A. McGuire, Pablo Jarillo-Herrero, Shiyuan Gao, Wang Yao, Xiaodong Xu, Xiaoou Zhang","submitted_at":"2017-10-16T08:01:26Z","abstract_excerpt":"Bulk chromium triiodide (CrI$_3$) has long been known as a layered van der Waals ferromagnet. However, its monolayer form was only recently isolated and confirmed to be a truly two-dimensional (2D) ferromagnet, providing a new platform for investigating light-matter interactions and magneto-optical phenomena in the atomically thin limit. Here, we report spontaneous circularly polarized photoluminescence in monolayer CrI$_3$ under linearly polarized excitation, with helicity determined by the monolayer magnetization direction. In contrast, the bilayer CrI$_3$ photoluminescence exhibits vanishin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05550","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":"2026-05-18T00:19:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gbarP9iIx9ZwUhOzwva62QYvUZH4bThti41s6j3VxUXSjBf1NbfVYj2AL9IMc0m4YkUNXneSyMa4O9HFLfwEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:11:36.513991Z"},"content_sha256":"6f861a82f3bad0f6644e9eb38d6794c2c78056f65ad221827f1677d0569e7a70","schema_version":"1.0","event_id":"sha256:6f861a82f3bad0f6644e9eb38d6794c2c78056f65ad221827f1677d0569e7a70"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YEV46QPZPYUI66ZHNBWUBXCLG5/bundle.json","state_url":"https://pith.science/pith/YEV46QPZPYUI66ZHNBWUBXCLG5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YEV46QPZPYUI66ZHNBWUBXCLG5/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":"2026-06-03T08:11:36Z","links":{"resolver":"https://pith.science/pith/YEV46QPZPYUI66ZHNBWUBXCLG5","bundle":"https://pith.science/pith/YEV46QPZPYUI66ZHNBWUBXCLG5/bundle.json","state":"https://pith.science/pith/YEV46QPZPYUI66ZHNBWUBXCLG5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YEV46QPZPYUI66ZHNBWUBXCLG5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YEV46QPZPYUI66ZHNBWUBXCLG5","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":"d8882165502c700d816f791ec32634a294df6e05ef184edc2cfe4c5f0cae37cf","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-16T08:01:26Z","title_canon_sha256":"cacda87ac2e6698f359dd2d7d75edbff0b0519120502095e56949e9b9792d7f6"},"schema_version":"1.0","source":{"id":"1710.05550","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05550","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05550v1","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05550","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"YEV46QPZPYUI","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YEV46QPZPYUI66ZH","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YEV46QPZ","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:6f861a82f3bad0f6644e9eb38d6794c2c78056f65ad221827f1677d0569e7a70","target":"graph","created_at":"2026-05-18T00:19:26Z","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":"Bulk chromium triiodide (CrI$_3$) has long been known as a layered van der Waals ferromagnet. However, its monolayer form was only recently isolated and confirmed to be a truly two-dimensional (2D) ferromagnet, providing a new platform for investigating light-matter interactions and magneto-optical phenomena in the atomically thin limit. Here, we report spontaneous circularly polarized photoluminescence in monolayer CrI$_3$ under linearly polarized excitation, with helicity determined by the monolayer magnetization direction. In contrast, the bilayer CrI$_3$ photoluminescence exhibits vanishin","authors_text":"Bevin Huang, Dahlia R. Klein, David H. Cobden, Ding Zhong, Di Xiao, Efren Navarro-Moratalla, Kyle L. Seyler, Li Yang, Michael A. McGuire, Pablo Jarillo-Herrero, Shiyuan Gao, Wang Yao, Xiaodong Xu, Xiaoou Zhang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-16T08:01:26Z","title":"Ligand-field helical luminescence in a 2D ferromagnetic insulator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05550","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:bb430b6c09aff488dfe1fd5b9756349cfcda98e9e282f26f85fb5eabde6103bd","target":"record","created_at":"2026-05-18T00:19:26Z","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":"d8882165502c700d816f791ec32634a294df6e05ef184edc2cfe4c5f0cae37cf","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-16T08:01:26Z","title_canon_sha256":"cacda87ac2e6698f359dd2d7d75edbff0b0519120502095e56949e9b9792d7f6"},"schema_version":"1.0","source":{"id":"1710.05550","kind":"arxiv","version":1}},"canonical_sha256":"c12bcf41f97e288f7b27686d40dc4b3746057ec0a8d3c86508d32b7ca7339a41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c12bcf41f97e288f7b27686d40dc4b3746057ec0a8d3c86508d32b7ca7339a41","first_computed_at":"2026-05-18T00:19:26.187400Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:26.187400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JCRHs6bD5RpLOzAEtBLjbj4e4RXdsBnWOOw7Ip6cQy2cfA9XzMaJicw0s8kw5NQTabU1PdXyxQFvDjTHZzTcBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:26.188027Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.05550","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb430b6c09aff488dfe1fd5b9756349cfcda98e9e282f26f85fb5eabde6103bd","sha256:6f861a82f3bad0f6644e9eb38d6794c2c78056f65ad221827f1677d0569e7a70"],"state_sha256":"0319a7f70c56fe3df8177748243bd7fc2493e1cdf6a31ef1afdf79428caa4042"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XV3+AjyAH6VA5wTGsQvbi/+zpIckutTYPfiW4Ph/g/euPBybE4VoUaSc0mPLKxq+x46ZT8pyf8Cn74m06llpBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T08:11:36.515965Z","bundle_sha256":"4f3f1d256923a9e1838e0c23fd806f82661e9af413b106123371df1ea1439cdc"}}