{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RTU6JR3QEE24PMCMMV36X6OYB5","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":"f1b1a79bdaf6e841453de6b0e3194b0dd8f1e2d152b7d77fe3b7fb68552dd116","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:30:02Z","title_canon_sha256":"e14737dae0a3da4ff8b3757cda0f0b4ad67defdcc3db5a2670d55ec3faca2425"},"schema_version":"1.0","source":{"id":"1803.10825","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.10825","created_at":"2026-05-18T00:08:42Z"},{"alias_kind":"arxiv_version","alias_value":"1803.10825v1","created_at":"2026-05-18T00:08:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.10825","created_at":"2026-05-18T00:08:42Z"},{"alias_kind":"pith_short_12","alias_value":"RTU6JR3QEE24","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RTU6JR3QEE24PMCM","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RTU6JR3Q","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:97adb226c545327a82daebc3c1d47c0b5a66741e7ae2c4e978dd7d1f37c1bf95","target":"graph","created_at":"2026-05-18T00:08:42Z","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 Raman spectrum of CrI$_3$, a material that exhibits magnetism in a single-layer. We employ first-principles calculations within density functional theory to determine the effects of polarization, strain, and incident angle on the phonon spectra of the 3D bulk and the single-layer 2D structure, for both the high- and low-temperature crystal structures. Our results are in good agreement with existing experimental measurements and serve as a guide for additional investigations to elucidate the physics of this interesting material.","authors_text":"Daniel T. Larson, Efthimios Kaxiras","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:30:02Z","title":"Raman Spectrum of CrI$_3$: an ab-initio study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.10825","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":"sha256:4565f9709774cb61ba21d17da9a6ccfe7fd006099a7acaa4d643db4bc1133d6a","target":"record","created_at":"2026-05-18T00:08:42Z","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":"f1b1a79bdaf6e841453de6b0e3194b0dd8f1e2d152b7d77fe3b7fb68552dd116","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:30:02Z","title_canon_sha256":"e14737dae0a3da4ff8b3757cda0f0b4ad67defdcc3db5a2670d55ec3faca2425"},"schema_version":"1.0","source":{"id":"1803.10825","kind":"arxiv","version":1}},"canonical_sha256":"8ce9e4c7702135c7b04c6577ebf9d80f6ec06d26d805e01e9475eefd2853b727","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8ce9e4c7702135c7b04c6577ebf9d80f6ec06d26d805e01e9475eefd2853b727","first_computed_at":"2026-05-18T00:08:42.782203Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:42.782203Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bDe8yhM2wlfaU8uYyZ3Y6mBPgxvw9PI7knpTQYdIqQvUPFWaWswkioBo8MpgiEl+RisogrQtmLz+U0NkVa19DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:42.782931Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.10825","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4565f9709774cb61ba21d17da9a6ccfe7fd006099a7acaa4d643db4bc1133d6a","sha256:97adb226c545327a82daebc3c1d47c0b5a66741e7ae2c4e978dd7d1f37c1bf95"],"state_sha256":"7e835d833a81cf9a39e4635e97f5591a4af790bf0535c2c412ef7c698aab345c"}