{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:T2OXVMPRNMMO7JUVZSPQR2Q4SA","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":"224b7b13e5734c32e42dbae67407f033a8be43a26e27ecf54ea6766479dc3022","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-07-29T12:49:47Z","title_canon_sha256":"485fa9916b8859308923ee83cac9ba65f44b07fcc8755d37cd42878029eae5f9"},"schema_version":"1.0","source":{"id":"1707.09507","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.09507","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"arxiv_version","alias_value":"1707.09507v3","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.09507","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"pith_short_12","alias_value":"T2OXVMPRNMMO","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"T2OXVMPRNMMO7JUV","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"T2OXVMPR","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:2ea0047014532e12939428d8ca59127f4033175473858800c0b3fa282dba91af","target":"graph","created_at":"2026-05-18T00:27:46Z","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":"Using an enhanced optically heterodyned optical Kerr effect method and a theoretical description of the interactions between an optical beam, a single layer of graphene, and its substrate, we provide experimental answers to questions raised by theoretical models of graphene third-order nonlinear optical response. In particular, we measure separately the time response of the two main tensor components of the nonlinear susceptibility, we validate the assumption that the out-of plane tensor components are small, and we quantify the optical impact of the substrate on the measured coefficients. Our","authors_text":"Evdokia Dremetsika, Pascal Kockaert","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-07-29T12:49:47Z","title":"Enhanced optical Kerr effect method for a detailed characterization of the third order nonlinearity of 2D materials applied to graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.09507","kind":"arxiv","version":3},"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":"sha256:7db1d121ec7db4cdf6bf25aa930f00933f8e6f6fac490a59ac16a86a6e25c1aa","target":"record","created_at":"2026-05-18T00:27:46Z","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":"224b7b13e5734c32e42dbae67407f033a8be43a26e27ecf54ea6766479dc3022","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-07-29T12:49:47Z","title_canon_sha256":"485fa9916b8859308923ee83cac9ba65f44b07fcc8755d37cd42878029eae5f9"},"schema_version":"1.0","source":{"id":"1707.09507","kind":"arxiv","version":3}},"canonical_sha256":"9e9d7ab1f16b18efa695cc9f08ea1c902ede4deddedec6a2d363e27e12a05729","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e9d7ab1f16b18efa695cc9f08ea1c902ede4deddedec6a2d363e27e12a05729","first_computed_at":"2026-05-18T00:27:46.124417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:46.124417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a9eh6jpX6kbtf6mQOJCDqy3KtfhyQBb1VYs+dLkUaqB8zoLC23H3Mbtzh8r/LkpDp3pMpc9or7zEldrfYZk6Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:46.124875Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.09507","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7db1d121ec7db4cdf6bf25aa930f00933f8e6f6fac490a59ac16a86a6e25c1aa","sha256:2ea0047014532e12939428d8ca59127f4033175473858800c0b3fa282dba91af"],"state_sha256":"abf0a43d8285263e0012f03c09e9d143601b02780b40b1873d772580c9cc26a8"}