{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:W7MTOVDUZGAAPO6IFJIHXY4W4Q","short_pith_number":"pith:W7MTOVDU","canonical_record":{"source":{"id":"1810.00822","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-01T17:06:51Z","cross_cats_sorted":[],"title_canon_sha256":"7888c106b0365eec69b8643f59ae53ccc604e8e306e4b85d6e30e338ae4317df","abstract_canon_sha256":"2df7ef3ca225ef7b40f534ede38183071cf03b325a3fb0ed568754525345acd4"},"schema_version":"1.0"},"canonical_sha256":"b7d9375474c98007bbc82a507be396e424ab413760e34622db2851efb0ef9400","source":{"kind":"arxiv","id":"1810.00822","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.00822","created_at":"2026-05-18T00:04:24Z"},{"alias_kind":"arxiv_version","alias_value":"1810.00822v1","created_at":"2026-05-18T00:04:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.00822","created_at":"2026-05-18T00:04:24Z"},{"alias_kind":"pith_short_12","alias_value":"W7MTOVDUZGAA","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"W7MTOVDUZGAAPO6I","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"W7MTOVDU","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:W7MTOVDUZGAAPO6IFJIHXY4W4Q","target":"record","payload":{"canonical_record":{"source":{"id":"1810.00822","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-01T17:06:51Z","cross_cats_sorted":[],"title_canon_sha256":"7888c106b0365eec69b8643f59ae53ccc604e8e306e4b85d6e30e338ae4317df","abstract_canon_sha256":"2df7ef3ca225ef7b40f534ede38183071cf03b325a3fb0ed568754525345acd4"},"schema_version":"1.0"},"canonical_sha256":"b7d9375474c98007bbc82a507be396e424ab413760e34622db2851efb0ef9400","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:24.750904Z","signature_b64":"3qkUrnzd0wSUutn4HRo7K5g/J1+w+4/XiublZp8s2WJB1N4byq/jwpagArJPzNsET2wXoAL9XDQaaiiHKGE9Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7d9375474c98007bbc82a507be396e424ab413760e34622db2851efb0ef9400","last_reissued_at":"2026-05-18T00:04:24.750416Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:24.750416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.00822","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":"2026-05-18T00:04:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E0QdODn0StjKPY48sOLRMT2e0vSfgeBehXEGVw1ilOKDQyWeszvo+a6PWHaTRqOYUaqMNoUuDjwEfFACttNwBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T21:46:00.444170Z"},"content_sha256":"76fdd0b7705f6aaef74ff5baaac9426a9dadf7df849521fa9f56f4c6950966eb","schema_version":"1.0","event_id":"sha256:76fdd0b7705f6aaef74ff5baaac9426a9dadf7df849521fa9f56f4c6950966eb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:W7MTOVDUZGAAPO6IFJIHXY4W4Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear Electrodynamics and Optics of Graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"N. A. Savostianova, S. A. Mikhailov","submitted_at":"2018-10-01T17:06:51Z","abstract_excerpt":"Graphene is a two-dimensional material with strongly nonlinear electrodynamics and optical properties. We present some of our recent theoretical results on the quantum and non-perturbative quasi-classical theories of nonlinear effects in graphene, influence of substrates on graphene nonlinearities, plasma oscillations in graphene in the nonlinear regime and other effects."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.00822","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":"2026-05-18T00:04:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CZZ4Wh9Xi6C+88hXWrPRjdU4Ak57d9nA/33rR4/dqVhmXRV5QXKLUg6jrJ06lCD5TLaNOVw3YIBGJWgh3crrDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T21:46:00.444588Z"},"content_sha256":"ecc4a286ed3e00c818fe6de427fa21e232cbe544cf09efcec990bf16ce045771","schema_version":"1.0","event_id":"sha256:ecc4a286ed3e00c818fe6de427fa21e232cbe544cf09efcec990bf16ce045771"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W7MTOVDUZGAAPO6IFJIHXY4W4Q/bundle.json","state_url":"https://pith.science/pith/W7MTOVDUZGAAPO6IFJIHXY4W4Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W7MTOVDUZGAAPO6IFJIHXY4W4Q/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":"2026-06-04T21:46:00Z","links":{"resolver":"https://pith.science/pith/W7MTOVDUZGAAPO6IFJIHXY4W4Q","bundle":"https://pith.science/pith/W7MTOVDUZGAAPO6IFJIHXY4W4Q/bundle.json","state":"https://pith.science/pith/W7MTOVDUZGAAPO6IFJIHXY4W4Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W7MTOVDUZGAAPO6IFJIHXY4W4Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:W7MTOVDUZGAAPO6IFJIHXY4W4Q","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":"2df7ef3ca225ef7b40f534ede38183071cf03b325a3fb0ed568754525345acd4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-01T17:06:51Z","title_canon_sha256":"7888c106b0365eec69b8643f59ae53ccc604e8e306e4b85d6e30e338ae4317df"},"schema_version":"1.0","source":{"id":"1810.00822","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.00822","created_at":"2026-05-18T00:04:24Z"},{"alias_kind":"arxiv_version","alias_value":"1810.00822v1","created_at":"2026-05-18T00:04:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.00822","created_at":"2026-05-18T00:04:24Z"},{"alias_kind":"pith_short_12","alias_value":"W7MTOVDUZGAA","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"W7MTOVDUZGAAPO6I","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"W7MTOVDU","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:ecc4a286ed3e00c818fe6de427fa21e232cbe544cf09efcec990bf16ce045771","target":"graph","created_at":"2026-05-18T00:04:24Z","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":"Graphene is a two-dimensional material with strongly nonlinear electrodynamics and optical properties. We present some of our recent theoretical results on the quantum and non-perturbative quasi-classical theories of nonlinear effects in graphene, influence of substrates on graphene nonlinearities, plasma oscillations in graphene in the nonlinear regime and other effects.","authors_text":"N. A. Savostianova, S. A. Mikhailov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-01T17:06:51Z","title":"Nonlinear Electrodynamics and Optics of Graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.00822","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":"sha256:76fdd0b7705f6aaef74ff5baaac9426a9dadf7df849521fa9f56f4c6950966eb","target":"record","created_at":"2026-05-18T00:04:24Z","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":"2df7ef3ca225ef7b40f534ede38183071cf03b325a3fb0ed568754525345acd4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-01T17:06:51Z","title_canon_sha256":"7888c106b0365eec69b8643f59ae53ccc604e8e306e4b85d6e30e338ae4317df"},"schema_version":"1.0","source":{"id":"1810.00822","kind":"arxiv","version":1}},"canonical_sha256":"b7d9375474c98007bbc82a507be396e424ab413760e34622db2851efb0ef9400","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7d9375474c98007bbc82a507be396e424ab413760e34622db2851efb0ef9400","first_computed_at":"2026-05-18T00:04:24.750416Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:24.750416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3qkUrnzd0wSUutn4HRo7K5g/J1+w+4/XiublZp8s2WJB1N4byq/jwpagArJPzNsET2wXoAL9XDQaaiiHKGE9Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:24.750904Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.00822","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76fdd0b7705f6aaef74ff5baaac9426a9dadf7df849521fa9f56f4c6950966eb","sha256:ecc4a286ed3e00c818fe6de427fa21e232cbe544cf09efcec990bf16ce045771"],"state_sha256":"f213da1ea7e34bdb83a7eeb3eecb242b5e8740f4aa34a4c508ee55795a0f0d0f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q5jVD0tXLZKlsv2Htdg47PwteunhchjHV2GTXvmExfQg5ctWPjn+8NS5NQACiqq0jrOneSxzkgdJnW++VXXnDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T21:46:00.447093Z","bundle_sha256":"ca6d0666eaef5cde67b1bcab6bb4ae219a549bff0de91d44c74fdc1cb3b23615"}}