{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XTNFKDGNS2ONPNDWQTD53CUJL6","short_pith_number":"pith:XTNFKDGN","canonical_record":{"source":{"id":"1809.00613","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-03T14:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"addfb0ff56720b16c0b74ad5dea402631a390e54599bc9e8dcf0d299a39e0518","abstract_canon_sha256":"0390218571c7156e9647a78cccc4b26dc803ab73f32a870cea156505f22d575a"},"schema_version":"1.0"},"canonical_sha256":"bcda550ccd969cd7b47684c7dd8a895f90d733f7027b239f681489876336db91","source":{"kind":"arxiv","id":"1809.00613","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00613","created_at":"2026-05-18T00:06:00Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00613v1","created_at":"2026-05-18T00:06:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00613","created_at":"2026-05-18T00:06:00Z"},{"alias_kind":"pith_short_12","alias_value":"XTNFKDGNS2ON","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTNFKDGNS2ONPNDW","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTNFKDGN","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XTNFKDGNS2ONPNDWQTD53CUJL6","target":"record","payload":{"canonical_record":{"source":{"id":"1809.00613","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-03T14:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"addfb0ff56720b16c0b74ad5dea402631a390e54599bc9e8dcf0d299a39e0518","abstract_canon_sha256":"0390218571c7156e9647a78cccc4b26dc803ab73f32a870cea156505f22d575a"},"schema_version":"1.0"},"canonical_sha256":"bcda550ccd969cd7b47684c7dd8a895f90d733f7027b239f681489876336db91","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:00.831117Z","signature_b64":"mHkuNn/CQlFsIaKA9mx3I+nHRoEMUsFa5bhHF0TkdQYqxXYTM7Vhbq9E17O37jS8xxt+eeUOe9CalsXm+HsAAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcda550ccd969cd7b47684c7dd8a895f90d733f7027b239f681489876336db91","last_reissued_at":"2026-05-18T00:06:00.830727Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:00.830727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.00613","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":"2026-05-18T00:06:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+W1C32qHpBQltCEzUTTr5PdFXRO4Kz6L1JbA/n1+SbxttrqauKEZgYC8Hrb4Jl8z9GE3JiLCUJwjl3+upPksAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T12:33:57.819990Z"},"content_sha256":"e9da36e0e56e9bfd90f97c9b94ae7b5f95c795324e5f5ef4ee215124fe6e54e1","schema_version":"1.0","event_id":"sha256:e9da36e0e56e9bfd90f97c9b94ae7b5f95c795324e5f5ef4ee215124fe6e54e1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XTNFKDGNS2ONPNDWQTD53CUJL6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generating high-order optical and spin harmonics from ferromagnetic monolayers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"G.P. Zhang, M. Murakami, M.S. Si, Thomas F. George, Y.H. Bai","submitted_at":"2018-09-03T14:20:48Z","abstract_excerpt":"High-order harmonic generation (HHG) in solids has entered a new phase of intensive research, with envisioned band-structure mapping on an ultrashort time scale. This partly benefits from a flurry of new HHG materials discovered, but so far has missed an important group. HHG in magnetic materials should have profound impact on future magnetic storage technology advances. Here we introduce and demonstrate HHG in ferromagnetic monolayers. We find that HHG carries spin information and sensitively depends on the relativistic spin-orbit coupling; and if they are dispersed into the crystal momentum "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00613","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":"2026-05-18T00:06:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Oe9CZ38OxZ3pKnbsS64LhFLZpqPncr5FhKau+h3VOraC9LhDeK6gB2+077B0GWG02qgaKHq2GsmHCuxpn3UuBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T12:33:57.820579Z"},"content_sha256":"64ef5a4c21a276be481e6433d9e49d911d10f696fa7009154f5135929b972f99","schema_version":"1.0","event_id":"sha256:64ef5a4c21a276be481e6433d9e49d911d10f696fa7009154f5135929b972f99"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XTNFKDGNS2ONPNDWQTD53CUJL6/bundle.json","state_url":"https://pith.science/pith/XTNFKDGNS2ONPNDWQTD53CUJL6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XTNFKDGNS2ONPNDWQTD53CUJL6/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":"2026-05-21T12:33:57Z","links":{"resolver":"https://pith.science/pith/XTNFKDGNS2ONPNDWQTD53CUJL6","bundle":"https://pith.science/pith/XTNFKDGNS2ONPNDWQTD53CUJL6/bundle.json","state":"https://pith.science/pith/XTNFKDGNS2ONPNDWQTD53CUJL6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XTNFKDGNS2ONPNDWQTD53CUJL6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XTNFKDGNS2ONPNDWQTD53CUJL6","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":"0390218571c7156e9647a78cccc4b26dc803ab73f32a870cea156505f22d575a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-03T14:20:48Z","title_canon_sha256":"addfb0ff56720b16c0b74ad5dea402631a390e54599bc9e8dcf0d299a39e0518"},"schema_version":"1.0","source":{"id":"1809.00613","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00613","created_at":"2026-05-18T00:06:00Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00613v1","created_at":"2026-05-18T00:06:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00613","created_at":"2026-05-18T00:06:00Z"},{"alias_kind":"pith_short_12","alias_value":"XTNFKDGNS2ON","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTNFKDGNS2ONPNDW","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTNFKDGN","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:64ef5a4c21a276be481e6433d9e49d911d10f696fa7009154f5135929b972f99","target":"graph","created_at":"2026-05-18T00:06:00Z","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":"High-order harmonic generation (HHG) in solids has entered a new phase of intensive research, with envisioned band-structure mapping on an ultrashort time scale. This partly benefits from a flurry of new HHG materials discovered, but so far has missed an important group. HHG in magnetic materials should have profound impact on future magnetic storage technology advances. Here we introduce and demonstrate HHG in ferromagnetic monolayers. We find that HHG carries spin information and sensitively depends on the relativistic spin-orbit coupling; and if they are dispersed into the crystal momentum ","authors_text":"G.P. Zhang, M. Murakami, M.S. Si, Thomas F. George, Y.H. Bai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-03T14:20:48Z","title":"Generating high-order optical and spin harmonics from ferromagnetic monolayers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00613","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:e9da36e0e56e9bfd90f97c9b94ae7b5f95c795324e5f5ef4ee215124fe6e54e1","target":"record","created_at":"2026-05-18T00:06:00Z","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":"0390218571c7156e9647a78cccc4b26dc803ab73f32a870cea156505f22d575a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-03T14:20:48Z","title_canon_sha256":"addfb0ff56720b16c0b74ad5dea402631a390e54599bc9e8dcf0d299a39e0518"},"schema_version":"1.0","source":{"id":"1809.00613","kind":"arxiv","version":1}},"canonical_sha256":"bcda550ccd969cd7b47684c7dd8a895f90d733f7027b239f681489876336db91","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bcda550ccd969cd7b47684c7dd8a895f90d733f7027b239f681489876336db91","first_computed_at":"2026-05-18T00:06:00.830727Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:00.830727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mHkuNn/CQlFsIaKA9mx3I+nHRoEMUsFa5bhHF0TkdQYqxXYTM7Vhbq9E17O37jS8xxt+eeUOe9CalsXm+HsAAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:00.831117Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00613","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9da36e0e56e9bfd90f97c9b94ae7b5f95c795324e5f5ef4ee215124fe6e54e1","sha256:64ef5a4c21a276be481e6433d9e49d911d10f696fa7009154f5135929b972f99"],"state_sha256":"000edcb1eb056ccc86c155045508bcf732d3b6ba361bbfcb0b3d4cec7898300f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tTakchEPkr/ZMQvjQIjEU1tSmMEyRU1AnoKfUX6iez3tNb8QSXu9D1Hln8WTIgyzX27l2NJrVg0w9LJ0sm3bAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T12:33:57.823467Z","bundle_sha256":"d432c64a347a62902093e46220fe9c7e57aec028489e7e4f54a99973bc807e8e"}}