{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YAWROSN5IFRG7KDITVGRINTXEY","short_pith_number":"pith:YAWROSN5","canonical_record":{"source":{"id":"1805.10773","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-05-28T05:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"bc36a46e280855a836d5ef7f89fc32647d992d18d6815920ec94142983395993","abstract_canon_sha256":"938c522ff1e9360201921edde3acb5a6add5716b440e063f89e924545827c929"},"schema_version":"1.0"},"canonical_sha256":"c02d1749bd41626fa8689d4d143677262e9f5d91ea783ed3596d63b0993b8c10","source":{"kind":"arxiv","id":"1805.10773","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.10773","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1805.10773v4","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.10773","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"YAWROSN5IFRG","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YAWROSN5IFRG7KDI","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YAWROSN5","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YAWROSN5IFRG7KDITVGRINTXEY","target":"record","payload":{"canonical_record":{"source":{"id":"1805.10773","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-05-28T05:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"bc36a46e280855a836d5ef7f89fc32647d992d18d6815920ec94142983395993","abstract_canon_sha256":"938c522ff1e9360201921edde3acb5a6add5716b440e063f89e924545827c929"},"schema_version":"1.0"},"canonical_sha256":"c02d1749bd41626fa8689d4d143677262e9f5d91ea783ed3596d63b0993b8c10","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:06.576507Z","signature_b64":"G+wz1mKSO0+gou0m1yzsOV0t6ESXGbbkhlHiPf7K4XCj8iG3e2zYme6eA05YoZl0WzxYfZHCyzv0SKOsvz0GBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c02d1749bd41626fa8689d4d143677262e9f5d91ea783ed3596d63b0993b8c10","last_reissued_at":"2026-05-17T23:53:06.575873Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:06.575873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.10773","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q9m1Kpp5AtIARyPgzXdIHy82JIuXgOO2jeJN1/02bcb9lOw0rY1XD51EJQA/nDvLUeYxiTVMyfrk/tSieveKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:39:22.066566Z"},"content_sha256":"d561c5650759b64fbb577252a499a223ca0545f144033531524235e6097a7b95","schema_version":"1.0","event_id":"sha256:d561c5650759b64fbb577252a499a223ca0545f144033531524235e6097a7b95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YAWROSN5IFRG7KDITVGRINTXEY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strain-controlled high harmonic generation with Dirac fermions in silicene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Rui Qin, Zi-Yu Chen","submitted_at":"2018-05-28T05:18:08Z","abstract_excerpt":"Two-dimensional (2D) materials with zero band gap exhibit remarkable electronic properties with wide tunability. High harmonic generation (HHG) in such materials offers unique platforms to develop novel optoelectronic devices at nanoscale, as well as to investigate strong-field and ultrafast nonlinear behaviour of massless Dirac fermions. However, control of HHG by modulating electronic structure of materials remains largerly unexplored to date. Here we report controllable HHG by tuning the electronic structures via mechanical engineering. Using an \\textit{ab initio} approach based on time-dep"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.10773","kind":"arxiv","version":4},"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":"2026-05-17T23:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Oo4DEOPgergfOVK5cBHGcNfR98XGwmqTw6yxgAe0NmZCoACW7A0sHy6q/0ZfA2xoW0SQOEi/zVbCttB19s29BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:39:22.067257Z"},"content_sha256":"149a08cf0898d3b81ce5cd9ac99f0ce28bc8ad31693400212dedc5e7ac0d268f","schema_version":"1.0","event_id":"sha256:149a08cf0898d3b81ce5cd9ac99f0ce28bc8ad31693400212dedc5e7ac0d268f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YAWROSN5IFRG7KDITVGRINTXEY/bundle.json","state_url":"https://pith.science/pith/YAWROSN5IFRG7KDITVGRINTXEY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YAWROSN5IFRG7KDITVGRINTXEY/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":"2026-05-25T18:39:22Z","links":{"resolver":"https://pith.science/pith/YAWROSN5IFRG7KDITVGRINTXEY","bundle":"https://pith.science/pith/YAWROSN5IFRG7KDITVGRINTXEY/bundle.json","state":"https://pith.science/pith/YAWROSN5IFRG7KDITVGRINTXEY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YAWROSN5IFRG7KDITVGRINTXEY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YAWROSN5IFRG7KDITVGRINTXEY","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":"938c522ff1e9360201921edde3acb5a6add5716b440e063f89e924545827c929","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-05-28T05:18:08Z","title_canon_sha256":"bc36a46e280855a836d5ef7f89fc32647d992d18d6815920ec94142983395993"},"schema_version":"1.0","source":{"id":"1805.10773","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.10773","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1805.10773v4","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.10773","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"YAWROSN5IFRG","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YAWROSN5IFRG7KDI","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YAWROSN5","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:149a08cf0898d3b81ce5cd9ac99f0ce28bc8ad31693400212dedc5e7ac0d268f","target":"graph","created_at":"2026-05-17T23:53:06Z","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":"Two-dimensional (2D) materials with zero band gap exhibit remarkable electronic properties with wide tunability. High harmonic generation (HHG) in such materials offers unique platforms to develop novel optoelectronic devices at nanoscale, as well as to investigate strong-field and ultrafast nonlinear behaviour of massless Dirac fermions. However, control of HHG by modulating electronic structure of materials remains largerly unexplored to date. Here we report controllable HHG by tuning the electronic structures via mechanical engineering. Using an \\textit{ab initio} approach based on time-dep","authors_text":"Rui Qin, Zi-Yu Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-05-28T05:18:08Z","title":"Strain-controlled high harmonic generation with Dirac fermions in silicene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.10773","kind":"arxiv","version":4},"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:d561c5650759b64fbb577252a499a223ca0545f144033531524235e6097a7b95","target":"record","created_at":"2026-05-17T23:53:06Z","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":"938c522ff1e9360201921edde3acb5a6add5716b440e063f89e924545827c929","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-05-28T05:18:08Z","title_canon_sha256":"bc36a46e280855a836d5ef7f89fc32647d992d18d6815920ec94142983395993"},"schema_version":"1.0","source":{"id":"1805.10773","kind":"arxiv","version":4}},"canonical_sha256":"c02d1749bd41626fa8689d4d143677262e9f5d91ea783ed3596d63b0993b8c10","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c02d1749bd41626fa8689d4d143677262e9f5d91ea783ed3596d63b0993b8c10","first_computed_at":"2026-05-17T23:53:06.575873Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:06.575873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G+wz1mKSO0+gou0m1yzsOV0t6ESXGbbkhlHiPf7K4XCj8iG3e2zYme6eA05YoZl0WzxYfZHCyzv0SKOsvz0GBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:06.576507Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.10773","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d561c5650759b64fbb577252a499a223ca0545f144033531524235e6097a7b95","sha256:149a08cf0898d3b81ce5cd9ac99f0ce28bc8ad31693400212dedc5e7ac0d268f"],"state_sha256":"83abb3bd4ba7ed2da687a625e8b9e6a6fe60588d1284ce310267d330e0ddb9f2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gX28QtIHiNm1LiqwItOLi08ESaESzIqMXKkRwGZnGUxJ8bTNUqBvwwkcRXQutlylET3kq4u1FMuMr8F9IlwFCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:39:22.070543Z","bundle_sha256":"ba49d097d823ae2aa898fe44025ae15e52b8eba1d1592fa95e8224e6b14f6b87"}}