{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:PTMTL7AA6LR4N357J3IWBFSF6C","short_pith_number":"pith:PTMTL7AA","canonical_record":{"source":{"id":"2101.02961","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-08T11:03:52Z","cross_cats_sorted":["physics.atom-ph","physics.optics","quant-ph"],"title_canon_sha256":"cf9bb0f3939ff7e3d9280e6dc0499be58531bbc91739fb7479c52c7ff21bca9c","abstract_canon_sha256":"74a2f2e49e4a98ede2b88eac23604656abee0c7328e60fb4ae28bb523c2e758b"},"schema_version":"1.0"},"canonical_sha256":"7cd935fc00f2e3c6efbf4ed1609645f08ff3fd580e9325a08a97528bf7240d18","source":{"kind":"arxiv","id":"2101.02961","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.02961","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"arxiv_version","alias_value":"2101.02961v2","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.02961","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"pith_short_12","alias_value":"PTMTL7AA6LR4","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"pith_short_16","alias_value":"PTMTL7AA6LR4N357","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"pith_short_8","alias_value":"PTMTL7AA","created_at":"2026-07-05T07:54:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:PTMTL7AA6LR4N357J3IWBFSF6C","target":"record","payload":{"canonical_record":{"source":{"id":"2101.02961","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-08T11:03:52Z","cross_cats_sorted":["physics.atom-ph","physics.optics","quant-ph"],"title_canon_sha256":"cf9bb0f3939ff7e3d9280e6dc0499be58531bbc91739fb7479c52c7ff21bca9c","abstract_canon_sha256":"74a2f2e49e4a98ede2b88eac23604656abee0c7328e60fb4ae28bb523c2e758b"},"schema_version":"1.0"},"canonical_sha256":"7cd935fc00f2e3c6efbf4ed1609645f08ff3fd580e9325a08a97528bf7240d18","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:54:28.328980Z","signature_b64":"CyH28D3TxRv6ShFdrfQKb6tBlQbQCrPejWBfRiOPz4E24+9lNjM5K6IwDUi1alQiNvK3RFtTMy4f9e1339J7CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cd935fc00f2e3c6efbf4ed1609645f08ff3fd580e9325a08a97528bf7240d18","last_reissued_at":"2026-07-05T07:54:28.328454Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:54:28.328454Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.02961","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:54:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZMt1iZmmFeEq7KNCleyXeZYk+oJTZTlLgW9TP8QA3AMLJOdsmMjrPXrkyC8HF9T4WmCjiV2huHjPkkQS5q4kCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T15:15:00.787757Z"},"content_sha256":"477520e2836c922990e718239b010e96b997e47b75bade5680dad6a09c502ba8","schema_version":"1.0","event_id":"sha256:477520e2836c922990e718239b010e96b997e47b75bade5680dad6a09c502ba8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:PTMTL7AA6LR4N357J3IWBFSF6C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-order harmonic generation in hexagonal nanoribbons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph","physics.optics","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Dieter Bauer, Hannah J\\\"ur{\\ss}","submitted_at":"2021-01-08T11:03:52Z","abstract_excerpt":"The generation of high-order harmonics in finite, hexagonal nanoribbons is simulated. Ribbons with armchair and zig-zag edges are investigated by using a tight-binding approach with only nearest neighbor hopping. By turning an alternating on-site potential off or on, the system describes for example graphene or hexagonal boron nitride, respectively. The incoming laser pulse is linearly polarized along the ribbons. The emitted light has a polarization component parallel to the polarization of the incoming field. The presence or absence of a polarization component perpendicular to the polarizati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.02961","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2101.02961/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T07:54:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tEyhn/OdlVUOJEzOBulR7sxuYgIsjHOk1s7rv1Wma3fFZPkqrfi/Cmyl9oiAcLbdUaX8wKLzf30CB1UFnh3BCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T15:15:00.788294Z"},"content_sha256":"b42c556f67740850a6182d68d20090ee6967a8c3a8cb9e9be663ff69d5cb8f58","schema_version":"1.0","event_id":"sha256:b42c556f67740850a6182d68d20090ee6967a8c3a8cb9e9be663ff69d5cb8f58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PTMTL7AA6LR4N357J3IWBFSF6C/bundle.json","state_url":"https://pith.science/pith/PTMTL7AA6LR4N357J3IWBFSF6C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PTMTL7AA6LR4N357J3IWBFSF6C/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":"2026-08-10T15:15:00Z","links":{"resolver":"https://pith.science/pith/PTMTL7AA6LR4N357J3IWBFSF6C","bundle":"https://pith.science/pith/PTMTL7AA6LR4N357J3IWBFSF6C/bundle.json","state":"https://pith.science/pith/PTMTL7AA6LR4N357J3IWBFSF6C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PTMTL7AA6LR4N357J3IWBFSF6C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PTMTL7AA6LR4N357J3IWBFSF6C","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":"74a2f2e49e4a98ede2b88eac23604656abee0c7328e60fb4ae28bb523c2e758b","cross_cats_sorted":["physics.atom-ph","physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-08T11:03:52Z","title_canon_sha256":"cf9bb0f3939ff7e3d9280e6dc0499be58531bbc91739fb7479c52c7ff21bca9c"},"schema_version":"1.0","source":{"id":"2101.02961","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.02961","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"arxiv_version","alias_value":"2101.02961v2","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.02961","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"pith_short_12","alias_value":"PTMTL7AA6LR4","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"pith_short_16","alias_value":"PTMTL7AA6LR4N357","created_at":"2026-07-05T07:54:28Z"},{"alias_kind":"pith_short_8","alias_value":"PTMTL7AA","created_at":"2026-07-05T07:54:28Z"}],"graph_snapshots":[{"event_id":"sha256:b42c556f67740850a6182d68d20090ee6967a8c3a8cb9e9be663ff69d5cb8f58","target":"graph","created_at":"2026-07-05T07:54:28Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2101.02961/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The generation of high-order harmonics in finite, hexagonal nanoribbons is simulated. Ribbons with armchair and zig-zag edges are investigated by using a tight-binding approach with only nearest neighbor hopping. By turning an alternating on-site potential off or on, the system describes for example graphene or hexagonal boron nitride, respectively. The incoming laser pulse is linearly polarized along the ribbons. The emitted light has a polarization component parallel to the polarization of the incoming field. The presence or absence of a polarization component perpendicular to the polarizati","authors_text":"Dieter Bauer, Hannah J\\\"ur{\\ss}","cross_cats":["physics.atom-ph","physics.optics","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-08T11:03:52Z","title":"High-order harmonic generation in hexagonal nanoribbons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.02961","kind":"arxiv","version":2},"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":"sha256:477520e2836c922990e718239b010e96b997e47b75bade5680dad6a09c502ba8","target":"record","created_at":"2026-07-05T07:54:28Z","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":"74a2f2e49e4a98ede2b88eac23604656abee0c7328e60fb4ae28bb523c2e758b","cross_cats_sorted":["physics.atom-ph","physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-08T11:03:52Z","title_canon_sha256":"cf9bb0f3939ff7e3d9280e6dc0499be58531bbc91739fb7479c52c7ff21bca9c"},"schema_version":"1.0","source":{"id":"2101.02961","kind":"arxiv","version":2}},"canonical_sha256":"7cd935fc00f2e3c6efbf4ed1609645f08ff3fd580e9325a08a97528bf7240d18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7cd935fc00f2e3c6efbf4ed1609645f08ff3fd580e9325a08a97528bf7240d18","first_computed_at":"2026-07-05T07:54:28.328454Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:54:28.328454Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CyH28D3TxRv6ShFdrfQKb6tBlQbQCrPejWBfRiOPz4E24+9lNjM5K6IwDUi1alQiNvK3RFtTMy4f9e1339J7CA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:54:28.328980Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.02961","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:477520e2836c922990e718239b010e96b997e47b75bade5680dad6a09c502ba8","sha256:b42c556f67740850a6182d68d20090ee6967a8c3a8cb9e9be663ff69d5cb8f58"],"state_sha256":"238b6654804b76a08486195c537e8f534a34a52e37d01bf60a3b0d94a7f1d604"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UvSyS8uSULX/QAg1Fk3iEPP12i0WM0RL1Bt2W9h3yej03wE0TOqm6M0hr/g55MGlVXZjvINX6Et3LGdGLDAfDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T15:15:00.793008Z","bundle_sha256":"a3dfef3a68bff98551ec772c39e56582d266fdf55bfac508c384621e54085b39"}}