{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:6V3FOSGKSFKGJJU5BAUMQUJMBV","short_pith_number":"pith:6V3FOSGK","canonical_record":{"source":{"id":"2508.15631","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-08-21T14:55:46Z","cross_cats_sorted":[],"title_canon_sha256":"7db20c109706be37cc2da97ea8f87df68a6b658ba90414d7a908dc604bfcb48b","abstract_canon_sha256":"fa7ed29d28f6870e89b467677be2e353b4834f0b3d8d86127cd641e48921705e"},"schema_version":"1.0"},"canonical_sha256":"f5765748ca915464a69d0828c8512c0d4220d76e0af286dfd6bf2f49282d7f87","source":{"kind":"arxiv","id":"2508.15631","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.15631","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"arxiv_version","alias_value":"2508.15631v2","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.15631","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"pith_short_12","alias_value":"6V3FOSGKSFKG","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"pith_short_16","alias_value":"6V3FOSGKSFKGJJU5","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"pith_short_8","alias_value":"6V3FOSGK","created_at":"2026-05-26T01:03:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:6V3FOSGKSFKGJJU5BAUMQUJMBV","target":"record","payload":{"canonical_record":{"source":{"id":"2508.15631","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-08-21T14:55:46Z","cross_cats_sorted":[],"title_canon_sha256":"7db20c109706be37cc2da97ea8f87df68a6b658ba90414d7a908dc604bfcb48b","abstract_canon_sha256":"fa7ed29d28f6870e89b467677be2e353b4834f0b3d8d86127cd641e48921705e"},"schema_version":"1.0"},"canonical_sha256":"f5765748ca915464a69d0828c8512c0d4220d76e0af286dfd6bf2f49282d7f87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-26T01:03:14.380994Z","signature_b64":"SKrDQHyVh/bh16ZESsRBPc3a+ReesD85Uu/kbutJYT2jgqU8XN84tNLKPTD9WeXTOTADzT3F3q7mTfaNcds5Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f5765748ca915464a69d0828c8512c0d4220d76e0af286dfd6bf2f49282d7f87","last_reissued_at":"2026-05-26T01:03:14.380417Z","signature_status":"signed_v1","first_computed_at":"2026-05-26T01:03:14.380417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.15631","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":"2026-05-26T01:03:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BxTrdFMISzXf/6btLkNcWyrqkd1b8yeGdkpbASZhg4Df3n94ryrBeg0eMt3/lpzeVMSwE/+458ihZ7+60dyvCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:40:44.727656Z"},"content_sha256":"053fe2814bd8fb34e2854c32e8c6eaf8d24fdb0fddd64e69dd84b6251235de14","schema_version":"1.0","event_id":"sha256:053fe2814bd8fb34e2854c32e8c6eaf8d24fdb0fddd64e69dd84b6251235de14"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:6V3FOSGKSFKGJJU5BAUMQUJMBV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High Harmonic Spectroscopy from Lower-Order to Higher-Order Topological Insulators","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexis Chacon, Bryan Lorenzo, Camilo Granados, Carlos Batista, Dasol Kim, Feng Liu, Jean Menotti, Milad Jangjan, Shambhu Ghimire, Wenlong Gao","submitted_at":"2025-08-21T14:55:46Z","abstract_excerpt":"Over the past decades, high-harmonic spectroscopy (HHS) has emerged as a powerful tool for all-optical probing of topological properties of solids. There are outstanding questions regarding universal nature of the spectral features of harmonics in their relationship to the non-trivial topological properties. Here, we present a systematic theoretical study of HHS in topological materials, including lower-order and higher-order topological insulators (LOTIs and HOTIs), focusing on observables such as helicity, circular dichroism, ellipticity dependence, and channel-resolved intensity yields. Usi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.15631","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/2508.15631/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":"2026-05-26T01:03:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eYwET9pBTSBrZk/tU5898x8aNtU/xOIjNp4Fftgz60hvnW3Av2FAYGPs/V7UgGCG5osDoLvBQ5mWE+NdAtufCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:40:44.728034Z"},"content_sha256":"3365b89a318f7c83bdf00fda452691107ff84d07ea51637e8398bee200970aa2","schema_version":"1.0","event_id":"sha256:3365b89a318f7c83bdf00fda452691107ff84d07ea51637e8398bee200970aa2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6V3FOSGKSFKGJJU5BAUMQUJMBV/bundle.json","state_url":"https://pith.science/pith/6V3FOSGKSFKGJJU5BAUMQUJMBV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6V3FOSGKSFKGJJU5BAUMQUJMBV/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":"2026-06-02T21:40:44Z","links":{"resolver":"https://pith.science/pith/6V3FOSGKSFKGJJU5BAUMQUJMBV","bundle":"https://pith.science/pith/6V3FOSGKSFKGJJU5BAUMQUJMBV/bundle.json","state":"https://pith.science/pith/6V3FOSGKSFKGJJU5BAUMQUJMBV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6V3FOSGKSFKGJJU5BAUMQUJMBV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:6V3FOSGKSFKGJJU5BAUMQUJMBV","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":"fa7ed29d28f6870e89b467677be2e353b4834f0b3d8d86127cd641e48921705e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-08-21T14:55:46Z","title_canon_sha256":"7db20c109706be37cc2da97ea8f87df68a6b658ba90414d7a908dc604bfcb48b"},"schema_version":"1.0","source":{"id":"2508.15631","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.15631","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"arxiv_version","alias_value":"2508.15631v2","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.15631","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"pith_short_12","alias_value":"6V3FOSGKSFKG","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"pith_short_16","alias_value":"6V3FOSGKSFKGJJU5","created_at":"2026-05-26T01:03:14Z"},{"alias_kind":"pith_short_8","alias_value":"6V3FOSGK","created_at":"2026-05-26T01:03:14Z"}],"graph_snapshots":[{"event_id":"sha256:3365b89a318f7c83bdf00fda452691107ff84d07ea51637e8398bee200970aa2","target":"graph","created_at":"2026-05-26T01:03:14Z","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/2508.15631/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Over the past decades, high-harmonic spectroscopy (HHS) has emerged as a powerful tool for all-optical probing of topological properties of solids. There are outstanding questions regarding universal nature of the spectral features of harmonics in their relationship to the non-trivial topological properties. Here, we present a systematic theoretical study of HHS in topological materials, including lower-order and higher-order topological insulators (LOTIs and HOTIs), focusing on observables such as helicity, circular dichroism, ellipticity dependence, and channel-resolved intensity yields. Usi","authors_text":"Alexis Chacon, Bryan Lorenzo, Camilo Granados, Carlos Batista, Dasol Kim, Feng Liu, Jean Menotti, Milad Jangjan, Shambhu Ghimire, Wenlong Gao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-08-21T14:55:46Z","title":"High Harmonic Spectroscopy from Lower-Order to Higher-Order Topological Insulators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.15631","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":"sha256:053fe2814bd8fb34e2854c32e8c6eaf8d24fdb0fddd64e69dd84b6251235de14","target":"record","created_at":"2026-05-26T01:03:14Z","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":"fa7ed29d28f6870e89b467677be2e353b4834f0b3d8d86127cd641e48921705e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-08-21T14:55:46Z","title_canon_sha256":"7db20c109706be37cc2da97ea8f87df68a6b658ba90414d7a908dc604bfcb48b"},"schema_version":"1.0","source":{"id":"2508.15631","kind":"arxiv","version":2}},"canonical_sha256":"f5765748ca915464a69d0828c8512c0d4220d76e0af286dfd6bf2f49282d7f87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5765748ca915464a69d0828c8512c0d4220d76e0af286dfd6bf2f49282d7f87","first_computed_at":"2026-05-26T01:03:14.380417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-26T01:03:14.380417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SKrDQHyVh/bh16ZESsRBPc3a+ReesD85Uu/kbutJYT2jgqU8XN84tNLKPTD9WeXTOTADzT3F3q7mTfaNcds5Ag==","signature_status":"signed_v1","signed_at":"2026-05-26T01:03:14.380994Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.15631","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:053fe2814bd8fb34e2854c32e8c6eaf8d24fdb0fddd64e69dd84b6251235de14","sha256:3365b89a318f7c83bdf00fda452691107ff84d07ea51637e8398bee200970aa2"],"state_sha256":"b7d377a957dceded099d228cdd56e17f177ff54114da912baad1a31e8eee7144"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8sGD4nIujGVa4OrjNFmdTgt0zyQrftR++uL2oJ0aCEqiEyhBltvzCA4Hu3QdKVZS1AQ/er8nJgTTxZLWfNhNDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T21:40:44.730081Z","bundle_sha256":"87670e6bf99a6cb0cb09f31120179ca6ba1b3a8f72a19c65ddb321906051cdd6"}}