{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:KQLVAGAJLWJ3FS6PCN4I7DMPZE","short_pith_number":"pith:KQLVAGAJ","schema_version":"1.0","canonical_sha256":"54175018095d93b2cbcf13788f8d8fc91a631ba163bb13e4a570c469faf2e103","source":{"kind":"arxiv","id":"2601.01524","version":1},"attestation_state":"computed","paper":{"title":"Non-Hermitian second-order topological insulator with point gap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Hao Lin, Hong Wu, Jia-Ji Zhu, Jian Li, Jun-Li Zhu, Xue-Min Yang","submitted_at":"2026-01-04T13:21:59Z","abstract_excerpt":"The zero-mode corner states in the gap of two-dimensional non-Hermitian Su-Schrieffer-Heeger model are robust to infinitesimal perturbations that preserve chiral symmetry. However, we demonstrate that this general belief is no longer valid in large-sized systems. To reveal the higher-order topology of non-Hermitian systems, we establish a correspondence between the stable zero-mode singular states and the topologically protected corner states of energy spectrum in the thermodynamic limit. Within this framework, the number of zero-mode singular values is directly linked to the number of mid-gap"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2601.01524","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-01-04T13:21:59Z","cross_cats_sorted":[],"title_canon_sha256":"bb2a8ef7caecc87046a43a91d3d2c126f3e3f680152d65b5d1ec4fdc17625159","abstract_canon_sha256":"884675921edf37101ae676207bc8e4d06e136629ccc1bb7684dadd986cdc49a6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:09:53.516069Z","signature_b64":"cVrUWK2a1K3VxZQBBB+HpojBwrF9/YPU+qL81BUHZ5uhVxAzvHmVkb0qA5DZeuKRUEWXrZGlmpxieUTeseg4Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54175018095d93b2cbcf13788f8d8fc91a631ba163bb13e4a570c469faf2e103","last_reissued_at":"2026-06-19T16:09:53.515644Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:09:53.515644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-Hermitian second-order topological insulator with point gap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Hao Lin, Hong Wu, Jia-Ji Zhu, Jian Li, Jun-Li Zhu, Xue-Min Yang","submitted_at":"2026-01-04T13:21:59Z","abstract_excerpt":"The zero-mode corner states in the gap of two-dimensional non-Hermitian Su-Schrieffer-Heeger model are robust to infinitesimal perturbations that preserve chiral symmetry. However, we demonstrate that this general belief is no longer valid in large-sized systems. To reveal the higher-order topology of non-Hermitian systems, we establish a correspondence between the stable zero-mode singular states and the topologically protected corner states of energy spectrum in the thermodynamic limit. Within this framework, the number of zero-mode singular values is directly linked to the number of mid-gap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.01524","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2601.01524/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2601.01524","created_at":"2026-06-19T16:09:53.515703+00:00"},{"alias_kind":"arxiv_version","alias_value":"2601.01524v1","created_at":"2026-06-19T16:09:53.515703+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.01524","created_at":"2026-06-19T16:09:53.515703+00:00"},{"alias_kind":"pith_short_12","alias_value":"KQLVAGAJLWJ3","created_at":"2026-06-19T16:09:53.515703+00:00"},{"alias_kind":"pith_short_16","alias_value":"KQLVAGAJLWJ3FS6P","created_at":"2026-06-19T16:09:53.515703+00:00"},{"alias_kind":"pith_short_8","alias_value":"KQLVAGAJ","created_at":"2026-06-19T16:09:53.515703+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE","json":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE.json","graph_json":"https://pith.science/api/pith-number/KQLVAGAJLWJ3FS6PCN4I7DMPZE/graph.json","events_json":"https://pith.science/api/pith-number/KQLVAGAJLWJ3FS6PCN4I7DMPZE/events.json","paper":"https://pith.science/paper/KQLVAGAJ"},"agent_actions":{"view_html":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE","download_json":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE.json","view_paper":"https://pith.science/paper/KQLVAGAJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2601.01524&json=true","fetch_graph":"https://pith.science/api/pith-number/KQLVAGAJLWJ3FS6PCN4I7DMPZE/graph.json","fetch_events":"https://pith.science/api/pith-number/KQLVAGAJLWJ3FS6PCN4I7DMPZE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE/action/storage_attestation","attest_author":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE/action/author_attestation","sign_citation":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE/action/citation_signature","submit_replication":"https://pith.science/pith/KQLVAGAJLWJ3FS6PCN4I7DMPZE/action/replication_record"}},"created_at":"2026-06-19T16:09:53.515703+00:00","updated_at":"2026-06-19T16:09:53.515703+00:00"}