{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:UKHTXB3Q3QGOUN3PW4ODVCILRE","short_pith_number":"pith:UKHTXB3Q","canonical_record":{"source":{"id":"2412.20460","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-12-29T13:05:50Z","cross_cats_sorted":[],"title_canon_sha256":"673136e1f63c04394feb06f82363a5de935703f920d1729cad4da8b494946152","abstract_canon_sha256":"20ec86670718b6751d122dba904a182f2ad7494eb06a1865f3b6ee854fd85b27"},"schema_version":"1.0"},"canonical_sha256":"a28f3b8770dc0cea376fb71c3a890b8913651267a284b4e5074985d4730b0a58","source":{"kind":"arxiv","id":"2412.20460","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.20460","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"arxiv_version","alias_value":"2412.20460v1","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.20460","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"pith_short_12","alias_value":"UKHTXB3Q3QGO","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"pith_short_16","alias_value":"UKHTXB3Q3QGOUN3P","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"pith_short_8","alias_value":"UKHTXB3Q","created_at":"2026-07-05T09:55:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:UKHTXB3Q3QGOUN3PW4ODVCILRE","target":"record","payload":{"canonical_record":{"source":{"id":"2412.20460","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-12-29T13:05:50Z","cross_cats_sorted":[],"title_canon_sha256":"673136e1f63c04394feb06f82363a5de935703f920d1729cad4da8b494946152","abstract_canon_sha256":"20ec86670718b6751d122dba904a182f2ad7494eb06a1865f3b6ee854fd85b27"},"schema_version":"1.0"},"canonical_sha256":"a28f3b8770dc0cea376fb71c3a890b8913651267a284b4e5074985d4730b0a58","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:55:17.345766Z","signature_b64":"BoqJ9VWOj1wmJBQDDUa0xkEWU5A813iAEYUN02xLUqsRyH9wyjZy62mDRF2KRf0PEJt4EGZlb13C11Lln1sfDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a28f3b8770dc0cea376fb71c3a890b8913651267a284b4e5074985d4730b0a58","last_reissued_at":"2026-07-05T09:55:17.345292Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:55:17.345292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.20460","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":"2026-07-05T09:55:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z9mBcSkqHdT0fRTTLDaPvfS95HNGbt3SH73OMXCMAosZbfLFZ15ep8fzNe/hqR34WtxO9yGlWXDeQRx3CGydDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T19:12:32.560587Z"},"content_sha256":"27121556b979bac706fd3c5db893dedfaa1acb9ae460d69d7d2d6d54d48fcb8b","schema_version":"1.0","event_id":"sha256:27121556b979bac706fd3c5db893dedfaa1acb9ae460d69d7d2d6d54d48fcb8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:UKHTXB3Q3QGOUN3PW4ODVCILRE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the band topology of the breathing kagome lattice","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Adam Yanis Chaou, Clara K. Geschner, Piet W. Brouwer, Vatsal Dwivedi","submitted_at":"2024-12-29T13:05:50Z","abstract_excerpt":"A two-dimensional second-order topological insulator exhibits topologically protected zero-energy states at its corners. In the literature, the breathing kagome lattice with nearest-neighbor hopping is often mentioned as an example of a two-dimensional second-order topological insulator. Here we show by explicit construction that the corner states of the breathing kagome lattice can be removed by a continuous change of the hopping parameters, without breaking any of the model's symmetries, without closing bulk and boundary gaps, and without introducing hopping terms not present in the original"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.20460","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/2412.20460/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":"2026-07-05T09:55:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JWujshr4aOh9ilozpb5lCi5IwbjgCQPhIGgSYAs3mbhvG5Xo8+XND5M0W6Dj7nbczSiTBGAFM2GAbEHVdyj+DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T19:12:32.560961Z"},"content_sha256":"2fb52b9abe19922b9c03f2df0cb8cf23a5c5181713eb8ef50d5e33caf7541a26","schema_version":"1.0","event_id":"sha256:2fb52b9abe19922b9c03f2df0cb8cf23a5c5181713eb8ef50d5e33caf7541a26"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UKHTXB3Q3QGOUN3PW4ODVCILRE/bundle.json","state_url":"https://pith.science/pith/UKHTXB3Q3QGOUN3PW4ODVCILRE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UKHTXB3Q3QGOUN3PW4ODVCILRE/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":"2026-07-27T19:12:32Z","links":{"resolver":"https://pith.science/pith/UKHTXB3Q3QGOUN3PW4ODVCILRE","bundle":"https://pith.science/pith/UKHTXB3Q3QGOUN3PW4ODVCILRE/bundle.json","state":"https://pith.science/pith/UKHTXB3Q3QGOUN3PW4ODVCILRE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UKHTXB3Q3QGOUN3PW4ODVCILRE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:UKHTXB3Q3QGOUN3PW4ODVCILRE","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":"20ec86670718b6751d122dba904a182f2ad7494eb06a1865f3b6ee854fd85b27","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-12-29T13:05:50Z","title_canon_sha256":"673136e1f63c04394feb06f82363a5de935703f920d1729cad4da8b494946152"},"schema_version":"1.0","source":{"id":"2412.20460","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.20460","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"arxiv_version","alias_value":"2412.20460v1","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.20460","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"pith_short_12","alias_value":"UKHTXB3Q3QGO","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"pith_short_16","alias_value":"UKHTXB3Q3QGOUN3P","created_at":"2026-07-05T09:55:17Z"},{"alias_kind":"pith_short_8","alias_value":"UKHTXB3Q","created_at":"2026-07-05T09:55:17Z"}],"graph_snapshots":[{"event_id":"sha256:2fb52b9abe19922b9c03f2df0cb8cf23a5c5181713eb8ef50d5e33caf7541a26","target":"graph","created_at":"2026-07-05T09:55:17Z","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/2412.20460/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A two-dimensional second-order topological insulator exhibits topologically protected zero-energy states at its corners. In the literature, the breathing kagome lattice with nearest-neighbor hopping is often mentioned as an example of a two-dimensional second-order topological insulator. Here we show by explicit construction that the corner states of the breathing kagome lattice can be removed by a continuous change of the hopping parameters, without breaking any of the model's symmetries, without closing bulk and boundary gaps, and without introducing hopping terms not present in the original","authors_text":"Adam Yanis Chaou, Clara K. Geschner, Piet W. Brouwer, Vatsal Dwivedi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-12-29T13:05:50Z","title":"On the band topology of the breathing kagome lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.20460","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":"sha256:27121556b979bac706fd3c5db893dedfaa1acb9ae460d69d7d2d6d54d48fcb8b","target":"record","created_at":"2026-07-05T09:55:17Z","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":"20ec86670718b6751d122dba904a182f2ad7494eb06a1865f3b6ee854fd85b27","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-12-29T13:05:50Z","title_canon_sha256":"673136e1f63c04394feb06f82363a5de935703f920d1729cad4da8b494946152"},"schema_version":"1.0","source":{"id":"2412.20460","kind":"arxiv","version":1}},"canonical_sha256":"a28f3b8770dc0cea376fb71c3a890b8913651267a284b4e5074985d4730b0a58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a28f3b8770dc0cea376fb71c3a890b8913651267a284b4e5074985d4730b0a58","first_computed_at":"2026-07-05T09:55:17.345292Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:55:17.345292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BoqJ9VWOj1wmJBQDDUa0xkEWU5A813iAEYUN02xLUqsRyH9wyjZy62mDRF2KRf0PEJt4EGZlb13C11Lln1sfDA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:55:17.345766Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.20460","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:27121556b979bac706fd3c5db893dedfaa1acb9ae460d69d7d2d6d54d48fcb8b","sha256:2fb52b9abe19922b9c03f2df0cb8cf23a5c5181713eb8ef50d5e33caf7541a26"],"state_sha256":"2f72c8d7e85fb3cb89a8159f8a998f5240b432485ae71f806c9b18b5036a3828"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6NUuaa/ig38C8karUBWKHzrOGsjYvEOs6Y5TVqq2yHyaTQ1nf6hbYYuPP1vpr3gC7zMbIInEb25/JfEsVYewAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-27T19:12:32.563766Z","bundle_sha256":"099692d412261003652cd28f97cbd255ef831dd12b16b6044ede1f1238a549af"}}