{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:X3ANGJ3P5V3LSTEF5FKBRKCOSU","short_pith_number":"pith:X3ANGJ3P","canonical_record":{"source":{"id":"2601.07443","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-01-12T11:32:48Z","cross_cats_sorted":[],"title_canon_sha256":"f0f6c297dff5bfd4731f88f4850fe76ce3631060dc7014495cbd75a26336d4a7","abstract_canon_sha256":"6abadaf7b1983032879a942f2d6a28791a8d063ff423d41a317e8ae1a9ba2de2"},"schema_version":"1.0"},"canonical_sha256":"bec0d3276fed76b94c85e95418a84e950f0a86379368fcb795c0f8ea65d51b54","source":{"kind":"arxiv","id":"2601.07443","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.07443","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"arxiv_version","alias_value":"2601.07443v2","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.07443","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"pith_short_12","alias_value":"X3ANGJ3P5V3L","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"pith_short_16","alias_value":"X3ANGJ3P5V3LSTEF","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"pith_short_8","alias_value":"X3ANGJ3P","created_at":"2026-08-04T00:36:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:X3ANGJ3P5V3LSTEF5FKBRKCOSU","target":"record","payload":{"canonical_record":{"source":{"id":"2601.07443","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-01-12T11:32:48Z","cross_cats_sorted":[],"title_canon_sha256":"f0f6c297dff5bfd4731f88f4850fe76ce3631060dc7014495cbd75a26336d4a7","abstract_canon_sha256":"6abadaf7b1983032879a942f2d6a28791a8d063ff423d41a317e8ae1a9ba2de2"},"schema_version":"1.0"},"canonical_sha256":"bec0d3276fed76b94c85e95418a84e950f0a86379368fcb795c0f8ea65d51b54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-04T00:36:00.854305Z","signature_b64":"8Zsd+O24K7/oiatWvMEsj/lsXgJ+ofEeIJrm0Xf/X7URsq88Ht1LcDVxAZBm0mEWlRVYzbdaiabIyiyCkSskDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bec0d3276fed76b94c85e95418a84e950f0a86379368fcb795c0f8ea65d51b54","last_reissued_at":"2026-08-04T00:36:00.852780Z","signature_status":"signed_v1","first_computed_at":"2026-08-04T00:36:00.852780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2601.07443","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":"2026-08-04T00:36:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xNSiDqqwjzKFarMFPjoXcGDsZfXYVD1pFuyJMTvWom5MUskun1FZixgIt0YlsCr8g6IdJJiTVvMsH2eJ+0F8Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T19:23:23.263397Z"},"content_sha256":"8aa765ed14c8a0196f353aaa33fbd18a0c9466ea6583253e69882ef62088ce2f","schema_version":"1.0","event_id":"sha256:8aa765ed14c8a0196f353aaa33fbd18a0c9466ea6583253e69882ef62088ce2f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:X3ANGJ3P5V3LSTEF5FKBRKCOSU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hexagonal Warping Control of Exceptional Points in Topological Insulator--Ferromagnetic Heterojunctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Awadhesh Narayan, Md Afsar Reja","submitted_at":"2026-01-12T11:32:48Z","abstract_excerpt":"Exceptional points (EPs) are non-Hermitian degeneracies, where both eigenvalues and eigenvectors coalesce, which are fundamentally distinct from their Hermitian counterparts. In this study, we investigate the influence of hexagonal warping on EPs emerging at the interfaces between topological insulators and ferromagnets. We demonstrate that the presence of the warping term plays a crucial role in determining the locations of the EPs. Furthermore, we show that the number as well as the positions of EPs emerging at such junctions can be tuned by an applied magnetic field. Our results, in line wi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.07443","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/2601.07443/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":"2026-08-04T00:36:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W8H5iLvDwxpdir6bLQv3jfgAs60y7R+i/ERbS30eFdIjuzkPOg5TOnJANCdWnip0VT3z3aRc33IbEtP0J8tsDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T19:23:23.264280Z"},"content_sha256":"e9e100fe27e5febf97556180f803ee291f8fdb44a8cdc08f4aa6a2ca44f102ea","schema_version":"1.0","event_id":"sha256:e9e100fe27e5febf97556180f803ee291f8fdb44a8cdc08f4aa6a2ca44f102ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X3ANGJ3P5V3LSTEF5FKBRKCOSU/bundle.json","state_url":"https://pith.science/pith/X3ANGJ3P5V3LSTEF5FKBRKCOSU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X3ANGJ3P5V3LSTEF5FKBRKCOSU/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":"2026-08-10T19:23:23Z","links":{"resolver":"https://pith.science/pith/X3ANGJ3P5V3LSTEF5FKBRKCOSU","bundle":"https://pith.science/pith/X3ANGJ3P5V3LSTEF5FKBRKCOSU/bundle.json","state":"https://pith.science/pith/X3ANGJ3P5V3LSTEF5FKBRKCOSU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X3ANGJ3P5V3LSTEF5FKBRKCOSU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:X3ANGJ3P5V3LSTEF5FKBRKCOSU","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":"6abadaf7b1983032879a942f2d6a28791a8d063ff423d41a317e8ae1a9ba2de2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-01-12T11:32:48Z","title_canon_sha256":"f0f6c297dff5bfd4731f88f4850fe76ce3631060dc7014495cbd75a26336d4a7"},"schema_version":"1.0","source":{"id":"2601.07443","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.07443","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"arxiv_version","alias_value":"2601.07443v2","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.07443","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"pith_short_12","alias_value":"X3ANGJ3P5V3L","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"pith_short_16","alias_value":"X3ANGJ3P5V3LSTEF","created_at":"2026-08-04T00:36:00Z"},{"alias_kind":"pith_short_8","alias_value":"X3ANGJ3P","created_at":"2026-08-04T00:36:00Z"}],"graph_snapshots":[{"event_id":"sha256:e9e100fe27e5febf97556180f803ee291f8fdb44a8cdc08f4aa6a2ca44f102ea","target":"graph","created_at":"2026-08-04T00:36:00Z","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/2601.07443/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Exceptional points (EPs) are non-Hermitian degeneracies, where both eigenvalues and eigenvectors coalesce, which are fundamentally distinct from their Hermitian counterparts. In this study, we investigate the influence of hexagonal warping on EPs emerging at the interfaces between topological insulators and ferromagnets. We demonstrate that the presence of the warping term plays a crucial role in determining the locations of the EPs. Furthermore, we show that the number as well as the positions of EPs emerging at such junctions can be tuned by an applied magnetic field. Our results, in line wi","authors_text":"Awadhesh Narayan, Md Afsar Reja","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-01-12T11:32:48Z","title":"Hexagonal Warping Control of Exceptional Points in Topological Insulator--Ferromagnetic Heterojunctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.07443","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":"sha256:8aa765ed14c8a0196f353aaa33fbd18a0c9466ea6583253e69882ef62088ce2f","target":"record","created_at":"2026-08-04T00:36:00Z","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":"6abadaf7b1983032879a942f2d6a28791a8d063ff423d41a317e8ae1a9ba2de2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-01-12T11:32:48Z","title_canon_sha256":"f0f6c297dff5bfd4731f88f4850fe76ce3631060dc7014495cbd75a26336d4a7"},"schema_version":"1.0","source":{"id":"2601.07443","kind":"arxiv","version":2}},"canonical_sha256":"bec0d3276fed76b94c85e95418a84e950f0a86379368fcb795c0f8ea65d51b54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bec0d3276fed76b94c85e95418a84e950f0a86379368fcb795c0f8ea65d51b54","first_computed_at":"2026-08-04T00:36:00.852780Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-04T00:36:00.852780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8Zsd+O24K7/oiatWvMEsj/lsXgJ+ofEeIJrm0Xf/X7URsq88Ht1LcDVxAZBm0mEWlRVYzbdaiabIyiyCkSskDw==","signature_status":"signed_v1","signed_at":"2026-08-04T00:36:00.854305Z","signed_message":"canonical_sha256_bytes"},"source_id":"2601.07443","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8aa765ed14c8a0196f353aaa33fbd18a0c9466ea6583253e69882ef62088ce2f","sha256:e9e100fe27e5febf97556180f803ee291f8fdb44a8cdc08f4aa6a2ca44f102ea"],"state_sha256":"f4ab26d49de25648f132a02da3d7c8ec25b6e4aa7c3900092326f87b0ce1adb6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pDCbaUB68f4k+loK4qYnwV8MRgIiOusNJsN8lH6IT0o3WzHfJaqSR1OXLPSD0/NiK0nUzhMGQ9UiA035WakYCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T19:23:23.276535Z","bundle_sha256":"621535910a268425657410f4e26015a5308ee9e83762585a7f16789dcdc8af49"}}