{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:ED7MMTHIX7IFTKURHTU6NDIGP7","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":"91ef9a62974f1217c7b0b95bc205eaa0d0829c84512968d7182997c1941e1f96","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-03-14T16:03:37Z","title_canon_sha256":"b5c30802195db16a3b86e5eabb5a905eee837398fe5541a0b4a0f82421cb7ebe"},"schema_version":"1.0","source":{"id":"2403.09520","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.09520","created_at":"2026-07-05T11:15:37Z"},{"alias_kind":"arxiv_version","alias_value":"2403.09520v2","created_at":"2026-07-05T11:15:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.09520","created_at":"2026-07-05T11:15:37Z"},{"alias_kind":"pith_short_12","alias_value":"ED7MMTHIX7IF","created_at":"2026-07-05T11:15:37Z"},{"alias_kind":"pith_short_16","alias_value":"ED7MMTHIX7IFTKUR","created_at":"2026-07-05T11:15:37Z"},{"alias_kind":"pith_short_8","alias_value":"ED7MMTHI","created_at":"2026-07-05T11:15:37Z"}],"graph_snapshots":[{"event_id":"sha256:ea3b6515fd97f5d3a57476f599888e040bff354ce9177645cf777aecbdc758c9","target":"graph","created_at":"2026-07-05T11:15:37Z","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/2403.09520/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the symmetry requirements for topologically protected spin-polarized Weyl points in 2D altermagnets. The topology is characterized by a quantized $\\pi$-Berry phase and the degeneracy is protected by spin-space group symmetries. Gapped phases with finite Chern and/or spin/chirality Chern numbers emerge under different symmetry-breaking mass terms. We investigate the surface and transport properties of these gapped phases using representative electronic tight-binding and magnonic linear spin-wave models. In particular, we calculate the electronic and magnonic Hall currents and discuss i","authors_text":"Andreas P. Schnyder, Kirill Parshukov, Raymond Wiedmann","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-03-14T16:03:37Z","title":"Topological responses from gapped Weyl points in 2D altermagnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.09520","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":"sha256:8e85a1ebe3fe928096c79bd002a4239a1c9269d2ff1c74dbbac876ff87c2d479","target":"record","created_at":"2026-07-05T11:15:37Z","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":"91ef9a62974f1217c7b0b95bc205eaa0d0829c84512968d7182997c1941e1f96","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-03-14T16:03:37Z","title_canon_sha256":"b5c30802195db16a3b86e5eabb5a905eee837398fe5541a0b4a0f82421cb7ebe"},"schema_version":"1.0","source":{"id":"2403.09520","kind":"arxiv","version":2}},"canonical_sha256":"20fec64ce8bfd059aa913ce9e68d067fd18dff1b5e6c0c75063ac8a901425590","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"20fec64ce8bfd059aa913ce9e68d067fd18dff1b5e6c0c75063ac8a901425590","first_computed_at":"2026-07-05T11:15:37.209704Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:15:37.209704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vCz/d0uRCHeS7jCa9ns/WvWiEkx1zS1WsZHrijcO6C4b68wuVi9WfxJtbJvZZRSI3CEQdwxv0jwkH/3qq/WcDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:15:37.210230Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.09520","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e85a1ebe3fe928096c79bd002a4239a1c9269d2ff1c74dbbac876ff87c2d479","sha256:ea3b6515fd97f5d3a57476f599888e040bff354ce9177645cf777aecbdc758c9"],"state_sha256":"4788192dad85161e3dce80f34820bbfc10f2afbef10f9d123f80531796f0c594"}