{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:K7UV436CRG5ZIXOF6ZWNOA24UD","short_pith_number":"pith:K7UV436C","canonical_record":{"source":{"id":"2411.19928","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-29T18:41:28Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"3abc8ee11d13c4adf912a2882da725de5b6687702a1ceab719d79a5b3e1083f5","abstract_canon_sha256":"b0c3e0941c794fea7a0e2385c55056606c3cec9fbc3939fbca35543f53a3ba78"},"schema_version":"1.0"},"canonical_sha256":"57e95e6fc289bb945dc5f66cd7035ca0e8601a92a7b0f431c3da0b3dc4f1aa05","source":{"kind":"arxiv","id":"2411.19928","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.19928","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"arxiv_version","alias_value":"2411.19928v1","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.19928","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"pith_short_12","alias_value":"K7UV436CRG5Z","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"pith_short_16","alias_value":"K7UV436CRG5ZIXOF","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"pith_short_8","alias_value":"K7UV436C","created_at":"2026-07-05T09:42:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:K7UV436CRG5ZIXOF6ZWNOA24UD","target":"record","payload":{"canonical_record":{"source":{"id":"2411.19928","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-29T18:41:28Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"3abc8ee11d13c4adf912a2882da725de5b6687702a1ceab719d79a5b3e1083f5","abstract_canon_sha256":"b0c3e0941c794fea7a0e2385c55056606c3cec9fbc3939fbca35543f53a3ba78"},"schema_version":"1.0"},"canonical_sha256":"57e95e6fc289bb945dc5f66cd7035ca0e8601a92a7b0f431c3da0b3dc4f1aa05","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:42:15.608814Z","signature_b64":"y+KOP4hDP2HCPnaDoxl9P2e4Z0uhnriAPbTTVRhgmA3v1JSTHyLh2+abzq4c1+E9E+dkTQPtGjJKpM+xYS35Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57e95e6fc289bb945dc5f66cd7035ca0e8601a92a7b0f431c3da0b3dc4f1aa05","last_reissued_at":"2026-07-05T09:42:15.608337Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:42:15.608337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.19928","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":"2026-07-05T09:42:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WvlY8pbKeUaNUrql9kl9GVTrJfapkdDOJCJ6sOAUJZi0zKPS6qTQHBY4dfCkqz1uj9r4ajoRqRLHjOreVCWNCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:02:55.331438Z"},"content_sha256":"150061fe49664061aa7c5e98190d16c43e80a05e9159fd85ec96e3af6a2deef7","schema_version":"1.0","event_id":"sha256:150061fe49664061aa7c5e98190d16c43e80a05e9159fd85ec96e3af6a2deef7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:K7UV436CRG5ZIXOF6ZWNOA24UD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Altermagnetic multiferroics and altermagnetoelectric effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Libor \\v{S}mejkal","submitted_at":"2024-11-29T18:41:28Z","abstract_excerpt":"Magnetoelectric multiferroics are highly sought after for applications in low-power electronics and for advancing fundamental research, including axion insulators and dark matter detection. However, achieving a combination of ferroic spin and electric orders, along with their controllable switching, remains a significant challenge in conventional ferromagnets and antiferromagnets. Here, we present first-principles evidence that time-reversal symmetry-breaking altermagnetic spin polarization with relatively high critical temperatures can emerge in ferroelectrics BaCuF$_4$ (T$_N$ $\\sim$ 275K) an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.19928","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/2411.19928/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":"2026-07-05T09:42:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ARqwcA5eJ50ojO0nEQfXmShWSHN9IzASs04pyvi9JyhEinzFd0KXXJxpUSXvtEa2jbFDRTOjQfYId4LSVxABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:02:55.331971Z"},"content_sha256":"e1b22e35ddb119d44effc47f7c49a684f9574def2604a9af8586f0695ad7c5c1","schema_version":"1.0","event_id":"sha256:e1b22e35ddb119d44effc47f7c49a684f9574def2604a9af8586f0695ad7c5c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K7UV436CRG5ZIXOF6ZWNOA24UD/bundle.json","state_url":"https://pith.science/pith/K7UV436CRG5ZIXOF6ZWNOA24UD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K7UV436CRG5ZIXOF6ZWNOA24UD/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":"2026-08-05T04:02:55Z","links":{"resolver":"https://pith.science/pith/K7UV436CRG5ZIXOF6ZWNOA24UD","bundle":"https://pith.science/pith/K7UV436CRG5ZIXOF6ZWNOA24UD/bundle.json","state":"https://pith.science/pith/K7UV436CRG5ZIXOF6ZWNOA24UD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K7UV436CRG5ZIXOF6ZWNOA24UD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:K7UV436CRG5ZIXOF6ZWNOA24UD","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":"b0c3e0941c794fea7a0e2385c55056606c3cec9fbc3939fbca35543f53a3ba78","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-29T18:41:28Z","title_canon_sha256":"3abc8ee11d13c4adf912a2882da725de5b6687702a1ceab719d79a5b3e1083f5"},"schema_version":"1.0","source":{"id":"2411.19928","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.19928","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"arxiv_version","alias_value":"2411.19928v1","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.19928","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"pith_short_12","alias_value":"K7UV436CRG5Z","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"pith_short_16","alias_value":"K7UV436CRG5ZIXOF","created_at":"2026-07-05T09:42:15Z"},{"alias_kind":"pith_short_8","alias_value":"K7UV436C","created_at":"2026-07-05T09:42:15Z"}],"graph_snapshots":[{"event_id":"sha256:e1b22e35ddb119d44effc47f7c49a684f9574def2604a9af8586f0695ad7c5c1","target":"graph","created_at":"2026-07-05T09:42:15Z","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/2411.19928/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Magnetoelectric multiferroics are highly sought after for applications in low-power electronics and for advancing fundamental research, including axion insulators and dark matter detection. However, achieving a combination of ferroic spin and electric orders, along with their controllable switching, remains a significant challenge in conventional ferromagnets and antiferromagnets. Here, we present first-principles evidence that time-reversal symmetry-breaking altermagnetic spin polarization with relatively high critical temperatures can emerge in ferroelectrics BaCuF$_4$ (T$_N$ $\\sim$ 275K) an","authors_text":"Libor \\v{S}mejkal","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-29T18:41:28Z","title":"Altermagnetic multiferroics and altermagnetoelectric effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.19928","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":"sha256:150061fe49664061aa7c5e98190d16c43e80a05e9159fd85ec96e3af6a2deef7","target":"record","created_at":"2026-07-05T09:42:15Z","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":"b0c3e0941c794fea7a0e2385c55056606c3cec9fbc3939fbca35543f53a3ba78","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-11-29T18:41:28Z","title_canon_sha256":"3abc8ee11d13c4adf912a2882da725de5b6687702a1ceab719d79a5b3e1083f5"},"schema_version":"1.0","source":{"id":"2411.19928","kind":"arxiv","version":1}},"canonical_sha256":"57e95e6fc289bb945dc5f66cd7035ca0e8601a92a7b0f431c3da0b3dc4f1aa05","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57e95e6fc289bb945dc5f66cd7035ca0e8601a92a7b0f431c3da0b3dc4f1aa05","first_computed_at":"2026-07-05T09:42:15.608337Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:42:15.608337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y+KOP4hDP2HCPnaDoxl9P2e4Z0uhnriAPbTTVRhgmA3v1JSTHyLh2+abzq4c1+E9E+dkTQPtGjJKpM+xYS35Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:42:15.608814Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.19928","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:150061fe49664061aa7c5e98190d16c43e80a05e9159fd85ec96e3af6a2deef7","sha256:e1b22e35ddb119d44effc47f7c49a684f9574def2604a9af8586f0695ad7c5c1"],"state_sha256":"3bfe3ebb7b67a3cf42e6080fc6b8065a50cf2ad45015162637c04f77e604b294"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E6fpDjKUGGI3yxo57KJ46rP1153r2kpsPZiUc4LaCdaYdmHEQb9UZkr+ZIcHmKF/+GDHOmV8yLO0f3rVUkXsCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T04:02:55.336357Z","bundle_sha256":"2b675df85b52f632ec93510e9b85727f93e6105f83e02a41faf48228284cdfad"}}