{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:CP724P6DU5MUENY2WPA74OBB57","short_pith_number":"pith:CP724P6D","canonical_record":{"source":{"id":"2107.12509","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T23:02:24Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"bb0c2ab4d903aa717123c995fef813a5b3dd30916266c573676b2ae4263fb8aa","abstract_canon_sha256":"1e09bafa8d749e4afd39a60f4b985f87c1f550882f5c4b175d3e591734eab84d"},"schema_version":"1.0"},"canonical_sha256":"13ffae3fc3a75942371ab3c1fe3821efe63e9f6f6a28381519ec8db8554defc5","source":{"kind":"arxiv","id":"2107.12509","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.12509","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"arxiv_version","alias_value":"2107.12509v1","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.12509","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"pith_short_12","alias_value":"CP724P6DU5MU","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"CP724P6DU5MUENY2","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"CP724P6D","created_at":"2026-07-05T03:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:CP724P6DU5MUENY2WPA74OBB57","target":"record","payload":{"canonical_record":{"source":{"id":"2107.12509","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T23:02:24Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"bb0c2ab4d903aa717123c995fef813a5b3dd30916266c573676b2ae4263fb8aa","abstract_canon_sha256":"1e09bafa8d749e4afd39a60f4b985f87c1f550882f5c4b175d3e591734eab84d"},"schema_version":"1.0"},"canonical_sha256":"13ffae3fc3a75942371ab3c1fe3821efe63e9f6f6a28381519ec8db8554defc5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:27:57.931911Z","signature_b64":"l02ILJa5FopmjgWhhZfVQ9rXD5wVIcJSOav6T+Mch/Kq1AmOxkDwA3U/2a+CC1LOtW1ucYXFXPcyScQeqPMCDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13ffae3fc3a75942371ab3c1fe3821efe63e9f6f6a28381519ec8db8554defc5","last_reissued_at":"2026-07-05T03:27:57.931311Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:27:57.931311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.12509","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":"2026-07-05T03:27:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"peIgkka27t3SDaBUgSxfNvk4cF1EYWLNGxI3F/QyWr2AHsS4c2m1+cFkOlh9DGfdE2ba3fQz72prNLVKWwgWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T22:47:53.920313Z"},"content_sha256":"6d9467fae9a5518dfb6b503b650059f461e5f6c09c3ebe0b06f4dfe92d320c73","schema_version":"1.0","event_id":"sha256:6d9467fae9a5518dfb6b503b650059f461e5f6c09c3ebe0b06f4dfe92d320c73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:CP724P6DU5MUENY2WPA74OBB57","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Engineering of Ferroic Orders in Thin Films by Anionic Substitution","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. C. Garcia-Castro, Aldo H. Romero, Cheng Cen, Eric Bousquet, Yanjun Ma, Zachary Romestan","submitted_at":"2021-07-26T23:02:24Z","abstract_excerpt":"Multiferroics are a unique class of materials where magnetic and ferroelectric orders coexist. The research on multiferroics contributes significantly to the fundamental understanding of the strong correlations between different material degrees of freedom and provides an energy-efficient route toward the electrical control of magnetism. While multiple ABO3 oxide perovskites have been identified as being multiferroic, their magnetoelectric coupling strength is often weak, necessitating the material search in different compounds. Here, we report the observation of room-temperature multiferroic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.12509","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/2107.12509/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":"2026-07-05T03:27:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U87XKPA22yX+kpDDvIgtbU0MXFeXrJNzMQJuf89rkzAC8iow0ME+An8OROIAtyBddXK2h/q8k+ucfNGDc4QhCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T22:47:53.920698Z"},"content_sha256":"4e644cd2c8d07c40c9a9d7fcbeed4da9ed540a52e87ae6d2761c3e38bdb3b70a","schema_version":"1.0","event_id":"sha256:4e644cd2c8d07c40c9a9d7fcbeed4da9ed540a52e87ae6d2761c3e38bdb3b70a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CP724P6DU5MUENY2WPA74OBB57/bundle.json","state_url":"https://pith.science/pith/CP724P6DU5MUENY2WPA74OBB57/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CP724P6DU5MUENY2WPA74OBB57/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":"2026-07-26T22:47:53Z","links":{"resolver":"https://pith.science/pith/CP724P6DU5MUENY2WPA74OBB57","bundle":"https://pith.science/pith/CP724P6DU5MUENY2WPA74OBB57/bundle.json","state":"https://pith.science/pith/CP724P6DU5MUENY2WPA74OBB57/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CP724P6DU5MUENY2WPA74OBB57/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:CP724P6DU5MUENY2WPA74OBB57","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":"1e09bafa8d749e4afd39a60f4b985f87c1f550882f5c4b175d3e591734eab84d","cross_cats_sorted":["cond-mat.other"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T23:02:24Z","title_canon_sha256":"bb0c2ab4d903aa717123c995fef813a5b3dd30916266c573676b2ae4263fb8aa"},"schema_version":"1.0","source":{"id":"2107.12509","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.12509","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"arxiv_version","alias_value":"2107.12509v1","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.12509","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"pith_short_12","alias_value":"CP724P6DU5MU","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"CP724P6DU5MUENY2","created_at":"2026-07-05T03:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"CP724P6D","created_at":"2026-07-05T03:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:4e644cd2c8d07c40c9a9d7fcbeed4da9ed540a52e87ae6d2761c3e38bdb3b70a","target":"graph","created_at":"2026-07-05T03:27:57Z","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/2107.12509/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Multiferroics are a unique class of materials where magnetic and ferroelectric orders coexist. The research on multiferroics contributes significantly to the fundamental understanding of the strong correlations between different material degrees of freedom and provides an energy-efficient route toward the electrical control of magnetism. While multiple ABO3 oxide perovskites have been identified as being multiferroic, their magnetoelectric coupling strength is often weak, necessitating the material search in different compounds. Here, we report the observation of room-temperature multiferroic ","authors_text":"A. C. Garcia-Castro, Aldo H. Romero, Cheng Cen, Eric Bousquet, Yanjun Ma, Zachary Romestan","cross_cats":["cond-mat.other"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T23:02:24Z","title":"Engineering of Ferroic Orders in Thin Films by Anionic Substitution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.12509","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":"sha256:6d9467fae9a5518dfb6b503b650059f461e5f6c09c3ebe0b06f4dfe92d320c73","target":"record","created_at":"2026-07-05T03:27:57Z","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":"1e09bafa8d749e4afd39a60f4b985f87c1f550882f5c4b175d3e591734eab84d","cross_cats_sorted":["cond-mat.other"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T23:02:24Z","title_canon_sha256":"bb0c2ab4d903aa717123c995fef813a5b3dd30916266c573676b2ae4263fb8aa"},"schema_version":"1.0","source":{"id":"2107.12509","kind":"arxiv","version":1}},"canonical_sha256":"13ffae3fc3a75942371ab3c1fe3821efe63e9f6f6a28381519ec8db8554defc5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"13ffae3fc3a75942371ab3c1fe3821efe63e9f6f6a28381519ec8db8554defc5","first_computed_at":"2026-07-05T03:27:57.931311Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:27:57.931311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l02ILJa5FopmjgWhhZfVQ9rXD5wVIcJSOav6T+Mch/Kq1AmOxkDwA3U/2a+CC1LOtW1ucYXFXPcyScQeqPMCDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:27:57.931911Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.12509","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6d9467fae9a5518dfb6b503b650059f461e5f6c09c3ebe0b06f4dfe92d320c73","sha256:4e644cd2c8d07c40c9a9d7fcbeed4da9ed540a52e87ae6d2761c3e38bdb3b70a"],"state_sha256":"8118e2018c9182888bb8fe7a640c3ca7de45be7b1fe1c96905b1432136165741"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DMmIgAYKzIdBLU2no+E9lUxH5byapEQmOoGA33PzyC1xS5ylnozrxEbHwH9+2aT33rUoVz6G+o5papcu/fPhCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-26T22:47:53.923103Z","bundle_sha256":"3a4bb8c00cd879ab953bd7ce8adab78be5d8df3b6ff0be14e57635e62cad2ace"}}