{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:554D2SZP3GHOQ7ASJV2K6LGYI7","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":"64944fa479195303a16d9060040c4be8bf086847984149d27d87002bf48f7325","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-09T08:50:50Z","title_canon_sha256":"d925480f4896d8d9af95eb64ae45bde9a4195e3aa952611d7683e9915f6b3a1b"},"schema_version":"1.0","source":{"id":"1507.02418","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.02418","created_at":"2026-05-18T01:33:51Z"},{"alias_kind":"arxiv_version","alias_value":"1507.02418v2","created_at":"2026-05-18T01:33:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.02418","created_at":"2026-05-18T01:33:51Z"},{"alias_kind":"pith_short_12","alias_value":"554D2SZP3GHO","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"554D2SZP3GHOQ7AS","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"554D2SZP","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:1d0216a0226dbf42dd92eea94147f11de5f0c4772c4f9381a876dc59e74818c4","target":"graph","created_at":"2026-05-18T01:33:51Z","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"},"paper":{"abstract_excerpt":"Inspired by recent experimental realizations of two-dimensional (2D) metals and alloys, we theoretically investigate the stability and electronic properties of monolayer (ML) Fe-C compounds and pure Fe. According to our and others theoretical results, the experiment [Science 343, 1228 (2014)] proposed ML pure Fe square-lattices embedded in graphene (Gr) pores are energetically unstable compared to that of the Fe triangular-lattices in Gr. To solve the above contradiction, we search for the stable structures of ML Fe-C with various Fe to C ratios (as a generalization of ML Fe in Gr) using ab in","authors_text":"Rui Pang, Xingqiang Shi, Yangfan Shao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-09T08:50:50Z","title":"Stability of Two-Dimensional Iron-Carbides Suspended across Graphene Pores: First-principles Particle Swarm Optimization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.02418","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:dac5d03fb35dff34e2792104ccdcf56a0c1d330b38c2a924a2cd7be97fd599c5","target":"record","created_at":"2026-05-18T01:33:51Z","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":"64944fa479195303a16d9060040c4be8bf086847984149d27d87002bf48f7325","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-09T08:50:50Z","title_canon_sha256":"d925480f4896d8d9af95eb64ae45bde9a4195e3aa952611d7683e9915f6b3a1b"},"schema_version":"1.0","source":{"id":"1507.02418","kind":"arxiv","version":2}},"canonical_sha256":"ef783d4b2fd98ee87c124d74af2cd847e458afad18fcf2bf8aba9e169a45fdbc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef783d4b2fd98ee87c124d74af2cd847e458afad18fcf2bf8aba9e169a45fdbc","first_computed_at":"2026-05-18T01:33:51.382809Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:51.382809Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vSepRHU5xmnAcu9WJIe86mfBrnzbRh9oIXEkUp9A4GLcGctZseJB1ab6Als/IFGmZyaq3qDQPNdrzWGlHeCCCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:51.383346Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.02418","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dac5d03fb35dff34e2792104ccdcf56a0c1d330b38c2a924a2cd7be97fd599c5","sha256:1d0216a0226dbf42dd92eea94147f11de5f0c4772c4f9381a876dc59e74818c4"],"state_sha256":"50d5158c653a155cfe23cc1b6a052e3335f21b2769f93aaa099337ec17fea754"}