{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2JRG32ZSS45AMY7LX27MFRTUYW","short_pith_number":"pith:2JRG32ZS","canonical_record":{"source":{"id":"1806.11339","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-29T10:37:59Z","cross_cats_sorted":[],"title_canon_sha256":"b0ed0554a1ff40e6ea9121feb45fa90236dbcd3158b0c987ab1eabf233e37d2c","abstract_canon_sha256":"6d53692c96fad6a13fb8d4f78122466c58a23a7e28479a389a0e98ad51704603"},"schema_version":"1.0"},"canonical_sha256":"d2626deb32973a0663ebbebec2c674c5948620e26da8eaa549283447891c4f7f","source":{"kind":"arxiv","id":"1806.11339","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.11339","created_at":"2026-05-17T23:58:04Z"},{"alias_kind":"arxiv_version","alias_value":"1806.11339v1","created_at":"2026-05-17T23:58:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.11339","created_at":"2026-05-17T23:58:04Z"},{"alias_kind":"pith_short_12","alias_value":"2JRG32ZSS45A","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2JRG32ZSS45AMY7L","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2JRG32ZS","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2JRG32ZSS45AMY7LX27MFRTUYW","target":"record","payload":{"canonical_record":{"source":{"id":"1806.11339","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-29T10:37:59Z","cross_cats_sorted":[],"title_canon_sha256":"b0ed0554a1ff40e6ea9121feb45fa90236dbcd3158b0c987ab1eabf233e37d2c","abstract_canon_sha256":"6d53692c96fad6a13fb8d4f78122466c58a23a7e28479a389a0e98ad51704603"},"schema_version":"1.0"},"canonical_sha256":"d2626deb32973a0663ebbebec2c674c5948620e26da8eaa549283447891c4f7f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:04.589859Z","signature_b64":"DgMklHRkvBz6eMsOkLWh98LbR1AoBvJTy9q/ITAGYG79xXOKPUe7jB7izcJTSQ9jTFurRzLqpE9WC1AdG9wbBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2626deb32973a0663ebbebec2c674c5948620e26da8eaa549283447891c4f7f","last_reissued_at":"2026-05-17T23:58:04.589456Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:04.589456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.11339","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":"2026-05-17T23:58:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BEssPmywfhQQ2M4RNATbk7eqgoBLX0+sF3CxqJvTEJOAeyN2Ke1mnasIcWJ7R/OJGp5u3nusdMFAuqD2UehlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:00:45.159651Z"},"content_sha256":"9565519749628422beb9a990251b0d8e826445c0547063b04d642c7cb69f5d52","schema_version":"1.0","event_id":"sha256:9565519749628422beb9a990251b0d8e826445c0547063b04d642c7cb69f5d52"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2JRG32ZSS45AMY7LX27MFRTUYW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stability and magnetic properties of Fe double-layers on Ir (111)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Bertrand Dup\\'e, Jairo Sinova, Melanie Dup\\'e, Stefan Heinze","submitted_at":"2018-06-29T10:37:59Z","abstract_excerpt":"We investigate the interplay between the structural reconstruction and the magnetic properties of Fe doublelayers on Ir (111)-substrate using first-principles calculations based on density functional theory and mapping of the total energies on an atomistic spin model. We show that, if a second Fe monolayer is deposited on Fe/Ir (111), the stacking may change from hexagonal close-packed to bcc (110)-like accompanied by a reduction of symmetry from trigonal to centered rectangular. Although the bcc-like surface has a lower coordination, we find that this is the structural ground state. This reco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.11339","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":""},"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":"2026-05-17T23:58:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l4UKLia7wiMwojCaDDa/GQxjw3RmJhJohRj2lfQH/yMMcugiftT/ngm2ynr7O6RCnofGsZ3FsbECu+et6ovMAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:00:45.160031Z"},"content_sha256":"a97ea24d2c8f64a3a8983c7141c6f687d1d2c05002de0449d5caafe4feaa03fc","schema_version":"1.0","event_id":"sha256:a97ea24d2c8f64a3a8983c7141c6f687d1d2c05002de0449d5caafe4feaa03fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2JRG32ZSS45AMY7LX27MFRTUYW/bundle.json","state_url":"https://pith.science/pith/2JRG32ZSS45AMY7LX27MFRTUYW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2JRG32ZSS45AMY7LX27MFRTUYW/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":"2026-05-26T11:00:45Z","links":{"resolver":"https://pith.science/pith/2JRG32ZSS45AMY7LX27MFRTUYW","bundle":"https://pith.science/pith/2JRG32ZSS45AMY7LX27MFRTUYW/bundle.json","state":"https://pith.science/pith/2JRG32ZSS45AMY7LX27MFRTUYW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2JRG32ZSS45AMY7LX27MFRTUYW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2JRG32ZSS45AMY7LX27MFRTUYW","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":"6d53692c96fad6a13fb8d4f78122466c58a23a7e28479a389a0e98ad51704603","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-29T10:37:59Z","title_canon_sha256":"b0ed0554a1ff40e6ea9121feb45fa90236dbcd3158b0c987ab1eabf233e37d2c"},"schema_version":"1.0","source":{"id":"1806.11339","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.11339","created_at":"2026-05-17T23:58:04Z"},{"alias_kind":"arxiv_version","alias_value":"1806.11339v1","created_at":"2026-05-17T23:58:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.11339","created_at":"2026-05-17T23:58:04Z"},{"alias_kind":"pith_short_12","alias_value":"2JRG32ZSS45A","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2JRG32ZSS45AMY7L","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2JRG32ZS","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:a97ea24d2c8f64a3a8983c7141c6f687d1d2c05002de0449d5caafe4feaa03fc","target":"graph","created_at":"2026-05-17T23:58:04Z","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":"We investigate the interplay between the structural reconstruction and the magnetic properties of Fe doublelayers on Ir (111)-substrate using first-principles calculations based on density functional theory and mapping of the total energies on an atomistic spin model. We show that, if a second Fe monolayer is deposited on Fe/Ir (111), the stacking may change from hexagonal close-packed to bcc (110)-like accompanied by a reduction of symmetry from trigonal to centered rectangular. Although the bcc-like surface has a lower coordination, we find that this is the structural ground state. This reco","authors_text":"Bertrand Dup\\'e, Jairo Sinova, Melanie Dup\\'e, Stefan Heinze","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-29T10:37:59Z","title":"Stability and magnetic properties of Fe double-layers on Ir (111)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.11339","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":"sha256:9565519749628422beb9a990251b0d8e826445c0547063b04d642c7cb69f5d52","target":"record","created_at":"2026-05-17T23:58:04Z","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":"6d53692c96fad6a13fb8d4f78122466c58a23a7e28479a389a0e98ad51704603","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-29T10:37:59Z","title_canon_sha256":"b0ed0554a1ff40e6ea9121feb45fa90236dbcd3158b0c987ab1eabf233e37d2c"},"schema_version":"1.0","source":{"id":"1806.11339","kind":"arxiv","version":1}},"canonical_sha256":"d2626deb32973a0663ebbebec2c674c5948620e26da8eaa549283447891c4f7f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2626deb32973a0663ebbebec2c674c5948620e26da8eaa549283447891c4f7f","first_computed_at":"2026-05-17T23:58:04.589456Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:04.589456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DgMklHRkvBz6eMsOkLWh98LbR1AoBvJTy9q/ITAGYG79xXOKPUe7jB7izcJTSQ9jTFurRzLqpE9WC1AdG9wbBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:04.589859Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.11339","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9565519749628422beb9a990251b0d8e826445c0547063b04d642c7cb69f5d52","sha256:a97ea24d2c8f64a3a8983c7141c6f687d1d2c05002de0449d5caafe4feaa03fc"],"state_sha256":"e7ddc1df661f8ed06e0ebc76dc6182ccecd27b3d01ec17545996a678d8d2b90e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QK/LCXK/pq3lqINQQPBOwk1nWpfbAKQ4+zOMlQ17rX6W7tIWF4r3KlQsQaf+aF8XcmICPkH1lJsfYHpoex6DCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T11:00:45.163166Z","bundle_sha256":"61121054d21cfbdd45a656596fff4c33e368e3935c5f59c4f2838538b36e6c25"}}