{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AX7LIXDFWDZPARINFZUXRB4YYS","short_pith_number":"pith:AX7LIXDF","canonical_record":{"source":{"id":"1806.06234","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-16T12:33:28Z","cross_cats_sorted":[],"title_canon_sha256":"d1f2488673b0f7fb73b46beab920987f20544acf789883b2c92c4264a2fa846e","abstract_canon_sha256":"cf763c5375e41a726a2589aa6867a6e86c450088a6d0c558faa37c57adb95256"},"schema_version":"1.0"},"canonical_sha256":"05feb45c65b0f2f0450d2e69788798c497a76176e4212e4fa027a73716215d28","source":{"kind":"arxiv","id":"1806.06234","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.06234","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"arxiv_version","alias_value":"1806.06234v1","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.06234","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"pith_short_12","alias_value":"AX7LIXDFWDZP","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AX7LIXDFWDZPARIN","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AX7LIXDF","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AX7LIXDFWDZPARINFZUXRB4YYS","target":"record","payload":{"canonical_record":{"source":{"id":"1806.06234","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-16T12:33:28Z","cross_cats_sorted":[],"title_canon_sha256":"d1f2488673b0f7fb73b46beab920987f20544acf789883b2c92c4264a2fa846e","abstract_canon_sha256":"cf763c5375e41a726a2589aa6867a6e86c450088a6d0c558faa37c57adb95256"},"schema_version":"1.0"},"canonical_sha256":"05feb45c65b0f2f0450d2e69788798c497a76176e4212e4fa027a73716215d28","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:01.554531Z","signature_b64":"ZRmanwE785EmCdqQePj7O/6DX/REE8W7oSHAz+MvcPdaCMtuckzTNYmDREemd8Eu1/zBNw67Fu3nt/0NmrTZDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"05feb45c65b0f2f0450d2e69788798c497a76176e4212e4fa027a73716215d28","last_reissued_at":"2026-05-18T00:06:01.554117Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:01.554117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.06234","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":"2026-05-18T00:06:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pnz7qnnuYdWRhdh8qYwu9VAitVVYhkqZABBPQUKk/yfdOXyZD3kQQYUDn2DmCM8yc+DGRVCB2CLEW8Pr5zMgAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:35:13.831652Z"},"content_sha256":"f42e9a1fe7d8ea991072e964d07ee27002c9b2efe39954177f3b4b6bcc521089","schema_version":"1.0","event_id":"sha256:f42e9a1fe7d8ea991072e964d07ee27002c9b2efe39954177f3b4b6bcc521089"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AX7LIXDFWDZPARINFZUXRB4YYS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First-principles prediction of sub-10 nm skyrmions in Pd/Fe bilayers on Rh(111)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Pavel F. Bessarab, Sebastian Meyer, Soumyajyoti Haldar, Stefan Heinze, Stephan von Malottki","submitted_at":"2018-06-16T12:33:28Z","abstract_excerpt":"We show that stable skyrmions with diameters of a few nanometers can emerge in atomic Pd/Fe bilayers on the Rh(111) surface. Based on density functional theory we calculate the exchange and the Dzyaloshinskii-Moriya interaction as well as the magnetocrystalline anisotropy energy. The later two terms are driven by spin-orbit coupling and significantly reduced compared to Pd/Fe bilayers on Ir(111) as expected since Rh and Ir are isoelectronic $4d$ and $5d$ transition-metals. However, there is still a spin spiral ground state at zero magnetic field. Atomistic spin dynamics simulations show that a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.06234","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":"2026-05-18T00:06:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dgP3TAa257FakOFoniIPY4WxRYBzAmxAHyDpVOe1vXp67BPwmU9Keq2dmawtFMAvvKb6pLpkq00JEdgPjMPZCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:35:13.832374Z"},"content_sha256":"612c48898e688e78c22d0060011f8cb852f118d27979b4963737d2d4ebf71a40","schema_version":"1.0","event_id":"sha256:612c48898e688e78c22d0060011f8cb852f118d27979b4963737d2d4ebf71a40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AX7LIXDFWDZPARINFZUXRB4YYS/bundle.json","state_url":"https://pith.science/pith/AX7LIXDFWDZPARINFZUXRB4YYS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AX7LIXDFWDZPARINFZUXRB4YYS/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":"2026-05-26T14:35:13Z","links":{"resolver":"https://pith.science/pith/AX7LIXDFWDZPARINFZUXRB4YYS","bundle":"https://pith.science/pith/AX7LIXDFWDZPARINFZUXRB4YYS/bundle.json","state":"https://pith.science/pith/AX7LIXDFWDZPARINFZUXRB4YYS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AX7LIXDFWDZPARINFZUXRB4YYS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AX7LIXDFWDZPARINFZUXRB4YYS","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":"cf763c5375e41a726a2589aa6867a6e86c450088a6d0c558faa37c57adb95256","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-16T12:33:28Z","title_canon_sha256":"d1f2488673b0f7fb73b46beab920987f20544acf789883b2c92c4264a2fa846e"},"schema_version":"1.0","source":{"id":"1806.06234","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.06234","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"arxiv_version","alias_value":"1806.06234v1","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.06234","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"pith_short_12","alias_value":"AX7LIXDFWDZP","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AX7LIXDFWDZPARIN","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AX7LIXDF","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:612c48898e688e78c22d0060011f8cb852f118d27979b4963737d2d4ebf71a40","target":"graph","created_at":"2026-05-18T00:06:01Z","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 show that stable skyrmions with diameters of a few nanometers can emerge in atomic Pd/Fe bilayers on the Rh(111) surface. Based on density functional theory we calculate the exchange and the Dzyaloshinskii-Moriya interaction as well as the magnetocrystalline anisotropy energy. The later two terms are driven by spin-orbit coupling and significantly reduced compared to Pd/Fe bilayers on Ir(111) as expected since Rh and Ir are isoelectronic $4d$ and $5d$ transition-metals. However, there is still a spin spiral ground state at zero magnetic field. Atomistic spin dynamics simulations show that a","authors_text":"Pavel F. Bessarab, Sebastian Meyer, Soumyajyoti Haldar, Stefan Heinze, Stephan von Malottki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-16T12:33:28Z","title":"First-principles prediction of sub-10 nm skyrmions in Pd/Fe bilayers on Rh(111)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.06234","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:f42e9a1fe7d8ea991072e964d07ee27002c9b2efe39954177f3b4b6bcc521089","target":"record","created_at":"2026-05-18T00:06:01Z","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":"cf763c5375e41a726a2589aa6867a6e86c450088a6d0c558faa37c57adb95256","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-16T12:33:28Z","title_canon_sha256":"d1f2488673b0f7fb73b46beab920987f20544acf789883b2c92c4264a2fa846e"},"schema_version":"1.0","source":{"id":"1806.06234","kind":"arxiv","version":1}},"canonical_sha256":"05feb45c65b0f2f0450d2e69788798c497a76176e4212e4fa027a73716215d28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"05feb45c65b0f2f0450d2e69788798c497a76176e4212e4fa027a73716215d28","first_computed_at":"2026-05-18T00:06:01.554117Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:01.554117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZRmanwE785EmCdqQePj7O/6DX/REE8W7oSHAz+MvcPdaCMtuckzTNYmDREemd8Eu1/zBNw67Fu3nt/0NmrTZDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:01.554531Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.06234","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f42e9a1fe7d8ea991072e964d07ee27002c9b2efe39954177f3b4b6bcc521089","sha256:612c48898e688e78c22d0060011f8cb852f118d27979b4963737d2d4ebf71a40"],"state_sha256":"d65fda9d6ef339a56eaa788f65382b09d97cda445582685745c7d695ea45c923"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+VzGBNMwr2M4AKtHBrj3+0erAsYf1fJiFjT8sxwttWUqSmasHzvpFwTHXmXA71FN55jg/F/Ljq1BS5LPHY31DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T14:35:13.836473Z","bundle_sha256":"c674f2d722cfdda7e1ee185013e870f3070120869a6bee2ca841f6e04669f9e9"}}