{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:7CXVKFKPOJANK56YYCA4SEWUHQ","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":"b807e0e193c95bc84f04af59833b7041556400371ee5b89c230ac66e236712ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-08-02T05:41:01Z","title_canon_sha256":"3e23db429bcdd19cccc97dc6734012eca957c0dcca10e970cce41ebc64fe941f"},"schema_version":"1.0","source":{"id":"1308.0412","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0412","created_at":"2026-05-18T03:16:05Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0412v2","created_at":"2026-05-18T03:16:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0412","created_at":"2026-05-18T03:16:05Z"},{"alias_kind":"pith_short_12","alias_value":"7CXVKFKPOJAN","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"7CXVKFKPOJANK56Y","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"7CXVKFKP","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:da6463591717a6723827e4e16b83ae7eb1d89ec75c2746c3f1530eeb39d81e3a","target":"graph","created_at":"2026-05-18T03:16:05Z","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 by micromagnetic simulations that spontaneous skyrmion ground state can exist in Co/Ru/Co nanodisks without the Dzyaloshinsky-Moriya interaction (DMI), which can remain stable in the applied magnetic field along +z direction even up to 0.44 T. The guiding center ($R_x$,$R_y$) of skyrmion defined by the moments of the topological density presents a novel gyration with a star-like trajectory in a pulsed magnetic field and a hexagonal trajectory after the field is switched off, which is different from that of vortex or bubble. One of the coupled skyrmions could move without an external ma","authors_text":"Han Wang, Peng Tao, Teng Yang, Weijun Ren, Yingying Dai, Zhidong Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-08-02T05:41:01Z","title":"Skyrmion ground state and gyration of skyrmions in magnetic nanodisks without the Dzyaloshinsky-Moriya interaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0412","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":"sha256:0532e2604c0312c6f8dc019df9f40338ed84e877dbcc74ad4537e3b33da10ed5","target":"record","created_at":"2026-05-18T03:16:05Z","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":"b807e0e193c95bc84f04af59833b7041556400371ee5b89c230ac66e236712ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-08-02T05:41:01Z","title_canon_sha256":"3e23db429bcdd19cccc97dc6734012eca957c0dcca10e970cce41ebc64fe941f"},"schema_version":"1.0","source":{"id":"1308.0412","kind":"arxiv","version":2}},"canonical_sha256":"f8af55154f7240d577d8c081c912d43c3e8bc1ae707e9ae38c5efa5ec5819cfa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8af55154f7240d577d8c081c912d43c3e8bc1ae707e9ae38c5efa5ec5819cfa","first_computed_at":"2026-05-18T03:16:05.559892Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:05.559892Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lF8LWRxkYZ9Bb4TtILwj6aJRl0RpjxE1GAkEfUxBWrrRPXW3vtjfNy0yj+TfiJuAs1L+ZHdJANOAoxVwtIyMAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:05.560409Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.0412","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0532e2604c0312c6f8dc019df9f40338ed84e877dbcc74ad4537e3b33da10ed5","sha256:da6463591717a6723827e4e16b83ae7eb1d89ec75c2746c3f1530eeb39d81e3a"],"state_sha256":"fbde8fad14d7b0ed37155943918f036c2f581cdfff98f12cb4679f8c51960694"}