{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:K6ZQHREJWDGDNB35MVZ63HFGEK","short_pith_number":"pith:K6ZQHREJ","canonical_record":{"source":{"id":"1809.07149","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-19T12:42:48Z","cross_cats_sorted":[],"title_canon_sha256":"2f6f8476e5aef1834602478a6fcc946034ac9ebb765fe6727c51ea855c89adc5","abstract_canon_sha256":"9699acc7fb5c3f47a7f262f3841f1717ecb4df4f061f2961acc5213f19b6240e"},"schema_version":"1.0"},"canonical_sha256":"57b303c489b0cc36877d6573ed9ca622a4dc1e19991baa0299f02963cb7bea32","source":{"kind":"arxiv","id":"1809.07149","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.07149","created_at":"2026-05-17T23:52:52Z"},{"alias_kind":"arxiv_version","alias_value":"1809.07149v2","created_at":"2026-05-17T23:52:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.07149","created_at":"2026-05-17T23:52:52Z"},{"alias_kind":"pith_short_12","alias_value":"K6ZQHREJWDGD","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K6ZQHREJWDGDNB35","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K6ZQHREJ","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:K6ZQHREJWDGDNB35MVZ63HFGEK","target":"record","payload":{"canonical_record":{"source":{"id":"1809.07149","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-19T12:42:48Z","cross_cats_sorted":[],"title_canon_sha256":"2f6f8476e5aef1834602478a6fcc946034ac9ebb765fe6727c51ea855c89adc5","abstract_canon_sha256":"9699acc7fb5c3f47a7f262f3841f1717ecb4df4f061f2961acc5213f19b6240e"},"schema_version":"1.0"},"canonical_sha256":"57b303c489b0cc36877d6573ed9ca622a4dc1e19991baa0299f02963cb7bea32","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:52.199843Z","signature_b64":"6FdmpetBPTxJaNADynn4eXFsBINri5CREmf0zRnDylG+2LumbhKY0qERguaznflWYGkc6wtid9e4i9yN9sv2Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57b303c489b0cc36877d6573ed9ca622a4dc1e19991baa0299f02963cb7bea32","last_reissued_at":"2026-05-17T23:52:52.199097Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:52.199097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.07149","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:52:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pluOGgVltGAp+P1xTvuQC4WqOKRd3UXjbSvPPZ8ohKYkMsdPNcf22Ah2x90T9M0T/SPLko8kqHAAriuwpZM0Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T02:08:29.738457Z"},"content_sha256":"67f3118319792f909aff446b38345d1c1ca8a8ce28db49768121566072b4994a","schema_version":"1.0","event_id":"sha256:67f3118319792f909aff446b38345d1c1ca8a8ce28db49768121566072b4994a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:K6ZQHREJWDGDNB35MVZ63HFGEK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generation of magnetic skyrmions through pinning effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Ji-Chong Yang, Qing-Qing Mao, Yu Shi","submitted_at":"2018-09-19T12:42:48Z","abstract_excerpt":"Based on analytical estimation and lattice simulation, a proposal is made that magnetic skyrmions can be generated through the pinning effect in 2D chiral magnetic materials, in absence of an external magnetic field or magnetic anisotropy. In our simulation, stable magnetic skyrmions can be generated in the pinning areas. The properties of the skyrmions are studied for various values of ferromagnetic exchange strength and the Dzyaloshinskii-Moriya interaction strength."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07149","kind":"arxiv","version":2},"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":"2026-05-17T23:52:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pH1Ey8UvNwm/upMybJYIxkSYgRen4cwxop0QjwvBDntHVoMDtjAqXRo3To2NEgMwJw12yyzBIljylsMRgzmeBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T02:08:29.739101Z"},"content_sha256":"9cf9289ef21f4401d30f85724370b39f934c757b1daf0ba99ab7533b2ce180e8","schema_version":"1.0","event_id":"sha256:9cf9289ef21f4401d30f85724370b39f934c757b1daf0ba99ab7533b2ce180e8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K6ZQHREJWDGDNB35MVZ63HFGEK/bundle.json","state_url":"https://pith.science/pith/K6ZQHREJWDGDNB35MVZ63HFGEK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K6ZQHREJWDGDNB35MVZ63HFGEK/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":"2026-05-24T02:08:29Z","links":{"resolver":"https://pith.science/pith/K6ZQHREJWDGDNB35MVZ63HFGEK","bundle":"https://pith.science/pith/K6ZQHREJWDGDNB35MVZ63HFGEK/bundle.json","state":"https://pith.science/pith/K6ZQHREJWDGDNB35MVZ63HFGEK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K6ZQHREJWDGDNB35MVZ63HFGEK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:K6ZQHREJWDGDNB35MVZ63HFGEK","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":"9699acc7fb5c3f47a7f262f3841f1717ecb4df4f061f2961acc5213f19b6240e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-19T12:42:48Z","title_canon_sha256":"2f6f8476e5aef1834602478a6fcc946034ac9ebb765fe6727c51ea855c89adc5"},"schema_version":"1.0","source":{"id":"1809.07149","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.07149","created_at":"2026-05-17T23:52:52Z"},{"alias_kind":"arxiv_version","alias_value":"1809.07149v2","created_at":"2026-05-17T23:52:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.07149","created_at":"2026-05-17T23:52:52Z"},{"alias_kind":"pith_short_12","alias_value":"K6ZQHREJWDGD","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K6ZQHREJWDGDNB35","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K6ZQHREJ","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:9cf9289ef21f4401d30f85724370b39f934c757b1daf0ba99ab7533b2ce180e8","target":"graph","created_at":"2026-05-17T23:52:52Z","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":"Based on analytical estimation and lattice simulation, a proposal is made that magnetic skyrmions can be generated through the pinning effect in 2D chiral magnetic materials, in absence of an external magnetic field or magnetic anisotropy. In our simulation, stable magnetic skyrmions can be generated in the pinning areas. The properties of the skyrmions are studied for various values of ferromagnetic exchange strength and the Dzyaloshinskii-Moriya interaction strength.","authors_text":"Ji-Chong Yang, Qing-Qing Mao, Yu Shi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-19T12:42:48Z","title":"Generation of magnetic skyrmions through pinning effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07149","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":"sha256:67f3118319792f909aff446b38345d1c1ca8a8ce28db49768121566072b4994a","target":"record","created_at":"2026-05-17T23:52:52Z","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":"9699acc7fb5c3f47a7f262f3841f1717ecb4df4f061f2961acc5213f19b6240e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-19T12:42:48Z","title_canon_sha256":"2f6f8476e5aef1834602478a6fcc946034ac9ebb765fe6727c51ea855c89adc5"},"schema_version":"1.0","source":{"id":"1809.07149","kind":"arxiv","version":2}},"canonical_sha256":"57b303c489b0cc36877d6573ed9ca622a4dc1e19991baa0299f02963cb7bea32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57b303c489b0cc36877d6573ed9ca622a4dc1e19991baa0299f02963cb7bea32","first_computed_at":"2026-05-17T23:52:52.199097Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:52.199097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6FdmpetBPTxJaNADynn4eXFsBINri5CREmf0zRnDylG+2LumbhKY0qERguaznflWYGkc6wtid9e4i9yN9sv2Ag==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:52.199843Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.07149","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67f3118319792f909aff446b38345d1c1ca8a8ce28db49768121566072b4994a","sha256:9cf9289ef21f4401d30f85724370b39f934c757b1daf0ba99ab7533b2ce180e8"],"state_sha256":"cce704eee3e3a10382b2a552dbac059f2546d2c45d0aeeeb5a1ecc62a8eb8247"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dynT1kNx083sLNwEAFQcYVF4anlJ4pSljjjk9G6IwFteQP6XnGKRPej7yUgqsB+KiGvlrGYiz8z3wbfItxx/AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T02:08:29.742406Z","bundle_sha256":"51bf2acdbbe9cb7735a34d66abf1895e35d8f7f07e16c0452e9d089a8b5d9caa"}}