{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IUYIQ3ZUPILVXEWWV4QQRGPPLU","short_pith_number":"pith:IUYIQ3ZU","canonical_record":{"source":{"id":"1506.01575","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-04T13:13:11Z","cross_cats_sorted":[],"title_canon_sha256":"1c8c97ae1fd00c7d891aa98f5f3ecd9824b2de21ed2101e13e0687373b57e70f","abstract_canon_sha256":"c5fb5be5fe0517553d60b5fe89785675b2009f51768f56f3b3357a1e1edbf929"},"schema_version":"1.0"},"canonical_sha256":"4530886f347a175b92d6af210899ef5d17c91f874e9c1985c5400f6137c10466","source":{"kind":"arxiv","id":"1506.01575","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.01575","created_at":"2026-05-18T01:31:02Z"},{"alias_kind":"arxiv_version","alias_value":"1506.01575v1","created_at":"2026-05-18T01:31:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.01575","created_at":"2026-05-18T01:31:02Z"},{"alias_kind":"pith_short_12","alias_value":"IUYIQ3ZUPILV","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IUYIQ3ZUPILVXEWW","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IUYIQ3ZU","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IUYIQ3ZUPILVXEWWV4QQRGPPLU","target":"record","payload":{"canonical_record":{"source":{"id":"1506.01575","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-04T13:13:11Z","cross_cats_sorted":[],"title_canon_sha256":"1c8c97ae1fd00c7d891aa98f5f3ecd9824b2de21ed2101e13e0687373b57e70f","abstract_canon_sha256":"c5fb5be5fe0517553d60b5fe89785675b2009f51768f56f3b3357a1e1edbf929"},"schema_version":"1.0"},"canonical_sha256":"4530886f347a175b92d6af210899ef5d17c91f874e9c1985c5400f6137c10466","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:02.671339Z","signature_b64":"r2U9BjgmrV/YEnwH1S5ljOGr611rTssRPLevnkwEtyWEc005CRV3bguFtI3vTBXe4rUHlkqU/VKlqlNYOHA5AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4530886f347a175b92d6af210899ef5d17c91f874e9c1985c5400f6137c10466","last_reissued_at":"2026-05-18T01:31:02.670863Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:02.670863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.01575","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":"2026-05-18T01:31:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NQySpkx0BHA1hm2oGXOEIHx5D9eD0AyNajgeIdezs7lS+6Wu0cD5KWbzHxqA/fQLq9DNl2uaILic0PXhHZ5fBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T21:07:18.630016Z"},"content_sha256":"9a5ed901c37774cf49e51643eac33a78495ac9625675e9815da81d33a394bcd1","schema_version":"1.0","event_id":"sha256:9a5ed901c37774cf49e51643eac33a78495ac9625675e9815da81d33a394bcd1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IUYIQ3ZUPILVXEWWV4QQRGPPLU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Manipulation of the spin helix in FeGe thin films and FeGe/Fe multilayers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Charles S. Spencer, Christian J. Kinane, Christopher H. Marrows, Nicholas A. Porter, Rowan C. Temple, Sean Langridge, Timothy R. Charlton","submitted_at":"2015-06-04T13:13:11Z","abstract_excerpt":"Magnetic materials without structural inversion symmetry can display the Dzyaloshinskii-Moriya interaction, which manifests itself as chiral magnetic ground states. These chiral states can interact in complex ways with applied fields and boundary conditions provided by finite sample sizes that are of the order of the lengthscale of the chiral states. Here we study epitaxial thin films of FeGe with a thickness close to the helix pitch of the helimagnetic ground state, which is about 70 nm, by conventional magnetometry and polarized neutron reflectometry. We show that the helix in an FeGe film r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.01575","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":"2026-05-18T01:31:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QJUIZcc/7+cI/rA148Jw+NfNC6qjEGS0CLkLbB05Zt7WaKuRZNFOhQyWgRdNyy1VwBjggtx9WJJ9LF1mJrchDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T21:07:18.630463Z"},"content_sha256":"8353c83e25db86d05747a1d84806ba8a17afffe9c57823dac8dce4cdb5bf63a5","schema_version":"1.0","event_id":"sha256:8353c83e25db86d05747a1d84806ba8a17afffe9c57823dac8dce4cdb5bf63a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IUYIQ3ZUPILVXEWWV4QQRGPPLU/bundle.json","state_url":"https://pith.science/pith/IUYIQ3ZUPILVXEWWV4QQRGPPLU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IUYIQ3ZUPILVXEWWV4QQRGPPLU/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":"2026-05-27T21:07:18Z","links":{"resolver":"https://pith.science/pith/IUYIQ3ZUPILVXEWWV4QQRGPPLU","bundle":"https://pith.science/pith/IUYIQ3ZUPILVXEWWV4QQRGPPLU/bundle.json","state":"https://pith.science/pith/IUYIQ3ZUPILVXEWWV4QQRGPPLU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IUYIQ3ZUPILVXEWWV4QQRGPPLU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IUYIQ3ZUPILVXEWWV4QQRGPPLU","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":"c5fb5be5fe0517553d60b5fe89785675b2009f51768f56f3b3357a1e1edbf929","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-04T13:13:11Z","title_canon_sha256":"1c8c97ae1fd00c7d891aa98f5f3ecd9824b2de21ed2101e13e0687373b57e70f"},"schema_version":"1.0","source":{"id":"1506.01575","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.01575","created_at":"2026-05-18T01:31:02Z"},{"alias_kind":"arxiv_version","alias_value":"1506.01575v1","created_at":"2026-05-18T01:31:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.01575","created_at":"2026-05-18T01:31:02Z"},{"alias_kind":"pith_short_12","alias_value":"IUYIQ3ZUPILV","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IUYIQ3ZUPILVXEWW","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IUYIQ3ZU","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:8353c83e25db86d05747a1d84806ba8a17afffe9c57823dac8dce4cdb5bf63a5","target":"graph","created_at":"2026-05-18T01:31:02Z","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":"Magnetic materials without structural inversion symmetry can display the Dzyaloshinskii-Moriya interaction, which manifests itself as chiral magnetic ground states. These chiral states can interact in complex ways with applied fields and boundary conditions provided by finite sample sizes that are of the order of the lengthscale of the chiral states. Here we study epitaxial thin films of FeGe with a thickness close to the helix pitch of the helimagnetic ground state, which is about 70 nm, by conventional magnetometry and polarized neutron reflectometry. We show that the helix in an FeGe film r","authors_text":"Charles S. Spencer, Christian J. Kinane, Christopher H. Marrows, Nicholas A. Porter, Rowan C. Temple, Sean Langridge, Timothy R. Charlton","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-04T13:13:11Z","title":"Manipulation of the spin helix in FeGe thin films and FeGe/Fe multilayers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.01575","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":"sha256:9a5ed901c37774cf49e51643eac33a78495ac9625675e9815da81d33a394bcd1","target":"record","created_at":"2026-05-18T01:31:02Z","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":"c5fb5be5fe0517553d60b5fe89785675b2009f51768f56f3b3357a1e1edbf929","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-04T13:13:11Z","title_canon_sha256":"1c8c97ae1fd00c7d891aa98f5f3ecd9824b2de21ed2101e13e0687373b57e70f"},"schema_version":"1.0","source":{"id":"1506.01575","kind":"arxiv","version":1}},"canonical_sha256":"4530886f347a175b92d6af210899ef5d17c91f874e9c1985c5400f6137c10466","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4530886f347a175b92d6af210899ef5d17c91f874e9c1985c5400f6137c10466","first_computed_at":"2026-05-18T01:31:02.670863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:02.670863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r2U9BjgmrV/YEnwH1S5ljOGr611rTssRPLevnkwEtyWEc005CRV3bguFtI3vTBXe4rUHlkqU/VKlqlNYOHA5AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:02.671339Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.01575","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a5ed901c37774cf49e51643eac33a78495ac9625675e9815da81d33a394bcd1","sha256:8353c83e25db86d05747a1d84806ba8a17afffe9c57823dac8dce4cdb5bf63a5"],"state_sha256":"3253cdbfe3f04f5efe66d7bf699a924c3903016b9efd4b9313cbe6040bfa739e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1PNz4ztvJNWjz5jgODX+HfsMiFaP/LwCbyAWA/hxuOnwpZUZRuVs4gFFrMsSBBUji3yagbm1Asf5EudnSlKWBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T21:07:18.633782Z","bundle_sha256":"5b17c76b0b90c378421130b90ce0e5c0864b695d01552b1ffb3f1a089e1835c0"}}