{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:S6J7A535DSM3LIJF2W4UV2WSQZ","short_pith_number":"pith:S6J7A535","canonical_record":{"source":{"id":"1903.00921","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-03T14:57:03Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"db42df5967f2fa199162ea8b79d7e7dcfe3fe87d22c3d01721342fca57053156","abstract_canon_sha256":"8508e9373c2509be258cee528dd4039c495c4efd487810bcbbe7c852481318b5"},"schema_version":"1.0"},"canonical_sha256":"9793f0777d1c99b5a125d5b94aead28668427390cc20b5834664cb76e299276a","source":{"kind":"arxiv","id":"1903.00921","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.00921","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"arxiv_version","alias_value":"1903.00921v2","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.00921","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"pith_short_12","alias_value":"S6J7A535DSM3","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"pith_short_16","alias_value":"S6J7A535DSM3LIJF","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"pith_short_8","alias_value":"S6J7A535","created_at":"2026-07-05T00:10:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:S6J7A535DSM3LIJF2W4UV2WSQZ","target":"record","payload":{"canonical_record":{"source":{"id":"1903.00921","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-03T14:57:03Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"db42df5967f2fa199162ea8b79d7e7dcfe3fe87d22c3d01721342fca57053156","abstract_canon_sha256":"8508e9373c2509be258cee528dd4039c495c4efd487810bcbbe7c852481318b5"},"schema_version":"1.0"},"canonical_sha256":"9793f0777d1c99b5a125d5b94aead28668427390cc20b5834664cb76e299276a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:10:00.526724Z","signature_b64":"9M56QIpdFaJ8kt17zOdac0wio4bTwKSmi/vN1HkC0XQokSnnmE4UFCQ2c0R1G0/HNWwdZ9gczbFHXCo7d9+hDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9793f0777d1c99b5a125d5b94aead28668427390cc20b5834664cb76e299276a","last_reissued_at":"2026-07-05T00:10:00.526251Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:10:00.526251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.00921","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":"2026-07-05T00:10:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/FmvLLrou1YkYCm4LAXBWoBnhN/WsjdSNJR4/uILvDsscl6A5HCv3LFOZyz+h75FXkbjJJqF4bzla1HSdAwdBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:22:53.176698Z"},"content_sha256":"686323f2953b607d81fb92034e9cc6f742d727ec1230af8ac437c9976f0f0556","schema_version":"1.0","event_id":"sha256:686323f2953b607d81fb92034e9cc6f742d727ec1230af8ac437c9976f0f0556"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:S6J7A535DSM3LIJF2W4UV2WSQZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chaos in Magnetic Nanocontact Vortex Oscillators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CD"],"primary_cat":"cond-mat.mes-hall","authors_text":"Claude Chappert, Damien Rontani, Jean-Paul Adam, J\\'er\\'emy L\\'etang, Joo-Von Kim, Karim Bouzehouane, Marc Sciamanna, Myoung-Woo Yoo, S\\'ebastien Petit-Watelot, St\\'ephane Andrieu, St\\'ephanie Girod, Thibaut Devolder, Vincent Cros","submitted_at":"2019-03-03T14:57:03Z","abstract_excerpt":"We present an experimental study of spin-torque driven vortex self-oscillations in magnetic nanocontacts. We find that above a certain threshold in applied currents, the vortex gyration around the nanocontact is modulated by relaxation oscillations, which involve periodic reversals of the vortex core. This modulation leads to the appearance of commensurate but also more interestingly here, incommensurate states, which are characterized by devil's staircases in the modulation frequency. We use frequency- and time-domain measurements together with advanced time-series analyses to provide experim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.00921","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1903.00921/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:10:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8pPvJqvZeIKaVGMCIXc53QhJSiJVVdzAXpqbye3LDWaGd9f+UjEOc8EqX7SqqwyWkq4pEF6UVAsT25JpBANaCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:22:53.177552Z"},"content_sha256":"98f2181bceb11543a0bcfbb2c0b69ff1a9778588f030a1955204fc55d29a3194","schema_version":"1.0","event_id":"sha256:98f2181bceb11543a0bcfbb2c0b69ff1a9778588f030a1955204fc55d29a3194"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S6J7A535DSM3LIJF2W4UV2WSQZ/bundle.json","state_url":"https://pith.science/pith/S6J7A535DSM3LIJF2W4UV2WSQZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S6J7A535DSM3LIJF2W4UV2WSQZ/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":"2026-08-04T07:22:53Z","links":{"resolver":"https://pith.science/pith/S6J7A535DSM3LIJF2W4UV2WSQZ","bundle":"https://pith.science/pith/S6J7A535DSM3LIJF2W4UV2WSQZ/bundle.json","state":"https://pith.science/pith/S6J7A535DSM3LIJF2W4UV2WSQZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S6J7A535DSM3LIJF2W4UV2WSQZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:S6J7A535DSM3LIJF2W4UV2WSQZ","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":"8508e9373c2509be258cee528dd4039c495c4efd487810bcbbe7c852481318b5","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-03T14:57:03Z","title_canon_sha256":"db42df5967f2fa199162ea8b79d7e7dcfe3fe87d22c3d01721342fca57053156"},"schema_version":"1.0","source":{"id":"1903.00921","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.00921","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"arxiv_version","alias_value":"1903.00921v2","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.00921","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"pith_short_12","alias_value":"S6J7A535DSM3","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"pith_short_16","alias_value":"S6J7A535DSM3LIJF","created_at":"2026-07-05T00:10:00Z"},{"alias_kind":"pith_short_8","alias_value":"S6J7A535","created_at":"2026-07-05T00:10:00Z"}],"graph_snapshots":[{"event_id":"sha256:98f2181bceb11543a0bcfbb2c0b69ff1a9778588f030a1955204fc55d29a3194","target":"graph","created_at":"2026-07-05T00:10:00Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1903.00921/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an experimental study of spin-torque driven vortex self-oscillations in magnetic nanocontacts. We find that above a certain threshold in applied currents, the vortex gyration around the nanocontact is modulated by relaxation oscillations, which involve periodic reversals of the vortex core. This modulation leads to the appearance of commensurate but also more interestingly here, incommensurate states, which are characterized by devil's staircases in the modulation frequency. We use frequency- and time-domain measurements together with advanced time-series analyses to provide experim","authors_text":"Claude Chappert, Damien Rontani, Jean-Paul Adam, J\\'er\\'emy L\\'etang, Joo-Von Kim, Karim Bouzehouane, Marc Sciamanna, Myoung-Woo Yoo, S\\'ebastien Petit-Watelot, St\\'ephane Andrieu, St\\'ephanie Girod, Thibaut Devolder, Vincent Cros","cross_cats":["nlin.CD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-03T14:57:03Z","title":"Chaos in Magnetic Nanocontact Vortex Oscillators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.00921","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":"sha256:686323f2953b607d81fb92034e9cc6f742d727ec1230af8ac437c9976f0f0556","target":"record","created_at":"2026-07-05T00:10:00Z","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":"8508e9373c2509be258cee528dd4039c495c4efd487810bcbbe7c852481318b5","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-03T14:57:03Z","title_canon_sha256":"db42df5967f2fa199162ea8b79d7e7dcfe3fe87d22c3d01721342fca57053156"},"schema_version":"1.0","source":{"id":"1903.00921","kind":"arxiv","version":2}},"canonical_sha256":"9793f0777d1c99b5a125d5b94aead28668427390cc20b5834664cb76e299276a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9793f0777d1c99b5a125d5b94aead28668427390cc20b5834664cb76e299276a","first_computed_at":"2026-07-05T00:10:00.526251Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:10:00.526251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9M56QIpdFaJ8kt17zOdac0wio4bTwKSmi/vN1HkC0XQokSnnmE4UFCQ2c0R1G0/HNWwdZ9gczbFHXCo7d9+hDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:10:00.526724Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.00921","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:686323f2953b607d81fb92034e9cc6f742d727ec1230af8ac437c9976f0f0556","sha256:98f2181bceb11543a0bcfbb2c0b69ff1a9778588f030a1955204fc55d29a3194"],"state_sha256":"4c7de57163dfd90976ad1fc557e95481bd3e9152d6a2492402164d1aa563e283"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fW4WFm3YAyMXIc9SPrR45WaeyKDkumFBFSHRou/oJe8W9625c+SjAJNA0baV9/5qanzkZ7FgEOvhesi5V/XpDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T07:22:53.182724Z","bundle_sha256":"3823140c9047ca1dbda64fcb887c88ec0472e6ecde6a16186bef72683d695227"}}