{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:G5THKPKOFPQH6N2VAAVXI2KUCE","short_pith_number":"pith:G5THKPKO","canonical_record":{"source":{"id":"2302.08020","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-02-16T01:40:20Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"bbc78ab785de93187f5ef03580042e264c7528836fb4c1542efe880d6c8d6d0a","abstract_canon_sha256":"2211199334cfba11c2324ce572b44e1fffa759aecf23f3b8dac072a978882aee"},"schema_version":"1.0"},"canonical_sha256":"3766753d4e2be07f3755002b746954113b0e2d598e97362f5e87d7da2cd52760","source":{"kind":"arxiv","id":"2302.08020","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.08020","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"arxiv_version","alias_value":"2302.08020v1","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.08020","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"pith_short_12","alias_value":"G5THKPKOFPQH","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"pith_short_16","alias_value":"G5THKPKOFPQH6N2V","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"pith_short_8","alias_value":"G5THKPKO","created_at":"2026-07-05T08:20:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:G5THKPKOFPQH6N2VAAVXI2KUCE","target":"record","payload":{"canonical_record":{"source":{"id":"2302.08020","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-02-16T01:40:20Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"bbc78ab785de93187f5ef03580042e264c7528836fb4c1542efe880d6c8d6d0a","abstract_canon_sha256":"2211199334cfba11c2324ce572b44e1fffa759aecf23f3b8dac072a978882aee"},"schema_version":"1.0"},"canonical_sha256":"3766753d4e2be07f3755002b746954113b0e2d598e97362f5e87d7da2cd52760","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:20:06.473555Z","signature_b64":"dAOwOgklYgy6jBxwzgHi2pHq0XMgPx3+kypDDXHS98HokSPFOB7DtQyZauM8hVGJLIqQU+1ZKEB8sKglFNBqCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3766753d4e2be07f3755002b746954113b0e2d598e97362f5e87d7da2cd52760","last_reissued_at":"2026-07-05T08:20:06.473064Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:20:06.473064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.08020","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":"2026-07-05T08:20:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Rr8D7qfUCaV5L7RAObAGtD9IDqcRxV5kdwZPxXNtIjFRTAonMBBxWR1BhM7rAV1A2eoqYRwhrpffFutHzveBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T04:10:56.462427Z"},"content_sha256":"b5737929f1d4e23dc86f3e488dfc0552eeea7c480bdf8b7f6f498dc483962b00","schema_version":"1.0","event_id":"sha256:b5737929f1d4e23dc86f3e488dfc0552eeea7c480bdf8b7f6f498dc483962b00"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:G5THKPKOFPQH6N2VAAVXI2KUCE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"All-Electrical Skyrmionic Bits in a Chiral Magnetic Tunnel Junction","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Alexander K. J. Toh, Anjan Soumyanarayanan, Hang Khume Tan, Hong Jing Chung, Hui Ru Tan, Idayu Lim, James Lourembam, Jifei Huang, Jing Zhou, Pin Ho, Royston J. J. Lim, Shaohai Chen, Sherry K. L. Yap, Sze Ter Lim, T. S. Suraj, Xiaoye Chen, Yeow Teck Toh","submitted_at":"2023-02-16T01:40:20Z","abstract_excerpt":"Topological spin textures such as magnetic skyrmions hold considerable promise as robust, nanometre-scale, mobile bits for sustainable computing. A longstanding roadblock to unleashing their potential is the absence of a device enabling deterministic electrical readout of individual spin textures. Here we present the wafer-scale realization of a nanoscale chiral magnetic tunnel junction (MTJ) hosting a single, ambient skyrmion. Using a suite of electrical and multi-modal imaging techniques, we show that the MTJ nucleates skyrmions of fixed polarity, whose large readout signal - 20-70% relative"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.08020","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2302.08020/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":"2026-07-05T08:20:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8hEhw8zjXGD8oCoq6p2MIa/8NR+Ue4sDTEt2OUgaO+8OItYXAAut/gritjkR9b+Fxk+H8dxaGjlWu5eupj+BBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T04:10:56.462945Z"},"content_sha256":"1b32852b53847ea6f999da73e58e63fd048080a6ac3da06841ca35d2b453c23d","schema_version":"1.0","event_id":"sha256:1b32852b53847ea6f999da73e58e63fd048080a6ac3da06841ca35d2b453c23d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G5THKPKOFPQH6N2VAAVXI2KUCE/bundle.json","state_url":"https://pith.science/pith/G5THKPKOFPQH6N2VAAVXI2KUCE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G5THKPKOFPQH6N2VAAVXI2KUCE/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":"2026-08-15T04:10:56Z","links":{"resolver":"https://pith.science/pith/G5THKPKOFPQH6N2VAAVXI2KUCE","bundle":"https://pith.science/pith/G5THKPKOFPQH6N2VAAVXI2KUCE/bundle.json","state":"https://pith.science/pith/G5THKPKOFPQH6N2VAAVXI2KUCE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G5THKPKOFPQH6N2VAAVXI2KUCE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:G5THKPKOFPQH6N2VAAVXI2KUCE","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":"2211199334cfba11c2324ce572b44e1fffa759aecf23f3b8dac072a978882aee","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-02-16T01:40:20Z","title_canon_sha256":"bbc78ab785de93187f5ef03580042e264c7528836fb4c1542efe880d6c8d6d0a"},"schema_version":"1.0","source":{"id":"2302.08020","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.08020","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"arxiv_version","alias_value":"2302.08020v1","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.08020","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"pith_short_12","alias_value":"G5THKPKOFPQH","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"pith_short_16","alias_value":"G5THKPKOFPQH6N2V","created_at":"2026-07-05T08:20:06Z"},{"alias_kind":"pith_short_8","alias_value":"G5THKPKO","created_at":"2026-07-05T08:20:06Z"}],"graph_snapshots":[{"event_id":"sha256:1b32852b53847ea6f999da73e58e63fd048080a6ac3da06841ca35d2b453c23d","target":"graph","created_at":"2026-07-05T08:20:06Z","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/2302.08020/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Topological spin textures such as magnetic skyrmions hold considerable promise as robust, nanometre-scale, mobile bits for sustainable computing. A longstanding roadblock to unleashing their potential is the absence of a device enabling deterministic electrical readout of individual spin textures. Here we present the wafer-scale realization of a nanoscale chiral magnetic tunnel junction (MTJ) hosting a single, ambient skyrmion. Using a suite of electrical and multi-modal imaging techniques, we show that the MTJ nucleates skyrmions of fixed polarity, whose large readout signal - 20-70% relative","authors_text":"Alexander K. J. Toh, Anjan Soumyanarayanan, Hang Khume Tan, Hong Jing Chung, Hui Ru Tan, Idayu Lim, James Lourembam, Jifei Huang, Jing Zhou, Pin Ho, Royston J. J. Lim, Shaohai Chen, Sherry K. L. Yap, Sze Ter Lim, T. S. Suraj, Xiaoye Chen, Yeow Teck Toh","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-02-16T01:40:20Z","title":"All-Electrical Skyrmionic Bits in a Chiral Magnetic Tunnel Junction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.08020","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:b5737929f1d4e23dc86f3e488dfc0552eeea7c480bdf8b7f6f498dc483962b00","target":"record","created_at":"2026-07-05T08:20:06Z","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":"2211199334cfba11c2324ce572b44e1fffa759aecf23f3b8dac072a978882aee","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-02-16T01:40:20Z","title_canon_sha256":"bbc78ab785de93187f5ef03580042e264c7528836fb4c1542efe880d6c8d6d0a"},"schema_version":"1.0","source":{"id":"2302.08020","kind":"arxiv","version":1}},"canonical_sha256":"3766753d4e2be07f3755002b746954113b0e2d598e97362f5e87d7da2cd52760","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3766753d4e2be07f3755002b746954113b0e2d598e97362f5e87d7da2cd52760","first_computed_at":"2026-07-05T08:20:06.473064Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:20:06.473064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dAOwOgklYgy6jBxwzgHi2pHq0XMgPx3+kypDDXHS98HokSPFOB7DtQyZauM8hVGJLIqQU+1ZKEB8sKglFNBqCA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:20:06.473555Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.08020","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5737929f1d4e23dc86f3e488dfc0552eeea7c480bdf8b7f6f498dc483962b00","sha256:1b32852b53847ea6f999da73e58e63fd048080a6ac3da06841ca35d2b453c23d"],"state_sha256":"effcad83fb327c6b92f1acaa563b693db211e53f97cb7d359d7adf72b2ab7a6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lqqDnYE2IOoukBvHYLmmJ/m2SSHoSdN2H2FGCOPI2BewjOiY9LhfsfgUEaL1QOpux0/D/eCuCqBRHo9hYVXGBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T04:10:56.466518Z","bundle_sha256":"14294e3799c398393953ad46889498e5f42f4f3ef9299539b993c170ad1e4f1d"}}