{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:XFA24QL4GSLDPDCWLI6CCCXWEH","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":"d5b776c5de14fe54f4464333d0cc0a58224d7d2cfb83a872ccbffb32f15cd9d1","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-01T19:20:09Z","title_canon_sha256":"5cc839f619a3dded0667bf7bc7c6521991c4bbf2a35a9500677c93696be0c95d"},"schema_version":"1.0","source":{"id":"2508.01033","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.01033","created_at":"2026-07-05T11:53:28Z"},{"alias_kind":"arxiv_version","alias_value":"2508.01033v2","created_at":"2026-07-05T11:53:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.01033","created_at":"2026-07-05T11:53:28Z"},{"alias_kind":"pith_short_12","alias_value":"XFA24QL4GSLD","created_at":"2026-07-05T11:53:28Z"},{"alias_kind":"pith_short_16","alias_value":"XFA24QL4GSLDPDCW","created_at":"2026-07-05T11:53:28Z"},{"alias_kind":"pith_short_8","alias_value":"XFA24QL4","created_at":"2026-07-05T11:53:28Z"}],"graph_snapshots":[{"event_id":"sha256:669b568ddd97441d18f43bb1282196dc4ea1b7a87b9c1a7cab9505bf217f2793","target":"graph","created_at":"2026-07-05T11:53:28Z","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/2508.01033/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In conventional exchange-only (EO) spin qubit demonstrations, quantum gates have been implemented using sequences of individually pulsed pairwise exchange interactions with only one exchange coupling active at a time. Alternatively, multiple non-commuting exchange interactions can be pulsed simultaneously, reducing circuit depths and providing protection against leakage. We demonstrate high-fidelity quantum control of an always-on exchange-only (AEON) qubit, operated using simultaneous exchange pulses in a triangular quantum dot (QD) array. We use blind randomized benchmarking to characterize ","authors_text":"Edwin Acuna, Jason R. Petta, Jesse C. Hoke, Joseph D. Broz","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-01T19:20:09Z","title":"Demonstration of an always-on exchange-only spin qubit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.01033","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:f46286113fd2aa1e7355c8bb75bc685b7d65be7841025f5d5a72b7591ff2e006","target":"record","created_at":"2026-07-05T11:53:28Z","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":"d5b776c5de14fe54f4464333d0cc0a58224d7d2cfb83a872ccbffb32f15cd9d1","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-01T19:20:09Z","title_canon_sha256":"5cc839f619a3dded0667bf7bc7c6521991c4bbf2a35a9500677c93696be0c95d"},"schema_version":"1.0","source":{"id":"2508.01033","kind":"arxiv","version":2}},"canonical_sha256":"b941ae417c3496378c565a3c210af621cfe8fd0cc8e16c56cb4378b568028cc2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b941ae417c3496378c565a3c210af621cfe8fd0cc8e16c56cb4378b568028cc2","first_computed_at":"2026-07-05T11:53:28.216043Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:53:28.216043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4OekXQP15cOcUkB40Rk71wB5Xd94Laa9E4XD7Cv60hCQnXV8aB6Y8jVYManIdsgqBvFXEQt/XoJXoFDRLZEhBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:53:28.216542Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.01033","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f46286113fd2aa1e7355c8bb75bc685b7d65be7841025f5d5a72b7591ff2e006","sha256:669b568ddd97441d18f43bb1282196dc4ea1b7a87b9c1a7cab9505bf217f2793"],"state_sha256":"d1811c90aea8300dfaff4d2109d335cf2ad0d4bbf5a4904575a4c18ba8e51433"}