{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:YQQLK7QJHDJJL7SLQ4SI4O5PUT","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":"0a7e648679e306897584509462908105b0ad7e53d9110c811421af75b5f394f8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-11T13:19:38Z","title_canon_sha256":"6869f8f992dd88c81b7712b0e98b177a865897f3f85c95cb0b81613c5a49f9fc"},"schema_version":"1.0","source":{"id":"2606.13326","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.13326","created_at":"2026-06-12T01:09:52Z"},{"alias_kind":"arxiv_version","alias_value":"2606.13326v1","created_at":"2026-06-12T01:09:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.13326","created_at":"2026-06-12T01:09:52Z"},{"alias_kind":"pith_short_12","alias_value":"YQQLK7QJHDJJ","created_at":"2026-06-12T01:09:52Z"},{"alias_kind":"pith_short_16","alias_value":"YQQLK7QJHDJJL7SL","created_at":"2026-06-12T01:09:52Z"},{"alias_kind":"pith_short_8","alias_value":"YQQLK7QJ","created_at":"2026-06-12T01:09:52Z"}],"graph_snapshots":[{"event_id":"sha256:86447fdc5b88bb50a6a86f8ffd891fc0555102320bae11684cdebd3d1c353e17","target":"graph","created_at":"2026-06-12T01:09:52Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.13326/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate the design of a flexible, university-scale hybrid tokamak-stellarator experiment based on an axisymmetric array of planar HTS dipole coils. Because the coil array has few geometric degrees of freedom, we use single-stage optimization of the coil currents initialized from two-stage solutions to obtain mutually consistent equilibria and coil sets within realistic engineering limits. We find that the field error and coil current thresholds set minimum and maximum coil-plasma distances that confine the boundary to a roughly fixed axisymmetric envelope, within which rotational transf","authors_text":"Carlos Paz-Soldan, Elizabeth Paul, Frederick Sheehan, Ian Stewart, Jacob Halpern, Mohammed Haque, Rithik Banerjee, Talia Angles","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-11T13:19:38Z","title":"Feasibility of a Flexible, Hybrid Tokamak-Stellarator Experiment using an Axisymmetric Dipole Coil Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.13326","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":"sha256:103aedfbe803b161d07e42cd60c06a900d49b96964004c11625e038a66cff8da","target":"record","created_at":"2026-06-12T01:09:52Z","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":"0a7e648679e306897584509462908105b0ad7e53d9110c811421af75b5f394f8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-11T13:19:38Z","title_canon_sha256":"6869f8f992dd88c81b7712b0e98b177a865897f3f85c95cb0b81613c5a49f9fc"},"schema_version":"1.0","source":{"id":"2606.13326","kind":"arxiv","version":1}},"canonical_sha256":"c420b57e0938d295fe4b87248e3bafa4c5b9eafcb14968f6a5f2092f970398f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c420b57e0938d295fe4b87248e3bafa4c5b9eafcb14968f6a5f2092f970398f4","first_computed_at":"2026-06-12T01:09:52.622826Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-12T01:09:52.622826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VHw5v+bXM7T74dENaY1PmavT1/ht81edKCBQrkAsd6fyCDYx5rl3iIYI396AIKM8NdUuNIxo2vlFcVddzKAXBQ==","signature_status":"signed_v1","signed_at":"2026-06-12T01:09:52.623709Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.13326","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:103aedfbe803b161d07e42cd60c06a900d49b96964004c11625e038a66cff8da","sha256:86447fdc5b88bb50a6a86f8ffd891fc0555102320bae11684cdebd3d1c353e17"],"state_sha256":"30ac902843dcf1eeca0cb1da984b869c034c5697618548b8c0e38c9554c85545"}