{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XSWOGEAC3LKI4QBKRT3TT56H7H","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":"39ee091f915c4d64200dd706b6b7526ad7a86f56a2fd32c8b519455c5c6edc7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-13T09:46:26Z","title_canon_sha256":"698612eb22e93e8e6f97411eb46f512b079f2d7809c7a22bc8ebde6f2fa4d71b"},"schema_version":"1.0","source":{"id":"1501.02932","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.02932","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"arxiv_version","alias_value":"1501.02932v1","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.02932","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"pith_short_12","alias_value":"XSWOGEAC3LKI","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XSWOGEAC3LKI4QBK","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XSWOGEAC","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:e1a27f7d8e726e03493751b28d6756fda8d87c557925ea43d24ff53a1ffdc2c6","target":"graph","created_at":"2026-05-18T02:29:30Z","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":"This paper is about the mechanical design of superconducting accelerator magnets. First, we give a brief review of the basic concepts and terms. In the following sections, we describe the particularities of the mechanical design of different types of superconducting accelerator magnets: solenoids, cos-theta, superferric, and toroids. Special attention is given to the pre-stress principle, which aims to avoid the appearance of tensile stresses in the superconducting coils. A case study on a compact superconducting cyclotron summarizes the main steps and the guidelines that should be followed fo","authors_text":"Fernando Toral","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-13T09:46:26Z","title":"Mechanical Design of Superconducting Accelerator Magnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.02932","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":"sha256:9b9c41f85273a76b533e49ac013e1f635848422ac26e7e44b2d90fe79d328535","target":"record","created_at":"2026-05-18T02:29:30Z","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":"39ee091f915c4d64200dd706b6b7526ad7a86f56a2fd32c8b519455c5c6edc7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-13T09:46:26Z","title_canon_sha256":"698612eb22e93e8e6f97411eb46f512b079f2d7809c7a22bc8ebde6f2fa4d71b"},"schema_version":"1.0","source":{"id":"1501.02932","kind":"arxiv","version":1}},"canonical_sha256":"bcace31002dad48e402a8cf739f7c7f9f232825ae0bb9c35d8960cee1e72f6c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bcace31002dad48e402a8cf739f7c7f9f232825ae0bb9c35d8960cee1e72f6c2","first_computed_at":"2026-05-18T02:29:30.889305Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:29:30.889305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H7K6dw8IlD7LeG8l0D6ahHEL/sG77/hfqZK3f3y3rAE4pyFl0TPJgCkqTdqRhOTv3InHnox+f4bPlBNtWSJ7BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:29:30.889827Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.02932","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b9c41f85273a76b533e49ac013e1f635848422ac26e7e44b2d90fe79d328535","sha256:e1a27f7d8e726e03493751b28d6756fda8d87c557925ea43d24ff53a1ffdc2c6"],"state_sha256":"6a4cb75ff7d54ebfdf56b440733b1fc1a19026d8852972ab5dd8c3cfe62ccd98"}