{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PXZ6XZXQST5A3WLQLMDHEKSD77","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":"c208c00e0877e5df1e144dad208ed5021cd1a3943417d0ba84dd9547fef112f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-04-25T19:54:39Z","title_canon_sha256":"2e5e3bca64909d915da78ef0146c93da0e741c37118d446dc5369216a0720673"},"schema_version":"1.0","source":{"id":"1204.5739","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5739","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5739v1","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5739","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"pith_short_12","alias_value":"PXZ6XZXQST5A","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PXZ6XZXQST5A3WLQ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PXZ6XZXQ","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:f0c40a3d82dc5892da07e712d7af303fe7536b63b5b5a1dbe60e6d4b908d8eae","target":"graph","created_at":"2026-05-18T01:57:44Z","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":"Design of a muon collider interaction region (IR) presents a number of challenges arising from low {\\beta}* < 1 cm, correspondingly large beta-function values and beam sizes at IR magnets, as well as the necessity to protect superconducting magnets and collider detectors from muon decay products. As a consequence, the designs of the IR optics, magnets and machine-detector interface are strongly interlaced and iterative. A consistent solution for the 1.5 TeV c.o.m. muon collider IR is presented. It can provide an average luminosity of 1034 cm-2s-1 with an adequate protection of magnet and detec","authors_text":"A. V. Zlobin (Fermilab), E. Gianfelice-Wendt, JINR), N. V. Mokhov, V. V. Kashikhin, V. Y. Alexakhin (Dubna, Y. I. Alexahin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-04-25T19:54:39Z","title":"Muon collider interaction region design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5739","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":"sha256:9c0a5772b5de0f4224f9f14bf90b8e5713dd38a0da35da1488e499f711957a0f","target":"record","created_at":"2026-05-18T01:57:44Z","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":"c208c00e0877e5df1e144dad208ed5021cd1a3943417d0ba84dd9547fef112f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-04-25T19:54:39Z","title_canon_sha256":"2e5e3bca64909d915da78ef0146c93da0e741c37118d446dc5369216a0720673"},"schema_version":"1.0","source":{"id":"1204.5739","kind":"arxiv","version":1}},"canonical_sha256":"7df3ebe6f094fa0dd9705b06722a43fffb8889d06297d8c922ca5bb61a2d2c39","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7df3ebe6f094fa0dd9705b06722a43fffb8889d06297d8c922ca5bb61a2d2c39","first_computed_at":"2026-05-18T01:57:44.240987Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:44.240987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3vWnuI1GUms2/08FXBYlypdF8qjkkYh4TnN5HRnsmXIhz27ImJ6U3pgd+h+3ePCTVwm1AAib/ZnykCtpXJLqDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:44.241764Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5739","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c0a5772b5de0f4224f9f14bf90b8e5713dd38a0da35da1488e499f711957a0f","sha256:f0c40a3d82dc5892da07e712d7af303fe7536b63b5b5a1dbe60e6d4b908d8eae"],"state_sha256":"4f9dfb8be35973b94b3f8843302e4866041ef5638de3b1c54139a07faf1e34d0"}