{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:WVCKXBRBI3NIAKJWEUK25IUQIL","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":"615791343a941a4e724fea69a85c61c7a4f53e64a0a96705fdee382a4c90c1e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-05-19T16:58:59Z","title_canon_sha256":"74456f938c0ce7b44c15245004c1c9b1c09bafd1bd6e1a4ead333f6fd6803814"},"schema_version":"1.0","source":{"id":"1005.3491","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3491","created_at":"2026-05-18T02:07:16Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3491v2","created_at":"2026-05-18T02:07:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3491","created_at":"2026-05-18T02:07:16Z"},{"alias_kind":"pith_short_12","alias_value":"WVCKXBRBI3NI","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"WVCKXBRBI3NIAKJW","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"WVCKXBRB","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:dec68736b6ee063dcdae1cd9d7ee0d6e7ccb125afc4442ac453b4214f0026797","target":"graph","created_at":"2026-05-18T02:07:16Z","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":"Charged-particle tracking in the international Muon Ionisation Cooling Experiment (MICE) will be performed using two solenoidal spectrometers, each instrumented with a tracking detector based on 350 {\\mu}m diameter scintillating fibres. The design and construction of the trackers is described along with the quality-assurance procedures, photon-detection system, readout electronics, reconstruction and simulation software and the data-acquisition system. Finally, the performance of the MICE tracker, determined using cosmic rays, is presented.","authors_text":"A. Bross, A. Fish, A. Jamdagni, A. Klier, A. Sato, A. Tapper, B. Freemire, C. MacWaters, C. Rogers, C. Tolian, D. Adey, D. Clark, D. Cline, D.M. Kaplan, E. McKigney, G. Barber, G. Hanson, H. Sakamoto, I. Clark, J. Fagan, J.J. Nebrensky, J. Krider, J. Leaver, K.R. Long, K. Yoshimura, L. Coney, M. Ellis, M. Khaleeq, M. Takahashi, M. Wojcik, M. Yoshida, P. Cooke, P.J. Dornan, P. Kyberd, P.R. Hobson, P. Rubinov, P. Savage, R. Flores, R. Gamet, R. Hare, R. Kubinski, R. Rucinski, S. Greenwood, T. Fitzpatrick, T.L. Hart, T. Matsushita, T. Sashalmi, T. Yano, V. Kasey, W. Luebke, X. Yang, Y. Kuno","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-05-19T16:58:59Z","title":"The design, construction and performance of the MICE scintillating fibre trackers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3491","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:e8e016d7c5561c372d47a9a8ed551d791f19f13c58ddff043b5a53c63f61e1a0","target":"record","created_at":"2026-05-18T02:07:16Z","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":"615791343a941a4e724fea69a85c61c7a4f53e64a0a96705fdee382a4c90c1e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2010-05-19T16:58:59Z","title_canon_sha256":"74456f938c0ce7b44c15245004c1c9b1c09bafd1bd6e1a4ead333f6fd6803814"},"schema_version":"1.0","source":{"id":"1005.3491","kind":"arxiv","version":2}},"canonical_sha256":"b544ab862146da8029362515aea29042e55b4185cadbc4d6957a90274199242e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b544ab862146da8029362515aea29042e55b4185cadbc4d6957a90274199242e","first_computed_at":"2026-05-18T02:07:16.827395Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:16.827395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FJviO5C+NeI6kMMacMewV2/sA+EWUhazG5vsRcuS+Q9yiy2BfnlQ8GtgT8OcDQiwh9fgDvr5U8LAYl7g+Rd4AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:16.828281Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.3491","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e8e016d7c5561c372d47a9a8ed551d791f19f13c58ddff043b5a53c63f61e1a0","sha256:dec68736b6ee063dcdae1cd9d7ee0d6e7ccb125afc4442ac453b4214f0026797"],"state_sha256":"8cffc83a724cc4d91272aefbc02199630d3d32fe928243ae90e9c4b4c0714ef9"}