{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VXGOBKEWG5KI37IKJ5VKMPTPCU","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":"c46efe750aae09c2e53d4cbe7375be56ead796bdd624dccac76ee5b0ad476c52","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-05-31T05:06:31Z","title_canon_sha256":"0578de5a12afd2fb4fa9de9d3f8c4dd0dbd711fbded380a6314f2b5580f9f13f"},"schema_version":"1.0","source":{"id":"1305.7300","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.7300","created_at":"2026-05-18T01:49:39Z"},{"alias_kind":"arxiv_version","alias_value":"1305.7300v2","created_at":"2026-05-18T01:49:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.7300","created_at":"2026-05-18T01:49:39Z"},{"alias_kind":"pith_short_12","alias_value":"VXGOBKEWG5KI","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VXGOBKEWG5KI37IK","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VXGOBKEW","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:c7fba4197eba42ccf5ffe0bc403cc68b841b56a7933fef2852523f305ebd6b0e","target":"graph","created_at":"2026-05-18T01:49:39Z","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":"In the future International Linear Collider (ILC) experiment, high performance tracking is essential to its physics program including precision Higgs studies. One of major challenges for a detector such as the proposed International Large Detector (ILD) is to provide excellent momentum resolution in a magnetic filed with small (but non-negligible) non-uniformity. The non-uniform magnetic field implies deviation from a helical track and hence requires the extension of a helical track model used for track fitting in a uniform magnetic field. In this paper, a segment-wise helical track model is i","authors_text":"Bo Li, Keisuke Fujii, Yuanning Gao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-05-31T05:06:31Z","title":"Kalman-filter-based track fitting in non-uniform magnetic field with segment-wise helical track model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.7300","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":"sha256:81183a6a8da4d9d68df1b09714f7d4b3b21417d2ecd0bd819821fca0fd5af338","target":"record","created_at":"2026-05-18T01:49:39Z","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":"c46efe750aae09c2e53d4cbe7375be56ead796bdd624dccac76ee5b0ad476c52","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2013-05-31T05:06:31Z","title_canon_sha256":"0578de5a12afd2fb4fa9de9d3f8c4dd0dbd711fbded380a6314f2b5580f9f13f"},"schema_version":"1.0","source":{"id":"1305.7300","kind":"arxiv","version":2}},"canonical_sha256":"adcce0a89637548dfd0a4f6aa63e6f151acbc08797c6cc7235711004ca63ec7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"adcce0a89637548dfd0a4f6aa63e6f151acbc08797c6cc7235711004ca63ec7e","first_computed_at":"2026-05-18T01:49:39.352736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:39.352736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wiwveN3pxLT6LtSrZkzjQbZu4X1w41S7UZK8Y0wv+LV3zdb7i13jAwJt2xL4pGwTI8w3+MB6eOE+d6zJkC8TBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:39.353612Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.7300","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81183a6a8da4d9d68df1b09714f7d4b3b21417d2ecd0bd819821fca0fd5af338","sha256:c7fba4197eba42ccf5ffe0bc403cc68b841b56a7933fef2852523f305ebd6b0e"],"state_sha256":"707f12dc63120022445def02d2adb405f957ff33250702f42b8d1782096d9aa2"}