{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:4HHWI6BNVCSR6UQDW7GH4OARDY","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":"f8bfe9ef126f901de5a9d81e77e44844681985b47d2319d5c0dc2fae0bd49fd7","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-12-24T10:12:14Z","title_canon_sha256":"778edebca30986ffab399176095ef56083c57a5718aa9b33d13f356111ca847b"},"schema_version":"1.0","source":{"id":"2112.13019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.13019","created_at":"2026-07-05T03:43:49Z"},{"alias_kind":"arxiv_version","alias_value":"2112.13019v1","created_at":"2026-07-05T03:43:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.13019","created_at":"2026-07-05T03:43:49Z"},{"alias_kind":"pith_short_12","alias_value":"4HHWI6BNVCSR","created_at":"2026-07-05T03:43:49Z"},{"alias_kind":"pith_short_16","alias_value":"4HHWI6BNVCSR6UQD","created_at":"2026-07-05T03:43:49Z"},{"alias_kind":"pith_short_8","alias_value":"4HHWI6BN","created_at":"2026-07-05T03:43:49Z"}],"graph_snapshots":[{"event_id":"sha256:5a0bc22f4e5cf67bbc589c64d6cf51ac47c91a36b4ba04fa3da98148ff58f3ab","target":"graph","created_at":"2026-07-05T03:43:49Z","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/2112.13019/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The combined vertexing and tracking performance of the innermost part of the FCC-ee experiments must deliver outstanding precision for measurement of the track momentum together with an impact parameter resolution exceeding by at least a factor five that typically achieved at LHC experiments. Furthermore, precision measurements require stability and fiducial accuracy at a level which is unprecedented in collider experiments. For the innermost vertex layers these goals translate into a target hit resolution of approximately 3 $\\mu$m together with a material budget of around 0.2\\% of a radiation","authors_text":"Nicola Barchetta, Paula Collins, Petra Riedler","cross_cats":["hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-12-24T10:12:14Z","title":"Tracking and Vertex detectors at FCC-ee"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.13019","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:a8668a04a27e779ce78e75e1b5ebace96061d939544e6b84c8d05daf8ef74465","target":"record","created_at":"2026-07-05T03:43:49Z","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":"f8bfe9ef126f901de5a9d81e77e44844681985b47d2319d5c0dc2fae0bd49fd7","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-12-24T10:12:14Z","title_canon_sha256":"778edebca30986ffab399176095ef56083c57a5718aa9b33d13f356111ca847b"},"schema_version":"1.0","source":{"id":"2112.13019","kind":"arxiv","version":1}},"canonical_sha256":"e1cf64782da8a51f5203b7cc7e38111e3a6c073a96cf4602552654f04bcfcb13","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1cf64782da8a51f5203b7cc7e38111e3a6c073a96cf4602552654f04bcfcb13","first_computed_at":"2026-07-05T03:43:49.058738Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:43:49.058738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wlCkbyuf6cvfBExRVVJLw5WCrDCHRGUj36UqA8jwtDjQYF6Sg7uToZbwa0/fbpZVUJWTh+6Ay6u7j91p5KFkBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:43:49.059118Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.13019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8668a04a27e779ce78e75e1b5ebace96061d939544e6b84c8d05daf8ef74465","sha256:5a0bc22f4e5cf67bbc589c64d6cf51ac47c91a36b4ba04fa3da98148ff58f3ab"],"state_sha256":"81805d80cca66b7798ce4cc03bceaf1caa04d43d27607fd182764b7e81ab87c7"}