{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SB6N3HQLQAQU7HQVBX4AADN5WG","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":"23d40a26759e4382d6b885c6e3e53c308b5889e0ca9ea199e973265bcfe07142","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-09-05T12:56:33Z","title_canon_sha256":"1dbe353a6e36b5d3aa304f368181aef7fc406d73a7761ccabadd0a467bf1459a"},"schema_version":"1.0","source":{"id":"1809.01467","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.01467","created_at":"2026-05-17T23:42:29Z"},{"alias_kind":"arxiv_version","alias_value":"1809.01467v1","created_at":"2026-05-17T23:42:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01467","created_at":"2026-05-17T23:42:29Z"},{"alias_kind":"pith_short_12","alias_value":"SB6N3HQLQAQU","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"SB6N3HQLQAQU7HQV","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"SB6N3HQL","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:3aa02a0fd77c51b6eaa79347b0bd53dba1792dbfb5c5f7d1b4346cd024cc8ca9","target":"graph","created_at":"2026-05-17T23:42:29Z","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 article describes a new charged-particle track fitting algorithm designed for use in high-speed electronics applications such as hardware-based triggers in high-energy physics experiments. Following a novel technique designed for fast electronics, the positions of the hits on the detector are transformed before being passed to a linearized track parameter fit. This transformation results in fitted track parameters with a very linear dependence on the hit positions. The approach is demonstrated in a representative detector geometry based on the CMS detector at the Large Hadron Collider. Th","authors_text":"D. Rathjens, E. Clement, J. Konigsberg, J. Low, K. A. Ulmer, K. Hahn, L. Ristori, L. Skinnari, M. De Mattia, M. Trovato, R. Eusebi, R. Patel, S. Dutta, S. Jindariani, S. Viret, T. Liu, Z. Hu","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-09-05T12:56:33Z","title":"A High-performance Track Fitter for Use in Ultra-fast Electronics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01467","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":"sha256:8a47861555d024ea5c7170b1ff622fac47303ba20d29913ab154958256509292","target":"record","created_at":"2026-05-17T23:42:29Z","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":"23d40a26759e4382d6b885c6e3e53c308b5889e0ca9ea199e973265bcfe07142","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-09-05T12:56:33Z","title_canon_sha256":"1dbe353a6e36b5d3aa304f368181aef7fc406d73a7761ccabadd0a467bf1459a"},"schema_version":"1.0","source":{"id":"1809.01467","kind":"arxiv","version":1}},"canonical_sha256":"907cdd9e0b80214f9e150df8000dbdb18579630f07e5a3bf678dd18df74db5f9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"907cdd9e0b80214f9e150df8000dbdb18579630f07e5a3bf678dd18df74db5f9","first_computed_at":"2026-05-17T23:42:29.749454Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:29.749454Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8OpUiX1CdPEyBgfhHF/aMTuhijfKy8OU0WeiDfnTLwhLpa1qmUiKGqTNIzrhgYOUn86qvWY3qUpkQLlZwTpEAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:29.750135Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.01467","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a47861555d024ea5c7170b1ff622fac47303ba20d29913ab154958256509292","sha256:3aa02a0fd77c51b6eaa79347b0bd53dba1792dbfb5c5f7d1b4346cd024cc8ca9"],"state_sha256":"139d51d1ae104b9de7a44502c2bf08447b1d5fcbdc25690f4c08c00b7a438873"}