{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:KISFBRGVDWVVWADWFLX4UCGYCD","short_pith_number":"pith:KISFBRGV","canonical_record":{"source":{"id":"2607.14793","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-16T10:11:52Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"347f77c608b569d23a003bc015c12016d051c9778926577af93c86f44025563a","abstract_canon_sha256":"fd86c877e7249c73d853345f99c7a13bb969680d6c0aa30dc002244f2c9cedcc"},"schema_version":"1.0"},"canonical_sha256":"522450c4d51dab5b00762aefca08d810d33d3c03854dbadc8f608a38fc0fca48","source":{"kind":"arxiv","id":"2607.14793","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14793","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14793v1","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14793","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"pith_short_12","alias_value":"KISFBRGVDWVV","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"pith_short_16","alias_value":"KISFBRGVDWVVWADW","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"pith_short_8","alias_value":"KISFBRGV","created_at":"2026-07-17T01:21:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:KISFBRGVDWVVWADWFLX4UCGYCD","target":"record","payload":{"canonical_record":{"source":{"id":"2607.14793","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-16T10:11:52Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"347f77c608b569d23a003bc015c12016d051c9778926577af93c86f44025563a","abstract_canon_sha256":"fd86c877e7249c73d853345f99c7a13bb969680d6c0aa30dc002244f2c9cedcc"},"schema_version":"1.0"},"canonical_sha256":"522450c4d51dab5b00762aefca08d810d33d3c03854dbadc8f608a38fc0fca48","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T01:21:31.341076Z","signature_b64":"YZIAZTP8Ffu/0ukWkUhcNAA7GEhIsadZvt9Qeqn+/3DW+3F7JGyM4okri+lOTiRAqYx+QWwhG8cqauQKiJ17Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"522450c4d51dab5b00762aefca08d810d33d3c03854dbadc8f608a38fc0fca48","last_reissued_at":"2026-07-17T01:21:31.340231Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T01:21:31.340231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.14793","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-17T01:21:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DXERKGbZdY5DAZCImyiRFwDQZxdUnVpDKJq4h7KHnp9xClOV9tpSiBvN55YS0STNoS02A6Wn2WM+0dXcnVaSCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T12:16:26.578290Z"},"content_sha256":"61af38ece934419657472fa7084b73be1337cb2fb8779e775d58de7f6b931c23","schema_version":"1.0","event_id":"sha256:61af38ece934419657472fa7084b73be1337cb2fb8779e775d58de7f6b931c23"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:KISFBRGVDWVVWADWFLX4UCGYCD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Track fitting at the full LHC collision rate","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"hep-ex","authors_text":"Lennart H. Uecker, Michel De Cian, Pierre Billoir, Thomas Boettcher","submitted_at":"2026-07-16T10:11:52Z","abstract_excerpt":"The LHCb experiment at the Large Hadron Collider underwent a major upgrade before the LHC Run 3 data taking period, employing an all-software approach in its trigger system. Here we present a fast implementation of a Kalman filter, used in the first trigger stage since the 2025 data taking period, allowing to determine parameter estimates of charged-particle trajectories at the full LHCb collision frequency of 30 MHz. This approach replaces computationally expensive magnetic field map lookups and numerical integration methods with fast analytical parameterisations while maintaining the mathema"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14793","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.14793/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-17T01:21:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ANu+PCJpjc1veSDO3/YI6N3tLIf5txtqQU/EoDRMwOu903Cya3AJ4N85M0Wpvbo957d/mTpvYP6eZUup5EA0CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T12:16:26.579225Z"},"content_sha256":"dc0ed18ae93aa1a04a40a806d072eeb6b483f25182c70cf463b60d5fa06cd172","schema_version":"1.0","event_id":"sha256:dc0ed18ae93aa1a04a40a806d072eeb6b483f25182c70cf463b60d5fa06cd172"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KISFBRGVDWVVWADWFLX4UCGYCD/bundle.json","state_url":"https://pith.science/pith/KISFBRGVDWVVWADWFLX4UCGYCD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KISFBRGVDWVVWADWFLX4UCGYCD/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-03T12:16:26Z","links":{"resolver":"https://pith.science/pith/KISFBRGVDWVVWADWFLX4UCGYCD","bundle":"https://pith.science/pith/KISFBRGVDWVVWADWFLX4UCGYCD/bundle.json","state":"https://pith.science/pith/KISFBRGVDWVVWADWFLX4UCGYCD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KISFBRGVDWVVWADWFLX4UCGYCD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:KISFBRGVDWVVWADWFLX4UCGYCD","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":"fd86c877e7249c73d853345f99c7a13bb969680d6c0aa30dc002244f2c9cedcc","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-16T10:11:52Z","title_canon_sha256":"347f77c608b569d23a003bc015c12016d051c9778926577af93c86f44025563a"},"schema_version":"1.0","source":{"id":"2607.14793","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14793","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14793v1","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14793","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"pith_short_12","alias_value":"KISFBRGVDWVV","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"pith_short_16","alias_value":"KISFBRGVDWVVWADW","created_at":"2026-07-17T01:21:31Z"},{"alias_kind":"pith_short_8","alias_value":"KISFBRGV","created_at":"2026-07-17T01:21:31Z"}],"graph_snapshots":[{"event_id":"sha256:dc0ed18ae93aa1a04a40a806d072eeb6b483f25182c70cf463b60d5fa06cd172","target":"graph","created_at":"2026-07-17T01:21:31Z","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/2607.14793/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The LHCb experiment at the Large Hadron Collider underwent a major upgrade before the LHC Run 3 data taking period, employing an all-software approach in its trigger system. Here we present a fast implementation of a Kalman filter, used in the first trigger stage since the 2025 data taking period, allowing to determine parameter estimates of charged-particle trajectories at the full LHCb collision frequency of 30 MHz. This approach replaces computationally expensive magnetic field map lookups and numerical integration methods with fast analytical parameterisations while maintaining the mathema","authors_text":"Lennart H. Uecker, Michel De Cian, Pierre Billoir, Thomas Boettcher","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-16T10:11:52Z","title":"Track fitting at the full LHC collision rate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14793","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":"sha256:61af38ece934419657472fa7084b73be1337cb2fb8779e775d58de7f6b931c23","target":"record","created_at":"2026-07-17T01:21:31Z","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":"fd86c877e7249c73d853345f99c7a13bb969680d6c0aa30dc002244f2c9cedcc","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-16T10:11:52Z","title_canon_sha256":"347f77c608b569d23a003bc015c12016d051c9778926577af93c86f44025563a"},"schema_version":"1.0","source":{"id":"2607.14793","kind":"arxiv","version":1}},"canonical_sha256":"522450c4d51dab5b00762aefca08d810d33d3c03854dbadc8f608a38fc0fca48","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"522450c4d51dab5b00762aefca08d810d33d3c03854dbadc8f608a38fc0fca48","first_computed_at":"2026-07-17T01:21:31.340231Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T01:21:31.340231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YZIAZTP8Ffu/0ukWkUhcNAA7GEhIsadZvt9Qeqn+/3DW+3F7JGyM4okri+lOTiRAqYx+QWwhG8cqauQKiJ17Aw==","signature_status":"signed_v1","signed_at":"2026-07-17T01:21:31.341076Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.14793","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61af38ece934419657472fa7084b73be1337cb2fb8779e775d58de7f6b931c23","sha256:dc0ed18ae93aa1a04a40a806d072eeb6b483f25182c70cf463b60d5fa06cd172"],"state_sha256":"e32b43b8e4054741675eb71fce2a4f9c5910d274381968f6026b211b8cdfdbca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yVvWcRg9UPVpAqbKPXvGQ2XloXFOn9riY22mPDX4B1KdPR9qnO+qLmRvzntSnRRkLipl5ejxnPTPNiROplAkAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T12:16:26.585013Z","bundle_sha256":"941508636c30d205ce204b85ff89980c3e527bc3a256343f99911e9037f5bdc6"}}