{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:APFA5YLKUZW5HH43AIBU5GMF6G","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":"fe5e7dbbada8bc39a26e707fd894fa9fde207c845d8af5ad4e8d35638d2a608b","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-10T12:28:48Z","title_canon_sha256":"afbb48448b204921c2d0cb80aa1d32c60e4418c1588d8983be1dea428218d19f"},"schema_version":"1.0","source":{"id":"2607.09347","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.09347","created_at":"2026-07-13T01:19:04Z"},{"alias_kind":"arxiv_version","alias_value":"2607.09347v1","created_at":"2026-07-13T01:19:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.09347","created_at":"2026-07-13T01:19:04Z"},{"alias_kind":"pith_short_12","alias_value":"APFA5YLKUZW5","created_at":"2026-07-13T01:19:04Z"},{"alias_kind":"pith_short_16","alias_value":"APFA5YLKUZW5HH43","created_at":"2026-07-13T01:19:04Z"},{"alias_kind":"pith_short_8","alias_value":"APFA5YLK","created_at":"2026-07-13T01:19:04Z"}],"graph_snapshots":[{"event_id":"sha256:31c93e37d0937de640ed7b64574f04597a14b9b0f17afb41463286e62bffcb6e","target":"graph","created_at":"2026-07-13T01:19:04Z","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/2607.09347/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the commissioning and operation of the Graph Neural Network Electromagnetic Calorimeter Trigger Module (GNN-ETM) of the Belle II experiment at the SuperKEKB collider. The GNN-ETM processes calorimeter trigger cells as graph nodes to perform clustering and feature extraction. We fully integrate the system with the successive stages of the first-level trigger, develop slow-control drivers, and add online monitoring capabilities. We optimise the existing FPGA-based architecture through hardware-algorithm co-design, achieving an overall system latency of 1.053 us. Our hardware implement","authors_text":"F. Baptist, H. Nakazawa, I. Haide, J. Becker, K. Arai, K. Unger, M. Maushart, M. Neu, T. Ferber, T. Koga, V. Savinov, Y.-T. Lai, Y. Unno","cross_cats":["eess.SP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-10T12:28:48Z","title":"Commissioning and Low Latency Operation of the Graph Neural Network Electromagnetic Calorimeter Trigger at the Belle II Experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.09347","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":"sha256:5aac181d97d5a8b3e50b6d0becceb54aeb8445957bdc114a4e85b2a17bb40560","target":"record","created_at":"2026-07-13T01:19:04Z","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":"fe5e7dbbada8bc39a26e707fd894fa9fde207c845d8af5ad4e8d35638d2a608b","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-07-10T12:28:48Z","title_canon_sha256":"afbb48448b204921c2d0cb80aa1d32c60e4418c1588d8983be1dea428218d19f"},"schema_version":"1.0","source":{"id":"2607.09347","kind":"arxiv","version":1}},"canonical_sha256":"03ca0ee16aa66dd39f9b02034e9985f18d4098cebdd2768232c79de41237897c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03ca0ee16aa66dd39f9b02034e9985f18d4098cebdd2768232c79de41237897c","first_computed_at":"2026-07-13T01:19:04.520735Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-13T01:19:04.520735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v0D+yjU5iAymtPHIXvSU/NJgFk3WuFLXUSRfGcJ9Caj8R3cRefPRGT/ST4hA+MjzXPkKBWd6ZDSXrZiNZS4gCA==","signature_status":"signed_v1","signed_at":"2026-07-13T01:19:04.521787Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.09347","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5aac181d97d5a8b3e50b6d0becceb54aeb8445957bdc114a4e85b2a17bb40560","sha256:31c93e37d0937de640ed7b64574f04597a14b9b0f17afb41463286e62bffcb6e"],"state_sha256":"7708c46d94069ac1de13872c0d9a25b08aa71d0837aea32bd54cca3123524cf2"}