{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2QTRM3HAA2BAR6DYVRN4SSLAHB","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":"0353c40f327dca235d77ac8cd095c4949727261d1b67ee50ebc1e6cd73cdfe77","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2025-04-03T19:29:02Z","title_canon_sha256":"7c678cee805af2a517b6c4309b826ecf3e2d4f0e236b7aca8d5154665c5c4374"},"schema_version":"1.0","source":{"id":"2504.02989","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.02989","created_at":"2026-07-05T11:37:17Z"},{"alias_kind":"arxiv_version","alias_value":"2504.02989v3","created_at":"2026-07-05T11:37:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.02989","created_at":"2026-07-05T11:37:17Z"},{"alias_kind":"pith_short_12","alias_value":"2QTRM3HAA2BA","created_at":"2026-07-05T11:37:17Z"},{"alias_kind":"pith_short_16","alias_value":"2QTRM3HAA2BAR6DY","created_at":"2026-07-05T11:37:17Z"},{"alias_kind":"pith_short_8","alias_value":"2QTRM3HA","created_at":"2026-07-05T11:37:17Z"}],"graph_snapshots":[{"event_id":"sha256:bfc45fa3f34c1c76dcb707706592baac35f4be8e28a21d07bb4a9280b51f6dce","target":"graph","created_at":"2026-07-05T11:37:17Z","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/2504.02989/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The 3-inch Hamamatsu R14374-02 photomultiplier tube is an improved version of the R12199-02 model and its successor in the construction of the KM3NeT neutrino telescope. A total of 1000 photomultipliers were analysed to assess their dark count rate, transit time spread, and spurious pulses. A subset of 200 photomultipliers were further evaluated to determine their quantum efficiency which is an essential parameter for Monte Carlo simulations of the detector response. The measurements show that R14374-02 model has better quantum efficiency homogeneity over the photocatode and better time proper","authors_text":"The KM3NeT Collaboration","cross_cats":["astro-ph.IM","physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2025-04-03T19:29:02Z","title":"Evaluation of the upgraded 3-inch Hamamatsu photomultiplier for the KM3NeT Neutrino Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.02989","kind":"arxiv","version":3},"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:bafc1aa0531392766fa154b46cc66639fe9264a9ce07dad23cfb09ebf4730119","target":"record","created_at":"2026-07-05T11:37:17Z","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":"0353c40f327dca235d77ac8cd095c4949727261d1b67ee50ebc1e6cd73cdfe77","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2025-04-03T19:29:02Z","title_canon_sha256":"7c678cee805af2a517b6c4309b826ecf3e2d4f0e236b7aca8d5154665c5c4374"},"schema_version":"1.0","source":{"id":"2504.02989","kind":"arxiv","version":3}},"canonical_sha256":"d427166ce0068208f878ac5bc9496038418a441ccd99d41cb254d52fcd427688","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d427166ce0068208f878ac5bc9496038418a441ccd99d41cb254d52fcd427688","first_computed_at":"2026-07-05T11:37:17.838724Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:37:17.838724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fY/BzlOiGQK4eQ2uIoP8BHAxE6K5iTv5+gmVJhjZJ4NTN2N+H+XR7iX/XdAfqlQVrp3L8F7ea3xp70L+DgCeDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:37:17.839257Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.02989","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bafc1aa0531392766fa154b46cc66639fe9264a9ce07dad23cfb09ebf4730119","sha256:bfc45fa3f34c1c76dcb707706592baac35f4be8e28a21d07bb4a9280b51f6dce"],"state_sha256":"8f47c676bf04a6c39e54c8c62c12cbd65e9cd939681635208f2dfb7debaf6f46"}