{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:V2VU2IMJD7IAZ4EYYJ23HVO5AM","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":"241afa719be99265f45ec547c1bfe009ae8cebabd3d115c51ea03a93ec25e238","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ins-det","submitted_at":"2020-02-24T07:57:56Z","title_canon_sha256":"215be2c6c632922207002c1e68434d1bbbd148d901db0d9af6b1efeac3c7fc16"},"schema_version":"1.0","source":{"id":"2002.10108","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.10108","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"arxiv_version","alias_value":"2002.10108v1","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.10108","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_12","alias_value":"V2VU2IMJD7IA","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_16","alias_value":"V2VU2IMJD7IAZ4EY","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_8","alias_value":"V2VU2IMJ","created_at":"2026-07-05T01:18:52Z"}],"graph_snapshots":[{"event_id":"sha256:f3b292d532f0e71750f944b2d8026f1d43d98625efe46eb26c3c0f8fd294b35b","target":"graph","created_at":"2026-07-05T01:18:52Z","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/2002.10108/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A prototype quasi-parasitic thermal neutron beam monitor based on isotropic neutron scattering from a thin natural vanadium foil and standard $^3$He proportional counters is conceptualized, designed, simulated, calibrated, and commissioned. The European Spallation Source designed to deliver the highest integrated neutron flux originating from a pulsed source is currently under construction in Lund, Sweden. The effort to investigate a vanadium-based neutron beam monitor was triggered by a list of requirements for Beam Monitors permanently placed in the ESS neutron beams in order to provide reli","authors_text":"Alessio Laloni, Fatima Issa, Kalliopi Kanaki, Kevin Fissum, Nicholai Mauritzson, Peter Kadletz, Richard Hall-Wilton, Robin Woracek, Thomas Wilpert, Vendula Maulerova","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ins-det","submitted_at":"2020-02-24T07:57:56Z","title":"Vanadium-based neutron Beam Monitor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.10108","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":"sha256:225696f21f868d4af39ab6107b9a939c00ba4eec8933cacaf378aadcd866b826","target":"record","created_at":"2026-07-05T01:18:52Z","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":"241afa719be99265f45ec547c1bfe009ae8cebabd3d115c51ea03a93ec25e238","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ins-det","submitted_at":"2020-02-24T07:57:56Z","title_canon_sha256":"215be2c6c632922207002c1e68434d1bbbd148d901db0d9af6b1efeac3c7fc16"},"schema_version":"1.0","source":{"id":"2002.10108","kind":"arxiv","version":1}},"canonical_sha256":"aeab4d21891fd00cf098c275b3d5dd03380c2a36139bc18e9e444c331b58ed3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aeab4d21891fd00cf098c275b3d5dd03380c2a36139bc18e9e444c331b58ed3b","first_computed_at":"2026-07-05T01:18:52.206453Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:18:52.206453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ILAIg+Pep5TyYYsfpV5jS3CIq9eXYYtJYHM64EshUbPghJ6+dg8Z+5SmuYDG5kae0ervCCHjoCuVBAqzbL7HAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:18:52.206921Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.10108","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:225696f21f868d4af39ab6107b9a939c00ba4eec8933cacaf378aadcd866b826","sha256:f3b292d532f0e71750f944b2d8026f1d43d98625efe46eb26c3c0f8fd294b35b"],"state_sha256":"dc9cf289b4de37853c88875684740b372ae7c7b700a0bd2c2490323457bdb4b8"}