{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:HLSJCXXVLPUV2QBIUIYAQDOOBP","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":"04f13d769813043d8f7f35c5a7dd362566e796cbd0c0cc97cd2033ecced056c9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2021-02-23T04:55:44Z","title_canon_sha256":"da8434ed5ccf6be253088ca232102ae709b571b06eb04e759c8c7cd37a994341"},"schema_version":"1.0","source":{"id":"2102.11493","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.11493","created_at":"2026-07-05T02:41:15Z"},{"alias_kind":"arxiv_version","alias_value":"2102.11493v1","created_at":"2026-07-05T02:41:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.11493","created_at":"2026-07-05T02:41:15Z"},{"alias_kind":"pith_short_12","alias_value":"HLSJCXXVLPUV","created_at":"2026-07-05T02:41:15Z"},{"alias_kind":"pith_short_16","alias_value":"HLSJCXXVLPUV2QBI","created_at":"2026-07-05T02:41:15Z"},{"alias_kind":"pith_short_8","alias_value":"HLSJCXXV","created_at":"2026-07-05T02:41:15Z"}],"graph_snapshots":[{"event_id":"sha256:a84e999fc0237fa3f3f68f8274898abf9712ac0c95ff6b6bec5b8e615d5820e3","target":"graph","created_at":"2026-07-05T02:41:15Z","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/2102.11493/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We studied the feasibility of an experiment searching for sub-millicharged particles ($\\chi$s) using 30 GeV proton fixed-target collisions at J-PARC. The detector is composed of two layers of stacked scintillator bars and PMTs and is proposed to be installed 280 m from the target. The main background is a random coincidence between two layers due to dark counts in PMTs, which can be reduced to a negligible level using the timing of the proton beam. With $N_\\textrm{POT}=10^{22}$ which corresponds to running the experiment for three years, the experiment provides sensitivity to $\\chi$s with the ","authors_text":"In Sung Hwang, Jae Hyeok Yoo, Jeong Hwa Kim","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2021-02-23T04:55:44Z","title":"Search for sub-millicharged particles at J-PARC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.11493","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:d98d94c2ebe75a08160b862c8b7b2723a11fecedb550ee56af02d4a079d49d3b","target":"record","created_at":"2026-07-05T02:41:15Z","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":"04f13d769813043d8f7f35c5a7dd362566e796cbd0c0cc97cd2033ecced056c9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2021-02-23T04:55:44Z","title_canon_sha256":"da8434ed5ccf6be253088ca232102ae709b571b06eb04e759c8c7cd37a994341"},"schema_version":"1.0","source":{"id":"2102.11493","kind":"arxiv","version":1}},"canonical_sha256":"3ae4915ef55be95d4028a230080dce0be2e6c72348bf2a9319bbd51c33f45b9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ae4915ef55be95d4028a230080dce0be2e6c72348bf2a9319bbd51c33f45b9d","first_computed_at":"2026-07-05T02:41:15.483533Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:41:15.483533Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MAZhbQctFMNIRuKTxHcQbiAup5BjB8lxouqoQOduvgk/PpY5yBSuvH4qCItRwqBDPaoaH4Dvawvgg3W6H0guAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:41:15.484036Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.11493","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d98d94c2ebe75a08160b862c8b7b2723a11fecedb550ee56af02d4a079d49d3b","sha256:a84e999fc0237fa3f3f68f8274898abf9712ac0c95ff6b6bec5b8e615d5820e3"],"state_sha256":"41e49f19711d47bb2a4000d8ec13682e61aed19c0c045546693b85994d7d69c7"}