{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:2MXMH3S75TK5L2VU5FIGG2C6DL","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":"783f4b9331a59e4287c6fa0df1777d7a50420bdc13b575dc1ebfbea544278aa0","cross_cats_sorted":["hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2023-07-05T16:26:50Z","title_canon_sha256":"265329fe96f0ca74b9856b29958d4ce36b5aa3735a166f6d68dc0b47a729c2a8"},"schema_version":"1.0","source":{"id":"2307.02404","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.02404","created_at":"2026-07-05T06:28:08Z"},{"alias_kind":"arxiv_version","alias_value":"2307.02404v1","created_at":"2026-07-05T06:28:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.02404","created_at":"2026-07-05T06:28:08Z"},{"alias_kind":"pith_short_12","alias_value":"2MXMH3S75TK5","created_at":"2026-07-05T06:28:08Z"},{"alias_kind":"pith_short_16","alias_value":"2MXMH3S75TK5L2VU","created_at":"2026-07-05T06:28:08Z"},{"alias_kind":"pith_short_8","alias_value":"2MXMH3S7","created_at":"2026-07-05T06:28:08Z"}],"graph_snapshots":[{"event_id":"sha256:fbb16aff342f5e043069bfadc3a2920cf0b8f53b9ec3d364f58e5e229796be87","target":"graph","created_at":"2026-07-05T06:28:08Z","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/2307.02404/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Thermal dark matter models with particle $\\chi$ masses below the electroweak scale can provide an explanation for the observed relic dark matter density. This would imply the existence of a new feeble interaction between the dark and ordinary matter. We report on a new search for the sub-GeV $\\chi$ production through the interaction mediated by a new vector boson, called the dark photon $A'$, in collisions of 100 GeV electrons with the active target of the NA64 experiment at the CERN SPS. With $9.37\\times10^{11}$ electrons on target collected during 2016-2022 runs NA64 probes for the first tim","authors_text":"A. Celentano, A. E. Karneyeu, A. Gardikiotis, A. G. Chumakov, A. Marini, A. N. Toropin, A. S. Zhevlakov, A. V. Dermenev, A. Yu. Trifonov, B. Banto Oberhauser, B. I. Vasilishin, B. Ketzer, B. Radics, D. Banerjee, D. Cooke, D. Shchukin, D. V. Kirpichnikov, D. V. Peshekhonov, E. A. Kasianova, E. Depero, G. D. Kekelidze, H. Sieber, I.V. Tlisova, I. V. Voronchikhin, J. Bernhard, J. Zamora-Saa, K. M. Salamatin, L. Marsicano, L. Molina Bueno, L. V. Kravchuk, M. H\"osgen, M. M. Kirsanov, M. Mongillo, M. Tuzi, N. Charitonidis, N. V. Krasnikov, O. Soto, P. Bisio, P. Crivelli, P. V. Volkov, R. B. Galleguillos Silva, R. G. Mena Yanssen, R. Mena Fredes, R. R. Dusaev, S. Girod, S. N. Gninenko, S. V. Donskov, S. V. Gertsenberger, S. V. Kuleshov, T. Enik, V. A. Kachanov, V. A. Kramarenko, V. A. Matveev, V. A. Polyakov, V. D. Samoylenko, V. E. Lyubovitskij, V. Lysan, V. N. Frolov, V. N. Kolosov, V. O. Tikhomirov, V. Yu. Volkov, Y. Kambar, Yu. M. Andreev","cross_cats":["hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2023-07-05T16:26:50Z","title":"Search for Light Dark Matter with NA64 at CERN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.02404","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":"sha256:9d47f9942a4a2f4d16345a361c077d6a0f7da85838efcf76817866140855d1f2","target":"record","created_at":"2026-07-05T06:28:08Z","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":"783f4b9331a59e4287c6fa0df1777d7a50420bdc13b575dc1ebfbea544278aa0","cross_cats_sorted":["hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2023-07-05T16:26:50Z","title_canon_sha256":"265329fe96f0ca74b9856b29958d4ce36b5aa3735a166f6d68dc0b47a729c2a8"},"schema_version":"1.0","source":{"id":"2307.02404","kind":"arxiv","version":1}},"canonical_sha256":"d32ec3ee5fecd5d5eab4e95063685e1ac6c2bf40c652520afe86762ccb361cb7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d32ec3ee5fecd5d5eab4e95063685e1ac6c2bf40c652520afe86762ccb361cb7","first_computed_at":"2026-07-05T06:28:08.730988Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:28:08.730988Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bjbmoMaoZVjD0gnCJAFbdfAKHu4VskuEKsoXI34ApNfjimUXAR2VmHg8j+xK9LvSLSu5LEXVEeQ2t0IgUdu5AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:28:08.731484Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.02404","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d47f9942a4a2f4d16345a361c077d6a0f7da85838efcf76817866140855d1f2","sha256:fbb16aff342f5e043069bfadc3a2920cf0b8f53b9ec3d364f58e5e229796be87"],"state_sha256":"ff1b1ff731a20cc32a499ab661cf8b4fb953632ba0eda32c59ec11d5b96379ae"}