{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:66GVGFDXDTJTDF26PMC2VVMSMI","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":"2d1b2d0987230bfceb31496dff2828f8faf234d5950a3749596b483ccabdd33c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-08-12T07:39:38Z","title_canon_sha256":"bb74dd3c99e749ab7aa202aaaabdb19854fcb476ff348dfd1f18872cc0e55de1"},"schema_version":"1.0","source":{"id":"2508.08695","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.08695","created_at":"2026-07-05T11:52:32Z"},{"alias_kind":"arxiv_version","alias_value":"2508.08695v1","created_at":"2026-07-05T11:52:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.08695","created_at":"2026-07-05T11:52:32Z"},{"alias_kind":"pith_short_12","alias_value":"66GVGFDXDTJT","created_at":"2026-07-05T11:52:32Z"},{"alias_kind":"pith_short_16","alias_value":"66GVGFDXDTJTDF26","created_at":"2026-07-05T11:52:32Z"},{"alias_kind":"pith_short_8","alias_value":"66GVGFDX","created_at":"2026-07-05T11:52:32Z"}],"graph_snapshots":[{"event_id":"sha256:5c921dfe63da0386b6020818aae692e81cf456124c32b15ef6878a9104885513","target":"graph","created_at":"2026-07-05T11:52:32Z","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/2508.08695/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We explore the indirect detection of sterile neutrino dark matter within the gauged $U(1)_{B-L}$ extension of the Standard Model, in which three right-handed neutrinos account for neutrino masses, the baryon asymmetry, and dark matter. Focusing on the MeV mass range, we investigate two decay channels: the radiative decay $N \\to \\nu \\gamma$, which produces a monochromatic photon, and the three-body decay $N \\to e^- e^+ \\nu$, which leads to a 511 keV photon signal from positronium decay. Taking the upcoming COSI mission as a case study, we show that both signals are experimentally accessible and","authors_text":"Shigeki Matsumoto, Subaru Fujisawa, Tatsuya Hayashi, Yuki Watanabe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-08-12T07:39:38Z","title":"Detecting Sterile Neutrino Dark Matter at MeV Gamma-Ray Observatories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.08695","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:b490396574b8b1ddda95b2efe2bc77987fefa9056166e2c752e4c84ce9bb3c8c","target":"record","created_at":"2026-07-05T11:52:32Z","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":"2d1b2d0987230bfceb31496dff2828f8faf234d5950a3749596b483ccabdd33c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-08-12T07:39:38Z","title_canon_sha256":"bb74dd3c99e749ab7aa202aaaabdb19854fcb476ff348dfd1f18872cc0e55de1"},"schema_version":"1.0","source":{"id":"2508.08695","kind":"arxiv","version":1}},"canonical_sha256":"f78d5314771cd331975e7b05aad592622a15417cc443390e239291b3be8c3369","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f78d5314771cd331975e7b05aad592622a15417cc443390e239291b3be8c3369","first_computed_at":"2026-07-05T11:52:32.473886Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:52:32.473886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n8GIgIq4ibmH43XdFPf3j1TRXF7DpbinDIqx7/Ty/H7IArP/YoElFaPSqN0GmhIWE9UIn9kTlcS7LizS5dxjBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:52:32.474507Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.08695","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b490396574b8b1ddda95b2efe2bc77987fefa9056166e2c752e4c84ce9bb3c8c","sha256:5c921dfe63da0386b6020818aae692e81cf456124c32b15ef6878a9104885513"],"state_sha256":"580f3d0417c9f7e635a7314ec317057001c0e4ff71be09c46bd0a2118967ba84"}