{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:4ULUY4YMIHESH7LIR2ZY73ZURX","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":"d698535e676982f5a89bbe4de1ee8a28144ca0b0e7b99c498d0ec4161b2cee2d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-02-01T11:33:03Z","title_canon_sha256":"764de7354467aac89c875fbcbe8afbb5c16b057617674e84dba01b6a40b5fe75"},"schema_version":"1.0","source":{"id":"1002.0229","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.0229","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"1002.0229v2","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0229","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"4ULUY4YMIHES","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"4ULUY4YMIHESH7LI","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"4ULUY4YM","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:404f4876c30f9c7eaa3f2316693bbefb4292cde15b584ec0163944f5e0c3c775","target":"graph","created_at":"2026-05-18T02:33:48Z","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"},"paper":{"abstract_excerpt":"We determine upper limits on the dark matter (DM) self-annihilation cross section for scenarios in which annihilation leads to the production of electron--positron pairs. In the Galactic centre (GC), relativistic electrons and positrons produce a radio flux via synchroton emission, and a gamma ray flux via bremsstrahlung and inverse Compton scattering. On the basis of archival, interferometric and single-dish radio data, we have determined the radio spectrum of an elliptical region around the Galactic centre of extent 3 degrees semi-major axis (along the Galactic plane) and 1 degree semi-minor","authors_text":"Csaba Bal\\'azs, David I. Jones, Nicole F. Bell, Roland M. Crocker","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-02-01T11:33:03Z","title":"Radio and gamma-ray constraints on dark matter annihilation in the Galactic center"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0229","kind":"arxiv","version":2},"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:ca711037bbcc2caded0e5085d7970181c7fe9c552a93256502f8e12480f47630","target":"record","created_at":"2026-05-18T02:33:48Z","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":"d698535e676982f5a89bbe4de1ee8a28144ca0b0e7b99c498d0ec4161b2cee2d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-02-01T11:33:03Z","title_canon_sha256":"764de7354467aac89c875fbcbe8afbb5c16b057617674e84dba01b6a40b5fe75"},"schema_version":"1.0","source":{"id":"1002.0229","kind":"arxiv","version":2}},"canonical_sha256":"e5174c730c41c923fd688eb38fef348dd324621cb0ffbf484f78ab49035bdb1e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5174c730c41c923fd688eb38fef348dd324621cb0ffbf484f78ab49035bdb1e","first_computed_at":"2026-05-18T02:33:48.868866Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:48.868866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tEm92gM0PJtJrLdDdDfsTUCT4KVa/rFN4DdKwFsL1a85Xp3CtALs6Ywt9I0aEx7UMpkLSsHKOEhlr/CtK2Q9Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:48.869425Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.0229","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca711037bbcc2caded0e5085d7970181c7fe9c552a93256502f8e12480f47630","sha256:404f4876c30f9c7eaa3f2316693bbefb4292cde15b584ec0163944f5e0c3c775"],"state_sha256":"151514d48894b22fc25efac6922695875f6847e18b1094f6ac1df7b025c8508d"}