{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:OMQDXLBXBBDS3FIXV2SCM46H5C","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":"033a8768b9cf10a521aebda605f52ae1bfe5716d1deb5214ef0cf03c31cbbfe5","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2007-03-12T17:58:37Z","title_canon_sha256":"9aaa09ee279a8d37b17071054a5bb9d6db838d558da857d660b8f340e7dc9f23"},"schema_version":"1.0","source":{"id":"hep-ph/0703128","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0703128","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0703128v1","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0703128","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"OMQDXLBXBBDS","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_16","alias_value":"OMQDXLBXBBDS3FIX","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_8","alias_value":"OMQDXLBX","created_at":"2026-07-04T17:08:31Z"}],"graph_snapshots":[{"event_id":"sha256:7caa7ace2b77df62c59f2e7b1c1c2aeacfd4a9f254cd17881d8e5e41542e76d8","target":"graph","created_at":"2026-07-04T17:08:31Z","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/hep-ph/0703128/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider possible mechanisms via which electroweak scale WIMPs \\chi^0 could provide the source of the INTEGRAL/SPI 511 keV photon flux from the galactic centre. We consider scenarios where the WIMP spectrum contains near-degeneracies, with MeV-scale splitting, and focus on three possible production mechanisms for galactic positrons: (i) collisional excitation of the WIMP to a nearby charged state, \\chi^0 + \\chi^0 -> \\chi^+ + \\chi^-, with the subsequent decay producing positrons; (ii) capture of the WIMP by nuclei in the galactic interstellar medium, \\chi^0 + N -> e^+ + (\\chi^- N); and (iii)","authors_text":"Adam Ritz, Maxim Pospelov","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2007-03-12T17:58:37Z","title":"The galactic 511 keV line from electroweak scale WIMPs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0703128","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":"sha256:3825446a02267dece68265d50cecd46c1ba8bbc4f4c55f9bf49330075f88e204","target":"record","created_at":"2026-07-04T17:08:31Z","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":"033a8768b9cf10a521aebda605f52ae1bfe5716d1deb5214ef0cf03c31cbbfe5","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2007-03-12T17:58:37Z","title_canon_sha256":"9aaa09ee279a8d37b17071054a5bb9d6db838d558da857d660b8f340e7dc9f23"},"schema_version":"1.0","source":{"id":"hep-ph/0703128","kind":"arxiv","version":1}},"canonical_sha256":"73203bac3708472d9517aea42673c7e8b5cfacfaa00c3206d258b49dc5b6aa05","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"73203bac3708472d9517aea42673c7e8b5cfacfaa00c3206d258b49dc5b6aa05","first_computed_at":"2026-07-04T17:08:31.533531Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:08:31.533531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NsUHhPCq7TrqQEfePeTSTdb3RBftxdMDOu8BRh+ni70cEArn5lrCMrdFpzb6btOpB0LdVJYQ2JXgx2pdJh/5Bw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:08:31.533945Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0703128","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3825446a02267dece68265d50cecd46c1ba8bbc4f4c55f9bf49330075f88e204","sha256:7caa7ace2b77df62c59f2e7b1c1c2aeacfd4a9f254cd17881d8e5e41542e76d8"],"state_sha256":"4b2f004db395123d87bdc32aa6a49488b3b9e6efee4d94b49637663f064beebb"}