{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"b88c9662e479670b28d4a883ffed81e5619582525e49fbec61c87dfa3c998759","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"92638954266446faf818c93e01634d38b31c38b447113a41ab1e5b925a1a8114","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"astro.cosmic-ray-antimatter","field":"astro","n":"1","review_cite":"S. Gabici, C. Evoli, D. Gaggero, P. Lipari, P. Mertsch, E. Orlando, A. Strong, A. Vittino, The origin of Galactic cosmic rays: challenges to the standard paradigm, International Journal of Modern Physics D, 2019","review_link":"https://arxiv.org/abs/1903.11584","review_verified":"true","summary":"Space detectors measure cosmic rays, fast charged particles from the Galaxy, with percent precision. The spectra show unexpected bends and more antimatter than simple models predict.","title":"Galactic cosmic-ray spectra and antimatter","topic_ref":null,"why":"These features test how particles are accelerated and transported in the Galaxy and are among the few direct probes of dark matter in our neighborhood."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"9361a52640d12aea0c06eba8ab45c71de10728afb1ce58839faac9301aaf079e","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"3a8b3f70d4a5a098a94358b316b0f562a0f74239aa4d29493716186a49143845","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"bSoYAuRh2PFfzxLTfgY5pHdYazndMZB3gqL65ASo_H_FCcWZ9de54Bc3L8h9-3SdbmmrZDVQMFQVk7YAkeG5BQ"},"schema":"pubphys.envelope/1"},"record_hash":"9361a52640d12aea0c06eba8ab45c71de10728afb1ce58839faac9301aaf079e","leaf_index":33}