{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"aa1de658546bf4d1a4c926e0727cfa670d312a0ca44c087875075647bef97682","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"38d7cd6be9ab4550e69098c26ead7fd29a0a3baae249e47459671ed2ce185abc","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"astro.high-energy-neutrino-sources","field":"astro","n":"1","review_cite":"M. Ahlers, F. Halzen, Opening a new window onto the universe with IceCube, Progress in Particle and Nuclear Physics, 2018","review_link":"https://doi.org/10.1016/j.ppnp.2018.05.001","review_verified":"true","summary":"Neutrinos (nearly massless particles that pass through matter almost untouched) arrive from space with energies from about 1e13 eV to about 2e17 eV. Only a few sources have been identified, and most of the flux has no known origin.","title":"Sources of high-energy astrophysical neutrinos","topic_ref":null,"why":"Neutrinos travel in straight lines from where cosmic rays collide with matter or light, so they point back to the accelerators."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"05faf7b2786da464712d8108b8ce0e3e18f89534b1760bb4d3030768e35f2a73","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"49d83d641bbec3f13a225c201fde6a060076c7af1f834e0aefe19a8d80491a41","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"2e9G9zVS3LmMv7ILXhVBmC7MAC9ZUfgW24q2CvlhCE9UTC7i2rRP2zgkQhTmGC_q6MSsmp3w1qvpnXMvI5ldDA"},"schema":"pubphys.envelope/1"},"record_hash":"05faf7b2786da464712d8108b8ce0e3e18f89534b1760bb4d3030768e35f2a73","leaf_index":41}