{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"35dd51fcf6ad672289672a42367fea35ebde701c76c2ad43e9beccfc61db57de","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"52b66777bbd1675fbfd0882a6f720c3da565a862397d8d334e1a7811ec2bf492","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"cosmo.dark-matter-identity","field":"cosmo","n":"1","review_cite":"Bertone G., Hooper D., Silk J., Particle dark matter: evidence, candidates and constraints, Physics Reports, 2005","review_link":"https://arxiv.org/abs/hep-ph/0404175","review_verified":"true","summary":"About 85 percent of the matter in the universe neither emits nor absorbs light and is detected only through its gravity. Nobody knows what it is made of: a new elementary particle, a very light wave-like field, or black holes formed in the early universe.","title":"Particle identity of dark matter","topic_ref":null,"why":"Identifying dark matter would reveal physics beyond the Standard Model and fix the initial conditions for all cosmic structure."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"f3bf70488fa9272a7f437ab80aa4c3a6b7aa08c428f06c436d4e947e2dc94a69","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"eb98aa55134f51fb2f12c22c70f8488170361aee45e12a54c1a79112b19f9896","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"S6VrkxpQnVeX3MkSqqjTUjSgFdKxH_OgR9s5vSbGfqYGnJH4BZqSn8gMuk_qqxErTvWAt97BifrOpg9lIBxKBw"},"schema":"pubphys.envelope/1"},"record_hash":"f3bf70488fa9272a7f437ab80aa4c3a6b7aa08c428f06c436d4e947e2dc94a69","leaf_index":186}