entity_id,source_id,evidence_type,source_note
ENT_STYX,SRC_HESIOD_THEOGONY,direct attestation,"Theogony 361, 383-403, 775-806: Styx is an Oceanid, eldest daughter of Oceanus and Tethys; she was the first to aid Zeus against the Titans and in return Zeus made her waters the great oath of the gods; Theogony 775-806 describes her underground domain in great detail; Hesiod provides the most extensive ancient account of Styx as both a goddess and an oath-mechanism"
ENT_STYX,SRC_THEOI_HOME,index attestation,"Attested in Theoi Project index (Greek gods, spirits, heroes in classical literature)."
ENT_STYX,SRC_THEOI_UNDERWORLD,index attestation,Literary attestation in classical/mythographic tradition; cult evidence varies by entity.