Has anybody read or heard anything in the agreement that STOPS Iran from working toward or completing a nuclear weapon?

Since they have gone to great lengths to bury and harden where their nuclear work is done.....is it feasable they also have facilities not known to anybody?

A country, Iran, that has sworn to eradicate Israel....has sworn to not deal with infidels.....has sworn to kill Americans and destroy American assets....
openly sponsoring and supported terrorism worldwide.....has stated during the negotiations Iran will not be denied it's nuclear rights....

this is a country to be trusted? By who/whom?