<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.na mkataba wa smart rekodi ya matibabu ya mgonjwa itasimbwa na kuhifadhiwa kwenye blockchain na kitufe cha kibinafsi, ni wale tu walio na ufunguo ambao wanaweza kupata rekodi.  <response>: for e.g. health care in the blockchain healthcare personal health records could be encoded and stored on the blockchain with a private key which would grant access only to specific individuals. 