Patient provides to HAP his attributes $a_1,\cdots ,a_n$ and attach them to k₀

I.1 Patient $\to$ HAP : $k_0,\left(a_1,v_1\right),\cdots ,\left(a_n,v_n\right)$

Patient saves in his wallet the necessary information allowing him to request the values of attributes $a_1,\cdots ,a_n$

I.2 Patient $\to$ Wallet : HAP, $a_1,\cdots ,a_n$ , k₀; ${\left\{k_0^{-1}\right\}}_{pwd}$

HAP saves in his database collected EMR and attaches it to k₀

I.3 HAP $\to$ HAP-DB : k₀, $\underset{EMR}{\underbrace{\left\{\left(a_1,{\upsilon }_1,T_1\right),\cdots ,\left(a_n,{\upsilon }_n,T_n\right)\right\}k}}$ , ${\left\{k\right\}}_{k_c}$