I'm learning about quantum cheque. And I read "Experimental realization of quantum cheque using a five-qubit quantum computer" which is written by Bikash K. Behera ,Anindita Banerjee and Prasanta K. Panigrahi. Then I have a question about FIG.5 in this paper. FIG.5 shows IBM quantum circuit used to generate the quantum cheque state. Is this a quantum circuit where the bank is passing one entangled qubit in a GHZ triplet state to the account holder?
The mentioned FIG.5: