i plan to setup a environment to exchange the stocks of 3 companies, let's say A, B, C company stocks,
and all can exchange with a virtual coins (also in multi-chain)
could someone can help where i can find the reference information about
how do i start to do with 4 chains in multi-chain
and how do i guarantee one exchange the stocks and also exchange the coins at the same time ??
that is ,
if X buy A company stocks from Y
Y will transfer A company stocks to X
and at the same time
X will transfer the coins to Y
any one help ??
thanks in advance