The seller can present as much C$ and V$ to set how much the sale of the utility will earn them in E$.

Once sold, the registry converts the C$ and V$ into E$ and gives it back to the seller.

The seller can present as much C$  and V$ as they would like so long as the purchaser backs them up with an amount of E$ they have the will to spend given the following equation:

Let S = Number of units in the category as committed by all individuals in that registry

Let E_C$ = Amount of E$ the purchaser has the will to spend that the seller will reconcile with C$

Let E_V$ = Amount of E$ the purchaser has the will to spend that the seller will reconcile with V$

Let E$ = Total amount of E$ the purchaser must present to purchase the utility

E$ = E_C$ + E_V$

E_C$  * S = C$

E_v$ = V$

If the seller wants more E$ than they have C$ or V$ to reconcile the transaction (for example, during moments of competition), the buyers can purchase Transient E$ for the seller.  The buyer can use their own Transient E$ whenever E$ is used in the formula above.

Once the transaction is complete, the buyer's E$ is converted into V$, and the buyer's Transient E$ is destroyed.