Value (V$), also known as Cost of Goods, defines a type of currency, like exchange (E$) and charge (C$).  The registrar converts the E$ used in a transaction by a purchaser into V$ and returns it to the purchaser.  Optionally, the V$ will have information linking it with the actual utility it purchased, and represents your stake of its ownership, and all of its legal entitlement.  V$, like E$, has information linking it with your identity (elaborate).  

The only way to relinquish your ownership is through the registrar by providing exchange, be it from you, or someone else.  If that someone else is not intended to be the owner, you must buy it yourself, which destroys both the cost of goods and the exchange.  You cannot destroy your cost of goods without using your own exchange, even in the case of a cash representation.  ( I don't know about that last paragraph, or the next...I still need to input the idea of Transient dollars into this site, because the design below creates too much wealth distribution to the few)

For example, someone wants to buy something from you and you have V$300 worth of cost of goods towards it, and there are no other stakeholders.  The individual only wants to spend E$200, and wants to be a full owner.  You can sell V$200 of the cost of goods through the registrar to make the new owner own that V$200, and you would get E$200.  However, you still own the remaining V$100, and all of it's legal entitlement, which is not what the purchaser wants.  The seller would need to use E$100 of the E$200 made during the sale to assign nobody as the new owner of the remaining V$100 cost of goods (destroying the E$ and V$) to make it legal.

Cost of goods has another property - whenever you purchase your own cost of goods, the value need not be destroyed and can be assigned to another individual.  This can be used to give someone money when they have no cost of goods to give up or charge to back it up.