Yes, however that ZEC is not “wrapped”– its sitting in an address that is controlled by someone. Nothing on CKB can prevent that ZEC from moving.
In a bridge example, the signers control the ZEC.
RGB++ is useful for trading a native asset for a user-generated asset, like Stable++ or a Nervape in exchange for BTC, but it doesn’t work for Defi things on another chain, which you would need a wrapped asset for.
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There may be some sort of derivative agreements that make things closer to Defi possible in the RGB++ kind of paradigm but no one has taken up this research task.
MVB ( Minimum Viable Borrowing (MVB) on CKB ) and Warranty Contract ( [V0 Looking for feedback] Warranty Contract, a next-gen DeFi Primitive ) are the seeds of this kind of thing but there is a lot more work to do to figure out how a financial system can be constructed with these kind of primitives (which would be some action that is conditionally enforced if say the ZEC moves on ZCash before a certain date).