Stock brokers track perfectly the transfer of people rights to stocks millions of times a day without any decentralized ledger. In fact, a SQL DB has worked quite well for many years now.
If the wine cellar wants their customers to trade wine, I'm sure a centralized ledger based on a SQL DB would be much easier and cheaper to implement and scale to millions of transactions.
Yeah, that's surely trustless. And I totally trust the wine company to perpetually maintain and pay for such a thing, and totally not restrict the secondary market as has happened all the time.
> In fact, a SQL DB has worked quite well for many years now.
When you allow people to write their own smart contracts, bugs will happen. This can't be fixed, only dampened with a weakened interface to the blockchain.
When a bug in a smart contract happens you may now have a dispute, across borders, over the intent of the smart contract and the actual behavior.
Can I trade my wine in the weekend? Ah no, sorry, stock market is closed then.
Can I trade my wine at 5pm? Ah no, European wine stock market is closed then.
When you really 'own' the ticket, you can trade it anywhere you want, without being dependent on some exchange that's only open whenever and takes some fixed cut without any competition.
The fact that you can't trade on weekends is not because some technological problem, it's because there's no demand for trading on weekends. Do you think the technology suddenly stops working on weekends?
Yes, this is probably what you'd do in this hypothetical case, and it's hardly unheard of for contracts to be written up with transferability clauses. Given that we exist in a world where digital signatures also exist, it's unlikely to be particularly onerous.
("Continuously" is probably not the right word, unless you are envisioning the rather unlikely case of this transfer happening on an annual basis!)
Sure, or if you're willing to trust an electronic database you can put it in an electronic database. How do you think wholesalers buy and sell wine at the moment?