Have you heard about a global Cashu ledger? ;)

no, the whole point of bitcoin is that it's money and that means it has to be a global ledger, in order for its supply to be limited... it's the realisation of ideas from Mises and Hayek there is no need for a global ledger for a server that one person is responsible for and providing for a limited set of users, it's a different structure, in terms of law, money cannot be a trust, but any enterprise can be a trust because a trust must have a bounded set of beneficiaries any kind of "currency" that is still a trust is not money in the sense of gold coins are always going to be worth something because they are durable, portable, scarce and verifiable bitcoin's got all of these properties

Just googled it, a bitcoin derivative. So there is bitcoin but it's hidden a bit. An attempt to hide bitcoin's Achilles heel, the global ledger? Banks in my town create fiat money by lending it into existence and keep a ledger who in my town has what balance. There are several banks to choose from. Decentralization in the real world.

Is bitcoin better money because of those properties? Sure. Are those properties a requirement for money? No. History is full of moneys that didn't offer much but were still highly used. Is a global unified ledger a requirement? No, you can have sharded ledgers everywhere. They can all be different from one another. Does it exist today? No. Could it exist? For sure. Do we know how to build it? No. Just because things are the way they are doesn't mean that better things cannot exist. I don't know if we will see something better than Bitcoin in my lifetime, but there is no mathematical proof that a better system can't exist. Let's give it another 100 years and check in later. My bet is that Bitcoin will last as long as other global reserve currencies have lasted. Then somebody will have a true new idea.