You don’t mint globally. You have reputable mints with understood purities of metals in the coins. The most successful mints are state mints (US coins, Canadian coins, British Coins) because the reputation of the people and their ability to trade is tied to the purity of their coins. Private mints don’t get the same traction but can still compete largely for reserve status rather than daily trade.

This works best when you have high trust societies with enforced borders. (This has been a challenge over the past twenty years globally. Some may say this is being done by design.) Within those borders, counterfeiting is punished.

You’re asking questions like “how will this work” when commerce is and was conducted in this fashion for long periods of time.

Key management for crypto is ridiculous. The attack surface is global. Theft can’t even be prosecuted due to the coin mixers everyone here praises. The result is everyone is just a “zapper” with off chain “trust me bro” transactions facilitated by Strike.

Primal and NOSTR will be remembered, in hindsight, as marketing arms for privatized central digital currencies claiming to be facilitated with Bitcoin. We are joyously enslaving ourselves to a global tyranny.