Yes.

But also, how can you make digital payment work without one? Not a rhetorical question by the way, legitimately don’t know. llmost seems impossible.

My thought process:

• You need to verify transactions aren’t fraudulent
  • source of trust on this can’t be centralized, thats what visa/mastercard are
• You need to be able to calculate a balance
  • traditional currency does this by physically possessing things
    • you can’t “own” data; it’s fungible i.e. it can be copied trivially. If I copy my wallet onto your computer, who owns it?
  • digital currency gets around this with a ledger
    • that’s the detailed log of transactions
  • ???