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And in those cases there could be censorship and manipulation you're not aware of.

• littlestymaar 5y ago
  Of course, but a city-scale crypto would be centralized anyway: it couldn't be PoW because a 51% attack is way too easy, and in a PoS scheme, the city council (or their technical support company) would almost certainly keep the majority of stakes for themselves.
  • serverholic 5y ago
    They would most likely be ERC-20 tokens built on the ethereum chain. So you inherit the security of the main chain. Also, they don't necessarily need to be centralized. The currency could be run via a DAO and changes to the currency could be voted on.