It is interesting how technology gives a new lease to old principles. The medieval banking systems relied heavily on bearer instruments to assert ownership of financial assets, and this has over time be replaced with centralised registers. Now we see the rise of a new class of bearer instruments, eg via Corda, or now via CloudCoin which uses a very different – and in many respects much more pedestrian – way of avoiding the double spend problem.

  1. https://cointelegraph.com/news/blockchain-free-cloudcoin-claims-secure-email-to-email-transactions
  2. https://cloudcoin.global
  3. https://cloudcoin.global/uploads/CloudCoinWhitePaper2020.pdf

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