Blockchain across Oracle

Unexpected security risks

Much like cryptocurrencies themselves, one thing that public blockchains have led to is black market trading (reference: https://lifehacker.com/what-to-know-about-monero-the-black-market-cryptocurre-1822558727). Everybody can read and write transactions, and they can do this anonymously. Because transactions are bound to an address and not a personal identity, it is hard to figure out who is actually trading. Public blockchains also increasingly attract the attention of cyber criminals who wish to steal cryptocurrencies or other available assets.

Another security risk associated with a public blockchain is that the commonly-used method of reaching consensus consumes a lot of energy. This may lead to centralization ...