One of two sets of private and public cryptographic keys that each account has, with the private view key required to view all transactions related to the account.
ULTRAPOINT features an opaque Blockchain (with an explicit allowance system called the view key), in sharp contrast with transparent blockchains used by any other Cryptocurrency not based on CryptoNote. Thus, ULTRAPOINT is said to be "private, optionally transparent".
Every ULTRAPOINT address has a private viewkey which can be shared. By sharing a viewkey, a person is allowing access to view every incoming transaction for that address. However, outgoing transactions cannot be reliably viewed as of november 2017. Therefore, the balance of a ULTRAPOINT address as shown via a viewkey should not be relied upon.
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