A token presale is when a particular ICO token is available for sale to certain members before it is publically sold in the ICO itself. Reasons to participate in a pre-sale includes favourable rates as opposed to the ICO.
An acronym for Zero-Knowledge Succinct Non-Interactive Argument of Knowledge, zk-SNARKs refers to a protocol where one can prove posession of a given piece of information (eg a string or hash) without revealing that information and also without any interaction between both the prover & verifier.
It is a bullish signal in technical candlestick pattern by comparing two lines of short-term moving average and long-term average. It is a golden cross when the short term moving average broke its long-term moving average.
In cryptography, a salt is the additional random input that is added to password or passphrase to make the password hash unique. It prevents from the hashed output password to be cracked so easily by the hacker.