The wedge refers to short-term graphical price patterns of trend continuation indicating that its direction will remain unchanged in the near future. For example, on the daily chart the pattern is often formed within a week or two.
Proof of Work (PoW) is an algorithm that rewards the first person that solves a computational problem (mining) to achieve distributed consensus.
A way of storing your cryptocurrency.
Proof of Stake (PoS) is an algorithm by which a cryptocurrency’s blockchain aims to achieve distributed consensus.