#CEXvsDEX101 hash tag" and "coin pair" are distinct concepts in the world of cryptocurrency.

Hash Tag:

* A "hash tag" (or simply "hashtag") is primarily a social media convention used to categorize content and make it discoverable. For example, #cryptocurrency or #Bitcoin.

* In the context of cryptocurrency, the term "hash" refers to a cryptographic hash function. This is a mathematical algorithm that takes an input (like transaction data) and produces a fixed-size, unique string of characters (the "hash" or "transaction hash").