With over 500 alt-coins in existence, it's important to be able to discern which are valid and which are scams. Let's look at a few important aspects to consider before buying into an alt-coin.
As an easy gauge to start with, the developer's activity is helpful when evaluating the legitimacy of a coin. By checking the public repositories of the source code, such as GitHub, one can see when the coin was made public, the contributions made to the code, and the activity level of the community.
As a reference, the GitHub repositories for the alt-coins discussed in this chapter are listed next: