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Gridcoin is an altcoin mined by using your computer's "spare" processing power, both CPU and GPU, to process scientific data by BOINC (distributed computing)

An example of BOINC processing is the SETI@home project.

Here is an earlier post of mine
https://steemit.com/gridcoin/@stevescoins/gridcoin-and-steemit-as-engines-of-democratic-techno-conomy

But you will really get some useful info by checking out the #gridcoin tag

It does not have the semi-anonymity built in that BTC does, but it doesn't require a hardware investment as long as you have a computer, or even a tablet, of some sort.
(You could work in an anonymous account, but you'd need to be up on your privacy game to do so)

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