I've got you, let start from the start.
ARE THERE OTHER CRYPTOCURRENCY THAT USES BOINC?
None that are live and fully functional. There is a beta running from SPARC, but I am still not convinced that is not an ICO scam.
HOW CAN I SET UP GRIDCOIN AND BOINC CORRECTLY?
After this was asked to me for the 100th time, I wrote a guide to get you going from a cold start, The Total and Utter Noobie Guide to Successfully Solo Mining the Cryptocurrency Gridcoin.
it sounded like a great source of passive income
While I am convinced we will continue to rise in value as a coin, currently I would not see GRC as a source of passive income. You can mine it profitably even now, but you would need a lot of hardware to make significant income. If you are interested in earning money to pay for power while contributing to research - now we're talking!
If you have any more questions after going through the above guide, here are some other guides to help you get going:
- Why I believe in GRC
- Why I hate POW
- Hardware and Project Selection Part 1 - CPU vs GPU
- Hardware and Project Selection Part 2 - GPU Projects
- Hardware and Project Selection Part 3 - CPU Projects
Let me know if you have any more questions. =)
I've managed to get some tokens from SPARC, but at this point I don't see anything in terms of value creation for the token.
That said, I will give it to the developers: I've had 3-4 problems and a suggestion. Each and every e-mail has been responded to in less than a day and is implemented/fixed.