As layman I think it's appropriately prepared and can be easily understood. Below are just my own personal taste, etc.
"The calculation took only 70 minutes of its massive distributed computing power,"
"In this context, innovators in the field of cryptography and virtual currencies delved into the concept of systems that could secure their transactions and at the same time doing valuable scientific computations than just hash functions. Riecoin is one such endeavor and it calculates prime sextuplets every 2.5 minutes."
"thus these results are interesting to researchers of number theory and other applied fields."