Primecoin is described as 'innovative cryptocurrency, a form of digital currency secured by cryptography and issued through a decentralized mining market. Derived from Satoshi Nakamoto’s Bitcoin, Primecoin introduces an unique form of proof-of-work based on prime numbers' and is a Cryptocurrency Coin in the Bitcoin & Cryptocurrency category. There are more than 50 alternatives to Primecoin, not only websites but also apps for a variety of platforms, including Linux, Mac, Windows and Android. The best alternative is Bitcoin, which is both free and Open Source. Other great sites and apps similar to Primecoin are Monero (Free, Open Source), Ethereum (Free, Open Source), Litecoin (Free, Open Source) and NameCoin (Free, Open Source).
"BEAT-ASICS" is the aim of Vertcoin. By keeping mining in the hands of the masses, it is truly the only long-term distributed crypto-currency that will ensure fair and decentralised transactions. Bitcoin has failed. Litecoin is failing.
ZCore was born out of a desire to create a cryptocurrency that is truly accessible to everyone and revolutionize the cryptocurrency market. We believe that a truly useful currency is one that is easily used by anyone.
Idena is a novel way to formalise people on the blockchain without personally identifiable information. Idena proves the humanness and uniqueness of its participants by running an AI-resistant test at the same time for everyone around the globe.