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.



NovaCoin is described as 'Novacoin is the coin of the feature. It's unique way of utilizing both Proof-of-Work and Proof-of-Stake for block generation with separated target limits make it stand out' and is a cryptocurrency coin in the bitcoin & cryptocurrency category. There are more than 50 alternatives to NovaCoin, not only websites but also apps for a variety of platforms, including Linux, Mac, Windows and Android apps. The best NovaCoin alternative is Monero, which is both free and Open Source. Other great sites and apps similar to NovaCoin are Bitcoin, Ethereum, Litecoin and NameCoin.
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.



Created in June 2013, it was the first coin that provided built-in support for the I2P darknet that makes it impossible to determine the IP address of the user. Anoncoin also has built in support of Tor, which can help conceal your location and keep your internet traffic private.
Decred is an open and progressive cryptocurrency with a system of community-based governance integrated into its blockchain.


The Rapids ( $RPD ) cryptocurrency is a contemporary solution for social payments. The Rapids project features rapid payments across social media through a secure network driven by cryptography and community.



Only 42 Coins will ever be mined. How many will you hold? Start mining 42 right away... before you can't mine any more.
Verge Currency is a cryptocurrency designed for everyday use. It improves upon the original Bitcoin blockchain and aims to fulfill its initial purpose of providing individuals and businesses with a fast, efficient and decentralized way of making direct transactions while...
Bitcoin Unlimited is a fork of the Bitcoin Core client, giving the miners and users the opportunity to determine the block size limit themselves.
NEM's blockchain platform was designed and coded from the ground up for scale and speed. NEM's permissioned private blockchain delivers industry-leading transaction rates for internal ledgers.
NERVA (XNV) is an untraceable and secure cryptocurrency aim to be GPU and ASIC resistant via the new Cryptonight Adaptive POW algorithm. NERVA offers true privacy and fungibility, is untraceable and unlinkable, with users and transfer amounts hidden.
CureCoin is a CryptoCurrency based on coupling SHA-256 Mining and Folding@Home Protein Folding.