Bitcoin is a peer-to-peer digital currency. Peer-to-peer (P2P) means that there is no central authority to issue new money or keep track of transactions. Instead, these tasks are managed collectively by the nodes of the network.



Idena is described as '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' and is a cryptocurrency coin in the bitcoin & cryptocurrency category. There are more than 50 alternatives to Idena for a variety of platforms, including Linux, Mac, Windows, Web-based and Android apps. The best Idena alternative is Bitcoin, which is both free and Open Source. Other great apps like Idena are Monero, Ethereum, Litecoin and DASH.
Bitcoin is a peer-to-peer digital currency. Peer-to-peer (P2P) means that there is no central authority to issue new money or keep track of transactions. Instead, these tasks are managed collectively by the nodes of the network.



Monero is a digital currency that is secure, private, and untraceable. It is open-source and freely available to all. With Monero, you are your own bank. Only you control and are responsible for your funds, and your accounts and transactions are kept private from prying eyes.



Ethereum is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference.





DASH is an open source peer-to-peer cryptocurrency that uses a system called Darksend to add privacy to transactions.
Dogecoin is an open source, decentralized, peer-to-peer cryptocurrency, favored by Shiba Inus worldwide.

Cardano is a Proof-of-Stake L1 blockchain platform - the first to be founded on peer-reviewed research and developed through evidence-based methods.




Digital advertising is broken.
It is a market filled with middlemen and fraudsters, hurting users, publishers and advertisers. The Basic Attention Token (BAT) was developed to address this. BAT, is an ERC20 token built on top of Ethereum.


Bitcoin Cash is a peer-to-peer electronic cash system. It's a permissionless, decentralized cryptocurrency that requires no trusted third parties and no central bank.




Firo is a digital currency with a focus on setting privacy standards.
One of the most groundbreaking academic developments in Bitcoin research.

Peercoin is a P2P digital currency and payment system optimized for security and energy-efficiency.