What are some alternatives?
Ethereum - Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.
UI Movement - The best UI design inspiration, daily
Bitcoin - Bitcoin is an innovative payment network and a new kind of money.
UI Garage - Specific mobile and web design patterns for your inspiration
Litecoin - Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world.
Hyperledger - Hyperledger is a multi-project open source collaborative effort hosted by The Linux Foundation, created to advance cross-industry blockchain technologies.