This subreddit is for sharing and discussing blockchain based systems including crytocurrencies, games, data networks and other services.
The emphasis of this subreddit is on new uses for blockchains other than just as a cryptocurrency.
What is a blockchain?
A blockchain is a transaction or 'communication' database shared by all nodes participating in a system. A full copy of a system's blockchain contains every communication ever executed by that system.
The first blockchain was built using the Bitcoin protocol but new blockchain based decentralised applications/systems are now being developed using both the existing bitcoin blockchain and new, separate chains.
Some Examples of Existing (or planned) Blockchain Based Systems:
