Updated: Chain Core : What Every Developer Needs to Get Started With Block Chain – http://www.chain.com

Updated: As a follow up, in less than an hour, using Chain Core, I created some digital assets, created some users, and executed some trades.  Nice job https://chain.com/

https://chain.com/docs/core/get-started/five-minute-guide

chain-com

I really like the Chain.com implementation of the blockchain.   It reminds me of running Apache Tomcat of the first time back in 1999.  The developer version just worked out of the box.  I think I am considering Chain as THE “reference implementation” for Learning BlockChain for the first time.  Great job.

And they have a really cool use case: http://bravenewcoin.com/news/visa-and-chain-launch-blockchain-platform-for-cross-border-b2b-payments/