The Private Blockchain Providers
It's pretty much all the big players – IBM, SAP, Oracle, AWS, Microsoft -- and if they aren't playing, they will. IBM has been very heavy in the Linux Foundation's project called Hyperledger – it's an open-source project. Anybody can get involved with Hyperledger. SAP and Oracle are using Hyperledger. There's various flavors within Hyperledger and different projects. On the Microsoft Azure cloud, they're offering Enterprise Ethereum. It's the same thing used for Bitcoin, but this is a private version of it that Microsoft hosts. I was surprised that AWS has a couple of different offers. It's something that you can get in and start playing with.