Also, airy promises are not only cheap - it's a dessert wax and a floor topping! - but highly available and widely distributed in the Business Blockchain environment!
The other main code dump on hyperledger.org is Intel's. Their "Sawtooth Lake" replaces the blitheringly stupid and wasteful Proof of Work with something equally stupid but less wasteful, Proof of Elapsed Time, which might as well be called Proof of Buying An Intel CPU. Rather than have miners compete to produce the next block, a timer running in an environment secured by a DRM mechanism built into your Intel CPU picks if you get to do the next block. The white paper is an extended advertisement for Intel® Software Guard Extensions™ (SGX™). Also, they only have a simulated Proof of Buying An Intel CPU mechanism as yet.
This doesn’t provide any security against malicious participants; the excuse is that private blockchains need speed over security. You might think that at that point you don’t need a blockchain at all, but you’re hardly going to sell any consultant hours with that sort of thinking.
There's a link on my site to go on the alerts mailing list :-) It's literally not finished yet. (21,284 words of body text at this moment and I have maybe 5k-10k to add. I was targeting 15k for a quickly dashed-off Kindle short, and I appear to have turned the project into a miniature Sistine chapel.) I have excerpts from the draft up at the site. Which I just moved to http://davidgerard.co.uk/blockchain/ .
The other main code dump on hyperledger.org is Intel's. Their "Sawtooth Lake" replaces the blitheringly stupid and wasteful Proof of Work with something equally stupid but less wasteful, Proof of Elapsed Time, which might as well be called Proof of Buying An Intel CPU. Rather than have miners compete to produce the next block, a timer running in an environment secured by a DRM mechanism built into your Intel CPU picks if you get to do the next block. The white paper is an extended advertisement for Intel® Software Guard Extensions™ (SGX™). Also, they only have a simulated Proof of Buying An Intel CPU mechanism as yet.
https://intelledger.github.io/introduction.html
This doesn’t provide any security against malicious participants; the excuse is that private blockchains need speed over security. You might think that at that point you don’t need a blockchain at all, but you’re hardly going to sell any consultant hours with that sort of thinking.