Ethan Jewett@esjewett·May 30, 2017If I say “blockchain” enough, I will generate a use case. Believe!Quote TweetGeneXus USA@GeneXusUSA·May 30, 2017SAP INNOVATION: “Ladies and Gentlemen, Start Your (Blockchain) Engines!” by @jackshaw http://buff.ly/2ruDDsA #blockchain #SAP213
Ethan Jewett@esjewett·May 30, 2017Replying to @gregory_kramerThis is interesting but also wrong on some very key points. For example, private blockchain controlled by one entity sure are reversible.4
Venkatesh Rao@vgr·May 31, 2017Replying to @esjewett and @gregory_kramerbut it's irreversible because the work done mining the blocks is lost... not a simple rewind.1
Ethan Jewett@esjewett·May 31, 2017Replying to @vgr and @gregory_kramerFor a centrally controlled chain, you just rebuild it as it was save for that thing you changed. Merkel trees buy you next to nothing.11
Ethan Jewett@esjewett·May 31, 2017Replying to @esjewett @vgr and @gregory_kramerIt’s publishing the transaction record that makes it verifiable and that’s more what matters. The crypto is fairly irrelevant.11
Ethan Jewett@esjewett·May 31, 2017Replying to @esjewett @vgr and @gregory_kramerFor public chains with distributed consensus and proof of work it’s different. But transactions there are necessarily expensive.11
Venkatesh Rao@vgrReplying to @esjewett and @gregory_kramerokay I'll have to dig in a bit deeper and possibly change that bit in the article12:43 AM · May 31, 20171 Like