Although the ideas behind the current Ethereum protocol have largely been stable for two years, Ethereum did not emerge all at once, in its current conception and fully formed. Before the Blockchain has launched, the protocol went through a number of significant evolutions and design decisions. The purpose of this article will be to go through the various evolutions that the protocol went through from start to launch; the countless work that was done on the implementations of the protocol such as Geth, cppethereum, pyethereum, and EthereumJ, as well as the history of applications and businesses in the Ethereum ecosystem, is deliberately out of scope.
For one of the world's largest tech companies, "small" is a relative term.
So when IBM, a tech conglomerate that boasts 380,000 employees, says it has a "small" team working on Blockchain, by startup standards, it's anything but. Far from just building a garage and staffing it with a few engineers, IBM has created a network of global offices seeking to operationalize its team of 1,500 blockchain professionals now operating out of a dozen offices.
I’ll focus on zero-knowledge proofs, a building block for greater financial and data privacy in cryptocurrencies, including Zcash and Ethereum.
After a slow start, we’ve seen a steady increase in Segwit transactions with Bitstamp and BitGo switching to Segwit addresses last week (with BitGo already having more than 13% Segwit transactions in last 24 hours). We now have ~3.5% Segwit Transactions after 3.5 weeks of activation.