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A Guide to 99% Fault Tolerant Consensus

Special thanks to Emin Gun Sirer for review We’ve heard for a long time that it’s possible to achieve consensus with 50% fault tolerance in a synchronous network where messages broadcasted by any honest node are guaranteed to be received by all other honest nodes within some known time period (if an attacker has more than 50%, they can perform a “51% attack”, and there’s an analogue of this for any algorithm of this type). дальше »

2018-8-9 04:03


Bitcoin (BTC) ETF Hype Could Be A Whale Ploy To Lower Altcoin Prices Before The Next Rally

Bitcoin (BTC) is up today against most altcoins, trading at a price of $7,700 as shown by the daily BTC/USD chart above. It seems to have met resistance short term and the price might pull back short term, but a strong FOMO for Bitcoin (BTC) is clearly visible as investors refuse to sell even under overbought conditions. дальше »

2018-7-23 18:00


Фото:

Governance, Part 2: Plutocracy Is Still Bad

Coin holder voting, both for governance of technical features, and for more extensive use cases like deciding who runs validator nodes and who receives money from development bounty funds, is unfortunately continuing to be popular, and so it seems worthwhile for me to write another post explaining why I (and Vlad Zamfir and others) do not consider it wise for Ethereum (or really, any base-layer blockchain) to start adopting these kinds of mechanisms in a tightly coupled form in any significant way. дальше »

2018-7-21 23:03


STARKs, Part I: Proofs with Polynomials

Special thanks to Eli Ben-Sasson for ongoing help, explanations and review, coming up with some of the examples used in this post, and most crucially of all inventing a lot of this stuff; thanks to Hsiao-wei Wang for reviewing Hopefully many people by now have heard of ZK-SNARKs, the general-purpose succinct zero knowledge proof technology that can be used for all sorts of usecases ranging from verifiable computation to privacy-preserving cryptocurrency. дальше »

2018-7-21 23:03


Notes on Blockchain Governance

In which I argue that “tightly coupled” on-chain voting is overrated, the status quo of “informal governance” as practiced by Bitcoin, Bitcoin Cash, Ethereum, Zcash and similar systems is much less bad than commonly thought, that people who think that the purpose of blockchains is to completely expunge soft mushy human intuitions and feelings in favor of completely algorithmic governance (emphasis on “completely”) are absolutely crazy, and loosely coupled voting as done by Carbonvotes and similar systems is underrated, as well as describe what framework should be used when thinking about blockchain governance in the first place. дальше »

2018-7-21 23:03


Can Bitcoin become Digital Gold ?

As Bitcoin has shown life the last several days and rose above $7000, the term “digital gold” has been repeated many times in journalistic publications, tweets, crypto forums and even on TV.   Gabor Gurbacs, director of digital asset strategies at VanEck/MVIS appeared on CNBC’s “Futures Now” and opined on just how big Bitcoin could […] The post Can Bitcoin become Digital Gold ? appeared first on ZyCrypto. дальше »

2018-7-21 22:39