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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


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Google officially names Android 9 ‘Pie’, rolling out to Pixels today and other devices this fall

Google has finally let the cat out of the bag: its ninth version of Android, codenamed Android P, is called Pie – and you can get it right now if you’ve got a Pixel phone. The company released the first preview of Android 9 for developers back in March, with support for notches and multiple cameras (so apps could work better with them), improved notifications, some design tweaks, AI-powered adaptive brightness, and under-the-hood enhancements. дальше »

2018-8-7 06:28


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Queensland Backs Cryptocurrency Point-of-Sale Project for Tourism

The Queensland government in Australia is backing a cryptocurrency point-of-sale system that officials believe will help boost tourism throughout the area. Thus far, they have given over $8 million in Australian dollars ($6 million USD) to roughly 70 different companies that will work to inspire innovation and create new ideas within the region’s travel space. дальше »

2018-8-2 00:27


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


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Op Ed: Addressing the Threat of Cryptomining Malware

One major class of attacks to hit the hacking landscape recently is cryptomining. While cryptomining on its own supports a good cause when being done consciously, it also allows nefarious actors to make a lot of money fast, and, with the sheer number of cryptocurrencies available to mine, it is becoming a popular choice for attackers. дальше »

2018-7-18 23:18


Gnome Invasion ICO (GIT Token): Collect Blockchain Gaming-Cards?

What Is Gnome Invasion? Gnome Invasion or GIT is not only an investment, but it also doubles up as a utility token that can be used to purchase real products. With GIT, cryptocurrency enthusiasts get a unique opportunity to collect gaming cards while making the most out of the blockchain infrastructure. How Gnome Invasion Blockchain Gaming-Cards Work […] дальше »

2018-7-15 11:21


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The Genesis Files: With Bit Gold, Szabo Was Inches Away From Inventing Bitcoin

As his Hungarian parents had fled post-war Soviet regime to settle in the United States, Nick Szabo came to call the Californian Bay area of the 1990s his home. Here, he was among the first to frequent the in-person “Cypherpunk” meetings organized by Timothy May, Eric Hughes and other founding members of the collective of cryptographers, programmers and privacy activists centered around the ’90s mailing list of the same name. дальше »

2018-7-13 17:16


Blockchain-based property registries may help lift poor people out of poverty

Many rural farmers in India lack clear ownership of the land they work and live on. AP Photo/Anupam Nath Nir Kshetri, University of North Carolina – Greensboro Many developing countries don’t have a working system of tracking property rights, and what they do have can be fragile and incomplete. In Haiti, for instance, a large […] дальше »

2018-6-29 05:08