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Bank of Canada: Proof-of-Work Beats Alternative Consensus Systems

Canada’s central bank has championed proof-of-work (PoW) algorithms as part of a new research paper on Blockchain consensus. ‘Irretrievable Sunk Costs’ In its Staff Working Paper released this week, Bank of Canada (BoC) said PoW, used by Bitcoin, held more promise than alternative proof-of-script (PoS) algorithms found in various altcoins. дальше »

2018-7-25 18:00


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Etherscan rushes to plug vulnerabilities following strange hacking attempts overnight

Etherscan, the most widely used Ethereum blockchain explorer, has quickly patched security vulnerabilities overnight as hackers exploited certain parts of its service. Hackers successfully manipulated the Disqus API – a third-party service used by Etherscan that allows for comments to be left on Ethereum wallet addresses. дальше »

2018-7-24 13:00


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Canada’s banking insurer owns about 58% of Canadian citizenship for investment purposes

Canadian citizens used Bitcoin (BTC) mainly for investment purposes in 2017, according to a study by the Bank of Canada (BoC) published July 23. According to the survey results, Canadians have mainly used the major cryptocurrency for investment purposes in 2017, rather than for transactions, which previously had been cited as the main reason for дальше »

2018-7-24 09:14


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When Smart Contracts Act Stupid: Is Your ICO Smart Contract Safe & Secure?

The potential inherent in smart contracts is immense. The nascent technology may be used for identity verification, secure data sharing, and for the management of tokens and raised funds in an initial coin offering/token sale – but just how clever are your smart contracts? The Ethereum network boasts more than 1500 decentralized applications (dApps), all of which make use of smart contracts to accomplish a wide variety of tasks. дальше »

2018-7-24 03:00


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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


Japan’s Telecom Company NTT Looks To Distributed Ledger Technology For Contract System

According to a recently filed patent application, Nippon Telegraph and Telephone (NTT) might be planning to introduce new contracts agreement system based on distributed ledger technology. NTT, which is one of the leading telecommunications companies in the world, has revealed that the application will be used to store contracts while the contained documents are tamper-proof. […] дальше »

2018-7-21 19:43