Double-spend on Bitcoin [BTC] requires “deep pockets”, says Bank of Canada study

2018-7-25 10:52

A recent study by the Bank of Canada has found that double spending on Proof of Work [PoW] blockchain is an “unrealistic” outcome. This is modeled on the behaviors of an “honest miner” and “dishonest miner”.

Proof of Work is a consensus mechanism that is utilized by several blockchains, but its most famous implementation is […].

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Источник: bitcoinwarrior.net

proof work → Результатов: 36


Proof of Assignment (PoA) vs. Proof of Work (PoW) and Proof of Stake (PoS)

Proof of Work (PoW), Proof of Stake (PoS), and Proof of Assignment (PoA) are cryptocurrency mining protocols. Essentially, they are computer algorithms that allow cryptocurrencies to function.   If you’ve been following the crypto world, then you’re probably already familiar with the two main protocols known as PoW and PoS. As it stands, there are […]

2018-7-24 01:16


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.

2018-7-21 23:03


Фото:

PoWx Seeks to Change Bitcoin Mining with “Optical PoW”

Nonprofit organization PoWx has launched this week with the goal of boosting the idea behind proof of work (PoW) through more innovative algorithms. The company is seeking to decentralize Bitcoin mining and make it more accessible to consumers through a new technology that executives have dubbed “optical PoW” — a new type of hardware that utilizes a more advanced and energy-efficient form of laser technology as the cornerstone of mining.

2018-7-14 01:04


Фото:

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.

2018-7-13 17:16


Вырастет ли биткоин?

Все мы полюбили его за то, что он такой децентрализованный, за то, что он лидер криптоиндустрии, криптоанархия, Proof of Work, ну вот это вот все. Но давайте окунемся более детально так ли это на самом деле.

2018-7-10 19:31


Elrond ICO (ERD Token): Adaptive State Sharding & SPoS Blockchain?

Elrond Network is a scalable public blockchain that seeks to deploy a novel architecture that goes beyond typical scalability with their whole state sharding scheme. The sharding protocol eliminates energy and computational waste while also ensuring there is fair distribution through the Secure Proof of Stake (SPoS) consensus. Still, the structure will work in line […]

2018-6-30 22:13


Фото:

Bitcoin in Brief: Exchanges Expanding, Brave Adds Tor, Tether ”Double Spent”

If you thought that only proof of work coins were susceptible to double spending attacks, you haven’t met tether. The world’s ninth largest crypto by market cap and second largest by volume is meant to be a haven in a sea of uncertainty, but even it’s not immune to jiggery-pokery, as we’ll learn in today’s […] The post Bitcoin in Brief: Exchanges Expanding, Brave Adds Tor, Tether ”Double Spent” appeared first on Bitcoin News.

2018-6-29 12:55


Фото:

On Radical Markets

Recently I had the fortune to have received an advance copy of Eric Posner and Glen Weyl’s new book, Radical Markets, which could be best described as an interesting new way of looking at the subject that is sometimes called “political economy” - tackling the big questions of how markets and politics and society intersect.

2018-7-21 04:03


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