Category

Ethereum

zkSNARKs in a nutshell

The possibilities of zkSNARKs are impressive, you can verify the correctness of computations without having to execute them and you will not even learn what was executed – just that it was done correctly. Unfortunately, most explanations of zkSNARKs resort… Continue Reading →

Geth 1.7 – Megara

The Go Ethereum team is proud to announce the next release family of Geth, the first incarnation focusing on laying the groundwork for the upcoming Metropolis hard forks (Byzantium and Constantinople), consisting of 125+ code contributions for various parts of the… Continue Reading →

Ethereum Research Update

This week marks the completion of our fourth hard fork, Spurious Dragon, and the subsequent state clearing process, the final steps in the two-hard-fork solution to the recent Ethereum denial of service attacks that slowed down the network in September and October…. Continue Reading →

Roundup #5

Development has steadily continued over the last month and a half as we approach the launch of Metropolis. Over a series of core dev calls over the last few months, we have specified and finalized the EIPs for Metropolis, and… Continue Reading →

Statement Objecting To EME as a W3C Recommendation

On of Friday, July 28, 2017, forty-four members of the World Wide Web Consortium (W3C), including the Ethereum Foundation, voted to appeal the decision to publish  Encrypted Media Extensions (EME) as a W3C Recommendation. The Foundation believes EME should not be… Continue Reading →

> Just as a side note, as I argued before, the DAO collapse and the ensuing hard fork was a natural…

> Just as a side note, as I argued before, the DAO collapse and the ensuing hard fork was a natural experiment that delivered a triumph to Williamsonian contracting and a decisive blow to Hartian contracting, ironically just months before… Continue Reading →

Maybe slightly; but I don’t see that being too big an issue, especially since under normal…

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> What I find so intriguing about crypto is that it offers commitment devices that are built from…

> What I find so intriguing about crypto is that it offers commitment devices that are built from the viewpoint of the action (the economic transaction), and not from the viewpoint of the actor (the economic agent). This seems interesting, but… Continue Reading →

Usually in economics the word “commitment” refers to promises that are *forward-facing*, something…

Usually in economics the word “commitment” refers to promises that are *forward-facing*, something like “I put myself in a position such that either I later do X or I lose $YYY”. This is interesting because I actually see blockchains as… Continue Reading →

Regarding Bitcoin and Ethereum dev and client decentralization, I think those four graphs miss two…

Regarding Bitcoin and Ethereum dev and client decentralization, I think those four graphs miss two points: Many of the so-called “alternative Bitcoin clients” are in fact forks of the same codebase as Bitcoin Core, whereas all Ethereum implementations have fully separate… Continue Reading →

> There’s a long history of nationalization to prove that after governments (IMO the most likely…

> There’s a long history of nationalization to prove that after governments (IMO the most likely attacker) take over, operational efficiency tends to drop strongly. One study estimates that oil mining companies see their profitability drop by over 50% post… Continue Reading →

> This statement is misleading, because he is really only talking about what a 51% attacker could…

> This statement is misleading, because he is really only talking about what a 51% attacker could do to the very last blocks in the blockchain. No, I’m talking about what a 51% attacker can do to *any* block in… Continue Reading →

Roundup Q2

Thanks to all the developers and team leads who contributed to the sections on their projects In the last month and a half, the Ethereum network went through a rapid growth in usage, to the point that it now processes… Continue Reading →

When I see voting games I usually analyze (i) 51% attacks and (ii) bribe attacks. Looking here:

When I see voting games I usually analyze (i) 51% attacks and (ii) bribe attacks. Looking here: A malicious buyer 51% attacks to force a refund. Then, if everyone recognizes the refund was malicious, the developers can just do another sale. A… Continue Reading →

This doesn’t seem as ironclad as it sounds.

This doesn’t seem as ironclad as it sounds. It seems entirely possible that there would exist paths from you to _any_ possible recipient going through _any_ of your channels. Any sufficiently well-connected graph has this property.

I don’t think you actually solved the trilemma; it seems like you unwittingly chose the…

I don’t think you actually solved the trilemma; it seems like you unwittingly chose the “inefficiency” side, except it didn’t hit that hard because the markets were smaller back then. Specifically: > and a promise to burn the unsold tokens This… Continue Reading →

Minimal Slashing Conditions

Last week Yoichi released a blog post detailing the process of formally proving safety and liveness properties of my “minimal slashing… Continue reading on Medium »

Roundup Round III

Over the last month and a half we saw vigorous ongoing research and development on all sides of the Ethereum roadmap, and progress is rapidly starting to translate into real results that can be run and verified inside of an… Continue Reading →

Safety Under Dynamic Validator Sets

Traditional consensus algorithms, whether they operate in a synchronous, partially asynchronous or fully asynchronous network model, and… Continue reading on Medium »

Solidity optimizer bug

A bug in the Solidity optimizer was reported through the Ethereum Foundation Bounty program, by Christoph Jentzsch. This bug is patched as of 2017-05-03, with the release of Solidity 0.4.11. Background The bug in question concerned how the optimizer optimizes… Continue Reading →

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