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A Note On Charity Through Marginal Price Discrimination

Vitalik Buterin via the Vitalik Buterin Blog Updated 2018-07-28. See end note. The following is an interesting idea that I had two years ago that I personally believe has promise and could be easily implemented in the context of a blockchain ecosystem, though if desired it could certainly also be implemented with more traditional technologies (blockchains would help get the scheme network effects by putting the core logic on a more neutral platform). Suppose that you are a restaurant selling sandwiches, and you ordinarily sell sandwiches for $7.50. Why did

[Mirror] A Proof of Stake Design Philosophy

Vitalik Buterin via the Vitalik Buterin Blog This is a mirror of the post at https://medium.com/@VitalikButerin/a-proof-of-stake-design-philosophy-506585978d51 Systems like Ethereum (and Bitcoin, and NXT, and Bitshares, etc) are a fundamentally new class of cryptoeconomic organisms — decentralized, jurisdictionless entities that exist entirely in cyberspace, maintained by a combination of cryptography, economics and social consensus. They are kind of like BitTorrent, but they are also not like BitTorrent, as BitTorrent has no concept of state — a distinction that turns out to be crucially important. They are sometimes described as decentralized autonomous

[Mirror] Quadratic Arithmetic Programs: from Zero to Hero

Vitalik Buterin via the Vitalik Buterin Blog This is a mirror of the post at https://medium.com/@VitalikButerin/quadratic-arithmetic-programs-from-zero-to-hero-f6d558cea649 There has been a lot of interest lately in the technology behind zk-SNARKs, and people are increasingly trying to demystify something that many have come to call "moon math" due to its perceived sheer indecipherable complexity. zk-SNARKs are indeed quite challenging to grasp, especially due to the sheer number of moving parts that need to come together for the whole thing to work, but if we break the technology down piece by piece then

CeloLaunch AMA Session With BeInCrypto

Hi Everyone. Welcome to another BeInCrypto AMA Session.Sponsored Sponsored Today we have Stephen (@Stephen_CLA) who is a community manager of CeloLaunch, the first DeFi launchpad on the Celo network.  BeInCrypto (BIC): Community, here is how things will work. I’ll have 10 questions for him. After that, he will pick up 5 out of all the questions you asked before the session. Good luck to you all!Sponsored Sponsored (This AMA has been edited for clarity.) BIC: I would like to ask you something general to kick things off, so please provide

Aquaris AMA Session With BeInCrypto

Hi Everyone! Welcome to another BeInCrypto AMA Session.Sponsored Sponsored Today we have Andrei (@Andrei_AQUARIS) and Alex (@AlexAQUARIS). They are respectively co-founder and COO of Aquaris.  For the uninitiated, Aquaris is a platform that aims to modernize and optimize the fish product industry using blockchain technology.Sponsored Sponsored BeInCrypto (BIC): Here is how things will work. I’ll have 10 questions for them. After that, they will pick up 5 out of all the questions you asked before the session. Good luck to you all!(This AMA session has been edited for clarity.) BIC:

Crypto Investor News for 11/17

Staples Center to be Renamed Crypto.com Arena (BBC): The tipping point has arrived. Investor takeaway: Expect everyone you know to suddenly become interested in crypto investing. We’ve gone mainstream. How India is Regulating Crypto (Economic Times): India will ban crypto for payments, ban crypto advertising, and allow crypto as investments. Investor takeaway: Overall positive news for us, as it gives a government stamp of approval on crypto investing. Thank you to India for taking the lead on thoughtful regulation. ConsenSys is Now Worth $3.2 Billion (ConsenSys): Celebrating its latest funding

Crypto Investor News for 11/16

Your Crypto Rights (Binance): A manifesto for how the crypto industry needs to evolve, with a priority on your rights as an investor. Investor Takeaway: Binance, which makes up part of our Future Winners portfolio, is once again leading the charge with a future-focused take on crypto regulation. We agree with all ten points. Read them. A six-minute explainer video on DeFi, courtesy of Wall Street Journal.Investor takeaway: Remember, the platform that most DeFi is built upon is Ethereum, which is why we buy and hold ETH for the long