Ethereum Q&A: What is Metropolis?

“What will Metropolis mean for Ethereum?”Great question. Metropolis is the third out of four planned transitions for Ethereum,which was deployed in a manner that expects certain major transitions between stages of development.The first stage of development was called “Frontier.”Frontier involved the pre-sale of ether and the first pre-beta version of [the Ethereum network].The current or…

Bitcoin Q&A: What will Bitcoin Core 1.0 look like?

“What would Bitcoin Core 1.0 look like? I believe Satoshi first ran bitcoind 0.1.”“With all of the years [behind it] so far, any ideas about what Bitcoin Core 1.0 could possibly look like?”Right now, we are at version 0.17.I don’t know of any plans to move from the sub-version numbering to 1.0 anytime soon.If you…

Ethereum Q&A: Why I’m writing ‘Mastering Ethereum’

“People are worrying that they’re going to lose you, Andreas, to the altcoin sphere.”Oh no!“Peter says, “Recently I’ve seen more and more people, especially on Twitter, commenting on…whether you will remain faithful to Bitcoin.”“In certain ways, I empathise. You certainly have never been in this for the money.”“That’s what I truly and thoroughly believe.”“It makes…

Picking the Right Blockchain for the Job

Today, I want to talk to you about which blockchain is the “best” blockchain.Are you ready? Let’s ask the audience.Altogether, at the count of three, you shout out which blockchain you think is the best.Three, two, one… [Audience shouts] Fantastic.That is what subjective experience is all about. We all have opinions, but opinions really don’t…

Blockchain Basics – Ethereum Structure by University at Buffalo #8

Bitcoin blocking state was defined in terms ofunspent transaction outputs UTXOs anda reference implementation of the Wallet application that held the account reference.Ethereum formally introduce the concept of an account as a part of the protocol.The account is the originator and the target of a transaction.A transaction directly updates the account balances as opposed tomaintaining…

Ethereum Q&A: Developer compensation and performance indicators

“Have you heard about Vitalik’s new proposal to impose gas fees on wallet transactions to fund developers?”“What is this about?” Strictly speaking, this is a bit off-topic, but I will answer it quickly.There is a proposal in the Ethereum community, started by Vitalik, to [establish] a common practice.Not as a rule of the protocol, imposed…

Cryptography: The Science of Making and Breaking Codes

This probably looks like gibberish to you,and it should because it’s a cryptogram,a message in code.But, if I told you that all I did wasshift every letter in the sentenceto the next one in the alphabet,then you’d know that it translates to this.To encrypt a message, you need two main parts –the cypher and the…

[CS198.1x Week 2] Ethereum Bubble

On June 21st 2017, the price of Ethereum on the exchange GDAX crashed briefly to 10 centsUSD per ether due to a massive sell order.This is a testament to the massive volatility of cryptocurrency prices.Much of the price is dependant on the public perception of the currency.Here are a few things that affected it.Speculation about…

Bitcoin Q&A: Empty blocks, orphan blocks, and valid chains

“Are the miners simultaneously verifying the solution of the previous block’s cryptographicfunction while competing to find the puzzle solution for the next new block?”Yes, they are.It takes about 15-20 seconds at least to validate a block.Depending on how complicated the block is, how complicated the scripts in the block are,some blocks may take less than…