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…

Blockchain, Bitcoin and Smart Contracts and the Future of Security | Highlights from RSAC 2018

I think it’s really important to distinguish between blockchain andcryptocurrency basically a blockchain is one implementation of a distributedledger the coin is digital money so a transaction is just sending from Aliceto Bob crypto currencies use block chains to store their transactionsranging in between 250 billion and up to 750 billion dollars in total assetsacross…

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…

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…

Bitcoin Q&A: The rules of Bitcoin (part 1)

[AUDIENCE] What do you mean when you say a transaction is “incorrect”?What is the difference between “correct” and “incorrect”?[ANDREAS] That’s a great question.There are a set of rules within the system, probably about thirty or forty rules altogether,that the software [uses to analyse transactions].For example, if a transaction says my address is paying your address…

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…

Crypto Exchange Targeted By Hackers | Comodo News

Late last week unknown hackers successfully targeted a cryptocurrency exchange with anaim to steal Bitcoins through the web analytics service it was using.Malicious JavaScript code was spotted on 700,000 websites that were bundled with the traffictracking code from the leading web analytics platform StatCounter.The malicious script was intended to replace the destination Bitcoin address of…

STOS AND LICENSING THE FUTURE OF CRYPTOCURRENCY

[00:00:04] Somebody help me. Welcome back.[00:00:07] Global news in this episode will bring you part two of my interview with Mandel. Gus rockets in this episode we discuss the Rockets platform their upcoming esta yo and how the future of cryptocurrency will be funded. Enjoy the show.[00:00:20] Rock X is S T O so straight…

Bitcoin Q&A: Data integrity and validation of keys

“What does the following sentence mean? ‘when transactions are broadcast to the network,the SHA-256 function is used to verify data integrity.’”Well, cryptographic hashes offer the ability to produce a fingerprint [of a piece of data].A hash functions [produces] a cryptographic digest.[You can provide] an arbitrary length data stream of bits [as input] and it will…