Ethereum Q&A: Light clients, EVM, and Mist

Marcus asks, “Why would one use Metamask, MyEtherWallet, or MyCrypto?” “Is it just that they can hold multiple Ethereum-based tokens, or do they have more useful capabilities?” Metamask, MyEtherWallet, and MyCrypto are three lightweight clients and wallets. They don’t just implement wallet functionality. They make the Web3 Javascript interface available… in your browser, that allows applications (DApps) to run and access the Ethereum network. Through this wallet, [you can] create…

Bitcoin Q&A: Lightning Network game theory

“Can the Lightning Network rules be changed and updated easily, unlike [the Bitcoin blockchain], which requires super-majority consensus (almost everyone must agree) for simultaneous upgrade?” “Can groups of users use different variations of the channel rules and form a separate sub-network, with or without maintaining compatibility to the entire Lightning Network?” That is a really great question. The Lightning Network rules can be changed and upgraded quite easily. Lightning is…

Bitcoin Q&A: Exchanges, identity, and surveillance

‘Given the current status of Bitcoin and other open blockchains, how can users who purchase their BTC on an exchange, exposing all of their [personal information], protect their privacy and anonymity? Especially when governments have very sophisticated tools such as Chainanalysis. Should there be infrastructure and a paradigm shift on how users switch their assets from fiat to crypto?’ This is a great question. Right now, it’s actually very difficult…

Bitcoin Q&A: Wallet design and mass adoption

“What conditions should the ideal wallet meet?” That is a question which can only be answered if I understand your particular requirements. There is no perfect wallet for everyone. Wallets serve different purposes better than others. It depends on what you are trying to achieve. It is a bit like asking, “What is better, a Ferrari or an agricultural tractor? The [answer] depends on what you are trying to do….

Why Open Blockchains Matter

[Music] Hi! Wow… Oh my god. This is quite amazing. I’m really excited to be here at this conference. I’m so excited to be talking to all of you, who apparently are developers? That’s what it says back there on the screen. I assume it’s true. How many people in this room have used open-source software? [Audience raises hands] Trick question! I’m just trying to get you to warm up…

Bitcoin Q&A: From barter to abstract money

[AUDIENCE] I have a two-part question. Both are related to social norms. Before digital currency and before centrally control currencies, people [would] barter, still even today. I see that Bitcoin will perhaps promote more of that barter of services, in exchange for bitcoin. That is one question: is this really nothing but to promote more barter of services across the globe? The second question is, given the bitcoin currency requires…

Bitcoin Q&A: How do payment channels work?

Bitcoin Q&A: How do payment channels work?

“Can you explain the Lightning Network and how payment channels with ‘locked’ funds work?” Yes. Let’s start with payment channels. Payment channels are [opened from]… transactions on the Bitcoin network that lock funds in a 2-of-2 multi-signature address. If I have a payment channel with Alice, that has [bitcoin] locked [in a multi-sig with one key from each of us]. I commit an [amount] of funds to the balance of…

Ethereum Q&A: Does Ethereum compete against Bitcoin?

Ethereum Q&A: Does Ethereum compete against Bitcoin?

[AUDIENCE] What do you think about Ethereum? [ANDREAS] You know, I have never been asked that question in Brazil yet. [Laughter] It only comes up at every meeting… I am very interested in Ethereum. I have watched the developments closely from the very beginning. I have written smart contracts, and I continue to work in Ethereum. I think Ethereum is a fascinating technology. It shows how diverse the ecosystem of……

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 me wonder why you would spend so much time…

Ethereum Q&A: Smart contract platforms

Ethereum Q&A: Smart contract platforms

Q: “Which do you think is a superior platform for smart contracts? Bitcoin with side chains like Rootstock? Ethereum or one of the self-proclaimed 3G or third-generation blockchains?” I mean the problem is you can’t really compare these things, and the reason you can’t compare them is because one exists and the other two are mostly road map or test software at the moment. So, Ethereum exists, and you can…