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Mike Hearn
Works at Vinumeris
Attended Durham University
Lives in Zurich, Switzerland


The new programming language I've been playing with lately has a brand new little web IDE. You can write code, compile it, see the output and even get on the fly type checking all within your browser. It's no match for IntelliJ itself but a good way to get a taste of the language for beginners.
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Mike Hearn

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If you're in London next week and are a Bitcoin developer, come to DevCore -  I am giving a talk titled "Building contracts based applications", and giving a workshop.

In fact, that's not quite true. I won't be giving a talk this time. As we're all gonna be programmers, I plan to do something a bit different. To prove to you how easy it has become to write specialised smart contract wallets, I will be writing a decentralised document timestamping app that uses OP_RETURN transactions, on stage  ..... from scratch in 30 minutes. Don't think it's possible? Come see for yourself :-)
DevCore London: April 15, 2015, 08:30 am -- Dexter House, London
Daniel Vartanov's profile photoTom Mestdagh's profile photo
+Mike Hearn awesome.  A video would be great.  Or the same over a hangout or something.  I would pay to follow that class.
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Mike Hearn

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I've written a couple of new articles about #bitcoin .

The first is about the "replace by fee" patch being suggested for Bitcoin. I think it's a bad idea and won't work. In this article I explain why I think this:

The second is about double spending and various ways it can be mitigated. A bunch of people in the Bitcoin dev community seem to be talking about this right now, so here's what I'm thinking.
and how to make it harder
Paul Boldra's profile photoBryan Buckley's profile photoRachel Fang Fang's profile photoThomas Brandtstaetter's profile photo
>4. Remote attestation ...... And unfortunately whilst ARM TrustZone is widely deployed in mobile phones it apparently can’t do remote attestation

cough Trustonic cough
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Mike Hearn

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Well that was entirely predictable.
Some banks are seeing a growing incidence of fraud on Apple Pay as criminals exploit vulnerabilities in the verification process of adding a credit card.
Khürt Williams's profile photoExcalibur “excalibur1812” Blade's profile photoThomas Brandtstaetter's profile photoRachel Fang Fang's profile photo
We hold Apple responsible because they told gullible people "Apple Pay is going to be super secure and solve your fraud problems".

+Mike Hearn  They did? Where?

Who is this we?
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Mike Hearn

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The autonomous agents idea is really starting to have an impact. The talk I gave at the Turing Festival is closing in on 20,000 views. Here's an interview in the BBC where we talk about Bitcoin-using self owning cars.

I realised a few months ago that when I gave the talk, I didn't give any credit to Gregory Maxwell or julz from the forum which first got me thinking about these ideas. I'd like to rectify that now. They're both intellectual giants and although they didn't talk about cars specifically, Gregory in particular laid out a lot of the foundational ideas like agents that do A/B testing on upgrades of themselves.
Mike Hearn's profile photoJohn Miller's profile photoThomas Brandtstaetter's profile photoMatthew Hudson's profile photo
Takes the pleasure out of driving
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Dark Leaks

Amir Taaki, the project's systems developer, told CoinDesk he hopes to "[devalue] business models based around proprietary secrecy"

Amir is a famously strong supporter of black markets. Typical quote:

bitcoin is what it is: world changing technology. it is a tool of the black market. it will transform humanity for the better.

First use of Dark Leaks: Former Silk Road 2 sysadmin willing to sell database dumps to the highest bidder.

I think my irony meter just exploded.
Paul Hosking's profile photoMichael Gebetsroither's profile photoThomas Brandtstaetter's profile photoSven Daw's profile photo
Also the people are just ignoring that it is not really working the way darkleaks is implement right now..
But hey, lots of reddit karma and Bitcoin buzz, who cares about the details
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Mike Hearn

commented on a video on YouTube.
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Video of Q&A session that +Gavin Andresen and myself did in London. Thanks for recording it IAmSatoshi - tip sent your way!
David de Kloet's profile photoMike Hearn's profile photo
+David de Kloet BreadWallet
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Mike Hearn

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Anyone want to make a small bet with me about when traffic growth will resume?
In the past couple of years Bitcoin has been settling into a regular seasonal growth pattern, in which growth stops duri…
Steven Tardonia's profile photoThomas Brandtstaetter's profile photo
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Got some bitcoins? Happy about the rise in price? Why not share a bit of your new happiness with a charity and play with a Lighthouse smart contract at the same time?

The Ronald McDonald House of the Capital Region is looking to raise money to purchase a medical grade breast pump for their latest house.
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Mike Hearn

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An interesting look behind the scenes at what it takes to defend credit card->bitcoin gateways. 
Angelika Moscicki's profile photoThomas Brandtstaetter's profile photo
I don't know whether thats more awesome or disturbing. Very cool!
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Mike Hearn

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I gave a talk in Zürich about the development of Lighthouse, what worked and what didn't. If you're interested in building decentralised apps then it might be of interest.

The talk is about an hour (with Q&A) and you can view it below.
Tamas Blummer's profile photoPeter Peters's profile photoThomas Brandtstaetter's profile photoManfred Karrer's profile photo
A valuable talk, thank you. Let's hope the practical protocol freeze leads to a healthy competition of forks.
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Mike Hearn

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Just used to book some flight tickets. Normally I just go to when doing direct flights, but today their site was totally broken and kept giving me error and redirect loops. Plus they charge 11 CHF just for the privilege of using a credit card to pay them!

BTCTrip is a pretty nice site - no fuss. Paid with Bitcoin, and it was immediate and seamless. Price was the same as I'd have got from the airline direct.

Some days I think .... maybe this thing can work after all! Now let's see if I am actually on the flight when I turn up :)
Chris Niekel's profile photoThomas Brandtstaetter's profile photoLucas Betschart's profile photoMike Hearn's profile photo
Huh, I didn't know about destinia. I don't think the price was very different this time. I'll try destinia next time.
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Software Engineer
  • Vinumeris
    Boss, 2014 - present
  • Google
    Engineer, 2006 - 2014
  • CodeWeavers
  • QinetiQ
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Zurich, Switzerland
Manchester, England
Contact Information
I fix things when they break, and break things when they're fixed.
  • Durham University
    Computer Science
Basic Information
April 17
A fantastic location right opposite a beautiful park. The guide books are free and the receptionist was very helpful.
Quality: ExcellentFacilities: ExcellentService: Excellent
Public - 2 years ago
reviewed 2 years ago
Public - 3 years ago
reviewed 3 years ago
We had to wait a long time for our food, and the waitress forgot to bring various things we ordered and had to be reminded several times. However, when the food came, it was pretty good - the portions were exactly the right size, and it tasted great. The tables have wooden benches that make it easy to squeeze more people on, so it's a good place to go if you aren't sure how big your group will be.
Public - 6 years ago
reviewed 6 years ago
5 reviews
Simple and straightforward, Sams is one of the few places that serves deep dish pizza. If you like American style pizza, give it a try. Most pizzas are around 25 chf, though they serve other food too.
Public - 4 years ago
reviewed 4 years ago
Food-wise, the pizzas and subs they sell aren't the greatest ever - but the staff are cheerful, the decor is nice, and most importantly they are open practically all the time. No closing at 7pm for these guys! They provide newspapers for people to read, TV to watch, and also sell subs and fajitas. Be warned though, they only take cash - visit the cash machine just down the road (towards Bahnhof Weidikon) if you are short first.
Public - 7 years ago
reviewed 7 years ago