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I heat my home by mining crypto currencies
Personal Blog of Christian Haschek
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The latest blog posts to take off on Hacker News. 488 posts.
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Ethereum Isn't Fun Anymore
Ethereum isn't fun anymore. There I said it. And although, the last time I developed an app using it has been more than a year ago, I stand by my word. Developing dapps on Ethereum has become ann
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Fictional Cryptocurrencies
I said they were fictional! Stop trying to invest in them!
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Finally, a Private Stock Exchange
Today was a big day. In 2013 we raised our seed round on the pitch of “building the Nasdaq for private markets.” Eight years later we call…
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Proof of X
I’ve spent a lot of time recently thinking about different proof-of-work mechanisms. When I say proof-of-work, I’m not talking about consensus algorithms like the ones that some crypto currencies use. I’m talking about social networks.
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An Economic Analysis of Ethereum
Originally published: January 2021 The anonymous founder of Bitcoin, Satoshi Nakamoto, solved the hard problems associated with digital scarcity with a white paper in 2008, and launched Bitcoin in 2009. After that invention, numerous other projects came in its wake. There are now over 8,000 separate digital assets…
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Attacking the DeFi ecosystem with flash loans for fun and profit (2020)
This article will examine in details what happened during the two transactions that exploited vulnerabilities to open under-collateralized positions in bZx, causing a loss of equity worth more than a million dollar in total.
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The Bit Short: Inside Crypto’s Doomsday Machine
This is the story of a Bitcoin trade — the most financially impactful trade I’ve ever made in my life. It’s also the story of the…
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Smart contracts on Bitcoin
While Bitcoin is the gold standard in crypto, Ethereum has been the innovator, bringing new ideas, particularly smart contracts, to the table. Smart contracts allow developers to easily build things on a blockchain and we have seen a proliferation of new things built on the Ethereum blockchain as a result. But what if…
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BadEconomics: Putting $400M of Bitcoin on your company balance sheet
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GoDaddy employees used in attacks on multiple cryptocurrency services
Fraudsters redirected email and web traffic destined for several cryptocurrency trading platforms over the past week. The attacks were facilitated by scams targeting employees at GoDaddy , the world’s largest domain name registrar, KrebsOnSecurity has learned.
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A Review of Consensus Protocols
The consensus problem is a fundamental problem in multi-agent systems which requires a group of processes (or agents) to reliably and timely agree on a single data value. Although extensively discussed in the context of distributed computing it’s not exclusive to this field, also being present in our society in a…
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Escaping the Dark Forest
On September 15, 2020, a small group of people worked through the night to rescue over 9.6MM USD from a vulnerable smart contract. This is our story.
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Fintech in Chains
"Fintech can come out of the shadows" is the title that Wall Street Journal editors gave to Brian Brooks and Charles Calomiris' oped last week . I have not in a long time seen a title that more utterly contradicts the content of the essay. For what they advocate is exactly the opposite: Fintech in chains, hemmed in by…
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So you want to roll your own crypto?
A coworker of mine asked: How are people supposed to learn (from mistakes) if they don't roll their own crypto? The short answer is do roll ...
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Ethereum Is a Dark Forest
A horror story.
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Bitcoin is more like ham radio than the early internet
People in the bitcoin community often make fun of me as a nocoiner . That is, I don't have any bitcoins and am vocal about that fact. (Ne...
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Bitcoin From Scratch – Part 1
Understanding the fundamental building blocks of Bitcoin can be daunting for some developers. The purpose of this guide is to explain through simple pieces of code, how Bitcoin works.
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