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Crypto & Blockchain

The most popular blog posts about crypto & blockchain on Hacker News. 127 posts.

2022
62

How SHA-256 Works Step-by-Step

SHA-2 (Secure Hash Algorithm 2), of which SHA-256 is a part, is one of the most popular hash algorithms around. A cryptographic hash, also often referred to as a "digest", "fingerprint" or "signature", is an almost perfectly unique string of characters that is generated from a separate piece of input text. SHA-256…

63

Crypto: The Good, the Bad and the Ugly

I dig into what's genuinely impressive about crypto (distributed trust, abuse prevention, true cloud computing) and what's deeply problematic: boundary interactions, governance concentration, transaction cost tradeoffs, and unclear incentives. My conclusion: crypto may only be useful for financial engineering, and…

64

The entire crypto ecosystem is a ponzi

Not really. As a counter example, gold is clear and very old ponzi. It's ok. And as a more general argument, crypto does have utility. For circumventing capital controls, buying drugs or laundering money. So there will be constant supply of new depositors who needs that and willing to pay. I would not bet on crypto…

70

Crypto, the Left and Technofeudalism

Rare is the person who could expertly comment – in a single interview! – on the rise of NFTs and their origins in the virtual worlds of gaming, the logic of the emerging regime of techno-feudalism, and the folly of El Salvador’s Bitcoin-heavy negotiating tactics with the IMF. Luckily, we have found this person in […]

88

Are blockchains decentralized?

A new Trail of Bits research report examines unintended centralities in distributed ledgers Blockchains can help push the boundaries of current technology in useful ways. However, to make good risk decisions involving exciting and innovative technologies, people need demonstrable facts that are arrived at through…