PoW vs PoS

So-called “alternatives” to Proof-of-Work “waste” just as much “work”.

Much has been written about Proof-of-Stake (PoS).

I go line-by-line against Vitalik’s Proof of Stake FAQ. PoS is still just as expensive as PoW (but it may have different security features).

In my previous article, I discussed how PoS is less resilient than PoW in dealing with worst-case scenarios.

Why Proof of Stake (Nov 2020)

Antiques, time, gold, and bit gold

A long time ago I hit upon the idea of bit gold. The problem, in a nutshell, is that our money currently depends on trust in a third party for its value. As many inflationary and hyperinflationary episodes during the 20th century demonstrated, this is not an ideal state of affairs. Similarly, privat

Proof of Stake (PoS) is a category of consensus algorithms for public blockchains that depend on a validator’s economic stake in the network. In proof of work (PoW) based public blockchains (e.g. Bitcoin and the current implementation of Ethereum), the algorithm rewards participants who solve crypto

A Proof of Stake Design Philosophy

Proof-of-Stake (PoS) is all the rage these days. Ethereum Casper, Cardano Ouroboros, etc. you name it. The rising interest in PoS protocols…

Proof-of-Work (PoW) was originally invented as a measure against email spams. Only later it was adapted to be used in digital cash.

In 2009, Satoshi Nakamoto introduced the Bitcoin cryptocurrency[Nak09], an online currency sys- tem which allowed peer-to-peer transfer of digital tokens. To ensure a consistent view of token ownership, Nakamoto used a public ledger which can be replicated and validated by all network participants.

Formal Barriers to Longest-Chain Proof-of-Stake Protocols

Why doesn't Bitcoin migrate to proof-of-stake?

Proof of stake instead of proof of work (first public post on proof-of-stake)