What Is Ethereum? The Programmable Blockchain Explained

Ethereum is the second-largest cryptocurrency after bitcoin, but it is above all something different: a public, decentralised network on which programs run that no one can halt or unilaterally alter. Where bitcoin devised digital money without a bank, ethereum made the blockchain programmable.

For an investor, what counts most is that ethereum is at the same time the infrastructure on which a large part of the crypto market runs. Anyone seeking to understand the sector cannot ignore it.

Smart contracts as the engine

At the heart of ethereum are smart contracts: pieces of code that automatically execute what they contain as soon as their conditions are met, without an intermediary. An entire economy has been built on these contracts. Consider decentralised financial services, through which people lend and trade without a bank, and stablecoins: digital coins that track the value of, say, the dollar and are largely issued on ethereum. In this way the network has grown into the market’s principal settlement layer.

The difference with bitcoin

Bitcoin is intended as scarce digital money and deliberately does little; that very simplicity makes it robust. Ethereum aims for usefulness and seeks to do a great deal, which makes it more versatile but also more complex. Supply differs too: bitcoin has a hard ceiling of 21 million coins, whereas the supply of ether moves with activity on the network. Both are crypto, but their design and purpose diverge sharply.

Ether, gas and proof-of-stake

Every action on the network incurs a fee called gas, settled in ether. In September 2022 ethereum took a far-reaching step: on 15 September it moved from proof-of-work to proof-of-stake, an event that became known as The Merge. Since then, validators secure the network by staking ether rather than expending computing power. That staking is an existing part of the protocol, not a promise of return.

Why the ecosystem matters

Ethereum’s value lies not only in the coin, but in what is built on top of it. Payment infrastructure, lending markets, trading venues and stablecoins run largely on this single network. That makes ethereum more than a standalone cryptocurrency: it is a barometer for activity across the entire digital-asset market.

The Callisto Capital approach

Callisto Capital manages a crypto portfolio on a systematic basis, so that high-net-worth investors can take a considered position in networks such as Ethereum without doing so themselves. As a Dutch registered investment fund under the AIFMD-light regime, not subject to ongoing supervision by the AFM, the emphasis lies on diversification, custody and risk management. Participation is open from an investment of 100,000 euro.

This article is for information only and does not constitute investment advice.

Niels Kaptein Fund Manager

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