$ETH **Ethereum (ETH)**
Ethereum (ETH) is the second largest cryptocurrency after Bitcoin, and it is characterized by being more than just a payment method. It relies on **smart blockchain** technology that allows for the creation of **smart contracts** and decentralized applications (DApps). It was launched in 2015 by **Vitalik Buterin**, and it is used in various fields such as **decentralized finance (DeFi)** and **non-fungible tokens (NFTs)**.
Ethereum is currently working on improving its efficiency through the **Eth 2.0** update, which transitions from a **Proof of Work (PoW)** system to a **Proof of Stake (PoS)** system to reduce energy consumption and increase speed. ETH is considered a fundamental pillar in the world of digital currencies and technological innovation.