Ethereum 2.0: Ethereum 2.0 is an upgrade to the current network, designed to deliver greater scalability, security and sustainability. According to initial estimates, the transition is expected to take 2–3 years. Ethereum is currently in a transitional phase, moving from the Proof-of-Work (PoW) to the Proof-of-Stake (PoS) algorithm. Validators can deposit their stake into a smart contract, thereby becoming eligible to verify transactions in return for a reward (staking reward). If a staker fails to act in accordance with the network’s rules, their stake may be forfeited. At around 9.30 am on 8 June 2021, this smart contract held Ether with a value of approximately 13 billion USD (see https://etherscan.io/address/0x00000000219ab540356cbb839cbe05303d7705fa) with an estimated annual return on staking of around 6.58% (see https://www.stakingrewards.com/). As transaction costs are spread across the total number of tokens deposited in the smart contract, the return depends on the number of tokens deposited. The more tokens that are deposited, the lower the return. (Publication date: 8 June 2021)