According to the latest data disclosed by Coinbase researcher Conor Grogan, the amount of ETH permanently lost on the Ethereum network for various reasons has reached an astonishing level. User errors alone have resulted in more than 913,000 ETH being irretrievable, accounting for 0.76% of the total ETH supply, which is approximately $3.43 billion based on current market prices.

This figure does not yet include the 5.3 million ETH that were burned due to the EIP-1559 proposal. If this portion is taken into account, the total value of ETH that has permanently disappeared in Ethereum's history has exceeded $23.42 billion, accounting for more than 5% of the total supply. This is equivalent to removing a considerable market capitalization from the market.

Among these "ETH disappearance incidents", some cases are particularly notable:

1. The Web3 Foundation lost 306,000 ETH due to a vulnerability in the Parity multisignature wallet.
2. Quadriga exchange has permanently locked 60,000 ETH due to issues with the smart contract.
3. The NFT project Akutars encountered problems during the minting process, resulting in a loss of 11,500 ETH.
4. Some users, for unknown reasons, transferred a total of 25,000 ETH to the burn address.

Grogan pointed out that the estimated $3.43 billion is actually quite conservative. This figure only includes ETH that can be definitively identified as permanently locked and does not account for ETH that is inaccessible due to lost private keys or forgotten early wallets. Considering these factors, the actual amount of "lost" ETH may be much higher.

These data reflect the operational risks and technical vulnerabilities present in the application of blockchain technology, while also highlighting the importance and challenges of users self-managing their assets in decentralized systems. As the Ethereum network continues to develop and improve, how to reduce such "unexpected losses" will become an important issue facing the entire ecosystem.