Discover the history and value of the most expensive NFTs in the world, from CryptoPunks' The Merge to Beeple's Everydays: The First 5000 Days. Who are behind these digital masterpieces and how much did they sell for?

opBNB是基于Optimism OP Stack的以太坊虚拟机(EVM)兼容的L2网络，它如何提高网络吞吐量、降低交易成本并保持与主网相似的安全级别？