According to Foresight News, Arbitrum’s ARB token has officially opened for airdrop claims. According to Arbitrum’s documents, the ARB token will be open for airdrop claims at Ethereum mainnet block height 16890400 (estimated to be 21:00 on March 23, Beijing time), and the claim will end at Ethereum mainnet block height 18208000 (estimated to be September 23, Beijing time). ARB cannot be minted or claimed on the Ethereum mainnet, but can only be minted and claimed on Arbitrum One.