According to the Coinbase website, "staking" is "the process of actively participating in transaction validation (similar to mining) on a proof-of-stake (PoS) blockchain. On these blockchains, anyone with a minimum-required balance of a specific cryptocurrency can validate transactions and earn Staking rewards."

A federal court has authorized the Internal Revenue Service (IRS) to serve a "John Doe Summons" on the crypto exchange Kraken, seeking identities of U.S. taxpayers who have used cryptocurrency, the Department of Justice said on Wednesday.