Bitcoin Ordinals is a protocol that allows individual satoshis (SATs) in the bitcoin blockchain to be assigned a unique identifier and transacted with extra data attached. So yes, you can now become Bitcoin Banksy! (A satoshi is the smallest unit of Bitcoin currency, and there are 100,000,000 satoshis in a single Bitcoin.) The protocol, which is credited to Casey Rodarmor, effectively allows non-fungible tokens (NFTs) to be created directly on a Bitcoin blockchain. Bitcoin NFTs may also be referred to as Ordinal NFTs.