Ключевые слова: art, authorship, blockchain, closeup, coin, concept, content, create, creation, creative, crypto, cryptocurrency, cryptographic signature, cryptopro, currency, decentralized, development, digital, display, erc, ethereum, future, hand, idea, identifier, illustration, innovation, investment, laptop, media, modern, money, nft, nonfungible, pay, payment, protocol, safety, sale, screen, stylus, tablet, tablet computer, technology, token, touchscreen, trade, transaction, unique, use,