Ключевые слова: altcoin, art, background, bitcoin, black, blockchain, coin, collectibles, color, colorful, contour, crypto, cryptocurrency, currency, decentralized, design, digital, ethereum, exchange, finance, fungible, future, icon, identifier, illustration, innovation, investment, isolated, line, linear, lineart, modern, money, network, nft, non, outline, pay, payment, pink, technology, token, trade, transaction, unique, web,