Ключевые слова: abstract, background, bit, bitcoin, blockchain, brown, btc, business, cash, chocolate, circle, close, closeup, coin, color, commerce, concept, crypto, cryptocurrency, currency, edible, electronic, exchange, finance, financial, gold, golden, green, monetary, money, pair, pattern, payment, round, shiny, surface, sweet, symbol, tasty, texture, trade, two, up, virtual,