Black outline icons for Bitcoin, digital wallet, blockchain links, and mining on white

Cryptocurrency and blockchain finance icon set on white background

Four simple black outline icons are arranged in a clean two-by-two grid on a white background. A Bitcoin coin sits at the upper left, a digital wallet with a contactless symbol at the upper right, a linked chain icon at the lower left, and a pickaxe with small cube shapes at the lower right. The composition feels like a flat vector illustration for fintech, crypto trading, and blockchain concepts. Strong contrast and generous negative space keep the design crisp and easy to isolate for presentations, websites, or app interfaces. The minimal linework gives the set a modern, technical mood without any extra detail or shading.