This interactive visualization displays a Bitcoin transaction network as a node-link diagram with force-directed layout. Nodes represent transaction addresses, and links show transactions with stroke width proportional to transaction weight. The network is rendered as SVG circles and lines, animated through a physics simulation using `d3.forceSimulation` with `forceLink`, `forceManyBody`, and `forceCenter` forces. Node drag interaction and a hover tooltip showing node ID and total weight are implemented. Data is loaded from a remote CSV file.