Amazon is laying the groundwork to give its customers the ability to purchase NFTs tied to real-world assets that are delivered to their doorstep, according to three sources familiar with the matter.

The move is a significant upgrade from the e-commerce giant’s earlier steps in developing its NFT platform, a move previously reported by Blockworks. And the company is planning to notify every Amazon Prime customer — at least in the US — of its digital collectibles initiative once it goes live, an additional two sources said.