After creating a great deal of noise in the crypto world by auctioning a collection of Amitabh Bachchan NFTs (non-fungible tokens) for Rs 7 crore, Indian blockchain start-up GuardianLink wanted to appeal to global pop culture aficionados. So, the next step was to create an NFT collection of an international celebrity.

       And it zeroed in on legendary comic book creator Stan Lee for this. But soon after the NFTs of Chakra: The Invincible were launched on GuardianLink in December, similar rip-offs were put up for auction on OpenSea, an NFT platform that is considered to be one of the ...