"On the internet, nobody knows you are a dog" is an oft quoted maxim from the 90s attributed to Peter Steiner. First appearing in The New Yorker, this meme illustrates the difficulty of establishing identity and, by extension, validating claims on the internet. Over three decades later, we still face the same challenges. In this realm of bits and bytes, one's identity is not merely a matter of name and lineage but of data and code, of certificates and encryption keys.