Walter Benjamin famously argued that mechanical reproduction strips artworks of their "aura" — the unique presence that comes from an object's embeddedness in a particular time and place. A photograph of the Mona Lisa, however technically perfect, lacks the singularity of standing before the painting in the Louvre, and it is this singularity, Benjamin held, that gives great art its authority. Yet Benjamin wrote in 1935, when the technologies of reproduction were photography and film. He could not have anticipated the digital age, in which the question of authenticity has become both more acute and more philosophically complex.

In the digital realm, there is no original and no copy in the traditional sense — only identical instances of the same file. When a digital artwork is reproduced, nothing is degraded, attenuated, or lost in transmission. This challenges Benjamin's framework in a fundamental way: if the "aura" requires the original object's deterioration and mortality — the cracked varnish, the yellowed canvas — then digital works, which neither age nor degrade, may be permanently auratic or permanently auratic-less, depending on one's theoretical commitments.

The emergence of NFTs (non-fungible tokens) represents one attempt to restore scarcity — and therefore aura — to the digital domain. By cryptographically certifying a single instance of a digital artwork as the "authentic" version, NFTs effectively re-introduce the concept of the original into a medium that had seemed to abolish it. Critics argue that this is a purely financial construction with no aesthetic basis: the NFT-certified JPEG is visually indistinguishable from its non-certified copies. Proponents counter that the aesthetic experience was never solely about visual perception; the knowledge that one possesses the authenticated original has always been part of the experience of great art.

This debate ultimately returns us to the question of what we value in art and why. If our valuation is purely experiential — if what matters is the quality of perception afforded by the encounter with the work — then authenticity is largely irrelevant; a perfect reproduction is as valuable as the original. If, however, our valuation is bound up with history, craft, and the singular presence of the object itself, then questions of authenticity remain central even in an age when perfect reproduction is trivially achievable.