On a stormy March day in 2025, the artist Jim Sanborn bid farewell to his enigmatic copper sculpture, Kryptos. For three decades, he had struggled with cryptanalysts and deluged solutions. In a daring move, Sanborn auctioned off the answer for a whopping $986,000, setting up Paradigm, a crypto-focused VC firm, as the new guardians of the mystery.

Sanborn’s retirement was secured, but the puzzle remained. Two researchers, Jarett Kobek and Richard Byrne, found the plaintext hidden in Sanborn’s archives at the Smithsonian, only to keep it secret until after the auction. Now, Paradigm is offering a $1 submission fee and intriguing challenges to uncover K4’s secrets.

Underlying this puzzle lies a deeper mystery: what happens when K4 is finally cracked? The answer might unlock K5, another enigmatic panel that Sanborn hints at in his public artworks. As the world watches, both the intelligence community and crypto enthusiasts await the next twist in this decades-long saga.

Despite handing over his secrets, Sanborn remains involved. He’s providing a teaser to K5 and hopes that solving K4 will bring closure, but he suspects that his legacy might endure through his art. Is Kryptos a mere puzzle or a gateway to something more profound?