Meet the Artist

The entire Sirius Collection was hand-drawn by one artist: FatalPen. Soft-spoken but fiercely dedicated to her craft, she brings a rare mix of warmth, precision, and storytelling to every piece. Her work sits at the crossroads of character design, memes, and lore—perfect for a collection that honors one of Bitcoin's earliest builders, Martti "Sirius" Malmi.

Before Sirius, FatalPen was already quietly shaping the visual language of Base. She is one of the original artists behind "Toshi," the cat mascot meme that went on to inspire one of the network's most recognizable and successful meme projects. Beyond Toshi, she has contributed art to multiple NFT collections, PFP projects, and brand campaigns across Web3.

With Sirius, she shifts from drawing mascots to capturing the builder spirit itself—blending nods to early Bitcoin forums, terminals, and internet culture into a cohesive visual universe. We're honored to have FatalPen as the artist behind the Sirius Collection and grateful that her lines, textures, and imagination are what bring this story to life on Base.