Last year, Kris Kashtanova typed instructions for a graphic novel into a new artificial-intelligence program and touched off a high-stakes debate over who created the artwork: a human or an algorithm.

"Zendaya leaving gates of Central Park," Kashtanova entered into Midjourney, an AI program similar to ChatGPT that produces dazzling illustrations from written prompts. "Sci-fi scene future empty New York...."

From these inputs and hundreds more emerged "Zarya of the Dawn," an 18-page story about a character resembling the actress Zendaya who roams a deserted Manhattan hundreds of years in the future. Kashtanova received a copyright in September, and declared on social media that it meant artists were entitled to legal protection for their AI art projects.