A pseudonymous author is someone who writes and publishes their work under a fake name or a pen name. They choose to use a different name to remain anonymous or keep their true identity secret. Full definition
The Bitcoin white paper was first published to a cryptocurrency mailing list, and its pseudonymous author Satoshi Nakamoto requested feedback. (theverge.com)
The pseudonymous author, «Marcantonio Colonna,» has made numerous allegations, including some concerning financial mismanagement and malfeasance at the Vatican. (firstthings.com)
According to «Melissa Beech,» the pseudonymous author, she's... (thefrisky.com)