For proof, clicking on [this URL](https://www.deviantart.com/oogieboogieknight/art/Down-back-554922304) using the old name (NSFW warning) automatically redirects to the new one.
[artist:jaeh gigz](/tags/artist-colon-jaeh+gigz) (seemingly an old name, if [this FurAffinity image](https://www.furaffinity.net/view/3492494) is anything to go by) -> [artist:jaehthebird](/tags/artist-colon-jaehthebird) (current [DA](https://www.deviantart.com/jaehthebird) and [Twitter](https://twitter.com/Jaehthebird) username)