It does sound similar to the underlying PC emulator (http://bellard.org/jslinux/tech.html) and Bellard does indeed list v86 in section "Similar Projects (Several other PC or Linux emulators are now available)"
The v86 project's initial release was late 2013 (https://github.com/copy/v86/commit/8180d49f24833fc6cc05a9025...) about 2 years after Bellard's (http://bellard.org/jslinux/news.html)
It does sound similar to the underlying PC emulator (http://bellard.org/jslinux/tech.html) and Bellard does indeed list v86 in section "Similar Projects (Several other PC or Linux emulators are now available)"
The v86 project's initial release was late 2013 (https://github.com/copy/v86/commit/8180d49f24833fc6cc05a9025...) about 2 years after Bellard's (http://bellard.org/jslinux/news.html)