Technically, no. The copyright is likely owned by Omega Project (Japan) and Media Blasters (US). Since the film is commercially unavailable in many regions (physical copies sell for $50+ on eBay), the Archive operates in a preservationist loophole. The Archive’s staff generally removes files only upon a formal DMCA takedown request from the rights holder. To date, no major takedown of Ichi has been permanent.

If you can't find a high-quality version on the Archive, the movie is currently available to stream for free with ads on Accessing the Manga and Artbooks The Internet Archive's Open Library

Running at (Confusion abounds). The true uncut Japanese version includes the opening sequence of the Yakuza boss in the bathtub with the child—a scene so disturbing it was removed to avoid potential legal issues in the West. Look for file descriptions containing words like "Japanese Theatrical Cut," "No Censorship," or "R18+ Raw."