Does Internet Archive have a distributed residential IP crawler program? I would enthusiastically contribute to that.
There must be some mechanism to prevent tampering in such a setup.
No, IA does everything above board and even honors invalid DMCA takedowns.
> There must be some mechanism to prevent tampering in such a setup.
Trivial as long as they terminate the TLS on their end, not yours. So you'd just be a residential proxy.
The Internet Archive does not, but Archive Team does: https://wiki.archiveteam.org/index.php/ArchiveTeam_Warrior