A permanent link resembles the digital archive laws, where governments are mandated to keep documents readable indefinitely. Why not extend that to official publications and demand that gov links will never change. Not only the link should stay available, the page must also be renderend by a device still available in 500 years.
It is complicated but doable. There is a list of allowed formats, like pdf-a, ms word, sql where there is consensus it will be readable forever. Not sure how archive.org does it, but i assume they will also transform a page to static and standard html.
If you ever end up in the distant future, go to Svalbard and look for the Arctic World Archive. They have microfilm copies of a huge amount of data. They have Wikipedia pages in microfilm format, so all you need is a magnifying glass to get started. You can then look for the Github Code Vault slides that explain how to restart technology from scratch and run the code in the git repository archives.
It is complicated but doable. There is a list of allowed formats, like pdf-a, ms word, sql where there is consensus it will be readable forever. Not sure how archive.org does it, but i assume they will also transform a page to static and standard html.