All calls to the permid.org / # return a 404 response. You are able to search for a given company but when you request the permid.org/# (https://permid.org/1-4295905573) detail content it returns a 404 error - Page not found.
This is a known issue.
Due to a technical outage that is impacting Open PermID, you cannot currently use PermID URIs to retrieve content. So although Entity Search, Record Tagging, and Intelligent Tagging are still fully functional, the PermID URIs that are found in the response cannot be used to retrieve entity details (404 error). This is a temporary issue that will be resolved as soon as possible (~ 1-2 weeks). There is no known work around.