I agreed with much of your note, but I don't think I agree with this
statement. As far as I know there has been no custodian chain that has
preserved uncorrupted information for nearly that long. Nor is there good
precedent for custodians remaining neutral. As far as I know, documents
that have lasted for thousands of years have generally lasted because the
were put on high quality materials and and becuase they were lost or
neglected for long periods of time.