I found a lead at:
http://whitneyindustries.com/b/?p=17
And upon reboot, I can see a collection, but it appears to be empty and nothing can be moved into it. I can rename it or delete it. I may have to cave to the corporate machine (unlikely) or live with a very long list of PDFs.
And for those who are curious, the format is much simpler than I thought (assuming it's correct):
Code:
{"collection name@en-US":
{"items":["*sha1","*sha1","*sha1",...],
"lastAccess":longInt},
"collection name@en-US":
{"items":["*sha1","*sha1","*sha1",...],
"lastAccess":longInt}
}
where
collection name should be pretty obvious,
sha1 is the hex string for the SHA1 hash of each file in the collection, and
longInt is a long integer representation of the date. The Kindle overwrites this. The Python program sets it to zero initially, but when I fetched it back after uploading it and rebooting, the Kindle had changed it.