I think I know. Now.

In addition to changing the way records need to be requested from LC, LC also changed the format of those records. But I believe that LC also has a cache of records that exists to speed up requests, and records in that cache used the old format. That explains why the terms I was using for testing were all successful-they were in the cache; why some fields had inconsistent results (one heading verified, one failed); and other records were complete failures. The complete failures were for things not in the cache, which came through in the unexpected new format.

I have made allowance for the new format in my code, and I have then had success with all of the examples people have sent me.

So I need to find a USB drive (long story) and then I can make a new installer.

Gary L. Strawn
Northwestern University Libraries
Northwestern University
1970 Campus Drive, Evanston IL 60208-2300
e-mail: [log in to unmask]<mailto:[log in to unmask]>
office: 847/467-7240
storage facility: 847/467-4619
authority toolkit documentation:
Forsan et haec olim meminisse iuvabit

From: Program for Cooperative Cataloging <[log in to unmask]> On Behalf Of Shorten, Jay
Sent: Wednesday, August 12, 2020 4:44 PM
To: [log in to unmask]
Subject: Re: [PCCLIST] New authority toolkit version available

My 370 verification is still not working, but I'm not sure why.