Latest copyright registrations in the Catalog of Registrations, as they are added throughout the day. Each feed item is an individual copyright record in human-readable format, with a link to the record in the Latin-1 MARC format. This is a high-volume feed (more than 10,000 items/day) that refreshes every 10 minutes, so feed readers should be set to update at least that often. If you're maintaining an archive of all copyright records, you should not use this feed — the bulk feeds are the correct and best (most reliable/efficient) way to do that. If you were to use this feed with its 10-minute TTL for that purpose, your database would inevitably develop gaps.

A daily archive of all copyright records added the previous day, in Latin-1 MARC format. Each day's records are combined in a single gzip-compressed tar-format archive.