That is bad advice. You don't sign confidentiality agreements over a public document. The copyright registrations are a public matter and publicly available. However, because of the antiquated system, it can be difficult to search and determine the correct ones.
I have read a lot of advice on various websites. Some of the advice that deviate from what ELI espouses are not ones I recommend. They may think they know a lot based on a couple of extortion letters but I say that we have a much larger mindshare, we see more, and have a broader perspective on the issue.
As far as I know, no entity aside from ELI has seen, reported, or dealt with as many stock photo/imagery extortion letters as we have. We work as a collective team effort with many eyes and ears here.
I have read a lot of advice on various websites. Some of the advice that deviate from what ELI espouses are not ones I recommend. They may think they know a lot based on a couple of extortion letters but I say that we have a much larger mindshare, we see more, and have a broader perspective on the issue.
As far as I know, no entity aside from ELI has seen, reported, or dealt with as many stock photo/imagery extortion letters as we have. We work as a collective team effort with many eyes and ears here.
What I've read from the forums and everywhere else so far is to request for the actual Certificate of Registration from the US Copyright Office from Getty (in your case, LCS). And of course, after that they would supposedly reply that it is confidential, in which case... you should tell them that you are willing to sign a confidentiality agreement. That's as far as I know.