How do I update delete my metadata in the registry?

Removing metadata from the registry is an ad-hoc process. If this was allowed without verification, anyone could delete metadata of anyone. Therefore, there are two cases:

I need to update my metadata and my private/public owner keys are the same.

Then, the procedure is the same as for registering new metadata:

• Update your JSON file
• Produce a new signature that will replace the existing one
• Submit a pull request

I need to register different private/public owner keys but I want to keep the same ticker.

Here, you'll have to make two pull requests:

PR A

• Update your previous registration's ticker to VOID + a number that isn't currently taken (e.g. VOID2).
• Produce a new signature to replace the existing one
• Submit a pull request
• Make sure to indicate your previous PR as a comment of that PR and explicitely mention that you are voiding this registration and want it to be deleted.

PR B

• Create a new registration re-using your previous ticker
• Name it after your new public key
• Submit a pull request
• Make sure to mention your "void PR" as a comment so that it's clear.

This PR will fail to pass CI until the first one is merged. This is normal.