If you change your address or get a new passport, you can update your Blockpass profile.
The Blockpass application keeps the history of every modification. The certificates that you received earlier become outdated, but you can still send them when registering with new services.
The service will be able to match the hash in the certificate with the history. They may require additional evidence from you, like a new proof of address or a new certificate from official verifiers. They can also verify the new information themselves and issue a new certificate.