attestation object: include valid_from & valid_to attributes representing the validity of the attestation in contrast to the validity information in the meta object which states the to be validity period of the credential
identity object: rename family_name_at_birth and given_name_at_birth to family_name_birth and given_name_birth to match the current PID namespace
meta object: remove first_name, last_name and date_of_birth as this information shall be and is specified in the identity object
meta object - revocation object: change follow_up_credential to reference as functionality of this attribute can change/ be extended and shall be named more generic