> [!NOTE] > This version is no longer recommended for use and will be retired in 2026. Identity data verification checks personal information such as name, address, date of birth and/or national ID from various data sources to quickly confirm if an individual is who they claim to be. - [[LookupPerson - legacy]] - LookupPerson service looks up the address data for residents existing in the national population register by `countryCode` and a national `PersonalNumber`. The response can be either exactly one **[address](https://docs.zignsec.com/faq/common-data/#addressmodel)** hit, or empty if no match was found. For found persons the return field PersonStatus indicates the status, where empty status is the default and normal value, see below table. - [[SearchPerson - Legacy]] - It will return an array of the best matches according to the specific querying rules for the national population register provider for the countries Sweden, Norway and Finland. In Denmark you will get a single response. - [[VerifyPerson - Legacy]] - VerifyPerson service looks up a citizen’s address and birth data from the national population registry, by a narrowing query workflow with 18 separate query steps. The query must include the `countryCode`, and currently only countryCode “se”, Sweden, is supported. - [[ValidateIdentity - Legacy]] - This service verifies a person’s address or identity information such as name and address via background data source lookups in a multitude of registers. The list of supported countries is large and is expanded through quick configuration.