UID2 Tokens and Refresh Tokens
When a publisher sends a user's DII—hashed or unhashed email addresses or phone numbers—to the UID2 Operator, whether via one of the UID2 SDKs or the POST /token/generate endpoint, the UID2 Operator converts the DII to a raw UID2, encrypts it into a UID2 token, and returns the UID2 token with associated values, including a refresh token. The publisher can then use the UID2 token in the bidstream.