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PAN Fidelius Token
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Danger Zone
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Description
A hashed representation of a Primary Account Number (PAN), used to pseudonymously link and identify payment events without exposing raw credit card details.
An identifier a source assigns to a person, such as a member, customer or user id, as the source gives it. Ids join only within the same id space. Never empty or only spaces.
SHA-256 of a normalized email, `SHA2(NORMALIZE_EMAIL(email), 256)`: lowercase hex, 64 characters. Hashes of un-normalized emails won't join. The SHA-256 of an empty string, `e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855`, isn't a hash of any email and reads as NULL.