Master Identity Record
The unified, canonical record for one identity — aggregating attributes from every authoritative source, each tagged with where it came from and when.
aka: identity cube, identity warehouse
Often implemented as an “identity cube” or “identity profile” inside a governance platform, the master record is what the rest of the identity program reads and writes against, so it has to survive a normalize-validate-error-queue pipeline that catches conflicting or malformed data before it corrupts anything downstream.