TXB0104QPWRQ1 & LSF0108PWR - Body marking definition

We purchased these IC from open market, found a different body marking from the batch that we had purchased from authorize distributor.

We would like to confirm the authenticity of these component, but unable to find the definition of the body marking from the datasheet.

Hopefully I can get the advise here to confirm the interpret, is the marking represent the date code/ lot code / location code/ others?