serialisation
C1CEFR level
65/100Rarity: rare
TechnicalRegister
The assignment of a unique identifier to each individual item so it can be tracked and authenticated.
Serialisation of every pack lets us verify authenticity and pull counterfeits from the chain.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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