Polish indetifiaction numbers REGON and NIP are using Mod11 checksu checksum algorithm but with weights that does not increase linearly, e.g. 14 difgit digit REGON has weights: 2 4 8 5 0 9 7 3 6 1 2 4 8.
It would be nice to have the possibility to provide custom weights as a parameter to Mod1XCheck annotation.
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