The next revision of the specification is going to include a context
string in the way blinded scalars are computed.

See:
https://github.com/cfrg/draft-irtf-cfrg-signature-key-blinding/issues/30#issuecomment-1180516152
https://github.com/cfrg/draft-irtf-cfrg-signature-key-blinding/pull/37