I’m not familiar with that.
However it is possible and easy to compute expand bit pairs between two SDRs as in triadic memory.
In @POv 's terminology, “diadic” refers to auto correlating bit pairs within a single SDR and “triadic” to bit pair correlations between two SDRs.
In the original post I outlined only the diadic expansion to keep message short and also because I consider it the most general form of the two. Bit pairing between two SDRs is only a subset of what you get by applying bit pairing to a concatenation of the same SDRs.