Raw Hi-C matrix is usually huge and tedious to generate from sequencing data available online. A sample of Hi-C matrix, maybe pseudo one, is convenient for debugging.
OpenMM Polymer contains an example code which run a MD simulation of "beads-on-a-string" model of chromatin. This can produce various size of pseudo Hi-C matrices.
Raw Hi-C matrix is usually huge and tedious to generate from sequencing data available online. A sample of Hi-C matrix, maybe pseudo one, is convenient for debugging.