Hash-Chain is used at run time in 7 crates (of which 1 optionally). It is a direct run-time dependency in 3 crates. It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) Hash-Chain version
270 4 ressa ^0.3
140 1 ressa_r ^0.3
cxx2flow ^0.3.2