Primitives.HashVariable-length hex hash (0x-prefixed).
val make : string -> (t, validation_error) Stdlib.resultval unsafe_of_string : string -> tval to_string : t -> stringval pp : Stdlib.Format.formatter -> t -> unitval of_yojson : Yojson.Safe.t -> (t, validation_error) Stdlib.resultval to_yojson : t -> Yojson.Safe.tval yojson_of_t : t -> Yojson.Safe.tval t_of_yojson : Yojson.Safe.t -> t