diff --git a/itm-zchain.pdf b/itm-zchain.pdf index cefdf6e..bc693d6 100644 Binary files a/itm-zchain.pdf and b/itm-zchain.pdf differ diff --git a/sietch.pdf b/sietch.pdf new file mode 100644 index 0000000..f59ae90 Binary files /dev/null and b/sietch.pdf differ