diff --git a/.gitignore b/.gitignore
index 197b461..d269cf7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/1.2.1.tar.gz
+/1.2.1.tar.gz
diff --git a/.jaf.metadata b/.jaf.metadata
new file mode 100644
index 0000000..c06dd84
--- /dev/null
+++ b/.jaf.metadata
@@ -0,0 +1 @@
+5e47e6a48553033ca43ea1b7e09ff532ddc701be 1.2.1.tar.gz
diff --git a/sources b/sources
index 85fc3b2..d3d3801 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (1.2.1.tar.gz) = 5e47e6a48553033ca43ea1b7e09ff532ddc701be
+SHA512 (1.2.1.tar.gz) = cc0b28e71477f28d0d2cbe010bf98641ab4479d42b200cc98e45042fb09e297a5e0bc6195a2a220bd37d784d69fe2667d72aee34e23746710bcaf89c24de0866