Add add-pubkey-blob-tag

diff --git a/add-pubkey/add-pubkey-blob-tag b/add-pubkey/add-pubkey-blob-tag
new file mode 100755 (executable)
index 0000000..ef91283
--- /dev/null
+++ b/add-pubkey/add-pubkey-blob-tag
@@ -0,0 +1,5 @@
+#! /bin/sh
+
+phd_public_key_hash="`gpg --export phd@phdru.name |
+                           git hash-object --stdin -w`" &&
+exec git tag phd-public-key-B6287B03 "$phd_public_key_hash"