bitcoin/bitcoin — pull request #3191 by wtogami (2013-11-01 04:00:03+00:00)
Title: Check integrity of gitian input source tarballs

sha256sum verification of source tarballs during gitian build. This follows the earlier example in boost-win32.yml. This does not change anything about the gitian outputs.

**Test Plan**
* Search for multiple copies of the tarball and download them from multiple distros. Confirm that they match the sha256sum's in this commit.