THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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$ brew install gpg2 coreutils
$ gpg2 --import ../KEYS
$ gpg2 --verify apache-mxnet-src-#.#.#.rc0-incubating.tar.gz.asc
#sha512sum or md5sum below if not in mac
$ gsha512sum --check apache-mxnet-src-#.#.#.rc0-incubating.tar.gz.sha512
$ gmd5sum --check apache-mxnet-src-#.#.#.rc0-incubating.tar.gz.md5
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