signature
checking
timestamp
checking
manual
key
file
preview
usage
gpg --import DC96A97C0283AF8BA4BB51C1DAD7902C1932C290.asc
gpg --verify post.md.asc post.md
openssl ts -verify -in post.md.tsr -data post.md.asc -CAfile cacert.pem -untrusted tsa.crt
openssl ts -reply -in post.md.tsr -text | grep 'Time stamp'
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