Carlton,
Thanks for your post. I had to revisit how I am verifying release signatures because you point out I am doing it wrong. I thought the code I shared in the fourth posting from the top was adequate but apparently there is more to it. Fortunately, I found a great YouTube video that shows how to correctly verify release signatures. Below I am sharing the link to it so it may help those in this community having a difficult time with this task:
https://www.youtube.com/watch?v=LbBzEy385LIBetween the 2:00 minute and 2:40 minute mark is where the video covers the subject at hand and it made me realize what I am doing wrong.
Moreover, I hope someone can clarify Terminal code below:
./configure
make
make install
Do I need to compile my Bitcoin Core tarball file and therefore by default need to use the commands shown above? Or does the command shown below take care of compiling as well?
sudo install -m 0755 -o root -g root -t /usr/local/bin bitcoin-0.18.0/bin/*
Lastly, I hope somebody in this community can provide an opinion on yet one more way on how to install Bitcoin Core. The YouTuber below shows how to convert a tarball file to a DEB using an application called Alien. Once converted to a DEB he installs Bitcoin Core using the Ubuntu Software Center application. Is this installation method better compared to manually installing the tarball file? I'm curious to know.
https://www.youtube.com/watch?v=pt44bAP2rMgI look forward to any feedback from members in this community.