There are numerous ways to install Bitcoin Core in Ubuntu:
Install Via Downloaded Package from bitcoin.org
Download Bitcoin Core: https://bitcoin.org/en/download
Select Linux (tgz), which will trigger a download - at the time of writing:
Download the release signature document. At the time of writing, this is here: https://bitcoin.org/bin/bitcoin-core-0.14.2/SHA256SUMS.asc. This downloads
This file is a signed PGP message that contains the SHA256 sums for the various Bitcoin core downloads. By comparing the relevant value with the SHA256 sum of the
bitcoin-0.14.2-x86_64-linux-gnu.tar.gz that you have downloaded, you can verify the authenticity of what you have downloaded.
You should first verify that the signature document itself is authentic. This is done using Gnu Privacy Guard (GPG)
Verification of the Signatures Document
Download the relevant GPG signing key - these are presented on the download page under the title “Bitcoin Core Release Signing Keys”. Click the correct version to download the relevant key. At the time of writing, this is
~/Downloads directory should now contain:
Import the Public Key
Move into your
~/Downloads directory and run:
Check Signatures Document
You can now establish the authenticity of the signatures document by running:
Check the Authenticity of the Download: SHA256 Checksum
You can now use the signatures document to establish the authenticity of the Bitcoin download.
Note: the tar.gz file provided for download doesn’t appear to contain source files (as suggested here), so you can’t use this to compile. It does include binaries.
Install Via Github
You can clone Bitcoin source code from Github, and compile from this.
There are quite a few dependencies - these are outlined in the
doc/build-unix.md document: https://github.com/bitcoin/bitcoin/blob/master/doc/build-unix.md.
I haven’t installed Bitcoin in this way. This is probably a good method as you’ll be pulling the files over an encrypted connection - so long as you trust that the Github repo has not been tampered with (which makes Github probably as trusted an installation route as the downloadable binaries).
Install Via PPA
To install via PPA, add
ppa:bitcoin/bitcoin to your system’s Software Sources:
This is the stable Channel of bitcoin-qt (GUI) and bitcoind (CLI) for Ubuntu. The Launchpad description actually recommends use of the official binaries, where possible, to limit trust in Launchpad/the PPA owner.
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