This sort of question have been answered a multiple times already https://bitcointalksearch.org/topic/stake-your-bitcoin-address-here-996318
For future question like this just use search function.
Topic: How do PGP keys work? (Read 118 times)
If someone posted a message like this, how would you find the public key and how would you verify the identity?
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
some text
-----BEGIN PGP SIGNATURE-----
some text
-----END PGP SIGNATURE-----
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
some text
-----BEGIN PGP SIGNATURE-----
some text
-----END PGP SIGNATURE-----
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