This is an@sha from bitcointalk.org and today is the 28th of September 2018.
I publish my guide to sign message with bitcoin addresses and all related pictures under CC BY-SA 3.0
link to guide : https://bitcointalksearch.org/topic/bitcoin-5039756
link to license: https://creativecommons.org/licenses/by-sa/3.0/
-----BEGIN SIGNATURE-----
17zGVArM3ZTMKTR2agYojUEeYd5gXt6bZR
IMY/TQzrwHfE0+rnRlpZM2Q8DO/XYaLjCv6RtxMZXMSDYIHZfPygv4SE/QvDu/3aDGqz/hnpr560zmwScH9WEpo=
-----END BITCOIN SIGNED MESSAGE-----
Quoted for future reference and verified using http://brainwalletx.github.io/#verify?vrAddr=17zGVArM3ZTMKTR2agYojUEeYd5gXt6bZR&vrMsg=This%20is%20an%40sha%20from%20bitcointalk.org%20and%20today%20is%20the%2028th%20of%20September%202018.%20%0AI%20publish%20my%20guide%20to%20sign%20message%20with%20bitcoin%20addresses%20and%20all%20related%20pictures%20under%20CC%20BY-SA%203.0%20%0Alink%20to%20guide%20%20%3A%20https%3A%2F%2Fbitcointalk.org%2Findex.php%3Ftopic%3D5039756%20%0Alink%20to%20license%3A%20https%3A%2F%2Fcreativecommons.org%2Flicenses%2Fby-sa%2F3.0%2F&vrSig=IMY%2FTQzrwHfE0%2BrnRlpZM2Q8DO%2FXYaLjCv6RtxMZXMSDYIHZfPygv4SE%2FQvDu%2F3aDGqz%2Fhnpr560zmwScH9WEpo%3D