How to sign a message?!

[Chikito]

Sorry for Bumping up the old thread. I was here because I didn't have any idea about how this works. I have learned how to sign a message from my own wallet.
I have found that Blocktrail has announced their service ended in 2019, But, This thread wasn't updated. The thread creator is not active for a long time now. Since this thread is very useful for newbies (Even for some hybrid Sr. members like me ), I think I am doing right by Bumping up this thread.

OP didn't active for 2 years so he can't moderate it, the possibility to edit and change the thread is a moderator.
but, when I read up the thread it's just for verifying messages, which show how to which the same what another wallet did. So, I think it can be continued by using another website in the same way.

[Cantsay]

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
Thank you Shorena for the great tutorial, I'm signing this message to show that I didn't only just look at the post but also learnt something from it.
-----BEGIN BITCOIN SIGNATURE-----
Version: Bitcoin-qt (1.0)
Address: 1Ex3cMqXFAnjPi6T6SEySF37Pvu3172bkh

IIX+WViyUfeFDIh+XyI1V3NkNAlw9HPGBATNlcpFh2iaW/2WzSZHftRJTDF7JIHYcnlvBRd86GFFGHgRJmNohcg=
-----END BITCOIN SIGNATURE-----

Edit:

It looks like he accidentally added a single whitespace at the end of the message (after the dot

Thanks for spotting the error, I have corrected and verified it with mycelium wallet. But I will still appreciate if you can also verify the message for me.

[SFR10]

~Snipped~

It seems that something is wrong with your signed message ^{[e.g. it could be an extra space or something like that]}... I had no luck in verifying it with Bitcoin Core, Trezor Suite, Electrum, and Brainwallet!
^{- Sign another message and check if you can verify it on "Brainwallet".}
You might want to sign a message on the following thread as well: Stake your Bitcoin address here

Update:

It looks like he accidentally added a single whitespace at the end of the message (after the dot) but omitted it in that reply.
But it can't be verified by any tool aside from Brainwallet's Verify Message - Bitcoin-QT tab and manually adding the "space".

Great catch

[nc50lc]

~Snipped~

It seems that something is wrong with your signed message ^{[e.g. it could be an extra space or something like that]}... I had no luck in verifying it with Bitcoin Core, Trezor Suite, Electrum, and -snip-

It looks like he accidentally added a single whitespace at the end of the message (after the dot) but omitted it in that reply.
But it can't be verified by any tool aside from Brainwallet's Verify Message - Bitcoin-QT tab and manually adding the "space".

His signed message in this board can be verified though: /index.php?topic=5300698.msg60497828#msg60497828