j"1LAnZuoQdcKCkpDBKQMCgziGMoPC4VQUckLÁ<div class="post">You're trying to solve:<br/>SHA256(SHA256(d'))==256-bit number<br/><br/>This still has 256 bits of security, and you have to do two hashes per attempt to brute-force it.</div> text/html
https://whatsonchain.com/tx/ae4a05ab9894bc58bbdd20fcaa7b4485cc9cfb75b8cb94095a0e36ebc8840a4a