in bitadress.org in brain wallet when i type passphrase "satoshi nakamoto" it generates privatekey different than what a normal sha256 online calculator generates. Why sha 256 of bitaddress gives different private key than a normal sha256..
below is example
https://i.imgur.com/2EPUBWw.jpghttps://i.imgur.com/vrerpiP.jpgprivate keys generated by both for same phrase i
BTCs different
WHY??