The term sergei aleksandrovich koussevitzky is identified in base64 scheme by the sequence c2VyZ2VpIGFsZWtzYW5kcm92aWNoIGtvdXNzZXZpdHpreQ==, while the MD5 signature is equal to 3f1d98d084500a8020c6c49950b2f7bb. The ASCII encoding of sergei aleksandrovich koussevitzky in hexadecimal notation is 73657267656920616c656b73616e64726f76696368206b6f757373657669747a6b79.