The term high-level radioactive waste is identified in base64 scheme by the sequence aGlnaC1sZXZlbCByYWRpb2FjdGl2ZSB3YXN0ZQ==, while the MD5 signature is equal to b4f3ff764719e8de8899afed88abcd1c. The ASCII encoding of high-level radioactive waste in hexadecimal notation is 686967682d6c6576656c20726164696f616374697665207761737465.