The term skeletal structure is identified in base64 scheme by the sequence c2tlbGV0YWwgc3RydWN0dXJl, while the MD5 signature is equal to 6b636182b0c6305db8b17a3ab110c26c. The ASCII encoding of skeletal structure in hexadecimal notation is 736b656c6574616c20737472756374757265.