The term osculating circle is identified in base64 scheme by the sequence b3NjdWxhdGluZyBjaXJjbGU=, while the MD5 signature is equal to 492b9bdc6406c2f6412d763029b73abc. The ASCII encoding of osculating circle in hexadecimal notation is 6f7363756c6174696e6720636972636c65.