The term scribing block is identified in base64 scheme by the sequence c2NyaWJpbmcgYmxvY2s=, while the MD5 signature is equal to 31b149bb7a3883ccc56a3d65a1e13b7e. The ASCII encoding of scribing block in hexadecimal notation is 7363726962696e6720626c6f636b.