The term tongue and groove joint is identified in base64 scheme by the sequence dG9uZ3VlIGFuZCBncm9vdmUgam9pbnQ=, while the MD5 signature is equal to 967d149bbc457763e3f1a1e2052c61dc. The ASCII encoding of tongue and groove joint in hexadecimal notation is 746f6e67756520616e642067726f6f7665206a6f696e74.