The term spherical trigonometry is identified in base64 scheme by the sequence c3BoZXJpY2FsIHRyaWdvbm9tZXRyeQ==, while the MD5 signature is equal to 07a03b9b8f0497951750120f4a38d633. The ASCII encoding of spherical trigonometry in hexadecimal notation is 73706865726963616c20747269676f6e6f6d65747279.