The term centre of curvature is identified in base64 scheme by the sequence Y2VudHJlIG9mIGN1cnZhdHVyZQ==, while the MD5 signature is equal to fc876fe7639a206b13c5cd8c95453fcd. The ASCII encoding of centre of curvature in hexadecimal notation is 63656e747265206f6620637572766174757265.