The term tighten one's belt is identified in base64 scheme by the sequence dGlnaHRlbiBvbmUncyBiZWx0, while the MD5 signature is equal to 2de781fe3eccf9bd61a582c109905f0a. The ASCII encoding of tighten one's belt in hexadecimal notation is 7469676874656e206f6e6527732062656c74.