7. A method to identify subject content, the method comprising: receiving a hash value associated with an information signal, the hash value comprising one or more reliable hash bits and one or more unreliable hash bits; interrogating a look up table with the one or more reliable bits to determine one or more matching stored hash values; for each of the one or more matching stored hash values, calculating, by a computer, a bit error rate, the bit error rate representing a relationship between the one or more bits of the hash value and the corresponding bits of a matching stored hash value from the one or more matching stored hash values; selecting a matching stored hash value from the one or more matching stored hash values, for which the bit error rate is minimal; and identifying the matching stored hash value, for which the bit error rate is minimal, as the matching stored hash value associated with the subject content.
7. A method to identify subject content, the method comprising: receiving a hash value associated with an information signal, the hash value comprising one or more reliable hash bits and one or more unreliable hash bits; interrogating a look up table with the one or more reliable bits to determine one or more matching stored hash values; for each of the one or more matching stored hash values, calculating, by a computer, a bit error rate, the bit error rate representing a relationship between the one or more bits of the hash value and the corresponding bits of a matching stored hash value from the one or more matching stored hash values; selecting a matching stored hash value from the one or more matching stored hash values, for which the bit error rate is minimal; and identifying the matching stored hash value, for which the bit error rate is minimal, as the matching stored hash value associated with the subject content. 9. The method of claim 7 , wherein the subject content is video content.