A Fingerprint, as Ethent uses the term, is a unique mathematical representation of a value like the dollar amount or payee written on a bank check. This fingerprint is a sequence or string of 0s and 1s and can be written as a hexadecimal number where each hex number or letter is equal to a sequence or string of four numbers each of which is either a 0 or a 1.

For example if the value $945.62 was converted to a Fingerprint that was a sequence or string of one hundred sixty 0s and 1s, the hexadecimal number might be written with these 40 digits:

• 5a37b15891678db6b6f77ab35cde7949a20dcc1c

A Fingerprint is One-Way if the original value (for example, $945.62) cannot be calculated from the Fingerprint (for example, the sequence or string of one hundred sixty 0s and 1s).

Thus, a One-Way Fingerprint is:

• a Fingerprint because it is a unique mathematical representation of a value, like the dollar amount or payee on a bank check.
• One-Way because the value, like the dollar amount or payee, cannot be calculated from the Fingerprint.

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