7. The method of claim 1 , wherein the first slot comprises a greater number of nucleotides than does the first token, and wherein the chemical bonding further comprises bonding a marker molecule to each nucleotide of the first slot that is not bonded to a nucleotide of the first token.
7. The method of claim 1 , wherein the first slot comprises a greater number of nucleotides than does the first token, and wherein the chemical bonding further comprises bonding a marker molecule to each nucleotide of the first slot that is not bonded to a nucleotide of the first token. 8. The method of claim 7 , wherein the marker molecule is a hydrocarbon that comprises an open bond that may bond with an oxygen atom of a phosphate group.