9. The method of claim 8 wherein the decoder determines that the set of markers are reordered sentences as the one or more characters replaced, and the information is encoded in replaced sentence locations according to the encoding strategy.
8. A computer-implemented method for document authentication and identification, comprising: receiving a digitized document; comparing the digitized document to a set of markers to determine whether the digitized document is an encoded document with one or more text characters replaced, wherein the one or more text characters replaced includes at least one letter, number, symbol or space changed to another letter, number, or symbol; in response to determining that the digitized document is an encoded document with one or more characters replaced, extracting information from the set of markers using a decoder according to an encoding strategy; and comparing the extracted information and the set of markers with data stored in an encoding history to authenticate and identify the received digitized document.