Method for accessing information on object having tag, local server, ons proxy, program, tag creation method, device having tag writer, tag, and program for controlling device having tag writer

Method for accessing information about an article with a label affixed thereto, local server, ons proxy, program, label creation method, apparatus including a label printer, label and program for controlling a device including a label printer. The invention provides a method for accessing information about an article with a label attached thereto, the method making it possible to prevent information about an article used by the subject from being picked up by a label reader installed in a public space, without sacrificing the ability to Tracking and without involving much increase in cost, a local server, an ons proxy, a program, a label creation method, a label printer and a label printer control program. According to the invention, There is provided a method for providing access to information about articles associated with tags in a network system, including a local server, an ons proxy, an ons server and at least one pml server, the method comprising the steps of: Reading the local server, through the use of a label reader connected to the local server, the data stored in a label comprising at least one encrypted virtual id; The local server sending an ons server request, including the virtual id for the ons proxy; The ons proxy acquiring an article id by decrypting the virtual id through the use of a key k; The ons proxy generating, through the use of the article id, a network address request to acquire the network address of a pml server, Where the information about the article associated with the tag is stored, to send the request to the ons server; The local server receiving the network address from a pmt..j server, that the ons server returned in response to the network address request; The local server sending, via the network address of a pml server, a pml server request, including idvirtual, to the pml server; And the pml server providing access to the article information associated with the tag, which was specified with the article id acquired by decrypting the virtual id by using the k key, for the local server. That the ons server returned in response to the network address request; The local server sending, via the network address of a pml server, a pml server request, including idvirtual, to the pml server; And the pml server providing access to the article information associated with the tag, which was specified with the article id acquired by decrypting the virtual id by using the k key, for the local server. That the ons server returned in response to the network address request; The local server sending, via the network address of a pml server, a pml server request, including idvirtual, to the pml server; And the pml server providing access to the article information associated with the tag, which was specified with the article id acquired by decrypting the virtual id by using the k key, for the local server.