One of the long term targets of Trismegistos is to facilitate linking to sources, e.g. by the (invisible) use of Trismegistos numbers to identify texts in online publications. This implies the implementation of an old number database, keeping track of numbers that are no longer in active use, e.g. because of linking of fragments or because of mistakes.
Eventually it is our aim to provide a similar system of stable numeric identifiers for people. In its current state, however, too many identifications are still to be implemented, and imposing an ‘old-number system’ would slow down this process. We have therefore decided against it at this stage, but hope to develop it in the future.
For names the numbers should be more stable and we will be able to integrate an old number system soon, probably early 2012.