Well,
                  certainly, if you have such a document, just have it.
                  You may have
                  even several documents certifying several your
                  identities. Yes. Why
                  not? There are people who maintain that “I” consists
                  of many
                  persons – well, of several persons, it doesn't matter
                  if the number does or does not matter – and each of
                  these smaller
                  “I”s (let me write “i” to make things easier and more
                  clear)
                  should have its (or i's) own document. This is
                very interesting
                concept. “i”s can have either a diachronic aspect
                (i-past,
                i-present, i-future...) or a synchronic or a
                synchronic-space aspect (i-internal,
                i-external, i-as-i-seem-to-be, i-social, i-familial,
                i-individual...) The
                phenomenon of bilocation or staying simultaneously in
                two places,
                even quite distant, seems nothing special or
                extraordinary when
                analysed and seen from this perspective. We could even
                discuss the
                phenomenon of multilocation. However both phenomena
                would demand of
                “i”s a significant autonomy enabling them to act
                separately and
                independently. It is not so sure whether the autonomy of
                such range
                might be possible. Could the cube's faces and the cube
                be separated
                without annihilating the cube itself? There
                  are quite a lot of people who think, who are
                  convinced, they have
                  been transformed and now they are someone else than
                  they were before,
                  so any document issued before the transformation
                  certifies the
                  identity of someone else and that is why there is a
                  need to have a
                  new document issued after the transformation. Surely,
                  there are
                  various kinds of transformations, some of them are
                  complete and
                  total, while the others are but partial and then
                  somebody transformed
                  partially is somebody else only partially and
                  partially the same as
                  was before. Well, but is a complete and total
                transformation
                possible? A butterfly is something really different than
                a
                caterpillar, however both are made of the same material.
                It looks
                like making a table from an old cupboard – you are
                sitting at the
                table without even the slightest idea it might be a
                cupboard in the
                past while the planks and boards are exactly the same. Not all
                  transformations are abrupt, sudden, unexpected (or
                  expected),
                  violent, spectacular. We keep transforming ourselves
                  all the time.
                  Slowly and steadily. Well, in fact every day we wake
                  up as somebody
                  else than the one who went to bed, however the
                  difference is
                  unnoticeable (or almost unnoticeable – or sometimes
                  it's noticeable
                  easily provided that we still preserved the ability to
                  notice
                  anything). Although it is very very difficult to
                  distinguish
                  yesterday-me from today-me, it is not that hard to
                  distinguish
                  last-year-me from last-week-me ..... Although it is so
                  easy to
                  distinguish remote-past-me from present-me, it's
                  really a problem to
                  recognize remote-past-me as present-me, as myself. I'm
                  afraid we
                  usually pretend we recognize ourselves while in fact
                  we are deeply
                  astonished and upset and confused when somebody is
                  trying to convince
                  us the strange looking guy in the picture is identical
                  with the not
                  strange looking guy holding the picture. We are
                  pondering how we
                  could do things so bizarre – undoubtedly we wouldn't
                  do such things
                  now. Let's think about some legislative and
                forensic consequences. For example: a
                lawyer could maintain, quite legitimately and with good
                reasons, that
                the one who committed the crime is somebody else than
                (not identical
                with) the one in the dock. For example: if someone wrote
                the last
                will ten years before his death the one indicated as a
                heir to his
                wealth does not exist now – the one who exists now and
                who maintains
                that he is the one indicated as a heir to this wealth
                can be so
                different than the one mentioned in the last will (for
                example: he
                could experienced a great transformation...) that most
                probably the
                deceased would have never bequeathed him his treasure,
                not even a
                tiny part of it. The examples can be multiplied almost
                endlessly, but
                I think everybody can do this himself or herself or
                itself, certainly if he or she or it finds such examples
                amusing – more
                likely they will be quite gloomy and giving no fun, so
                it will be
                just a waste of time. The time spared in that way could
                be used for
                solving another dilemma: can a butterfly be charged with
                caterpillar's deeds? The
                  conclusion is that one should have not one
                  document but a big suitcase of documents. A trunk of
                  scraps. Shelves
                  of sheets. Should bring here whole huge library. Files
                  and archives
                  exploding with certificates, application forms,
                  contracts and
                  diplomas. Caravans meandering endlessly. Columns of
                  carriers winding
                  and winding and winding up to the horizon..... These
                  documents will
                  need authentications – certificates certifying that
                  the
                  certifications are genuine. However these certificates
                  will also need
                  authentication. We need to be vigilant – a forgery can
                  happen
                  everywhere and at any time..... Well, but if someone
                  was disgusted
                  with endless gathering piles of useless scraps, one
                  could produce those
                  needed and necessary documents and certificates by
                  oneself. Such
                  documents and certificates will be genuine with no
                  doubt and no
                  forgery could happen. Such documents and certificates
                  would tell
                  quite a lot about the state of mind of their producer.
                  A handmade
                  passport would be with no doubt more interesting than
                  a passport
                  printed in millions of copies and distinguishable form
                  all other
                  copies only with a photo – but this is sort of truth
                  in the case of
                  us: we are not so distinguishable from each other as
                  we think and
                  expect ...... Anyway, please do not expect either,
                  there's any
                  downloadable template
                  here. You are not that lazy if you have reached this
                  very place.