i don't know the value of keeping a record among billions of us, sometimes i think 
it is just for me and when i think that i get sad, i don't want it to be like that, i don't want notoriety, i just want continuity with living things. that sounds vaguely grand but it isn't, i want to keep a simple record someone can see in their own and common continuity. 
any tool between the hand and the eye could do. we are passing photons, around the planet, into space.