History obliterates, conceals, distorts and forgets. 
This is due to contingency, oversight, necessity or intention.

Destruction leaves signs, and what is distorted keeps the memory of an initial state.
Through history, asphalt illustrates these destructions and preservations.

In the guise of an asphalt waterproof discus, this is material  to Memory Pucks.

Memory Pucks supposes that each asphalt, puck  conceals a piece of information.
They stem from all periods of time and are apt to  replenish the lacks that prevent the completion of a common memory.