The Entropyseal is a reusable tamper-evident jar to store or ship
sensitive physical goods with peace of mind. It can be easily verified by any
smartphone camera or even low-tech with a Xerox photocopy.

A visual pattern of particles is temporary locked when closing the jar. The image of the fingerprint is captured by a smartphone camera and safely stored for later pattern-match verification.
It is intensely difficult to twist the lid off the jar without mixing the particles.

The jar is designed such that the pearls are mixed actively when twisting open the lid.
The pearls are sitting in 3-4 layers to easily lock tight upon enclosure.

For the geeks, entropy of the physical pattern is highest when an equal amount of white and black particles is visible. If mixing would be perfect, which is not! entropy (in bits) equals almost the amount of visible particles. If 1320 pcs. D=2mm particles are visible, our seal’s entropy is theoretically up to 1314 bits, that is 3.58 x 10^395 possible combinations.

The Entropyseal is a small space of true integrity.