rich1.0LAPIN (npub16c…7g5nc)https://yabu.me/npub16c8vg7eupkc5dw4k24pwqrxzkjunx00k3egm8axx2tc8k7slm9kq37g5ncnjumphttps://yabu.meHey, I saw these in Prague. Nice idea! Is the 21M on the surface of the cube?(as opposed to contained within its volume?)