A 2D erasure-coded blob drawn as a coordinate map. Move a withheld block and watch reconstruction cascade or collapse; run light-node sampling to see why hiding any data means hiding a quarter of the lattice — and getting caught.
The Sampling Lattice — tap the lattice (or use arrow keys) to move the withheld block · drag the width / height sliders to resize what the producer hides · set samples-per-node and light-node count, then Run sampling · load a preset (1 cell · 3-col strip · 8×8 · 9×9) to jump to key casesopen artifact ↗
EIP-4844 blobs look like cheap on-chain storage, but they vanish in 18 days. Here is why DA windows break AI training pipelines and what to use instead.