Blitkin are dynamic pixel pieces inscribed on the bitcoin blockchain and scrambled on Ethereum.
https://ordinals.com/content/02b9dbad46de163f1d42e53b84529de756914a927d203945e66b9a6c2507d9c7i0?fill1=%2323079c&fill2=%23eacc3f&fill3=%236be157&fill4=%23339355
