@Plasma Where are Plasma ideas currently being used?

* Polygon (formerly Matic) started with adapted Plasma, then transitioned to a PoS sidechain and zk-Rollups.

* Validium (StarkEx, zkPorter) uses off-chain data storage but applies zk-proofs; it is a hybrid between Plasma and ZK-Rollup.

* Bitcoin-like networks are seeing "Plasma-like" proposals (RGB, Taro) for issuing second-level assets.#plasma $XPL