𝗘𝘁𝗵𝗲𝗿𝗲𝘂𝗺 𝗦𝗰𝗮𝗹𝗶𝗻𝗴 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀: ✅

1. ZK Roll-ups:

- zkSync $ZK

- Starknet $STRK

- Loopring

- Scroll

2. Validium:

- StarkEx

- Immutable X

3. Optimistic Roll-ups:

- Optimism $OP

- Arbitrum

4. State Channels:

- Raiden Network

- Celer Network

5. Plasma:

- OMG Network

- Polygon

6. Sidechains:

- Polygon

- xDai

- Skale