Ethereum Layer-2 solutions primary techniques: $STRK $METIS $MATIC

1. ZK Roll-ups:

- Utilizes zero-knowledge proofs to bundle multiple transactions into a single batch.

2. Validium:

- Similar to ZK Roll-ups but stores data off-chain to enhance scalability.

3. Optimistic Roll-ups:

- Assumes transactions are valid by default and uses fraud proofs for validation.

4. State Channels:

- Allows participants to transact off-chain, only recording the final state on-chain.

5. Plasma:

- Uses child chains to process transactions off-chain with periodic commitments to the main chain.

6. Sidechains:

- Independent blockchains running in parallel to the Ethereum main chain, connected via a two-way peg.

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