zkSync
tl; dr
- layer-2 scaling solution for ethereum, aiming for scalability.
- zkSync 2 is called Era, zkSync 1 is called light.
- uses "optimistic" transfers, which allow users to send and receive txs without waiting for conformation (reducing tx times, and allowing higher tx throughput).
- tvl: zkSync era has higher transfers of assets ($125M) than Polygon zkEVM ($2.57M)
- sybil addresses: zkSync era has more potential sybil addresses based on the depositing addresses’ wallet age and usage on Ethereum/Layer 2 networks.
- tx costs: ~$0.25-$2, high compared to optimistic rollups like arbitrum and Ootimism ($0.13 - $0.45)
zksync era
- zksync era archtecture:
- native account abstraction (any account on era can pay fees in any tokens or even transact with zero fees on protocols willing to subsidize usage)
- powerful llvm compiler
- data compression (publishing states diffs instead of tx inputs, enabling data compression, more frequent oracle updates, cheap privacy, seamless off-chain sotrage extension)
- hyperscalability