ZK-Sync

Overview of how Abstract is using ZK-sync

The core idea behind a rollup is to move computation from one blockchain (such as Ethereum) onto another blockchain (the rollup) which can process transactions quicker.

TXs flow between L1 and L2 (source: https://x.com/0xCygaar/status/1825604170671669442)

Abstract is a zk rollup which means it uses "validity proofs" to prove to Ethereum L1 that a state transition happened on the L2. Verifying the validity of a proof is much cheaper than re-executing every L2 transaction on L1, which is why zk rollups are magnitudes cheaper than L1s.

Settlement process between L1 and L2 (source: https://x.com/0xCygaar/status/1825604352092025119)

Finally, Abstract is built using ZK stack. ZK stack is the latest version of zkSync technology which includes a complete zk rollup system, a sequencer, token bridges, fraud proofs, and more.

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Sources

https://docs.abs.xyz/ https://x.com/AbstractChain/status/1815771630649356546 https://x.com/0xCygaar/status/1825603946939035735