An essential part of Abstract as a ZK rollup is the smart contracts deployed to Ethereum (L1) that store and verify information about the state of the L2.

By having these smart contracts deployed and performing these essential roles on the L1, Abstract inherits the security properties of Ethereum.

These smart contracts work together to:

  • Store the state diffs and compressed contract bytecode published from the L2 using blobs.
  • Receive and verify the validity proofs posted by the L2.
  • Facilitate communication between L1 and L2 to enable cross-chain messaging and bridging.

View all L1 Rollup Contracts

View the full list of smart contracts deployed on L1 that Abstract uses on the ZK stack documentation.

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List of L1 Rollup Contracts

Below is a list of the smart contracts deployed on L1 (Sepolia) that Abstract uses.

ContractAddress
Governance0x15d049e3d24fbcd53129bf7781a0c6a506690ff2
ERC20 bridge0x2ae09702f77a4940621572fbcdae2382d44a2cba
Shared bridge L1 (1)0x3e8b2fe58675126ed30d0d12dea2a9bda72d18ae
Shared bridge L1 (2)0xec089e40c40b12dd4577e0c5381d877b613040ec
Bridge Hub Proxy0x35a54c8c757806eb6820629bc82d90e056394c92
State Transition Proxy0x4e39e90746a9ee410a8ce173c7b96d3afed444a5
Transparent Proxy Admin0x0358baca94dcd7931b7ba7aaf8a5ac6090e143a5
Validator Timelock0xd3876643180a79d0a56d0900c060528395f34453

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Prover & VerifierOverview