This page describes the historical Whitechain Layer 1 blockchain. It is useful for understanding Whitechain’s history, but does not reflect the current state of the network.
What was migrated
The complete state of the Whitechain L1 was migrated to the new OP Stack L2:
- All account balances (externally owned accounts and contracts)
- All smart contract code and storage slots
- Nonce values for every account
No user action was required. Addresses on L1 map one to one to the same addresses on L2, preserving balances and contract identities.
L1 final state
After the migration cut-over, the Whitechain L1 entered read-only mode. The mainnet RPC at https://rpc.whitechain.io and explorer at https://explorer.whitechain.io remain available for historical queries against L1 state up to the migration block. No new transactions are accepted on L1.
The exact migration block number and timestamp are pending publication. See the main Migration to L2 page for the live values once announced.
What replaced the L1 components
| L1 component | L2 replacement |
|---|
| Clique PoA consensus, single validator operated by WhiteBIT | OP Stack sequencer, initially operated by WhiteBIT |
| Fixed 10 gwei gas price | EIP-1559 with OP Stack parameters |
| 2 second block time | 1 second block time, with Flashblocks at 100 to 200 ms |
| Single-block finality on L1 | Sequencer trust initially, ultimately finalized on Ethereum |
| Third-party bridge to Ethereum | Native OP bridge to Ethereum alongside existing third-party bridges |
| PoA block rewards | Periodic distribution via smart contract |
L1 sunset
The Whitechain L1 will eventually be fully decommissioned. Operators and integrators that rely on the L1 RPC or explorer for historical queries should plan to migrate their reads to the L2 indexer or to a snapshot once the sunset window is announced.
For background on why Whitechain moved to L2 and the broader technical comparison, see Migration to L2.
