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This page lists the wstO vault contracts and the O bridge contracts on Base and Robinhood Chain. Vault state was verified onchain on October 8, 2026; see Onchain readback. A machine-readable copy is available in wsto-deployments.json.
Always confirm the chain ID before signing. The same address can be a different contract on another network. For example, 0x500A02a20B0B0A3F3efCCFc0559543F5743bd1C4 is O on Robinhood Chain, but on Base it belongs to a different bridge.

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Base mainnet

Chain ID 8453. View the network on Basescan.

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Robinhood Chain

Chain ID 4663. View the network on Blockscout. On Robinhood Chain, the O token contract is also the bridge contract: it mints O when a transfer arrives from Base and burns it when O leaves.

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Vault parameters

These values are fixed at creation and cannot change. wstO uses the same decimals as O. Its EIP-712 permit domain is Wrapped Staked O, version 1, with the chain ID and vault address of each network.

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Onchain readback

Read-only checks on October 8, 2026: Deposit status, the Guardian, the Timelock’s delay and roles, and the bridge switches can change after this date. Read them onchain before relying on them.