Network Information

UMA Contract Addresses	Chain ID	Fully Permissionless Settlement	Bot Support	DVM Support	oSnap Support	Oracle UI
Ethereum Mainnet	1	Yes	Yes	Yes	Yes	Yes
Ethereum Sepolia	11155111	Yes	No	Yes	Yes	Yes
Polygon Mainnet	137	Yes	Yes	Yes	Yes	Yes
Polygon Mumbai	80001	Yes	No	Yes	Yes	Yes
Polygon Amoy	80002	Yes	No	Yes	Yes	Yes
Optimism Mainnet	10	Yes	Yes	Yes	Yes	Yes
Arbitrum Mainnet	42161	Yes	Yes	Yes	Yes	Yes
Arbitrum Rinkeby	421611	Yes	No	Yes	No	No
Gnosis Chain Mainnet	100	Multi-sig relay	No	Yes	Yes	No
Avalanche C-Chain	43114	Multi-sig relay	No	Yes	No	No
Base Mainnet	8453	Yes	Yes	Yes	Yes	Yes
Base Sepolia	84532	Yes	No	Yes	No	No
Blast Mainnet	81457	Yes	Yes	Yes	No	Yes
Blast Sepolia	168587773	Yes	No	Yes	No	No
Core Mainnet	1116	Multi-sig relay	Yes	Yes	Yes	Yes
Story Mainnet	1514	Multi-sig relay	Yes	Yes	No	Yes
Story Odyssey	1516	Yes	No	Yes	No	Yes
Boba Mainnet (Deprecated)	288	Yes	No	No	No	No
Ethereum Kovan (Deprecated)	42	n/a	n/a	No	No	No
Ethereum Rinkeby (Deprecated)	4	n/a	n/a	No	No	No
Ethereum Göerli (Deprecated)	5	Yes	Yes	Yes	No	Yes

UMA's data verification mechanism (DVM), which is used to resolve disputes, is on Ethereum mainnet. Where possible, UMA uses a chain's native messaging bridge to relay dispute and governance information between that chain and Ethereum.

On chains where no such native messaging bridge exists, UMA uses a multi-sig controlled by UMA core engineers at Risk Labs to relay disputes to the DVM, to return data from the DVM to requesters on that chain, and to execute governance actions (for instance, adding new identifiers).

UMA is researching decentralized cross-chain messaging systems to make these chains fully permissionless.

Anyone can propose and dispute on any chain, and run bots to monitor contracts or propose and dispute automatically. For convenience, Risk Labs runs monitoring bots connected to UMA Discord channels, as well as proposer and disputer bots, on chains that secure significant value.

If you plan to launch on a chain not currently supported by the bots, we recommend you contact Risk Labs to add bot support, which will make it easier for third-party proposers and disputers to monitor your contracts. We also recommend running your own bots to provide additional resiliency.