To help with clarity and a common understanding, here are some helpful terms and their definitions.
- Superchain Ecosystem member: A chain with an agreement in place to commit sequencer revenue back to the Optimism Collective.
- Blockspace charter: A Blockspace Charter is a technical-focused governing document (and framework) for the Superchain.
- Standard chain: A chain that conforms to the Standard Rollup Charter
- Frontier chain: A non-standard chain that has modifications that do not fit the
Standard Rollup Charter
criteria. - Standard chain candidate: A chain that has met most of the standard chain criteria, except for the
ProxyAdminOwner
key handover. - Key handover: A colloquial term for updating the chain's
ProxyAdminOwner
to fulfill the requirements of the standard rollup charter.
Chains in the superchain-registry are assigned a superchain_level
(shown in individual config files as well as the chainList.toml/json
summaries), depending on the set of validation checks that they pass.
Non-Standard chains have superchain_level = 0
. These are members of the Superchain ecosystem.
Standard Candidate chains have superchain_level = 1
. These are chains who conform to the standard blockchain charter, but haven't handed over their keys yet.
Standard chains have superchain_level = 2
. These chains conform to the standard blockchain charter, and have handed over their keys.