feat(driver): Multi-block derivation #888
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hashcashier
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This PR adds an optional
PipelineCursorinstance intoOracleL2ChainProviderwhich enables the forward movement of the reference L2 block hash used to verifiably query L2 block data by number.Using this cursor in the provider enables providing authenticated data to the pipeline beyond what could previously be validating only using the commitments in
BootInfo.This allows
Driver::advance_to_targetto iteratively process multiple sequential blocks, extending the usability of Kona in ZK fault proofs.The PR also reduces some boilerplate by introducing convenience methods in
HintTypeandOracleL2ChainProvider.Closes #795