Context

PR #20533 added a test suite validating debug_executionWitness against 93 EIP-8025 fixtures from ethereum/execution-spec-tests zkevm@v0.3.3. All 93 fixtures run but are marked as expected failures due to mismatches between Erigon's witness output and the reference.

Root causes to fix

1. State node ordering (52% of tests) — Erigon emits MPT state nodes in a different order than the spec expects
2. Extra state nodes (48% of tests) — Erigon includes nodes beyond what the spec requires (superset)
3. Codes ordering (99% of tests) — Erigon sorts bytecodes by keccak256 hash; spec expects access-order
4. Missing parent block headers (99% of tests) — Erigon does not include parent headers in the witness

Location

All fixes are in rpc/jsonrpc/debug_execution_witness.go and surrounding witness generation code.

Done when

• All 93 fixtures pass without bt.Fails(".") annotation
• bt.Fails line removed from execution/tests/eest_zkevm_witness/witness_test.go

Related

• Builds on commitment: execution witnesses - add new test suite #20442
• Test suite: go test -v -run TestExecutionSpecWitness -count=1 ./execution/tests/eest_zkevm_witness/...