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+# Type 1 Pessimistic Proof Detailed Instructions
+
+## Overview
+- Polygon Phase 2 project upgrades cdk-erigon to add:
+    - PMT state commitment
+    - EIP support up to and including Pectra
+
+With these changes come some new configruation options.
+
+## Configuration
+Configuration remains the same as other modes of operation, with the addition of:
+
+- 2 new flags:
+    - `zkevm.honour-chainspec: true` - Read and utilise the chainspec values for previously unsupported forks
+    - `zkevm.initial-commitment: pmt` - Enable Patricia Merkle Trie state commitment (instead of SMT)
+- 2 new chainspec property:
+    - `"normalcyBlock": 0` - Enable 'normalcy' from block zero - use standard (non-type2) EVM
+    - `"debugDisableZkevmStateChanges": true` - Debug flag to turn off injected batch and GER sync from L1 (Sequencer)
+
+## Examples
+
+
+## Integration Guide
+
+
+## Troubleshooting