### **Dev Update week 10**

This week, I focused on implementing and refining several core components of the Beacon state accessors and Beacon chain state transition function in the Ethereum consensus layer, particularly around block processing and payload verification. However, I wasn’t able to accomplish as much as I’d planned since I was in the process of relocating to a different country. Key tasks included:

- **Block Processing Enhancements:** Integrated a more comprehensive block processing function (`process_block`) that handles the block header, withdrawals, execution payloads, and various operations, all in alignment with EIP-7732 modifications.

- **Withdrawals Handling:** Modified the `process_withdrawals` function to ensure withdrawals are deterministic based solely on the beacon state, improving the execution layer's response to these transactions.

- **Execution Payload Header:** Developed and integrated a new `process_execution_payload_header` function, focusing on verifying signatures and ensuring the builder has sufficient funds for the bid. This function also caches the signed execution payload header for future state transitions.

- **Operations Processing:** Updated the `process_operations` function to include payload attestations, which are critical for verifying attestations related to payloads in the context of the current and previous slots.

- **Payload Verification:** Implemented `verify_execution_payload_header_signature` and `verify_execution_payload_envelope_signature` to ensure that execution payload headers and envelopes are correctly signed and verified, enhancing the security of payload processing.

- **Merge Transition Check:** Modifying the `is_merge_transition_complete` function to incorporate blob KZG commitments, ensuring compatibility with future Ethereum updates.

#### **Challenges:**

- Encountered several issues with type mismatches and object field assignments

#### **Next Steps:**

- Finalize and test the newly implemented signature beacon change spec.