From e26a3e04b387bf445a6b4119da77630f00ba7683 Mon Sep 17 00:00:00 2001
From: Lucas Saldanha <lucascrsaldanha@gmail.com>
Date: Mon, 12 Aug 2024 10:54:21 +1200
Subject: [PATCH] New execution payload global index

---
 pysetup/spec_builders/electra.py            | 1 +
 specs/electra/light-client/sync-protocol.md | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/pysetup/spec_builders/electra.py b/pysetup/spec_builders/electra.py
index ca02ee927..bc54b0cc0 100644
--- a/pysetup/spec_builders/electra.py
+++ b/pysetup/spec_builders/electra.py
@@ -18,4 +18,5 @@ from eth2spec.deneb import {preset_name} as deneb
             'FINALIZED_ROOT_GINDEX_ELECTRA': 'GeneralizedIndex(169)',
             'CURRENT_SYNC_COMMITTEE_GINDEX_ELECTRA': 'GeneralizedIndex(86)',
             'NEXT_SYNC_COMMITTEE_GINDEX_ELECTRA': 'GeneralizedIndex(87)',
+            'EXECUTION_PAYLOAD_GINDEX': 'GeneralizedIndex(50)',
         }
diff --git a/specs/electra/light-client/sync-protocol.md b/specs/electra/light-client/sync-protocol.md
index ef9dcd598..f304211b2 100644
--- a/specs/electra/light-client/sync-protocol.md
+++ b/specs/electra/light-client/sync-protocol.md
@@ -41,6 +41,10 @@ Additional documents describes the impact of the upgrade on certain roles:
 
 ## Constants
 
+| Name | Value |
+| - | - |
+| `EXECUTION_PAYLOAD_GINDEX` | `get_generalized_index(BeaconBlockBody, 'execution_payload_envelope', 'execution_payload')` (= 50) |
+
 ### Frozen constants
 
 Existing `GeneralizedIndex` constants are frozen at their [Altair](../../altair/light-client/sync-protocol.md#constants) values.