From 2e5777aaf090d85e2bac65d0ac6ce9f14349ed00 Mon Sep 17 00:00:00 2001
From: Nicolas MASSART <NicolasMassart@users.noreply.github.com>
Date: Sat, 15 May 2021 00:51:34 +0200
Subject: [PATCH] add debug state root method (#88)

---
 common                           |  2 +-
 docs/Reference/APIs/DebugAPIs.md | 43 ++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/common b/common
index b1dc6c9c..ec95f1d9 160000
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit b1dc6c9c7d8de71ca6b3ef28c33d3da9e1f0a3a7
+Subproject commit ec95f1d9b0fe483f3885164d750541e2404cad25
diff --git a/docs/Reference/APIs/DebugAPIs.md b/docs/Reference/APIs/DebugAPIs.md
index 0057f10a..eace6577 100644
--- a/docs/Reference/APIs/DebugAPIs.md
+++ b/docs/Reference/APIs/DebugAPIs.md
@@ -45,3 +45,46 @@ Retrieves the state of an address at a given block.
           }
         }
         ```
+
+### `debug_privateStateRoot`
+
+Returns the private state root hash at the specified block height.
+
+#### Parameters
+
+* `blockNumber`: Integer representing a block number or one of the string tags `latest` (the last block mined) or `pending`
+  (the last block mined plus pending transactions).
+
+#### Returns
+
+* private state root hash at the specified block height
+
+!!! Example
+
+    === "JSON RPC"
+
+        ```bash
+        curl -X POST http://localhost:8545 --data '{"jsonrpc":"2.0","method":"debug_privateStateRoot","params":["latest"],"id":1}' --header "Content-Type: application/json"
+        ```
+
+    === "JSON result"
+
+        ```json
+        {
+          "jsonrpc":"2.0",
+          "id":1,
+          "result": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
+        }
+        ```
+
+    === "geth console command"
+
+        ```js
+        > debug.privateStateRoot("latest")
+        ```
+
+    === "geth console result"
+
+        ```js
+        "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
+        ```