From a30745400707787bb88a75c11d8c2298ba0607d5 Mon Sep 17 00:00:00 2001
From: rudeus33 <76540632+mAsyamJ@users.noreply.github.com>
Date: Mon, 9 Mar 2026 23:35:47 +0700
Subject: [PATCH] Add Polkadot Hub TestNet support to Clearnode sandbox

This PR adds Polkadot Hub TestNet to the sandbox blockchain configuration.

Network details:
- Name: polkadot_hub_testnet
- Chain ID: 420420417
- Environment: sandbox
- RPC: https://services.polkadothub-rpc.com/testnet

This is an EVM-compatible Polkadot test network intended for development and testing.
The balance_checker address is set to a placeholder and can be replaced during integration.
---
 clearnode/chart/config/sandbox/blockchains.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/clearnode/chart/config/sandbox/blockchains.yaml b/clearnode/chart/config/sandbox/blockchains.yaml
index f12aea0de..b907fd60f 100644
--- a/clearnode/chart/config/sandbox/blockchains.yaml
+++ b/clearnode/chart/config/sandbox/blockchains.yaml
@@ -26,3 +26,9 @@ blockchains:
     custody: "0x442f5544983eA73ED75FbDD252bc03842D185284"
     adjudicator: "0xBa28DC8F50d076Df76fF9959f31A320686faa373"
     balance_checker: "0x714698e8fe7896bb84A46c0705944c4a48580819"
+- name: polkadot_hub_testnet
+  id: 420420417
+  contract_addresses:
+    custody: "0x0000000000000000000000000000000000000000"
+    adjudicator: "0x0000000000000000000000000000000000000000"
+    balance_checker: "0x0000000000000000000000000000000000000000"