From 301e546aa99d3aba607fd3026c3e30c240b5cb86 Mon Sep 17 00:00:00 2001
From: Nicholas Dudfield <ndudfield@gmail.com>
Date: Thu, 18 Jun 2026 10:42:28 +0700
Subject: [PATCH] chore(rng): assert active view source at round start

---
 src/xrpld/app/consensus/ConsensusExtensions.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/xrpld/app/consensus/ConsensusExtensions.cpp b/src/xrpld/app/consensus/ConsensusExtensions.cpp
index 4c0ef3415..cd6015d29 100644
--- a/src/xrpld/app/consensus/ConsensusExtensions.cpp
+++ b/src/xrpld/app/consensus/ConsensusExtensions.cpp
@@ -2146,6 +2146,14 @@ ConsensusExtensions::onRoundStart(
     clearRngState();
     roundPrevLedgerHash_ = prevLedger.ledger_->info().hash;
     cacheUNLReport(prevLedger.ledger_);
+    auto const validatorView = activeValidatorView();
+    if (validatorView->sourceLedgerHash)
+    {
+        XRPL_ASSERT(
+            *validatorView->sourceLedgerHash == roundPrevLedgerHash_,
+            "ripple::ConsensusExtensions::onRoundStart : "
+            "active view source matches round parent");
+    }
     setExpectedProposers(std::move(lastProposers));
     resetSubState();
 }