diff --git a/trace_decoder/Cargo.toml b/trace_decoder/Cargo.toml
index bcb980852..b56d229e6 100644
--- a/trace_decoder/Cargo.toml
+++ b/trace_decoder/Cargo.toml
@@ -77,3 +77,7 @@ harness = false
 [[test]]
 name = "simulate-execution"
 harness = false
+
+[[test]]
+name = "check-subsets"
+harness = false
diff --git a/trace_decoder/src/lib.rs b/trace_decoder/src/lib.rs
index 88636d877..4a0bdf7b4 100644
--- a/trace_decoder/src/lib.rs
+++ b/trace_decoder/src/lib.rs
@@ -57,6 +57,8 @@ const _DEVELOPER_DOCS: () = ();
 mod interface;
 
 pub use interface::*;
+pub use type1::frontend;
+pub use wire::parse;
 
 mod type1;
 // TODO(0xaatif): https://github.com/0xPolygonZero/zk_evm/issues/275
diff --git a/trace_decoder/tests/check-subsets.rs b/trace_decoder/tests/check-subsets.rs
new file mode 100644
index 000000000..a9dc4b690
--- /dev/null
+++ b/trace_decoder/tests/check-subsets.rs
@@ -0,0 +1,33 @@
+use common::{cases, Case};
+use itertools::Itertools;
+use mpt_trie::partial_trie::PartialTrie;
+use trace_decoder::{BlockTraceTriePreImages, CombinedPreImages};
+
+mod common;
+
+fn main() -> anyhow::Result<()> {
+    for Case { name, trace, .. } in cases().unwrap() {
+        println!("{name}");
+        let BlockTraceTriePreImages::Combined(CombinedPreImages { compact }) =
+            trace.trie_pre_images
+        else {
+            panic!()
+        };
+        let whole = trace_decoder::frontend(trace_decoder::parse(&compact).unwrap())
+            .unwrap()
+            .state
+            .as_hashed_partial_trie()
+            .clone();
+        let all_keys = whole.keys().collect::<Vec<_>>();
+        let len = all_keys.len();
+        for n in 0..len {
+            println!("{n}/{len}");
+            for comb in all_keys.iter().copied().combinations(n) {
+                if let Ok(sub) = mpt_trie::trie_subsets::create_trie_subset(&whole, comb) {
+                    assert_eq!(sub.hash(), whole.hash())
+                }
+            }
+        }
+    }
+    Ok(())
+}