diff --git a/codex/slots/proofs/backends/asynccircoms.nim b/codex/slots/proofs/backends/asynccircoms.nim
index 5a008b5d..b63fad5a 100644
--- a/codex/slots/proofs/backends/asynccircoms.nim
+++ b/codex/slots/proofs/backends/asynccircoms.nim
@@ -50,7 +50,7 @@ proc prove*[H](
   without queue =? newSignalQueue[?!CircomProof](maxItems = 1), qerr:
     return failure(qerr)
 
-  var args = (ref ProverArgs[H])(circom: self.circom, data: input)
+  var args = (ref ProverArgs[H])(circom: self.circom.duplicate(), data: input)
   GC_ref(args)
 
   proc spawnTask() =
@@ -87,7 +87,7 @@ proc verify*[H](
   without queue =? newSignalQueue[?!bool](maxItems = 1), qerr:
     return failure(qerr)
 
-  var args = (ref VerifierArgs[H])(circom: self.circom, proof: proof, inputs: inputs)
+  var args = (ref VerifierArgs[H])(circom: self.circom.duplicate(), proof: proof, inputs: inputs)
   GC_ref(args)
 
   proc spawnTask() =
@@ -116,9 +116,9 @@ proc init*(
   AsyncCircomCompat(circom: circom, tp: tp)
 
 proc duplicate*(
-    self: AsyncCircomCompat, tp: Taskpool
+    self: AsyncCircomCompat
 ): AsyncCircomCompat =
   ## Create a new async circom
   ##
   let circom = self.circom.duplicate()
-  AsyncCircomCompat(circom: circom, tp: tp)
+  AsyncCircomCompat(circom: circom, tp: self.tp)
diff --git a/codex/slots/proofs/backends/circomcompat.nim b/codex/slots/proofs/backends/circomcompat.nim
index 2fee7b35..517e829d 100644
--- a/codex/slots/proofs/backends/circomcompat.nim
+++ b/codex/slots/proofs/backends/circomcompat.nim
@@ -242,6 +242,7 @@ proc duplicate*(
   ## Create a new ctx
   var cfg: ptr CircomBn254Cfg
   if duplicateCircomConfig(self.backendCfg, cfg.addr) != ERR_OK or cfg == nil:
-      if cfg != nil: cfg.addr.releaseCfg()
-      raiseAssert("failed to initialize circom compat config")
+    if cfg != nil:
+      cfg.addr.releaseCfg()
+    raiseAssert("failed to initialize circom compat config")
   CircomCompat(params: self.params, backendCfg: cfg, vkp: self.vkp)
diff --git a/tests/codex/slots/testprover.nim b/tests/codex/slots/testprover.nim
index 0065a246..932d84e8 100644
--- a/tests/codex/slots/testprover.nim
+++ b/tests/codex/slots/testprover.nim
@@ -91,32 +91,32 @@ suite "Test Prover":
 
     let
       taskpool2 = Taskpool.new(num_threads = 2)
-      circomVerifyBackend = circomBackend.duplicate(taskpool2)
+      circomVerifyBackend = circomBackend.duplicate()
       proverVerify = Prover.new(store, circomVerifyBackend, samples)
     check:
       (await proverVerify.verify(proof, inputs)).tryGet == true
 
-  # test "Should sample and prove many slot":
-  #   let
-  #     r1cs = "tests/circuits/fixtures/proof_main.r1cs"
-  #     wasm = "tests/circuits/fixtures/proof_main.wasm"
+  test "Should sample and prove many slot":
+    let
+      r1cs = "tests/circuits/fixtures/proof_main.r1cs"
+      wasm = "tests/circuits/fixtures/proof_main.wasm"
 
-  #     taskpool = Taskpool.new(num_threads = 6)
-  #     params = CircomCompatParams.init(r1cs, wasm)
-  #     circomBackend = AsyncCircomCompat.init(params, taskpool)
-  #     prover = Prover.new(store, circomBackend, samples)
+      taskpool = Taskpool.new(num_threads = 6)
+      params = CircomCompatParams.init(r1cs, wasm)
+      circomBackend = AsyncCircomCompat.init(params, taskpool)
+      prover = Prover.new(store, circomBackend, samples)
 
-  #   var proofs = newSeq[Future[?!(AnyProofInputs, AnyProof)]]()
-  #   for i in 1..50:
-  #     echo "PROVE: ", i
-  #     let
-  #       challenge = (1234567).toF.toBytes.toArray32
+    var proofs = newSeq[Future[?!(AnyProofInputs, AnyProof)]]()
+    for i in 1..50:
+      echo "PROVE: ", i
+      let
+        challenge = (1234567).toF.toBytes.toArray32
 
-  #     proofs.add(prover.prove(1, verifiable, challenge))
+      proofs.add(prover.prove(1, verifiable, challenge))
 
-  #   await allFutures(proofs)
+    await allFutures(proofs)
 
-  #   for pf in proofs:
-  #     let (inputs, proof) = (await pf).tryGet
-  #     check:
-  #         (await prover.verify(proof, inputs)).tryGet == true
+    for pf in proofs:
+      let (inputs, proof) = (await pf).tryGet
+      check:
+          (await prover.verify(proof, inputs)).tryGet == true