diff --git a/codex/merkletree/codex/codex.nim b/codex/merkletree/codex/codex.nim
index b35de0b2..b0892dda 100644
--- a/codex/merkletree/codex/codex.nim
+++ b/codex/merkletree/codex/codex.nim
@@ -43,6 +43,8 @@ type
   ByteTree* = MerkleTree[ByteHash, ByteTreeKey]
   ByteProof* = MerkleProof[ByteHash, ByteTreeKey]
 
+  CodexTreeTask* = MerkleTask[ByteHash, ByteTreeKey]
+
   CodexTree* = ref object of ByteTree
     mcodec*: MultiCodec
 
@@ -162,8 +164,11 @@ func init*(
   self.layers = ?merkleTreeWorker(self, leaves, isBottomLayer = true)
   success self
 
-proc initCodexTreeAsync*(
-    tp: Taskpool, mcodec: MultiCodec = Sha256HashCodec, leaves: seq[ByteHash]
+proc init*(
+    _: type CodexTree,
+    tp: Taskpool,
+    mcodec: MultiCodec = Sha256HashCodec,
+    leaves: seq[ByteHash],
 ): Future[?!CodexTree] {.async: (raises: [CancelledError]).} =
   if leaves.len == 0:
     return failure "Empty leaves"
@@ -177,26 +182,23 @@ proc initCodexTreeAsync*(
   if mhash.size != leaves[0].len:
     return failure "Invalid hash length"
 
-  without threadPtr =? ThreadSignalPtr.new():
+  without signal =? ThreadSignalPtr.new():
     return failure("Unable to create thread signal")
 
   defer:
-    threadPtr.close().expect("closing once works")
+    signal.close().expect("closing once works")
 
   var tree = CodexTree(compress: compressor, zero: Zero, mcodec: mcodec)
 
-  var task = MerkleTask[ByteHash, ByteTreeKey](
-    tree: cast[ptr MerkleTree[ByteHash, ByteTreeKey]](addr tree),
-    leaves: @leaves,
-    signal: threadPtr,
-  )
+  var task =
+    CodexTreeTask(tree: cast[ptr ByteTree](addr tree), leaves: @leaves, signal: signal)
 
   doAssert tp.numThreads > 1,
     "Must have at least one separate thread or signal will never be fired"
 
-  tp.spawn asyncMerkleTreeWorker(addr task)
+  tp.spawn merkleTreeWorker(addr task)
 
-  let threadFut = threadPtr.wait()
+  let threadFut = signal.wait()
 
   if err =? catch(await threadFut.join()).errorOption:
     ?catch(await noCancel threadFut)
@@ -213,9 +215,7 @@ proc initCodexTreeAsync*(
 
   success tree
 
-proc init*(
-    _: type CodexTree, tp: Taskpool, leaves: openArray[MultiHash]
-): Future[?!CodexTree] =
+func init*(_: type CodexTree, leaves: openArray[MultiHash]): ?!CodexTree =
   if leaves.len == 0:
     return failure "Empty leaves"
 
@@ -223,19 +223,19 @@ proc init*(
     mcodec = leaves[0].mcodec
     leaves = leaves.mapIt(it.digestBytes)
 
-  return initCodexTreeAsync(tp, mcodec, leaves)
+  CodexTree.init(mcodec, leaves)
 
 proc init*(
-    _: type CodexTree, tp: Taskpool, leaves: seq[Cid]
-): Future[?!CodexTree] {.async.} =
+    _: type CodexTree, tp: Taskpool, leaves: seq[MultiHash]
+): Future[?!CodexTree] {.async: (raises: [CancelledError]).} =
   if leaves.len == 0:
-    return failure("Empty leaves")
+    return failure "Empty leaves"
 
   let
-    mcodec = (?leaves[0].mhash.mapFailure).mcodec
-    leaves = leaves.mapIt((?it.mhash.mapFailure).digestBytes)
+    mcodec = leaves[0].mcodec
+    leaves = leaves.mapIt(it.digestBytes)
 
-  ?catch(await initCodexTreeAsync(tp, mcodec, leaves))
+  await CodexTree.init(tp, mcodec, leaves)
 
 func init*(_: type CodexTree, leaves: openArray[Cid]): ?!CodexTree =
   if leaves.len == 0:
@@ -247,6 +247,18 @@ func init*(_: type CodexTree, leaves: openArray[Cid]): ?!CodexTree =
 
   CodexTree.init(mcodec, leaves)
 
+proc init*(
+    _: type CodexTree, tp: Taskpool, leaves: seq[Cid]
+): Future[?!CodexTree] {.async: (raises: [CancelledError]).} =
+  if leaves.len == 0:
+    return failure("Empty leaves")
+
+  let
+    mcodec = (?leaves[0].mhash.mapFailure).mcodec
+    leaves = leaves.mapIt((?it.mhash.mapFailure).digestBytes)
+
+  await CodexTree.init(tp, mcodec, leaves)
+
 proc fromNodes*(
     _: type CodexTree,
     mcodec: MultiCodec = Sha256HashCodec,
diff --git a/codex/merkletree/merkletree.nim b/codex/merkletree/merkletree.nim
index 1b420863..c973a7e1 100644
--- a/codex/merkletree/merkletree.nim
+++ b/codex/merkletree/merkletree.nim
@@ -161,7 +161,7 @@ func merkleTreeWorker*[H, K](
 
   success @[@xs] & ?self.merkleTreeWorker(ys, isBottomLayer = false)
 
-proc asyncMerkleTreeWorker*[H, K](task: ptr MerkleTask[H, K]) {.gcsafe.} =
+proc merkleTreeWorker*[H, K](task: ptr MerkleTask[H, K]) {.gcsafe.} =
   defer:
     discard task[].signal.fireSync()
 
diff --git a/codex/merkletree/poseidon2.nim b/codex/merkletree/poseidon2.nim
index 56ad1e4d..0b6fdd77 100644
--- a/codex/merkletree/poseidon2.nim
+++ b/codex/merkletree/poseidon2.nim
@@ -9,9 +9,11 @@
 
 {.push raises: [].}
 
-import std/sequtils
+import std/[sequtils, atomics]
 
 import pkg/poseidon2
+import pkg/taskpools
+import pkg/chronos/threadsync
 import pkg/constantine/math/io/io_fields
 import pkg/constantine/platforms/abstractions
 import pkg/questionable/results
@@ -44,6 +46,8 @@ type
   Poseidon2Tree* = MerkleTree[Poseidon2Hash, PoseidonKeysEnum]
   Poseidon2Proof* = MerkleProof[Poseidon2Hash, PoseidonKeysEnum]
 
+  Poseidon2TreeTask* = MerkleTask[Poseidon2Hash, PoseidonKeysEnum]
+
 proc `$`*(self: Poseidon2Tree): string =
   let root = if self.root.isOk: self.root.get.toHex else: "none"
   "Poseidon2Tree(" & " root: " & root & ", leavesCount: " & $self.leavesCount &
@@ -77,9 +81,58 @@ func init*(_: type Poseidon2Tree, leaves: openArray[Poseidon2Hash]): ?!Poseidon2
   self.layers = ?merkleTreeWorker(self, leaves, isBottomLayer = true)
   success self
 
+proc init*(
+    _: type Poseidon2Tree, tp: Taskpool, leaves: seq[Poseidon2Hash]
+): Future[?!Poseidon2Tree] {.async: (raises: [CancelledError]).} =
+  if leaves.len == 0:
+    return failure "Empty leaves"
+
+  let compressor = proc(
+      x, y: Poseidon2Hash, key: PoseidonKeysEnum
+  ): ?!Poseidon2Hash {.noSideEffect.} =
+    success compress(x, y, key.toKey)
+
+  without signal =? ThreadSignalPtr.new():
+    return failure("Unable to create thread signal")
+
+  defer:
+    signal.close().expect("closing once works")
+
+  var tree = Poseidon2Tree(compress: compressor, zero: Poseidon2Zero)
+  var task = Poseidon2TreeTask(
+    tree: cast[ptr Poseidon2Tree](addr tree), leaves: @leaves, signal: signal
+  )
+
+  doAssert tp.numThreads > 1,
+    "Must have at least one separate thread or signal will never be fired"
+
+  tp.spawn merkleTreeWorker(addr task)
+
+  let threadFut = signal.wait()
+
+  if err =? catch(await threadFut.join()).errorOption:
+    ?catch(await noCancel threadFut)
+    if err of CancelledError:
+      raise (ref CancelledError) err
+
+  if not task.success.load():
+    return failure("merkle tree task failed")
+
+  defer:
+    task.layers = default(Isolated[seq[seq[Poseidon2Hash]]])
+
+  tree.layers = task.layers.extract
+
+  success tree
+
 func init*(_: type Poseidon2Tree, leaves: openArray[array[31, byte]]): ?!Poseidon2Tree =
   Poseidon2Tree.init(leaves.mapIt(Poseidon2Hash.fromBytes(it)))
 
+proc init*(
+    _: type Poseidon2Tree, tp: Taskpool, leaves: seq[array[31, byte]]
+): Future[?!Poseidon2Tree] {.async: (raises: [CancelledError]).} =
+  await Poseidon2Tree.init(tp, leaves.mapIt(Poseidon2Hash.fromBytes(it)))
+
 proc fromNodes*(
     _: type Poseidon2Tree, nodes: openArray[Poseidon2Hash], nleaves: int
 ): ?!Poseidon2Tree =
diff --git a/tests/codex/merkletree/testasynctree.nim b/tests/codex/merkletree/testasynctree.nim
deleted file mode 100644
index 604663df..00000000
--- a/tests/codex/merkletree/testasynctree.nim
+++ /dev/null
@@ -1,51 +0,0 @@
-import std/sequtils
-
-import pkg/questionable/results
-import pkg/stew/byteutils
-import pkg/libp2p
-import pkg/taskpools
-import pkg/chronos
-
-import pkg/asynctest/chronos/unittest2
-
-export unittest2
-
-import pkg/codex/codextypes
-import pkg/codex/merkletree
-import pkg/codex/utils/digest
-
-import ./helpers
-
-# TODO: Generalize to other hashes
-
-const
-  data = [
-    "00000000000000000000000000000001".toBytes,
-    "00000000000000000000000000000002".toBytes,
-    "00000000000000000000000000000003".toBytes,
-    "00000000000000000000000000000004".toBytes,
-    "00000000000000000000000000000005".toBytes,
-    "00000000000000000000000000000006".toBytes,
-    "00000000000000000000000000000007".toBytes,
-    "00000000000000000000000000000008".toBytes,
-    "00000000000000000000000000000009".toBytes,
-    "00000000000000000000000000000010".toBytes,
-  ]
-  sha256 = Sha256HashCodec
-
-suite "Test CodexTree":
-  var taskpool: Taskpool
-
-  setup:
-    taskpool = Taskpool.new()
-
-  teardown:
-    taskpool.shutdown()
-
-  test "Should build tree from multihash leaves asyncronosly":
-    var t = await CodexTree.init(taskpool, sha256, leaves = data)
-    var tree = t.tryGet()
-    check:
-      tree.isOk
-      tree.get().leaves == data
-      tree.get().mcodec == sha256
diff --git a/tests/codex/merkletree/testcodextree.nim b/tests/codex/merkletree/testcodextree.nim
index 29390c16..e8cc537a 100644
--- a/tests/codex/merkletree/testcodextree.nim
+++ b/tests/codex/merkletree/testcodextree.nim
@@ -1,6 +1,5 @@
 import std/sequtils
 
-import pkg/unittest2
 import pkg/questionable/results
 import pkg/stew/byteutils
 import pkg/libp2p
@@ -9,8 +8,11 @@ import pkg/codex/codextypes
 import pkg/codex/merkletree
 import pkg/codex/utils/digest
 
+import pkg/taskpools
+
 import ./helpers
 import ./generictreetests
+import ../../asynctest
 
 # TODO: Generalize to other hashes
 
@@ -43,9 +45,22 @@ suite "Test CodexTree":
       CodexTree.init(sha256, leaves = newSeq[ByteHash]()).isErr
 
   test "Should build tree from multihash leaves":
-    var expectedLeaves = data.mapIt(MultiHash.digest($sha256, it).tryGet())
+    var
+      expectedLeaves = data.mapIt(MultiHash.digest($sha256, it).tryGet())
+      tree = CodexTree.init(leaves = expectedLeaves)
+    check:
+      tree.isOk
+      tree.get().leaves == expectedLeaves.mapIt(it.digestBytes)
+      tree.get().mcodec == sha256
 
-    var tree = CodexTree.init(leaves = expectedLeaves)
+  test "Should build tree from multihash leaves asynchronously":
+    var tp = Taskpool.new(numThreads = 2)
+    defer:
+      tp.shutdown()
+
+    let expectedLeaves = data.mapIt(MultiHash.digest($sha256, it).tryGet())
+
+    let tree = (await CodexTree.init(tp, leaves = expectedLeaves))
     check:
       tree.isOk
       tree.get().leaves == expectedLeaves.mapIt(it.digestBytes)
@@ -63,6 +78,22 @@ suite "Test CodexTree":
       tree.get().leaves == expectedLeaves.mapIt(it.mhash.tryGet.digestBytes)
       tree.get().mcodec == sha256
 
+  test "Should build tree from cid leaves asynchronously":
+    var tp = Taskpool.new(numThreads = 2)
+    defer:
+      tp.shutdown()
+
+    let expectedLeaves = data.mapIt(
+      Cid.init(CidVersion.CIDv1, BlockCodec, MultiHash.digest($sha256, it).tryGet).tryGet
+    )
+
+    let tree = (await CodexTree.init(tp, leaves = expectedLeaves))
+
+    check:
+      tree.isOk
+      tree.get().leaves == expectedLeaves.mapIt(it.mhash.tryGet.digestBytes)
+      tree.get().mcodec == sha256
+
   test "Should build from raw digestbytes (should not hash leaves)":
     let tree = CodexTree.init(sha256, leaves = data).tryGet
 
@@ -70,6 +101,18 @@ suite "Test CodexTree":
       tree.mcodec == sha256
       tree.leaves == data
 
+  test "Should build from raw digestbytes (should not hash leaves) asynchronously":
+    var tp = Taskpool.new(numThreads = 2)
+    defer:
+      tp.shutdown()
+
+    let tree = (await CodexTree.init(tp, sha256, leaves = @data))
+
+    check:
+      tree.isOk
+      tree.get().mcodec == sha256
+      tree.get().leaves == data
+
   test "Should build from nodes":
     let
       tree = CodexTree.init(sha256, leaves = data).tryGet
diff --git a/tests/codex/merkletree/testposeidon2tree.nim b/tests/codex/merkletree/testposeidon2tree.nim
index e12751b7..0a3e48ac 100644
--- a/tests/codex/merkletree/testposeidon2tree.nim
+++ b/tests/codex/merkletree/testposeidon2tree.nim
@@ -1,6 +1,5 @@
 import std/sequtils
 
-import pkg/unittest2
 import pkg/poseidon2
 import pkg/poseidon2/io
 import pkg/questionable/results
@@ -9,9 +8,11 @@ import pkg/stew/byteutils
 import pkg/stew/arrayops
 
 import pkg/codex/merkletree
+import pkg/taskpools
 
 import ./generictreetests
 import ./helpers
+import ../../asynctest
 
 const data = [
   "0000000000000000000000000000001".toBytes,
@@ -36,13 +37,14 @@ suite "Test Poseidon2Tree":
     check:
       Poseidon2Tree.init(leaves = newSeq[Poseidon2Hash](0)).isErr
 
-  test "Init tree from poseidon2 leaves":
-    let tree = Poseidon2Tree.init(leaves = expectedLeaves).tryGet
+  test "Build tree from poseidon2 leaves":
+    var taskpool = Taskpool.new(numThreads = 2)
+    let tree = (await Poseidon2Tree.init(taskpool, leaves = expectedLeaves)).tryGet()
 
     check:
       tree.leaves == expectedLeaves
 
-  test "Init tree from byte leaves":
+  test "Build tree from byte leaves":
     let tree = Poseidon2Tree.init(
       leaves = expectedLeaves.mapIt(array[31, byte].initCopyFrom(it.toBytes))
     ).tryGet
@@ -50,7 +52,7 @@ suite "Test Poseidon2Tree":
     check:
       tree.leaves == expectedLeaves
 
-  test "Should build from nodes":
+  test "Build tree from nodes":
     let
       tree = Poseidon2Tree.init(leaves = expectedLeaves).tryGet
       fromNodes = Poseidon2Tree.fromNodes(
@@ -60,6 +62,30 @@ suite "Test Poseidon2Tree":
     check:
       tree == fromNodes
 
+  test "Build poseidon2 tree from poseidon2 leaves asynchronously":
+    var tp = Taskpool.new(numThreads = 2)
+    defer:
+      tp.shutdown()
+
+    let tree = (await Poseidon2Tree.init(tp, leaves = expectedLeaves)).tryGet()
+
+    check:
+      tree.leaves == expectedLeaves
+
+  test "Build poseidon2 tree from byte leaves asynchronously":
+    var tp = Taskpool.new(numThreads = 2)
+    defer:
+      tp.shutdown()
+
+    let tree = (
+      await Poseidon2Tree.init(
+        tp, leaves = expectedLeaves.mapIt(array[31, byte].initCopyFrom(it.toBytes))
+      )
+    ).tryGet()
+
+    check:
+      tree.leaves == expectedLeaves
+
 let
   compressor = proc(
       x, y: Poseidon2Hash, key: PoseidonKeysEnum