diff --git a/lib/archethic.ex b/lib/archethic.ex
index b92df3542..f5354a41b 100644
--- a/lib/archethic.ex
+++ b/lib/archethic.ex
@@ -82,7 +82,7 @@ defmodule Archethic do
 
         responses =
           %{already_locked?: already_locked?} =
-          do_send_transaction(tx, validation_nodes, welcome_node_key, contract_context)
+          do_send_transaction(tx, validation_nodes, welcome_node_key, contract_context, ref_timestamp)
 
         maybe_start_resync(responses)
 
@@ -122,7 +122,8 @@ defmodule Archethic do
          tx = %Transaction{type: tx_type},
          validation_nodes,
          welcome_node_key,
-         contract_context
+         contract_context,
+         ref_timestamp
        ) do
     message = %StartMining{
       transaction: tx,
@@ -131,7 +132,7 @@ defmodule Archethic do
       network_chains_view_hash: NetworkView.get_chains_hash(),
       p2p_view_hash: NetworkView.get_p2p_hash(),
       contract_context: contract_context,
-      ref_timestamp: DateTime.utc_now()
+      ref_timestamp: ref_timestamp
     }
 
     Task.Supervisor.async_stream_nolink(
diff --git a/lib/archethic/election.ex b/lib/archethic/election.ex
index 5555bbc1c..a752d368f 100755
--- a/lib/archethic/election.ex
+++ b/lib/archethic/election.ex
@@ -28,11 +28,11 @@ defmodule Archethic.Election do
       |> Transaction.to_pending()
       |> Transaction.serialize()
 
-    tx_hash =
+    sorting_hash =
       <<serialized_tx::bitstring, DateTime.to_unix(timestamp, :millisecond)::64>>
       |> Crypto.hash()
 
-    Crypto.sign_with_daily_nonce_key(tx_hash, timestamp)
+    Crypto.sign_with_daily_nonce_key(sorting_hash, timestamp)
   end
 
   @doc """
diff --git a/lib/archethic/mining.ex b/lib/archethic/mining.ex
index 43090261b..4918cba9f 100644
--- a/lib/archethic/mining.ex
+++ b/lib/archethic/mining.ex
@@ -86,7 +86,7 @@ defmodule Archethic.Mining do
       ) do
     sorting_seed = Election.validation_nodes_election_seed_sorting(tx, ref_timestamp)
 
-    node_list = P2P.authorized_and_available_nodes()
+    node_list = P2P.authorized_and_available_nodes(ref_timestamp)
 
     storage_nodes = Election.chain_storage_nodes(tx_address, node_list)
 
diff --git a/mix.exs b/mix.exs
index 13c7a79a8..d1efefcad 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule Archethic.MixProject do
   def project do
     [
       app: :archethic,
-      version: "1.5.12",
+      version: "1.5.13",
       build_path: "_build",
       config_path: "config/config.exs",
       deps_path: "deps",