diff --git a/src/proto_021_PsQuebec/lib_delegate/baking_events.ml b/src/proto_021_PsQuebec/lib_delegate/baking_events.ml
index adbccc199f064c881aa302a01add9f2ddadcfa12..1c23c031239b512921454d2b9da520f15bbead52 100644
--- a/src/proto_021_PsQuebec/lib_delegate/baking_events.ml
+++ b/src/proto_021_PsQuebec/lib_delegate/baking_events.ml
@@ -613,7 +613,9 @@ module Delegates = struct
           Format.(
             pp_print_list ~pp_sep:pp_print_cut Baking_state.pp_consensus_key)
           delegates)
-      ("delegates", Data_encoding.list Baking_state.consensus_key_encoding)
+      ( "delegates",
+        Data_encoding.list
+          Baking_state.consensus_key_without_sk_encoding__cannot_decode )
 end
 
 module Scheduling = struct
diff --git a/src/proto_021_PsQuebec/lib_delegate/baking_state.ml b/src/proto_021_PsQuebec/lib_delegate/baking_state.ml
index 8f3e9e8231533c88392c59c1ba768f58fab6ff35..6c6a12dd621fb3b712c887e2f8abcd4f7b4b3874 100644
--- a/src/proto_021_PsQuebec/lib_delegate/baking_state.ml
+++ b/src/proto_021_PsQuebec/lib_delegate/baking_state.ml
@@ -62,6 +62,18 @@ let consensus_key_encoding =
        (req "public_key_hash" Signature.Public_key_hash.encoding)
        (req "secret_key_uri" string))
 
+let consensus_key_without_sk_encoding__cannot_decode =
+  let open Data_encoding in
+  conv
+    (fun {alias; public_key; public_key_hash; _} ->
+      (alias, public_key, public_key_hash))
+    (fun (_alias, _public_key, _public_key_hash) ->
+      Stdlib.failwith "Unexpected secret key")
+    (obj3
+       (req "alias" (option string))
+       (req "public_key" Signature.Public_key.encoding)
+       (req "public_key_hash" Signature.Public_key_hash.encoding))
+
 let pp_consensus_key fmt {alias; public_key_hash; _} =
   match alias with
   | None -> Format.fprintf fmt "%a" Signature.Public_key_hash.pp public_key_hash
diff --git a/src/proto_021_PsQuebec/lib_delegate/baking_state.mli b/src/proto_021_PsQuebec/lib_delegate/baking_state.mli
index 0244ed7342b79c330b7f8d85496d963e1c143f5c..6ba1c4857e43021537889e79038dac98e1aba176 100644
--- a/src/proto_021_PsQuebec/lib_delegate/baking_state.mli
+++ b/src/proto_021_PsQuebec/lib_delegate/baking_state.mli
@@ -35,6 +35,12 @@ type consensus_key = {
 
 val consensus_key_encoding : consensus_key Data_encoding.t
 
+(* Encodes the consensus_key but removes the [secret_key_uri] to avoid
+   leaking information.
+   Warning: this encoding was designed to encode, decoding will fail. *)
+val consensus_key_without_sk_encoding__cannot_decode :
+  consensus_key Data_encoding.t
+
 val pp_consensus_key : Format.formatter -> consensus_key -> unit
 
 type consensus_key_and_delegate = consensus_key * Signature.Public_key_hash.t
diff --git a/src/proto_022_PsRiotum/lib_delegate/baking_events.ml b/src/proto_022_PsRiotum/lib_delegate/baking_events.ml
index 3365dbeaf8e0451837fa252110b919f819b302dc..eef4f1f65efd7a7f6137233caed6726163f87ca6 100644
--- a/src/proto_022_PsRiotum/lib_delegate/baking_events.ml
+++ b/src/proto_022_PsRiotum/lib_delegate/baking_events.ml
@@ -600,7 +600,10 @@ module Delegates = struct
           Format.(
             pp_print_list ~pp_sep:pp_print_cut Baking_state.Consensus_key.pp)
           delegates)
-      ("delegates", Data_encoding.list Baking_state.Consensus_key.encoding)
+      ( "delegates",
+        Data_encoding.list
+          Baking_state.Consensus_key
+          .consensus_key_without_sk_encoding__cannot_decode )
 end
 
 module Scheduling = struct
diff --git a/src/proto_022_PsRiotum/lib_delegate/baking_state.ml b/src/proto_022_PsRiotum/lib_delegate/baking_state.ml
index 01dfd7829c402fa2ebbba5d15c3561e06b39d67e..e6728319de67aeaadb689b19e6c03f4dd58b503a 100644
--- a/src/proto_022_PsRiotum/lib_delegate/baking_state.ml
+++ b/src/proto_022_PsRiotum/lib_delegate/baking_state.ml
@@ -77,6 +77,17 @@ module Consensus_key = struct
          (req "public_key_hash" Signature.Public_key_hash.encoding)
          (req "secret_key_uri" string))
 
+  let consensus_key_without_sk_encoding__cannot_decode =
+    let open Data_encoding in
+    conv
+      (fun {alias; public_key; id; _} -> (alias, public_key, id))
+      (fun (_alias, _public_key, _id) ->
+        Stdlib.failwith "Unexpected secret key")
+      (obj3
+         (req "alias" (option string))
+         (req "public_key" Signature.Public_key.encoding)
+         (req "public_key_hash" Signature.Public_key_hash.encoding))
+
   let pp fmt {alias; id; _} =
     match alias with
     | None -> Format.fprintf fmt "%a" Signature.Public_key_hash.pp id
diff --git a/src/proto_022_PsRiotum/lib_delegate/baking_state.mli b/src/proto_022_PsRiotum/lib_delegate/baking_state.mli
index 69c4756058252e830d5ea03db309048b837d70ff..ee6b1ba11d8709df659738ddd76cafe196e29fa6 100644
--- a/src/proto_022_PsRiotum/lib_delegate/baking_state.mli
+++ b/src/proto_022_PsRiotum/lib_delegate/baking_state.mli
@@ -63,6 +63,11 @@ module Consensus_key : sig
 
   val encoding : t Data_encoding.t
 
+  (* Encodes the consensus_key but removes the [secret_key_uri] to avoid
+     leaking information.
+     Warning: this encoding was designed to encode, decoding will fail. *)
+  val consensus_key_without_sk_encoding__cannot_decode : t Data_encoding.t
+
   val pp : Format.formatter -> t -> unit
 end
 
diff --git a/src/proto_alpha/lib_delegate/baking_events.ml b/src/proto_alpha/lib_delegate/baking_events.ml
index 93641c3110451d36f137478cb7cc30760820a9ea..b96204b7fbff80bd277e4c43ba891fc13f4353cf 100644
--- a/src/proto_alpha/lib_delegate/baking_events.ml
+++ b/src/proto_alpha/lib_delegate/baking_events.ml
@@ -607,7 +607,10 @@ module Delegates = struct
           Format.(
             pp_print_list ~pp_sep:pp_print_cut Baking_state.Consensus_key.pp)
           delegates)
-      ("delegates", Data_encoding.list Baking_state.Consensus_key.encoding)
+      ( "delegates",
+        Data_encoding.list
+          Baking_state.Consensus_key
+          .consensus_key_without_sk_encoding__cannot_decode )
 end
 
 module Scheduling = struct
diff --git a/src/proto_alpha/lib_delegate/baking_state.ml b/src/proto_alpha/lib_delegate/baking_state.ml
index daf2cdf5f0592d6d438ec36d0238183adf6c86c2..ffb4130dfa6dfc73a06f75a9f3d8eb2c661efe28 100644
--- a/src/proto_alpha/lib_delegate/baking_state.ml
+++ b/src/proto_alpha/lib_delegate/baking_state.ml
@@ -77,6 +77,17 @@ module Consensus_key = struct
          (req "public_key_hash" Signature.Public_key_hash.encoding)
          (req "secret_key_uri" string))
 
+  let consensus_key_without_sk_encoding__cannot_decode =
+    let open Data_encoding in
+    conv
+      (fun {alias; public_key; id; _} -> (alias, public_key, id))
+      (fun (_alias, _public_key, _id) ->
+        Stdlib.failwith "Unexpected secret key")
+      (obj3
+         (req "alias" (option string))
+         (req "public_key" Signature.Public_key.encoding)
+         (req "public_key_hash" Signature.Public_key_hash.encoding))
+
   let pp fmt {alias; id; _} =
     match alias with
     | None -> Format.fprintf fmt "%a" Signature.Public_key_hash.pp id
diff --git a/src/proto_alpha/lib_delegate/baking_state.mli b/src/proto_alpha/lib_delegate/baking_state.mli
index 94d2ece13d1c2888d0bbdff54626e535bf88ee1f..6ce42effd2a70e481607107cf8e0aa1278e3e71e 100644
--- a/src/proto_alpha/lib_delegate/baking_state.mli
+++ b/src/proto_alpha/lib_delegate/baking_state.mli
@@ -63,6 +63,11 @@ module Consensus_key : sig
 
   val encoding : t Data_encoding.t
 
+  (* Encodes the consensus_key but removes the [secret_key_uri] to avoid
+     leaking information.
+     Warning: this encoding was designed to encode, decoding will fail. *)
+  val consensus_key_without_sk_encoding__cannot_decode : t Data_encoding.t
+
   val pp : Format.formatter -> t -> unit
 end