diff --git a/etherlink/CHANGES_NODE.md b/etherlink/CHANGES_NODE.md
index bc6f240264eb9872564662ffc1dbb292ae20e260..1c67936b7115825f9f7dc473961b3c90cbebc9b1 100644
--- a/etherlink/CHANGES_NODE.md
+++ b/etherlink/CHANGES_NODE.md
@@ -13,6 +13,9 @@ the store (!18713).
 
 ### RPCs changes
 
+- Revert outputting EIP-55 encoded addresses in the RPC responses. This is not
+  a standard behavior for nodes of EVM-compatible chains. (!18757)
+
 ### Metrics changes
 
 ### Command-line interface changes
diff --git a/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml b/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
index 95442b79fd17035278f52541a191ad5d8d66a8e5..ef2ce3545ac0bd68976584b54730892722c5c8af 100644
--- a/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
+++ b/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
@@ -70,27 +70,7 @@ type address = Address of hex [@@ocaml.unboxed]
 
 let address_of_string s = Address (hex_of_string (String.lowercase_ascii s))
 
-let address_to_string (Address (Hex address)) =
-  (* Implementation compliant with EIP-55
-     See https://eips.ethereum.org/EIPS/eip-55 *)
-  let hexchar_to_int c =
-    if '0' <= c && c <= '9' then Char.code c - Char.code '0'
-    else if 'A' <= c && c <= 'F' then Char.code c - Char.code 'A' + 10
-    else if 'a' <= c && c <= 'f' then Char.code c - Char.code 'a' + 10
-    else raise (Invalid_argument "address_to_string: not a valid address")
-  in
-
-  let hash = Digestif.KECCAK_256.(to_hex @@ digest_string address) in
-  let address = Bytes.of_string address in
-
-  Bytes.iteri
-    (fun i c ->
-      if 'a' <= c && c <= 'f' then
-        let hash_nibble = hexchar_to_int (String.get hash i) in
-        if hash_nibble >= 8 then Bytes.set address i (Char.uppercase_ascii c))
-    address ;
-
-  "0x" ^ Bytes.to_string address
+let address_to_string (Address a) = hex_to_string a
 
 let address_encoding =
   Data_encoding.(conv address_to_string address_of_string string)
@@ -564,7 +544,7 @@ type 'transaction_object block = {
   transactionRoot : hash;
   stateRoot : hash;
   receiptRoot : hash;
-  miner : address;
+  miner : hex;
   difficulty : quantity;
   totalDifficulty : quantity;
   extraData : hex;
@@ -626,8 +606,8 @@ let block_from_rlp_v0 bytes =
          have that, potentially this could be the sequencer. *)
       let miner =
         decode_option
-          ~default:(Address (Hex "0000000000000000000000000000000000000000"))
-          decode_address
+          ~default:(Hex "0000000000000000000000000000000000000000")
+          decode_hex
           miner
       in
       let transactionRoot =
@@ -726,8 +706,8 @@ let block_from_rlp_v1 bytes =
          have that, potentially this could be the sequencer. *)
       let miner =
         decode_option
-          ~default:(Address (Hex "0000000000000000000000000000000000000000"))
-          decode_address
+          ~default:(Hex "0000000000000000000000000000000000000000")
+          decode_hex
           miner
       in
       let transactionRoot =
@@ -948,7 +928,7 @@ let block_encoding transaction_object_encoding =
              (req "transactionsRoot" hash_encoding)
              (req "stateRoot" hash_encoding)
              (req "receiptsRoot" hash_encoding)
-             (req "miner" address_encoding))
+             (req "miner" hex_encoding))
           (obj10
              (req "difficulty" quantity_encoding)
              (req "totalDifficulty" quantity_encoding)
@@ -1099,6 +1079,28 @@ module Address = struct
   let to_string = address_to_string
 
   let of_string = address_of_string
+
+  let to_eip55_string (Address (Hex address)) =
+    (* Implementation compliant with EIP-55
+       See https://eips.ethereum.org/EIPS/eip-55 *)
+    let hexchar_to_int c =
+      if '0' <= c && c <= '9' then Char.code c - Char.code '0'
+      else if 'A' <= c && c <= 'F' then Char.code c - Char.code 'A' + 10
+      else if 'a' <= c && c <= 'f' then Char.code c - Char.code 'a' + 10
+      else raise (Invalid_argument "address_to_string: not a valid address")
+    in
+
+    let hash = Digestif.KECCAK_256.(to_hex @@ digest_string address) in
+    let address = Bytes.of_string address in
+
+    Bytes.iteri
+      (fun i c ->
+        if 'a' <= c && c <= 'f' then
+          let hash_nibble = hexchar_to_int (String.get hash i) in
+          if hash_nibble >= 8 then Bytes.set address i (Char.uppercase_ascii c))
+      address ;
+
+    "0x" ^ Bytes.to_string address
 end
 
 module AddressMap = MapMake (Address)
diff --git a/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli b/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
index 9f855b92a66ac6f94ec848e79f5cc46d56200f52..f89aea18e9adff44e9c6a3e0ff7f09873fdd3f5b 100644
--- a/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
+++ b/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
@@ -184,7 +184,7 @@ type 'transaction_object block = {
   transactionRoot : hash;
   stateRoot : hash;
   receiptRoot : hash;
-  miner : address;
+  miner : hex;
   difficulty : quantity;
   totalDifficulty : quantity;
   extraData : hex;
@@ -302,6 +302,8 @@ module Address : sig
   val to_string : t -> string
 
   val of_string : string -> t
+
+  val to_eip55_string : t -> string
 end
 
 (** [timestamp_to_bytes timestamp] transforms the timestamp to bytes
diff --git a/etherlink/bin_node/lib_dev/evm_store.ml b/etherlink/bin_node/lib_dev/evm_store.ml
index 0f01f797692b1c3cac14118ec237232ab23d1e69..1ff9f88d05f6ad884556135a2bb82374b9dabe42 100644
--- a/etherlink/bin_node/lib_dev/evm_store.ml
+++ b/etherlink/bin_node/lib_dev/evm_store.ml
@@ -125,7 +125,7 @@ module Legacy_encodings = struct
                (req "transactionsRoot" hash_encoding)
                (req "stateRoot" hash_encoding)
                (req "receiptsRoot" hash_encoding)
-               (req "miner" address_encoding))
+               (req "miner" hex_encoding))
             (obj10
                (req "difficulty" quantity_encoding)
                (req "totalDifficulty" quantity_encoding)
diff --git a/etherlink/bin_node/main.ml b/etherlink/bin_node/main.ml
index 1372799cd91e0aa7a01529f8d72196fe20022a64..98e2cd12a543bc2a0822a86ef704a784b3b66c5d 100644
--- a/etherlink/bin_node/main.ml
+++ b/etherlink/bin_node/main.ml
@@ -1456,7 +1456,7 @@ let show_kms_key_info_command =
                  fprintf
                    fmt
                    "@ Ethereum address: %s"
-                   (Ethereum_types.Address.to_string addr)))
+                   (Ethereum_types.Address.to_eip55_string addr)))
             eth_opt ;
           return_unit
       | None ->
diff --git a/etherlink/tezt/tests/evm_rollup.ml b/etherlink/tezt/tests/evm_rollup.ml
index aca0083086d4e31402d0ad7ea11589815262070c..e3b3d5daeaca2f25d100561242a3237eba93cabc 100644
--- a/etherlink/tezt/tests/evm_rollup.ml
+++ b/etherlink/tezt/tests/evm_rollup.ml
@@ -770,8 +770,9 @@ let deploy_with_base_checks {contract; expected_address} full_evm_setup =
   let endpoint = Evm_node.endpoint evm_node in
   let sender = Eth_account.bootstrap_accounts.(0) in
   let* contract_address, tx = deploy ~contract ~sender full_evm_setup in
+  let address = String.lowercase_ascii contract_address in
   Check.(
-    (contract_address = expected_address)
+    (address = expected_address)
       string
       ~error_msg:"Expected address to be %R but was %L.") ;
   let* code_in_kernel =
@@ -1235,7 +1236,7 @@ let test_l2_deploy_simple_storage =
   deploy_with_base_checks
     {
       contract = simple_storage_resolved;
-      expected_address = "0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344";
+      expected_address = "0xd77420f73b4612a7a99dba8c2afd30a1886b0344";
     }
     evm_setup
 
@@ -1369,7 +1370,8 @@ let test_l2_deploy_erc20 =
   (* deploy the contract *)
   let* address, tx = deploy ~contract:erc20_resolved ~sender evm_setup in
   Check.(
-    (address = "0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344")
+    (String.lowercase_ascii address
+    = "0xd77420f73b4612a7a99dba8c2afd30a1886b0344")
       string
       ~error_msg:"Expected address to be %R but was %L.") ;
 
@@ -1488,7 +1490,7 @@ let test_deploy_contract_with_push0 =
   deploy_with_base_checks
     {
       contract = shanghai_storage_resolved;
-      expected_address = "0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344";
+      expected_address = "0xd77420f73b4612a7a99dba8c2afd30a1886b0344";
     }
     evm_setup
 
@@ -1537,7 +1539,7 @@ let test_log_index =
       ~gas_price:1_000_000_000
       ~gas:27_638
       ~value:Wei.zero
-      ~address:"0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344"
+      ~address:"0xd77420f73b4612a7a99dba8c2afd30a1886b0344"
       ~signature:"emitBoth(uint256)"
       ~arguments:["100"]
       ()
@@ -1550,7 +1552,7 @@ let test_log_index =
       ~gas_price:1_000_000_000
       ~gas:25_664
       ~value:Wei.zero
-      ~address:"0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344"
+      ~address:"0xd77420f73b4612a7a99dba8c2afd30a1886b0344"
       ~signature:"emitA(uint256)"
       ~arguments:["10"]
       ()
@@ -1915,7 +1917,7 @@ let test_rpc_txpool_content =
       ~gas_price:100_000
       ~gas:23_300
       ~value:(Wei.of_string "100")
-      ~address:"0x11D3C9168db9d12a3C591061D555870969b43dC9"
+      ~address:"0x11d3c9168db9d12a3c591061d555870969b43dc9"
       ()
   in
   let* tx2 =
@@ -1926,7 +1928,7 @@ let test_rpc_txpool_content =
       ~gas_price:100_000
       ~gas:23_300
       ~value:(Wei.of_string "100")
-      ~address:"0x11D3C9168db9d12a3C591061D555870969b43dC9"
+      ~address:"0x11d3c9168db9d12a3c591061d555870969b43dc9"
       ()
   in
   let*@ tx_hash1 = Rpc.send_raw_transaction ~raw_tx:tx1 evm_node in
@@ -1959,12 +1961,12 @@ let test_rpc_txpool_content =
   let transaction_addr_queued = List.nth txpool_queued 0 in
   Check.(
     (transaction_addr_pending.address
-   = "0x6ce4d79d4E77402e1ef3417Fdda433aA744C6e1c")
+   = "0x6ce4d79d4e77402e1ef3417fdda433aa744c6e1c")
       string)
     ~error_msg:"Expected caller of transaction_1 to be %R, got %L." ;
   Check.(
     (transaction_addr_queued.address
-   = "0x6ce4d79d4E77402e1ef3417Fdda433aA744C6e1c")
+   = "0x6ce4d79d4e77402e1ef3417fdda433aa744c6e1c")
       string)
     ~error_msg:"Expected caller of transaction_2 to be %R, got %L." ;
   let num_pending_transaction_addr_1 =
@@ -1994,13 +1996,13 @@ let test_rpc_txpool_content =
       ~transaction_content:pending_transaction_addr_1_content
       ~blockHash:"null"
       ~blockNumber:"null"
-      ~from:"0x6ce4d79d4E77402e1ef3417Fdda433aA744C6e1c"
+      ~from:"0x6ce4d79d4e77402e1ef3417fdda433aa744c6e1c"
       ~gas:"0x5b04"
       ~gasPrice:"0x186a0"
       ~hash:"0xed148f664807dfcb3c7095de22a6c63e72ae4f9d503549c525f5014327b51693"
       ~input:"0x"
       ~nonce:"0x0"
-      ~to_:"0x11D3C9168db9d12a3C591061D555870969b43dC9"
+      ~to_:"0x11d3c9168db9d12a3c591061d555870969b43dc9"
       ~transactionIndex:"null"
       ~value:"0x64"
         (* TODO: https://gitlab.com/tezos/tezos/-/issues/7194
@@ -2016,13 +2018,13 @@ let test_rpc_txpool_content =
       ~transaction_content:queued_transaction_addr_1_content
       ~blockHash:"null"
       ~blockNumber:"null"
-      ~from:"0x6ce4d79d4E77402e1ef3417Fdda433aA744C6e1c"
+      ~from:"0x6ce4d79d4e77402e1ef3417fdda433aa744c6e1c"
       ~gas:"0x5b04"
       ~gasPrice:"0x186a0"
       ~hash:"0x38b2831803a0f9a82bcc68f79bf167311b0adfe9e3d111a7f9579cdfcbae0f0f"
       ~input:"0x"
       ~nonce:"0x1"
-      ~to_:"0x11D3C9168db9d12a3C591061D555870969b43dC9"
+      ~to_:"0x11d3c9168db9d12a3c591061d555870969b43dc9"
       ~transactionIndex:"null"
       ~value:"0x64"
         (* TODO: https://gitlab.com/tezos/tezos/-/issues/7194
@@ -2369,7 +2371,7 @@ let test_estimate_gas_additionnal_field =
     let eth_call =
       [
         ( "from",
-          Ezjsonm.encode_string @@ "0x6ce4d79d4E77402e1ef3417Fdda433aA744C6e1c"
+          Ezjsonm.encode_string @@ "0x6ce4d79d4e77402e1ef3417fdda433aa744c6e1c"
         );
         ("data", Ezjsonm.encode_string @@ "0x" ^ data);
         ("value", Ezjsonm.encode_string @@ "0x0");
@@ -2398,7 +2400,8 @@ let test_eth_call_storage_contract =
     in
     let* () = check_tx_succeeded ~endpoint ~tx in
     Check.(
-      (address = "0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344")
+      (String.lowercase_ascii address
+      = "0xd77420f73b4612a7a99dba8c2afd30a1886b0344")
         string
         ~error_msg:"Expected address to be %R but was %L.") ;
 
@@ -4370,8 +4373,9 @@ let test_rpc_getLogs =
   let* erc20_resolved = erc20 evm_version in
   (* deploy the contract *)
   let* address, _tx = deploy ~contract:erc20_resolved ~sender evm_setup in
+  let address = String.lowercase_ascii address in
   Check.(
-    (address = "0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344")
+    (address = "0xd77420f73b4612a7a99dba8c2afd30a1886b0344")
       string
       ~error_msg:"Expected address to be %R but was %L.") ;
   (* minting / burning *)
@@ -4615,7 +4619,7 @@ let test_l2_revert_returns_unused_gas =
       ~gas_price:65_536
       ~gas:100_000
       ~value:Wei.zero
-      ~address:"0xd77420F73B4612a7A99DBA8c2AFd30a1886b0344"
+      ~address:"0xd77420f73b4612a7a99dba8c2afd30a1886b0344"
       ~signature:"run()"
       ()
   in
diff --git a/etherlink/tezt/tests/evm_sequencer.ml b/etherlink/tezt/tests/evm_sequencer.ml
index 8f7b695b2be9a780d828dee305eb7eedabda6ff9..dc9a594443706d1c7d09f6ce173c373a9c002d18 100644
--- a/etherlink/tezt/tests/evm_sequencer.ml
+++ b/etherlink/tezt/tests/evm_sequencer.ml
@@ -8075,7 +8075,8 @@ let test_trace_delegate_call =
       sequencer
   in
   Check.(
-    JSON.(top_call |-> "to" |> as_string = delegator_address)
+    JSON.(
+      top_call |-> "to" |> as_string = String.lowercase_ascii delegator_address)
       string
       ~error_msg:"Top call should have been traced as coming from %R but was %L") ;
   Check.(
@@ -8084,11 +8085,15 @@ let test_trace_delegate_call =
       ~error_msg:"Top call should have some subcalls") ;
   let delegatecall = JSON.(top_call |-> "calls" |> as_list |> List.hd) in
   Check.(
-    JSON.(delegatecall |-> "from" |> as_string = delegator_address)
+    JSON.(
+      delegatecall |-> "from" |> as_string
+      = String.lowercase_ascii delegator_address)
       string
       ~error_msg:"Delegate call should be traced as coming from %R but was %L") ;
   Check.(
-    JSON.(delegatecall |-> "to" |> as_string = delegated_address)
+    JSON.(
+      delegatecall |-> "to" |> as_string
+      = String.lowercase_ascii delegated_address)
       string
       ~error_msg:
         "Delegate call should be traced as going to delegated contract %R but \
@@ -8767,7 +8772,9 @@ let test_trace_transaction_calltracer_deposit =
   unit
 
 let test_miner =
-  let sequencer_pool_address = "0x8aaD6553Cf769Aa7b89174bE824ED0e53768ed70" in
+  let sequencer_pool_address =
+    String.lowercase_ascii "0x8aaD6553Cf769Aa7b89174bE824ED0e53768ed70"
+  in
   register_all
     ~__FILE__
     ~tags:["evm"; "miner"; "coinbase"]
@@ -8775,7 +8782,7 @@ let test_miner =
     ~sequencer_pool_address
   @@ fun {sequencer; evm_version; _} _protocol ->
   let*@ block = Rpc.get_block_by_number ~block:"latest" sequencer in
-  Check.((block.miner = sequencer_pool_address) string)
+  Check.((String.lowercase_ascii block.miner = sequencer_pool_address) string)
     ~error_msg:
       "Block miner should be the sequencer pool address, expected %R got %L" ;
   (* We deploy a contract that stores the block coinbase in its storage, and
@@ -8801,7 +8808,10 @@ let test_miner =
       ~method_call:"getStorageCoinbase()"
       ()
   in
-  Check.((String.trim storage_coinbase = sequencer_pool_address) string)
+  Check.(
+    (String.lowercase_ascii @@ String.trim storage_coinbase
+    = sequencer_pool_address)
+      string)
     ~error_msg:
       "Stored coinbase should be the sequencer pool address, expected %R got %L" ;
   let* view_coinbase =
@@ -8812,7 +8822,10 @@ let test_miner =
       ~method_call:"getStorageCoinbase()"
       ()
   in
-  Check.((String.trim view_coinbase = sequencer_pool_address) string)
+  Check.(
+    (String.lowercase_ascii @@ String.trim view_coinbase
+    = sequencer_pool_address)
+      string)
     ~error_msg:
       "Viewed coinbase should be the sequencer pool address, expected %R got %L" ;
 
@@ -10452,11 +10465,11 @@ let test_tx_pool_replacing_transactions_on_limit () =
   in
   let txpool_content () =
     let*@ pending, queued = Rpc.txpool_content sequencer in
-    let sender = sender.address in
+    let sender = String.lowercase_ascii sender.address in
     let pending =
       List.find_map
         (fun Rpc.{address; transactions} ->
-          if address = sender then
+          if String.lowercase_ascii address = sender then
             Some (List.map fst transactions |> List.sort compare)
           else None)
         pending
@@ -10464,7 +10477,7 @@ let test_tx_pool_replacing_transactions_on_limit () =
     let queued =
       List.find_map
         (fun Rpc.{address; transactions} ->
-          if address = sender then
+          if String.lowercase_ascii address = sender then
             Some (List.map fst transactions |> List.sort compare)
           else None)
         queued
@@ -11237,6 +11250,7 @@ let test_websocket_logs_event =
            ~bin:erc20.bin)
         sequencer
     in
+    let address = String.lowercase_ascii address in
     let transfer_event_topic =
       let h =
         Tezos_crypto.Hacl.Hash.Keccak_256.digest