diff --git a/codex/contracts/requests.nim b/codex/contracts/requests.nim
index 5d5a7780..1abfcd7e 100644
--- a/codex/contracts/requests.nim
+++ b/codex/contracts/requests.nim
@@ -28,14 +28,7 @@ type
     maxSlotLoss* {.serialize.}: uint64
   StorageContent* = object
     cid* {.serialize.}: string
-    erasure*: StorageErasure
-    por*: StoragePoR
-  StorageErasure* = object
-    totalChunks*: uint64
-  StoragePoR* = object
-    u*: seq[byte]
-    publicKey*: seq[byte]
-    name*: seq[byte]
+    merkleRoot*: array[32, byte]
   Slot* = object
     request* {.serialize.}: StorageRequest
     slotIndex* {.serialize.}: UInt256
@@ -111,28 +104,9 @@ func fromTuple(_: type StorageAsk, tupl: tuple): StorageAsk =
 func fromTuple(_: type StorageContent, tupl: tuple): StorageContent =
   StorageContent(
     cid: tupl[0],
-    erasure: tupl[1],
-    por: tupl[2]
+    merkleRoot: tupl[1]
   )
 
-func fromTuple(_: type StorageErasure, tupl: tuple): StorageErasure =
-  StorageErasure(
-    totalChunks: tupl[0]
-  )
-
-func fromTuple(_: type StoragePoR, tupl: tuple): StoragePoR =
-  StoragePoR(
-    u: tupl[0],
-    publicKey: tupl[1],
-    name: tupl[2]
-  )
-
-func solidityType*(_: type StoragePoR): string =
-  solidityType(StoragePoR.fieldTypes)
-
-func solidityType*(_: type StorageErasure): string =
-  solidityType(StorageErasure.fieldTypes)
-
 func solidityType*(_: type StorageContent): string =
   solidityType(StorageContent.fieldTypes)
 
@@ -142,12 +116,6 @@ func solidityType*(_: type StorageAsk): string =
 func solidityType*(_: type StorageRequest): string =
   solidityType(StorageRequest.fieldTypes)
 
-func encode*(encoder: var AbiEncoder, por: StoragePoR) =
-  encoder.write(por.fieldValues)
-
-func encode*(encoder: var AbiEncoder, erasure: StorageErasure) =
-  encoder.write(erasure.fieldValues)
-
 func encode*(encoder: var AbiEncoder, content: StorageContent) =
   encoder.write(content.fieldValues)
 
@@ -163,14 +131,6 @@ func encode*(encoder: var AbiEncoder, request: StorageRequest) =
 func encode*(encoder: var AbiEncoder, request: Slot) =
   encoder.write(request.fieldValues)
 
-func decode*(decoder: var AbiDecoder, T: type StoragePoR): ?!T =
-  let tupl = ?decoder.read(StoragePoR.fieldTypes)
-  success StoragePoR.fromTuple(tupl)
-
-func decode*(decoder: var AbiDecoder, T: type StorageErasure): ?!T =
-  let tupl = ?decoder.read(StorageErasure.fieldTypes)
-  success StorageErasure.fromTuple(tupl)
-
 func decode*(decoder: var AbiDecoder, T: type StorageContent): ?!T =
   let tupl = ?decoder.read(StorageContent.fieldTypes)
   success StorageContent.fromTuple(tupl)
diff --git a/codex/node.nim b/codex/node.nim
index ed16a79f..5470af5a 100644
--- a/codex/node.nim
+++ b/codex/node.nim
@@ -377,14 +377,7 @@ proc requestStorage*(
     ),
     content: StorageContent(
       cid: $encodedBlk.cid,
-      erasure: StorageErasure(
-        totalChunks: encoded.blocksCount.uint64,
-      ),
-      por: StoragePoR(
-        u: @[],         # TODO: PoR setup
-        publicKey: @[], # TODO: PoR setup
-        name: @[]       # TODO: PoR setup
-      )
+      merkleRoot: array[32, byte].default # TODO: add merkle root for storage proofs
     ),
     expiry: expiry
   )
diff --git a/tests/codex/utils/testjson.nim b/tests/codex/utils/testjson.nim
index edb3cdce..a32f3bdb 100644
--- a/tests/codex/utils/testjson.nim
+++ b/tests/codex/utils/testjson.nim
@@ -12,7 +12,6 @@ import pkg/codex/utils/json as utilsjson
 import pkg/questionable
 import pkg/questionable/results
 import pkg/libp2p
-import ../examples
 import ../helpers
 
 checksuite "json serialization":
@@ -37,14 +36,7 @@ checksuite "json serialization":
       ),
       content: StorageContent(
         cid: "zb2rhheVmk3bLks5MgzTqyznLu1zqGH5jrfTA1eAZXrjx7Vob",
-        erasure: StorageErasure(
-          totalChunks: 12,
-        ),
-        por: StoragePoR(
-          u: @(array[480, byte].fromHex("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")),
-          publicKey: @(array[96, byte].fromHex("0xb231b19de641f678d250623b2b76099ab4bbd67aac19dcf42ded946831e3366d2a20af0fd9e841197e7e64d7639da4518b76c353db480087e21d55b470f24a180d6d6c8265bf3895e2e4e4e54b8ca9334d62b22feeeed8e77e54bfbc8fae6b62")),
-          name: @(array[512, byte].fromHex("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"))
-        )
+        merkleRoot: array[32, byte].fromHex("0xc066dd7e405de5a795ce1e765209cfaa6de6c74829c607d1a2fe53107107a298")
       ),
       expiry: 1691545330.u256,
       nonce: Nonce array[32, byte].fromHex("0xd4ebeadc44641c0a271153f6366f24ebb5e3aa64f9ee5e62794babc2e75950a1")
@@ -62,14 +54,7 @@ checksuite "json serialization":
                       },
                       "content": {
                         "cid": "zb2rhheVmk3bLks5MgzTqyznLu1zqGH5jrfTA1eAZXrjx7Vob",
-                        "erasure": {
-                          "totalChunks": 12
-                        },
-                        "por": {
-                          "u": "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",
-                          "publicKey": "0xb231b19de641f678d250623b2b76099ab4bbd67aac19dcf42ded946831e3366d2a20af0fd9e841197e7e64d7639da4518b76c353db480087e21d55b470f24a180d6d6c8265bf3895e2e4e4e54b8ca9334d62b22feeeed8e77e54bfbc8fae6b62",
-                          "name": "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"
-                        }
+                        "merkleRoot": "0xc066dd7e405de5a795ce1e765209cfaa6de6c74829c607d1a2fe53107107a298"
                       },
                       "expiry": "1691545330",
                       "nonce": "0xd4ebeadc44641c0a271153f6366f24ebb5e3aa64f9ee5e62794babc2e75950a1"
diff --git a/tests/examples.nim b/tests/examples.nim
index 1f2a4466..840af5d3 100644
--- a/tests/examples.nim
+++ b/tests/examples.nim
@@ -1,5 +1,4 @@
 import std/random
-import std/strutils
 import std/sequtils
 import std/times
 import std/typetraits
@@ -45,14 +44,7 @@ proc example*(_: type StorageRequest): StorageRequest =
     ),
     content: StorageContent(
       cid: "zb2rhheVmk3bLks5MgzTqyznLu1zqGH5jrfTA1eAZXrjx7Vob",
-      erasure: StorageErasure(
-        totalChunks: 12,
-      ),
-      por: StoragePoR(
-        u: @(array[480, byte].example),
-        publicKey: @(array[96, byte].example),
-        name: @(array[512, byte].example)
-      )
+      merkleRoot: array[32, byte].example
     ),
     expiry: (getTime() + initDuration(hours=1)).toUnix.u256,
     nonce: Nonce.example
diff --git a/vendor/codex-contracts-eth b/vendor/codex-contracts-eth
index 14e453ac..b625f0d5 160000
--- a/vendor/codex-contracts-eth
+++ b/vendor/codex-contracts-eth
@@ -1 +1 @@
-Subproject commit 14e453ac3150e6c9ca277e605d5df9389ac7eea7
+Subproject commit b625f0d519abc9b84cf759868779daa56ceb28c8