diff --git a/src/index.js b/src/index.js
index 5289413615..96741cb2b7 100644
--- a/src/index.js
+++ b/src/index.js
@@ -15,16 +15,6 @@ const {
   verifySignature
 } = require('./message/sign')
 
-/**
- * @typedef {Object} InMessage
- * @property {string} from
- * @property {string} receivedFrom
- * @property {string[]} topicIDs
- * @property {Buffer} data
- * @property {Buffer} [signature]
- * @property {Buffer} [key]
- */
-
 function validateRegistrar (registrar) {
   // registrar handling
   if (typeof registrar !== 'object') {
@@ -267,7 +257,7 @@ class PubsubBaseProtocol extends EventEmitter {
 
   /**
    * Validates the given message. The signature will be checked for authenticity.
-   * @param {InMessage} message
+   * @param {rpc.RPC.Message} message
    * @returns {Promise<Boolean>}
    */
   async validate (message) { // eslint-disable-line require-await
diff --git a/src/message/sign.js b/src/message/sign.js
index 89e124f7d5..bfa546db24 100644
--- a/src/message/sign.js
+++ b/src/message/sign.js
@@ -53,7 +53,7 @@ async function verifySignature (message) {
  * Returns the PublicKey associated with the given message.
  * If no, valid PublicKey can be retrieved an error will be returned.
  *
- * @param {InMessage} message
+ * @param {Message} message
  * @returns {Promise<PublicKey>}
  */
 async function messagePublicKey (message) {
@@ -66,12 +66,7 @@ async function messagePublicKey (message) {
     throw new Error('Public Key does not match the originator')
   } else {
     // should be available in the from property of the message (peer id)
-    let from
-    if (typeof message.from === 'string') {
-      from = PeerId.createFromB58String(message.from)
-    } else {
-      from = PeerId.createFromBytes(message.from)
-    }
+    const from = PeerId.createFromBytes(message.from)
 
     if (from.pubKey) {
       return from.pubKey
diff --git a/src/utils.js b/src/utils.js
index 513aec0d39..f20efb9102 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -73,20 +73,28 @@ exports.ensureArray = (maybeArray) => {
  * Ensures `message.from` is base58 encoded
  * @param {Object} message
  * @param {Buffer|String} message.from
- * @param {PeerId} peerId
  * @return {Object}
  */
-exports.normalizeInRpcMessage = (message, peerId) => {
+exports.normalizeInRpcMessage = (message) => {
   const m = Object.assign({}, message)
   if (Buffer.isBuffer(message.from)) {
     m.from = multibase.encode('base58btc', message.from).toString().slice(1)
   }
-  if (peerId) {
-    m.receivedFrom = peerId.toB58String()
-  }
   return m
 }
 
+/**
+ * The same as `normalizeInRpcMessage`, but performed on an array of messages
+ * @param {Object[]} messages
+ * @return {Object[]}
+ */
+exports.normalizeInRpcMessages = (messages) => {
+  if (!messages) {
+    return messages
+  }
+  return messages.map(exports.normalizeInRpcMessage)
+}
+
 exports.normalizeOutRpcMessage = (message) => {
   const m = Object.assign({}, message)
   if (typeof message.from === 'string' || message.from instanceof String) {
@@ -94,3 +102,10 @@ exports.normalizeOutRpcMessage = (message) => {
   }
   return m
 }
+
+exports.normalizeOutRpcMessages = (messages) => {
+  if (!messages) {
+    return messages
+  }
+  return messages.map(exports.normalizeOutRpcMessage)
+}
diff --git a/test/utils.spec.js b/test/utils.spec.js
index fafb907dc1..17ee6116db 100644
--- a/test/utils.spec.js
+++ b/test/utils.spec.js
@@ -59,9 +59,7 @@ describe('utils', () => {
       { from: stringId },
       { from: stringId }
     ]
-    for (let i = 0; i < m.length; i++) {
-      expect(utils.normalizeInRpcMessage(m[i])).to.deep.eql(expected[i])
-    }
+    expect(utils.normalizeInRpcMessages(m)).to.deep.eql(expected)
   })
 
   it('converts an OUT msg.from to binary', () => {
@@ -75,8 +73,6 @@ describe('utils', () => {
       { from: binaryId },
       { from: binaryId }
     ]
-    for (let i = 0; i < m.length; i++) {
-      expect(utils.normalizeOutRpcMessage(m[i])).to.deep.eql(expected[i])
-    }
+    expect(utils.normalizeOutRpcMessages(m)).to.deep.eql(expected)
   })
 })