diff --git a/lib/block/blockheader.js b/lib/block/blockheader.js
index 92f649a1e..cec95bba7 100644
--- a/lib/block/blockheader.js
+++ b/lib/block/blockheader.js
@@ -163,6 +163,7 @@ BlockHeader.fromBufferReader = function fromBufferReader(br) {
  */
 BlockHeader.prototype.toObject = function toObject() {
   return {
+    hash: this.hash,
     version: this.version,
     prevHash: BufferUtil.reverse(this.prevHash).toString('hex'),
     merkleRoot: BufferUtil.reverse(this.merkleRoot).toString('hex'),
diff --git a/lib/transaction/transaction.js b/lib/transaction/transaction.js
index f1aefe9f7..d643ad787 100644
--- a/lib/transaction/transaction.js
+++ b/lib/transaction/transaction.js
@@ -332,6 +332,7 @@ Transaction.prototype.toObject = function toObject() {
     outputs.push(output.toObject());
   });
   var obj = {
+    hash: this.hash,
     version: this.version,
     inputs: inputs,
     outputs: outputs,
diff --git a/test/block/block.js b/test/block/block.js
index 9ace66838..70852a7ff 100644
--- a/test/block/block.js
+++ b/test/block/block.js
@@ -175,6 +175,7 @@ describe('Block', function() {
       block.id.should.equal(blockOneId);
       block.toObject().should.deep.equal({
         header: {
+          hash: '00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048',
           version: 1,
           prevHash: '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f',
           merkleRoot: '0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098',
@@ -183,6 +184,7 @@ describe('Block', function() {
           nonce: 2573394689
         },
         transactions: [{
+          hash: '0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098',
           version: 1,
           inputs: [{
             prevTxId: '0000000000000000000000000000000000000000000000000000000000000000',
diff --git a/test/data/merkleblocks.js b/test/data/merkleblocks.js
index 246510447..0ed1ea8d8 100644
--- a/test/data/merkleblocks.js
+++ b/test/data/merkleblocks.js
@@ -27,12 +27,13 @@ module.exports = {
   JSON: [
     { // Mainnet Block 100014
       header: {
+        hash: "000000000000b731f2eef9e8c63173adfb07e41bd53eb0ef0a6b720d6cb6dea4",
         version: 1,
         prevHash: "0000000000016780c81d42b7eff86974c36f5ae026e8662a4393a7f39c86bb82",
         merkleRoot: "8772d9d0fdf8c1303c7b1167e3c73b095fd970e33c799c6563d98b2e96c5167f",
         time: 1293629558,
         bits: 453281356,
-        nonce: 151839121
+        nonce: 696601429
       },
       numTransactions: 7,
       hashes: [
@@ -45,6 +46,7 @@ module.exports = {
     },
     { // Mainnet Block 12363
       header: {
+        hash: "00000000ae81d8be56fcad40f7b2ca03612a9ab681ca5bc6628ab3c2d914ef9a",
         version: 1,
         prevHash: "00000000acc3e6a055e05edc7cd0cfac6187cd73adc3c06d408d05c95edaaef8",
         merkleRoot: "67313e7a73b62faffe9380578a1a96727c1f0af62e61eb8aa050064007a008d0",
@@ -443,6 +445,7 @@ module.exports = {
         "036bf6944a47791471e9a2cb86615de837f3aa234a7d1cd024026b3e1daee79e"
       ],
       header : {
+        hash: "00000000000000018eaf634bf13b7e5e50860b99466b91140538223c75b75049",
         prevHash : "000000000000000124f6ce137a43bb288d63cc84f9847033cb84595ead05f9de",
         merkleRoot : "792f40129c95aec653d2838ef4b031bf541f11c764ca6c3ecc2e20b396ce83cb",
         time : 1389715824,