diff --git a/eth-account-snapshot/test/resolver.spec.js b/eth-account-snapshot/test/resolver.spec.js
index 1e2fbd6..b1f375f 100644
--- a/eth-account-snapshot/test/resolver.spec.js
+++ b/eth-account-snapshot/test/resolver.spec.js
@@ -29,6 +29,10 @@ describe('IPLD format resolver (local)', () => {
     expect(resolver.multicodec).to.equal('eth-account-snapshot')
   })
 
+  it('defaultHashAlg is keccak-256', () => {
+    expect(resolver.defaultHashAlg).to.equal('keccak-256')
+  })
+
   describe('resolver.resolve', () => {
     it('path within scope', () => {
       resolver.resolve(testBlob, 'nonce', (err, result) => {
diff --git a/eth-block-list/test/resolver.spec.js b/eth-block-list/test/resolver.spec.js
index 501f190..e7ea340 100644
--- a/eth-block-list/test/resolver.spec.js
+++ b/eth-block-list/test/resolver.spec.js
@@ -28,6 +28,10 @@ describe('IPLD format resolver (local)', () => {
     expect(resolver.multicodec).to.equal('eth-block-list')
   })
 
+  it('defaultHashAlg is keccak-256', () => {
+    expect(resolver.defaultHashAlg).to.equal('keccak-256')
+  })
+
   describe('resolver.resolve', () => {
     it('uncle #0', (done) => {
       resolver.resolve(testBlob, '0', (err, result) => {
diff --git a/eth-block/test/resolver.spec.js b/eth-block/test/resolver.spec.js
index ce0ecd6..64fff4a 100644
--- a/eth-block/test/resolver.spec.js
+++ b/eth-block/test/resolver.spec.js
@@ -54,6 +54,10 @@ describe('IPLD format resolver (local)', () => {
     expect(resolver.multicodec).to.equal('eth-block')
   })
 
+  it('defaultHashAlg is keccak-256', () => {
+    expect(resolver.defaultHashAlg).to.equal('keccak-256')
+  })
+
   it('can parse the cid', (done) => {
     const testEthBlock = new EthBlockHeader(testData)
     ipldEthBlock.util.cid(testEthBlock, (err, cid) => {
diff --git a/eth-state-trie/test/resolver.spec.js b/eth-state-trie/test/resolver.spec.js
index 674e5c1..7a8209e 100644
--- a/eth-state-trie/test/resolver.spec.js
+++ b/eth-state-trie/test/resolver.spec.js
@@ -92,6 +92,10 @@ describe('IPLD format resolver (local)', () => {
     expect(resolver.multicodec).to.equal('eth-state-trie')
   })
 
+  it('defaultHashAlg is keccak-256', () => {
+    expect(resolver.defaultHashAlg).to.equal('keccak-256')
+  })
+
   describe('resolver.resolve', () => {
     it('root node resolves to branch', (done) => {
       let rootNode = dagNodes['']
diff --git a/eth-storage-trie/test/resolver.spec.js b/eth-storage-trie/test/resolver.spec.js
index 74e1553..d72f1d7 100644
--- a/eth-storage-trie/test/resolver.spec.js
+++ b/eth-storage-trie/test/resolver.spec.js
@@ -60,6 +60,10 @@ describe('IPLD format resolver (local)', () => {
     expect(resolver.multicodec).to.equal('eth-storage-trie')
   })
 
+  it('defaultHashAlg is keccak-256', () => {
+    expect(resolver.defaultHashAlg).to.equal('keccak-256')
+  })
+
   describe('resolver.resolve', () => {
     it('root node resolves to neck', (done) => {
       let rootNode = dagNodes[0]
diff --git a/eth-tx-trie/test/resolver.spec.js b/eth-tx-trie/test/resolver.spec.js
index 6ecf11d..2df6290 100644
--- a/eth-tx-trie/test/resolver.spec.js
+++ b/eth-tx-trie/test/resolver.spec.js
@@ -93,6 +93,10 @@ describe('IPLD format resolver (local)', () => {
     expect(resolver.multicodec).to.equal('eth-tx-trie')
   })
 
+  it('defaultHashAlg is keccak-256', () => {
+    expect(resolver.defaultHashAlg).to.equal('keccak-256')
+  })
+
   describe('resolver.resolve', () => {
     it('root node resolving first tx value', (done) => {
       let rootNode = dagNodes[0]
diff --git a/eth-tx/test/resolver.spec.js b/eth-tx/test/resolver.spec.js
index cd62ed7..869889d 100644
--- a/eth-tx/test/resolver.spec.js
+++ b/eth-tx/test/resolver.spec.js
@@ -33,6 +33,10 @@ describe('IPLD format resolver (local)', () => {
     expect(resolver.multicodec).to.equal('eth-tx')
   })
 
+  it('defaultHashAlg is keccak-256', () => {
+    expect(resolver.defaultHashAlg).to.equal('keccak-256')
+  })
+
   describe('resolver.resolve', () => {
     it('path within scope', () => {
       resolver.resolve(testIpfsBlob, 'nonce', (err, result) => {
diff --git a/util/createResolver.js b/util/createResolver.js
index ac22e15..302f3c4 100644
--- a/util/createResolver.js
+++ b/util/createResolver.js
@@ -9,6 +9,7 @@ function createResolver (multicodec, EthObjClass, mapFromEthObject) {
   const util = createUtil(multicodec, EthObjClass)
   const resolver = {
     multicodec: multicodec,
+    defaultHashAlg: 'keccak-256',
     resolve: resolve,
     tree: tree,
     isLink: createIsLink(resolve),