diff --git a/pyproject.toml b/pyproject.toml
index df082b9..dcfaa4d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "polyswarm"
-version = "3.19.0"
+version = "3.20.0"
 description = "CLI for using the PolySwarm Customer APIs"
 readme = "README.md"
 authors = [{ name = "PolySwarm Developers", email = "info@polyswarm.io" }]
@@ -22,7 +22,7 @@ classifiers = [
 ]
 
 dependencies = [
-    "polyswarm_api>=3.20.0",
+    "polyswarm_api>=3.21.0",
     "click>=7.1",
     "colorama>=0.4.6",
     "click-log>=0.4.0",
@@ -51,7 +51,7 @@ include-package-data = true
 where = ["src"]
 
 [tool.bumpversion]
-current_version = "3.19.0"
+current_version = "3.20.0"
 commit = true
 tag = false
 sign_tags = true
diff --git a/src/polyswarm/__init__.py b/src/polyswarm/__init__.py
index 786602c..c170b8d 100644
--- a/src/polyswarm/__init__.py
+++ b/src/polyswarm/__init__.py
@@ -1 +1 @@
-__version__ = '3.19.0'
+__version__ = '3.20.0'
diff --git a/src/polyswarm/client/sandbox.py b/src/polyswarm/client/sandbox.py
index 79075ca..3c69c4e 100644
--- a/src/polyswarm/client/sandbox.py
+++ b/src/polyswarm/client/sandbox.py
@@ -32,6 +32,35 @@ def submit(ctx, provider_slug, artifact_id, vm_slug, internet_disabled):
         output.sandbox_task(tasks)
 
 
+@sandbox.command('hash', short_help='Submit by hash (sha256/sha1/md5) to be sandboxed.')
+@click.argument('provider_slug', type=click.STRING)
+@click.argument('hash_value', nargs=-1, required=True)
+@click.option('-r', '--hash-file', help='File of hashes, one per line.', type=click.File('r'))
+@click.option('--hash-type', help='Hash type [default:autodetect, sha256|sha1|md5].', default=None)
+@click.option('--vm_slug', 'vm_slug', type=click.STRING)
+@click.option('--internet-disabled', 'internet_disabled', type=click.BOOL, is_flag=True, default=False)
+@click.pass_context
+def hash_(ctx, provider_slug, hash_value, hash_file, hash_type, vm_slug, internet_disabled):
+    """
+    Submit a sample to the sandbox by hash. Resolves the hash to its latest
+    known artifact instance and sandboxes that instance.
+    """
+    api = ctx.obj['api']
+    output = ctx.obj['output']
+    hashes = utils.parse_hashes(hash_value, hash_file=hash_file)
+
+    instance_ids = []
+    for h in hashes:
+        instance = next(iter(api.search_hashes([h], hash_type=hash_type)), None)
+        if instance is None:
+            raise click.ClickException(f'No artifact instances found for hash {h}')
+        instance_ids.append(instance.id)
+
+    for task in api.sandbox_instances(
+            instance_ids, provider_slug=provider_slug, vm_slug=vm_slug, network_enabled=not internet_disabled):
+        output.sandbox_task(task)
+
+
 @sandbox.command('file', short_help='Submit a local file to be sandboxed.')
 @click.argument('provider', type=click.STRING)
 @click.argument('path', type=click.Path(exists=True), required=True)
diff --git a/src/polyswarm/formatters/hashes.py b/src/polyswarm/formatters/hashes.py
index 3cfbeef..b40a572 100644
--- a/src/polyswarm/formatters/hashes.py
+++ b/src/polyswarm/formatters/hashes.py
@@ -45,6 +45,18 @@ def _to_json(result):
     def artifact_instance(self, result, timeout=False):
         click.echo(result.sha1, file=self.out)
 
+    def historical_result(self, result):
+        if result.sha1:
+            click.echo(result.sha1, file=self.out)
+        else:
+            logger.warning('Could not render historical result as sha1, value is %s', result.sha1)
+
+    def live_result(self, result):
+        if result.sha1:
+            click.echo(result.sha1, file=self.out)
+        else:
+            logger.warning('Could not render live result as sha1, value is %s', result.sha1)
+
     def metadata(self, result):
         if result.sha1:
             click.echo(result.sha1, file=self.out)
@@ -62,6 +74,18 @@ def _to_json(result):
     def artifact_instance(self, result, timeout=False):
         click.echo(result.md5, file=self.out)
 
+    def historical_result(self, result):
+        if result.md5:
+            click.echo(result.md5, file=self.out)
+        else:
+            logger.warning('Could not render historical result as md5, value is %s', result.md5)
+
+    def live_result(self, result):
+        if result.md5:
+            click.echo(result.md5, file=self.out)
+        else:
+            logger.warning('Could not render live result as md5, value is %s', result.md5)
+
     def metadata(self, result):
         if result.md5:
             click.echo(result.md5, file=self.out)
diff --git a/src/polyswarm/formatters/text.py b/src/polyswarm/formatters/text.py
index 9c682f1..bf07719 100644
--- a/src/polyswarm/formatters/text.py
+++ b/src/polyswarm/formatters/text.py
@@ -174,6 +174,10 @@ def historical_result(self, result, write=True):
         output.append(self._blue(f'Instance Id: {result.instance_id}'))
         output.append(self._white(f'Created at: {result.created}'))
         output.append(self._white(f'SHA256: {result.sha256}'))
+        if result.sha1:
+            output.append(self._white(f'SHA1: {result.sha1}'))
+        if result.md5:
+            output.append(self._white(f'MD5: {result.md5}'))
         output.append(self._white(f'Rule: {result.rule_name}'))
         if result.malware_family:
             output.append(self._red(f'Malware Family: {result.malware_family}'))
@@ -201,6 +205,10 @@ def live_result(self, result, write=True):
         output.append(self._blue(f'Instance Id: {result.instance_id}'))
         output.append(self._white(f'Created at: {result.created}'))
         output.append(self._white(f'SHA256: {result.sha256}'))
+        if result.sha1:
+            output.append(self._white(f'SHA1: {result.sha1}'))
+        if result.md5:
+            output.append(self._white(f'MD5: {result.md5}'))
         output.append(self._white(f'Rule: {result.rule_name}'))
         if result.malware_family:
             output.append(self._red(f'Malware Family: {result.malware_family}'))