diff --git a/chainlib/eth/owned.py b/chainlib/eth/owned.py
deleted file mode 100644
index 9178d76..0000000
--- a/chainlib/eth/owned.py
+++ /dev/null
@@ -1,73 +0,0 @@
-# external imports
-from hexathon import (
-        add_0x,
-    )
-
-# local imports
-from chainlib.eth.contract import (
-        ABIContractEncoder,
-        ABIContractDecoder,
-        ABIContractType,
-        abi_decode_single,
-    )
-from chainlib.jsonrpc import jsonrpc_template
-from chainlib.eth.tx import (
-        TxFactory,
-        TxFormat,
-        )
-from chainlib.eth.constant import ZERO_ADDRESS
-
-class EIP173(TxFactory):
-
-    def transfer_ownership(self, contract_address, sender_address, new_owner_address, tx_format=TxFormat.JSONRPC):
-        enc = ABIContractEncoder()
-        enc.method('transferOwnership')
-        enc.typ(ABIContractType.ADDRESS)
-        enc.address(new_owner_address)
-        data = add_0x(enc.get())
-        tx = self.template(sender_address, contract_address, use_nonce=True)
-        tx = self.set_code(tx, data)
-        tx = self.finalize(tx, tx_format)
-        return tx
-
-
-    def owner(self, contract_address, sender_address=ZERO_ADDRESS):
-        o = jsonrpc_template()
-        o['method'] = 'eth_call'
-        enc = ABIContractEncoder()
-        enc.method('owner')
-        data = add_0x(enc.get())
-        tx = self.template(sender_address, contract_address)
-        tx = self.set_code(tx, data)
-        o['params'].append(self.normalize(tx))
-        o['params'].append('latest')
-        return o
-
-
-    @classmethod
-    def parse_owner(self, v):
-        return abi_decode_single(ABIContractType.ADDRESS, v)
-
-
-class Owned(EIP173):
-
-    def accept_ownership(self, contract_address, sender_address, tx_format=TxFormat.JSONRPC):
-        enc = ABIContractEncoder()
-        enc.method('acceptOwnership')
-        data = add_0x(enc.get())
-        tx = self.template(sender_address, contract_address, use_nonce=True)
-        tx = self.set_code(tx, data)
-        tx = self.finalize(tx, tx_format)
-        return tx
-
-
-    def take_ownership(self, contract_address, sender_address, resource_address, tx_format=TxFormat.JSONRPC):
-        enc = ABIContractEncoder()
-        enc.method('takeOwnership')
-        enc.typ(ABIContractType.ADDRESS)
-        enc.address(resource_address)
-        data = add_0x(enc.get())
-        tx = self.template(sender_address, contract_address, use_nonce=True)
-        tx = self.set_code(tx, data)
-        tx = self.finalize(tx, tx_format)
-        return tx
diff --git a/tests/test_owned.py b/tests/test_owned.py
deleted file mode 100644
index 61a6ad9..0000000
--- a/tests/test_owned.py
+++ /dev/null
@@ -1,131 +0,0 @@
-# standard imports
-import unittest
-import os
-import logging
-
-# local imports
-from chainlib.eth.unittest.ethtester import EthTesterCase
-from chainlib.eth.nonce import RPCNonceOracle
-from chainlib.eth.gas import OverrideGasOracle
-from chainlib.connection import RPCConnection
-from chainlib.eth.tx import (
-        TxFactory,
-        receipt,
-        )
-from chainlib.eth.owned import (
-        EIP173,
-        Owned,
-        )
-
-logging.basicConfig(level=logging.DEBUG)
-logg = logging.getLogger()
-
-script_dir = os.path.realpath(os.path.dirname(__file__))
-
-
-class TestOwned(EthTesterCase):
-
-    def setUp(self):
-        super(TestOwned, self).setUp()
-        self.conn = RPCConnection.connect(self.chain_spec, 'default')
-        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
-
-        f = open(os.path.join(script_dir, 'testdata', 'Owned.bin'))
-        code = f.read()
-        f.close()
-
-        txf = TxFactory(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-        tx = txf.template(self.accounts[0], None, use_nonce=True)
-        tx = txf.set_code(tx, code)
-        (tx_hash_hex, o) = txf.build(tx)
-
-        r = self.conn.do(o)
-        logg.debug('deployed with hash {}'.format(r))
-
-        o = receipt(tx_hash_hex)
-        r = self.conn.do(o)
-        self.address = r['contract_address']
-
-    
-    def test_owned(self):
-        c = EIP173(self.chain_spec)
-        o = c.owner(self.address, sender_address=self.accounts[0])
-        r = self.conn.do(o)
-        owner = c.parse_owner(r)
-        self.assertEqual(owner, self.accounts[0])
-
-
-    def test_transfer_ownership(self):
-        nonce_oracle = RPCNonceOracle(self.accounts[2], self.conn)
-        gas_oracle = OverrideGasOracle(limit=8000000, conn=self.conn)
-        c = EIP173(self.chain_spec, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, signer=self.signer)
-        (tx_hash_hex, o) = c.transfer_ownership(self.address, self.accounts[2], self.accounts[1])
-        r = self.conn.do(o)
-
-        o = receipt(tx_hash_hex)
-        r = self.conn.do(o)
-        self.assertEqual(r['status'], 0)
-        
-        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
-        c = EIP173(self.chain_spec, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, signer=self.signer)
-        (tx_hash_hex, o) = c.transfer_ownership(self.address, self.accounts[0], self.accounts[1])
-        r = self.conn.do(o)
-
-        o = receipt(tx_hash_hex)
-        r = self.conn.do(o)
-        self.assertEqual(r['status'], 1)
-       
-
-    def test_accept_ownership(self):
-        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
-        gas_oracle = OverrideGasOracle(limit=8000000, conn=self.conn)
-        c = Owned(self.chain_spec, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, signer=self.signer)
-        (tx_hash_hex, o) = c.transfer_ownership(self.address, self.accounts[0], self.accounts[1])
-        r = self.conn.do(o)
-
-        nonce_oracle = RPCNonceOracle(self.accounts[2], self.conn)
-        c = Owned(self.chain_spec, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, signer=self.signer)
-        (tx_hash_hex, o) = c.accept_ownership(self.address, self.accounts[2])
-        r = self.conn.do(o)
-
-        o = receipt(tx_hash_hex)
-        r = self.conn.do(o)
-        self.assertEqual(r['status'], 0)
-
-        nonce_oracle = RPCNonceOracle(self.accounts[1], self.conn)
-        c = Owned(self.chain_spec, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, signer=self.signer)
-        (tx_hash_hex, o) = c.accept_ownership(self.address, self.accounts[1])
-        r = self.conn.do(o)
-
-        o = receipt(tx_hash_hex)
-        r = self.conn.do(o)
-        self.assertEqual(r['status'], 1)
-
-        o = c.owner(self.address, sender_address=self.accounts[0])
-        r = self.conn.do(o)
-        owner = c.parse_owner(r)
-        self.assertEqual(owner, self.accounts[1])
-
-
-    def test_take_ownership(self):
-        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
-        gas_oracle = OverrideGasOracle(limit=8000000, conn=self.conn)
-        c = Owned(self.chain_spec, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, signer=self.signer)
-        (tx_hash_hex, o) = c.transfer_ownership(self.address, self.accounts[0], self.address)
-        r = self.conn.do(o)
-
-        (tx_hash_hex, o) = c.take_ownership(self.address, self.accounts[0], self.address)
-        r = self.conn.do(o)
-
-        o = receipt(tx_hash_hex)
-        r = self.conn.do(o)
-        self.assertEqual(r['status'], 1)
-
-        o = c.owner(self.address, sender_address=self.accounts[0])
-        r = self.conn.do(o)
-        owner = c.parse_owner(r)
-        self.assertEqual(owner, self.address)
-
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/tests/testdata/Owned.bin b/tests/testdata/Owned.bin
deleted file mode 100644
index 788a5d9..0000000
--- a/tests/testdata/Owned.bin
+++ /dev/null
@@ -1 +0,0 @@
-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
\ No newline at end of file
diff --git a/tests/testdata/Owned.sol b/tests/testdata/Owned.sol
deleted file mode 100644
index 90846ce..0000000
--- a/tests/testdata/Owned.sol
+++ /dev/null
@@ -1,32 +0,0 @@
-pragma solidity ^0.8.0;
-
-contract Owned {
-	address public owner;
-	address newOwner;
-
-	constructor() public {
-		owner = msg.sender;	
-	}
-
-	function transferOwnership(address _newOwner) public returns (bool) {
-		require(owner == msg.sender);
-		newOwner = _newOwner;
-		return true;
-	}
-
-	function acceptOwnership() public returns (bool) {
-		require(newOwner == msg.sender);
-		owner = msg.sender;
-		newOwner = address(0);
-		return true;
-	}
-
-	function takeOwnership(address _ownable) public returns (bool) {
-		bool ok;
-		bytes memory result;
-
-		(ok, result) = _ownable.call(abi.encodeWithSignature("acceptOwnership()"));
-		require(ok, "ERR_ACCEPT");
-		return true;
-	}
-}