def namespace_ready_tx( *args, **kw ):
"""
Make an unsigned namespace ready transaction
Raise ValueError if there are not enough inputs to make the transaction
"""
inputs, outputs = tx_namespace_ready( *args, **kw )
return pybitcoin.serialize_transaction( inputs, outputs )
def revoke_tx(*args, **kw):
"""
Make an unsigned revoke transaction
Raise ValueError if there are not enough inputs to make the transaction
"""
inputs, outputs = tx_revoke(*args, **kw)
return pybitcoin.serialize_transaction(inputs, outputs)
def broadcast(namespace_id,
private_key,
blockchain_client,
testset=False,
tx_only=False,
blockchain_broadcaster=None):
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
nulldata = build(namespace_id, testset=testset)
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(
private_key, blockchain_client)
# OP_RETURN outputs
outputs = make_op_return_outputs(nulldata,
inputs,
from_address,
fee=DEFAULT_OP_RETURN_FEE,
format='hex')
if tx_only:
unsigned_tx = serialize_transaction(inputs, outputs)
return {'unsigned_tx': signed_tx}
else:
signed_tx = tx_serialize_and_sign(inputs, outputs, private_key_obj)
response = broadcast_transaction(signed_tx, blockchain_broadcaster)
response.update({'data': nulldata})
return response
def namespace_reveal_tx(*args, **kw):
"""
Make an unsigned namespace reveal transaction
Raise ValueError if there are not enough inputs to make the transaction
"""
inputs, outputs = tx_namespace_reveal(*args, **kw)
return pybitcoin.serialize_transaction(inputs, outputs)
def broadcast(name, recipient_address, update_hash, private_key, blockchain_client, blockchain_broadcaster=None, tx_only=False, testset=False):
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
nulldata = build(name, testset=testset)
# convert update_hash from a hex string so it looks like an address
update_hash_b58 = b58check_encode( unhexlify(update_hash) )
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
# NAME_IMPORT outputs
outputs = make_outputs(nulldata, inputs, recipient_address, from_address, update_hash_b58, format='hex')
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs, private_key_obj, blockchain_broadcaster)
# response = {'success': True }
response.update({'data': nulldata})
# return the response
return response
def broadcast(name, recipient_address, update_hash, private_key, blockchain_client, blockchain_broadcaster=None, tx_only=False, testset=False):
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
nulldata = build(name, testset=testset)
# convert update_hash from a hex string so it looks like an address
update_hash_b58 = b58check_encode( unhexlify(update_hash) )
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
# NAME_IMPORT outputs
outputs = make_outputs(nulldata, inputs, recipient_address, from_address, update_hash_b58, format='hex')
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs, private_key_obj, blockchain_broadcaster)
# response = {'success': True }
response.update({'data': nulldata})
# return the response
return response
def revoke_tx( *args, **kw ):
"""
Make an unsigned revoke transaction
Raise ValueError if there are not enough inputs to make the transaction
"""
inputs, outputs = tx_revoke( *args, **kw )
return pybitcoin.serialize_transaction( inputs, outputs )
def broadcast(name, private_key, register_addr, blockchain_client, renewal_fee=None, blockchain_broadcaster=None, tx_only=False, user_public_key=None, subsidy_public_key=None, testset=False):
# sanity check
if subsidy_public_key is not None:
# if subsidizing, we're only giving back a tx to be signed
tx_only = True
if subsidy_public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
change_inputs = None
private_key_obj = None
subsidized_renewal = False
if subsidy_public_key is not None:
# subsidizing
pubk = BitcoinPublicKey( subsidy_public_key )
if user_public_key is not None and renewal_fee is not None:
# renewing, and subsidizing the renewal
from_address = BitcoinPublicKey( user_public_key ).address()
subsidized_renewal = True
else:
# registering or renewing under the subsidy key
from_address = pubk.address()
change_inputs = get_unspents( from_address, blockchain_client )
elif private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey( private_key ).public_key()
public_key = pubk.to_hex()
# get inputs and from address using private key
private_key_obj, from_address, change_inputs = analyze_private_key(private_key, blockchain_client)
nulldata = build(name, testset=testset)
outputs = make_outputs(nulldata, change_inputs, register_addr, from_address, renewal_fee=renewal_fee, pay_fee=(not subsidized_renewal), format='hex')
if tx_only:
unsigned_tx = serialize_transaction( change_inputs, outputs )
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(change_inputs, outputs, private_key_obj, blockchain_broadcaster)
response.update({'data': nulldata})
return response
def broadcast(name,
private_key,
blockchain_client,
testset=False,
blockchain_broadcaster=None,
user_public_key=None,
tx_only=False):
# sanity check
pay_fee = True
if user_public_key is not None:
pay_fee = False
tx_only = True
if user_public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
inputs = None
private_key_obj = None
if user_public_key is not None:
# subsidizing
pubk = BitcoinPublicKey(user_public_key)
from_address = pubk.address()
inputs = get_unspents(from_address, blockchain_client)
elif private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey(private_key).public_key()
public_key = pubk.to_hex()
private_key_obj, from_address, inputs = analyze_private_key(
private_key, blockchain_client)
nulldata = build(name, testset=testset)
outputs = make_outputs(nulldata, inputs, from_address, pay_fee=pay_fee)
if tx_only:
unsigned_tx = serialize_transaction(inputs, outputs)
return {'unsigned_tx': unsigned_tx}
else:
signed_tx = tx_serialize_and_sign(inputs, outputs, private_key_obj)
response = broadcast_transaction(signed_tx, blockchain_broadcaster)
response.update({'data': nulldata})
return response
def broadcast(message_hash, private_key, blockchain_client, testset=False, blockchain_broadcaster=None, user_public_key=None, tx_only=False):
# sanity check
pay_fee = True
if user_public_key is not None:
pay_fee = False
tx_only = True
if user_public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if len(message_hash) != 40:
raise Exception("Invalid message hash: not 20 bytes")
if not is_hex( message_hash ):
raise Exception("Invalid message hash: not hex")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
inputs = None
private_key_obj = None
if user_public_key is not None:
# subsidizing
pubk = BitcoinPublicKey( user_public_key )
from_address = pubk.address()
inputs = get_unspents( from_address, blockchain_client )
elif private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey( private_key ).public_key()
public_key = pubk.to_hex()
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
nulldata = build(message_hash, testset=testset)
outputs = make_outputs( nulldata, inputs, from_address, pay_fee=pay_fee )
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {'unsigned_tx': unsigned_tx}
else:
signed_tx = tx_serialize_and_sign( inputs, outputs, private_key_obj )
response = broadcast_transaction( signed_tx, blockchain_broadcaster )
response.update({'data': nulldata})
return response
def broadcast(name_list, private_key, register_addr_list, consensus_hash, blockchain_client, fee, \
blockchain_broadcaster=None, subsidy_public_key=None, tx_only=False, testset=False):
"""
Builds and broadcasts a preorder transaction.
@subsidy_public_key: if given, the public part of the subsidy key
"""
if subsidy_public_key is not None:
# subsidizing, and only want the tx
tx_only = True
# sanity check
if subsidy_public_key is None and private_key is None:
raise Exception("Missing both client public and private key")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None # change address
inputs = None
private_key_obj = None
script_pubkey = None # to be mixed into preorder hash
if subsidy_public_key is not None:
# subsidizing
pubk = BitcoinPublicKey( subsidy_public_key )
from_address = BitcoinPublicKey( subsidy_public_key ).address()
inputs = get_unspents( from_address, blockchain_client )
script_pubkey = get_script_pubkey( subsidy_public_key )
else:
# ordering directly
pubk = BitcoinPrivateKey( private_key ).public_key()
public_key = pubk.to_hex()
script_pubkey = get_script_pubkey( public_key )
# get inputs and from address using private key
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
nulldata = build( name_list, script_pubkey, register_addr_list, consensus_hash, testset=testset)
outputs = make_outputs(nulldata, inputs, from_address, fee, format='hex')
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs, private_key_obj, blockchain_client)
response.update({'data': nulldata})
return response
def broadcast(name, data_hash, consensus_hash, private_key, blockchain_client, blockchain_broadcaster=None, tx_only=False, user_public_key=None, testset=False):
"""
Write a name update into the blockchain.
Returns a JSON object with 'data' set to the nulldata and 'transaction_hash' set to the transaction hash on success.
"""
# sanity check
pay_fee = True
if user_public_key is not None:
pay_fee = False
tx_only = True
if user_public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
inputs = None
private_key_obj = None
if user_public_key is not None:
# subsidizing
pubk = BitcoinPublicKey( user_public_key )
from_address = pubk.address()
# get inputs from utxo provider
inputs = get_unspents( from_address, blockchain_client )
elif private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey( private_key ).public_key()
public_key = pubk.to_hex()
# get inputs and from address using private key
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
nulldata = build(name, consensus_hash, data_hash=data_hash, testset=testset)
outputs = make_outputs( nulldata, inputs, from_address, pay_fee=pay_fee )
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {'unsigned_tx': unsigned_tx}
else:
signed_tx = tx_serialize_and_sign( inputs, outputs, private_key_obj )
response = broadcast_transaction( signed_tx, blockchain_broadcaster )
response.update({'data': nulldata})
return response
def broadcast(namespace_id,
register_addr,
consensus_hash,
private_key,
blockchain_client,
fee,
pay_fee=True,
tx_only=False,
testset=False,
blockchain_broadcaster=None):
"""
Propagate a namespace.
Arguments:
namespace_id human-readable (i.e. base-40) name of the namespace
register_addr the addr of the key that will reveal the namespace (mixed into the preorder to prevent name preimage attack races)
private_key the Bitcoin address that created this namespace, and can populate it.
"""
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
pubkey_hex = BitcoinPrivateKey(private_key).public_key().to_hex()
script_pubkey = get_script_pubkey(pubkey_hex)
nulldata = build(namespace_id,
script_pubkey,
register_addr,
consensus_hash,
testset=testset)
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(
private_key, blockchain_client)
# build custom outputs here
outputs = make_outputs(nulldata, inputs, from_address, fee, format='hex')
if tx_only:
unsigned_tx = serialize_transaction(inputs, outputs)
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs,
private_key_obj,
blockchain_broadcaster)
# response = {'success': True }
response.update({'data': nulldata})
return response
def broadcast(name, private_key, register_addr, consensus_hash, blockchain_client, fee, blockchain_broadcaster=None, tx_only=False, pay_fee=True, public_key=None, testset=False):
"""
Builds and broadcasts a preorder transaction.
"""
# sanity check
if public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
inputs = None
private_key_obj = None
if private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey( private_key ).public_key()
public_key = pubk.to_hex()
# get inputs and from address using private key
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
elif public_key is not None:
# subsidizing
pubk = BitcoinPublicKey( public_key )
from_address = pubk.address()
# get inputs from utxo provider
inputs = get_unspents( from_address, blockchain_client )
script_pubkey = get_script_pubkey( public_key )
nulldata = build( name, script_pubkey, register_addr, consensus_hash, testset=testset)
# build custom outputs here
outputs = make_outputs(nulldata, inputs, from_address, fee, pay_fee=pay_fee, format='hex')
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs, private_key_obj, blockchain_client)
response.update({'data': nulldata})
return response
def broadcast(
namespace_id,
register_addr,
consensus_hash,
private_key,
blockchain_client,
fee,
pay_fee=True,
tx_only=False,
testset=False,
blockchain_broadcaster=None,
):
"""
Propagate a namespace.
Arguments:
namespace_id human-readable (i.e. base-40) name of the namespace
register_addr the addr of the key that will reveal the namespace (mixed into the preorder to prevent name preimage attack races)
private_key the Bitcoin address that created this namespace, and can populate it.
"""
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
pubkey_hex = BitcoinPrivateKey(private_key).public_key().to_hex()
script_pubkey = get_script_pubkey(pubkey_hex)
nulldata = build(namespace_id, script_pubkey, register_addr, consensus_hash, testset=testset)
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
# build custom outputs here
outputs = make_outputs(nulldata, inputs, from_address, fee, format="hex")
if tx_only:
unsigned_tx = serialize_transaction(inputs, outputs)
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs, private_key_obj, blockchain_broadcaster)
# response = {'success': True }
response.update({"data": nulldata})
return response
def broadcast(name, private_key, blockchain_client, testset=False, blockchain_broadcaster=None, pay_fee=True, public_key=None, tx_only=False):
# sanity check
if public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
inputs = None
private_key_obj = None
if private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey( private_key ).public_key()
public_key = pubk.to_hex()
# get inputs and from address using private key
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
elif public_key is not None:
# subsidizing
pubk = BitcoinPublicKey( public_key )
from_address = pubk.address()
# get inputs from utxo provider
inputs = get_unspents( from_address, blockchain_client )
nulldata = build(name, testset=testset)
outputs = make_op_return_outputs( nulldata, inputs, from_address, fee=DEFAULT_OP_RETURN_FEE, format='hex' )
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {'unsigned_tx': unsigned_tx}
else:
signed_tx = tx_serialize_and_sign( inputs, outputs, private_key_obj )
response = broadcast_transaction( signed_tx, blockchain_broadcaster, format='hex')
response.update({'data': nulldata})
return response
def broadcast( namespace_id, reveal_addr, lifetime, coeff, base_cost, bucket_exponents, nonalpha_discount, no_vowel_discount, private_key, blockchain_client, tx_only=False, blockchain_broadcaster=None, testset=False ):
"""
Propagate a namespace.
Arguments:
namespace_id human-readable (i.e. base-40) name of the namespace
reveal_addr address to own this namespace until it is ready
lifetime: the number of blocks for which names will be valid (pass a negative value for "infinite")
coeff: cost multipler
base_cost: the base cost (i.e. cost of a 1-character name), in satoshis
bucket_exponents: bucket cost exponents to which to raise the base cost
nonalpha_discount: discount multipler for non-alpha-character names
no_vowel_discount: discount multipler for no-vowel names
"""
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
nulldata = build( namespace_id, BLOCKSTORE_VERSION, reveal_addr, lifetime, coeff, base_cost, bucket_exponents, nonalpha_discount, no_vowel_discount, testset=testset )
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
# build custom outputs here
outputs = make_outputs(nulldata, inputs, reveal_addr, from_address, format='hex')
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs, private_key_obj, blockchain_broadcaster)
# response = {'success': True }
response.update({'data': nulldata})
return response
def broadcast( namespace_id, reveal_addr, lifetime, coeff, base_cost, bucket_exponents, nonalpha_discount, no_vowel_discount, private_key, blockchain_client, tx_only=False, blockchain_broadcaster=None, testset=False ):
"""
Propagate a namespace.
Arguments:
namespace_id human-readable (i.e. base-40) name of the namespace
reveal_addr address to own this namespace until it is ready
lifetime: the number of blocks for which names will be valid (pass a negative value for "infinite")
coeff: cost multipler
base_cost: the base cost (i.e. cost of a 1-character name), in satoshis
bucket_exponents: bucket cost exponents to which to raise the base cost
nonalpha_discount: discount multipler for non-alpha-character names
no_vowel_discount: discount multipler for no-vowel names
"""
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
nulldata = build( namespace_id, BLOCKSTORE_VERSION, reveal_addr, lifetime, coeff, base_cost, bucket_exponents, nonalpha_discount, no_vowel_discount, testset=testset )
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
# build custom outputs here
outputs = make_outputs(nulldata, inputs, reveal_addr, from_address, format='hex')
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs, private_key_obj, blockchain_broadcaster)
# response = {'success': True }
response.update({'data': nulldata})
return response
def broadcast( namespace_id, private_key, blockchain_client, testset=False, tx_only=False, blockchain_broadcaster=None ):
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
nulldata = build( namespace_id, testset=testset )
# get inputs and from address
private_key_obj, from_address, inputs = analyze_private_key(private_key, blockchain_client)
# OP_RETURN outputs
outputs = make_op_return_outputs( nulldata, inputs, from_address, fee=DEFAULT_OP_RETURN_FEE, format='hex' )
if tx_only:
unsigned_tx = serialize_transaction( inputs, outputs )
return {'unsigned_tx': signed_tx}
else:
signed_tx = tx_serialize_and_sign( inputs, outputs, private_key_obj )
response = broadcast_transaction( signed_tx, blockchain_broadcaster )
response.update({'data': nulldata})
return response
def broadcast(name,
private_key,
register_addr,
consensus_hash,
blockchain_client,
fee,
blockchain_broadcaster=None,
tx_only=False,
pay_fee=True,
public_key=None,
testset=False):
"""
Builds and broadcasts a preorder transaction.
"""
# sanity check
if public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
inputs = None
private_key_obj = None
if private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey(private_key).public_key()
public_key = pubk.to_hex()
# get inputs and from address using private key
private_key_obj, from_address, inputs = analyze_private_key(
private_key, blockchain_client)
elif public_key is not None:
# subsidizing
pubk = BitcoinPublicKey(public_key)
from_address = pubk.address()
# get inputs from utxo provider
inputs = get_unspents(from_address, blockchain_client)
script_pubkey = get_script_pubkey(public_key)
nulldata = build(name,
script_pubkey,
register_addr,
consensus_hash,
testset=testset)
# build custom outputs here
outputs = make_outputs(nulldata,
inputs,
from_address,
fee,
pay_fee=pay_fee,
format='hex')
if tx_only:
unsigned_tx = serialize_transaction(inputs, outputs)
return {"unsigned_tx": unsigned_tx}
else:
# serialize, sign, and broadcast the tx
response = serialize_sign_and_broadcast(inputs, outputs,
private_key_obj,
blockchain_client)
response.update({'data': nulldata})
return response
def broadcast(name,
data_hash,
consensus_hash,
private_key,
blockchain_client,
blockchain_broadcaster=None,
tx_only=False,
user_public_key=None,
testset=False):
"""
Write a name update into the blockchain.
Returns a JSON object with 'data' set to the nulldata and 'transaction_hash' set to the transaction hash on success.
"""
# sanity check
pay_fee = True
if user_public_key is not None:
pay_fee = False
tx_only = True
if user_public_key is None and private_key is None:
raise Exception("Missing both public and private key")
if not tx_only and private_key is None:
raise Exception("Need private key for broadcasting")
if blockchain_broadcaster is None:
blockchain_broadcaster = blockchain_client
from_address = None
inputs = None
private_key_obj = None
if user_public_key is not None:
# subsidizing
pubk = BitcoinPublicKey(user_public_key)
from_address = pubk.address()
# get inputs from utxo provider
inputs = get_unspents(from_address, blockchain_client)
elif private_key is not None:
# ordering directly
pubk = BitcoinPrivateKey(private_key).public_key()
public_key = pubk.to_hex()
# get inputs and from address using private key
private_key_obj, from_address, inputs = analyze_private_key(
private_key, blockchain_client)
nulldata = build(name,
consensus_hash,
data_hash=data_hash,
testset=testset)
outputs = make_outputs(nulldata, inputs, from_address, pay_fee=pay_fee)
if tx_only:
unsigned_tx = serialize_transaction(inputs, outputs)
return {'unsigned_tx': unsigned_tx}
else:
signed_tx = tx_serialize_and_sign(inputs, outputs, private_key_obj)
response = broadcast_transaction(signed_tx, blockchain_broadcaster)
response.update({'data': nulldata})
return response
