diff --git a/src/apps/common/sign.pseudo b/src/apps/common/sign.pseudo
deleted file mode 100644
index f340a32a..00000000
--- a/src/apps/common/sign.pseudo
+++ /dev/null
@@ -1,91 +0,0 @@
-from ..common.seed import get_root_node
-
-import coins
-
-async def getPrevTxOutputValue(prev_hash, prev_index):
-
-    # STAGE_REQUEST_2_PREV_META
-    tx = await TxRequest(type=META, hash=prev_hash)
-    tx_hash = TxHash()
-
-    # STAGE_REQUEST_2_PREV_INPUT
-    msgs = ((i, TxRequest(type=INPUT, hash=prev_hash, index=i)) for i in range(tx.inputs_count))
-    for _, tx_input in await msgs:
-        tx_hash.update(serialize(tx_input))
-
-    # STAGE_REQUEST_2_PREV_OUTPUT
-    msgs = ((i, TxRequest(type=OUTPUT, hash=prev_hash, index=i)) for i in range(tx.outputs_count))
-    for o, tx_output in await msgs:
-        tx_hash.update(serialize(tx_output))
-        if o == prev_index:
-            total_spend += tx_output.value
-
-    # TODO: EXTRADATA
-
-    if tx_hash.digest() != prev_hash:
-        raise Exception('PrevTx mismatch')
-
-
-async def doSignTx(SignTx tx):
-
-    session_id = 0
-    coin = coins.by_name(tx.coin_name)
-    node = await get_root_node(session_id)
-
-    ins = tx.inputs_count
-    outs = tx.outputs_count
-    ver = tx.version
-    lock = tx.lock_time
-
-    total_spend = 0
-
-    # STAGE_REQUEST_1_INPUT
-    checktx_hash = TxHash()
-    msgs1 = ((i, TxRequest(type=INPUT, index=i)) for i in range(ins))
-    for _, input in await msgs1:
-        checktx_hash.update(serialize(input))
-        total_spend += await getTxPrevOutputValue(input.prev_hash, input.prev_index)
-
-    # STAGE_REQUEST_3_OUTPUT
-    msgs1 = ((i, TxRequest(type=OUTPUT, index=i)) for i in range(outs))
-    for output in await msgs1:
-        checktx_hash.update(serialize(output))
-        # display output
-        # confirm output
-
-    # Check tx fee
-    # Ask for confirmation
-
-    signed_tx = TxHash()
-    checked_tx = TxHash()
-
-    msgs1 = ((i, TxRequest(type=INPUT, index=i)) for i in range(ins))
-    for i1, input1 in await msgs1:
-
-        # STAGE_REQUEST_4_INPUT
-        msgs2 = ((i, TxRequest(type=INPUT, index=i)) for i in range(ins))
-        for i2, input2 in await msgs2:
-            if i1 == i2:
-                signing_key = extract_key()
-                fill_scriptsig_with_signature()
-
-            signed_tx.update(serialize(input1))
-            checked_tx.update(serialize(input1))
-
-        # STAGE_REQUEST_4_OUTPUT
-        msgs2 = ((i, TxRequest(type=OUTPUT, index=i)) for i in range(outs))
-        for _, output in await msgs2:
-            signed_tx.update(serialize(output))
-            checked_tx.update(serialize(output))
-
-        if check_tx.digest() != checked_tx.digest():
-            raise Exception('CheckTx mismatch')
-
-        yield sign(signing_key, signed_tx.digest())
-
-    # STAGE_REQUEST_5_OUTPUT
-    msgs1 = ((i, TxRequest(type=OUTPUT, index=i)) for i in range(outs))
-    for _, output in await msgs1:
-        if output.is_change_address():
-            output.rewrite_change()
-        yield output