From: dkb1
Sent: October 15, 2016
Subject: File Number SR-BatsBZX-2016-30

Securities and Exchange Commission:

I previously submitted comment regarding File Number SR-BatsBZX-2016-30 and have the following addendum in support of my request that the Commission delay approval. Please forgive my continuing addenda as it is hard to remember all of bitcoin's problems in one day.

1. Bitcoin Core Software, which is relied on for all bitcoin software is experimental. If you download he software and click on "About Bitcoin Core" you will see:
Bitcoin Core version v0.13.0 (32-bit)

Copyright (C) 2009-2016 The Bitcoin Core developers

Please contribute if you find Bitcoin Core useful. Visit for further information about the software.
The source code is available from

This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING or

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard.

I am not sure an experiment belongs on a US exchange.


Thank you.

Dana K. Barish