Over the past few months there has been significant attention within the bitcoin ecosystem and beyond on what is commonly referred to as the “block size issue” — the size and scale of bitcoin blocks. There is a pressing need for an inclusive roadmap that takes into account the needs of businesses and all stakeholders.

As a community of bitcoin businesses, exchanges, wallets, miners, and mining pools, we have come together to chart an effective path to resolve this challenge and agreed on five positions we hope will guide the larger community as we move forward together.

The following are five key points that we have all agreed on.

We see the need for a modest block size increase in order to move the Bitcoin project forward, but we would like to do it with minimal risk, taking the safest and most balanced route possible. SegWit is almost ready and we support its deployment as a step in scaling. We think any contentious hard-fork contains additional risks and potentially may result in two incompatible blockchain versions, if improperly implemented. To avoid potential losses for all bitcoin users, we need to minimize the risks. It is our firm belief that a contentious hard-fork right now would be extremely detrimental to the bitcoin ecosystem. In the next 3 weeks, we need the Bitcoin Core developers to work with us and clarify the roadmap with respect to a future hard-fork which includes an increase of the block size. Currently we are in discussions to determine the next best steps. We are as a matter of principle against unduly rushed or controversial hard-forks irrespective of the team proposing and we will not run such code on production systems nor mine any block from that hard-fork. We urge everyone to act rationally and hold off on making any decision to run a contentious hard-fork (Classic/XT or any other). We must ensure that future changes to code relating to consensus rules are done in a safe and balanced way. We also believe that hard-forks should only be activated if they have widespread consensus and long enough deployment timelines. The deployment of hard-forks without widespread consensus is dangerous and has the potential to cause trust and monetary losses. We strongly encourage all bitcoin contributors to come together and resolve their differences to collaborate on the scaling roadmap. Divisions in the bitcoin community can only be mended if the developers and contributors can take the first step and cooperate with each other.

Our shared goal is the success of bitcoin. Bitcoin is strong and transformational. By working together, we will ensure that its future is bright.

Together, we are:

Phil Potter

Chief Strategy Officer

Bitfinex

Valery Vavilov

CEO

BitFury

Alex Petrov

CIO

BitFury

James Hilliard

Pool/Farm Admin

BitmainWarranty

Yoshi Goto

CEO

BitmainWarranty

Alex Shultz

CEO

BIT-X Exchange

Bobby Lee

CEO

BTCC

Samson Mow

COO

BTCC

Robin Yao

CTO

BTCT & BW

Ronny Boesing

CEO

CCEDK ApS

Obi Nwosu

Managing Director

Coinfloor

Mark Lamb

Founder

Coinfloor

Wang Chun

Admin

F2Pool

Marco Streng

CEO

Genesis Mining

Marco Krohn

CFO

Genesis Mining

Oleksandr Lutskevych

CEO

GHash.IO & CEX.IO

Lawrence Nahum

CEO

GreenAddress

Eric Larchevêque

CEO

Ledger

Jack Liao

CEO

LIGHTNINGASIC & BitExchange

Charlie Lee

Creator

Litecoin

Guy Corem

CEO

Spondoolies-Tech

Davide Barbieri

CTO

TheRockTrading

Michael Cao

CEO

Zoomhash

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