On August 1st, a group of users and some businesses have performed a non-compatible upgrade to the network, raising the blocksize limit to 8MB and removing SegWit. As this upgrade does not have a wide backing of the network, this “hard fork” would split the Bitcoin network in two. As a result, we are with the Bitcoin with activated SegWit (through BIP91/BIP141) and its clone, dubbed Bcash (Bitcoin Cash/BCH).

As this is a chain-split, Bcash (Bitcoin Cash) will share its entire transaction history with Bitcoin up until the point of the split, with the history diverging after the split. This means that for whatever amount of bitcoins you had before the split, you will end up having that same amount of Bcash. Moreover, as Bitcoin and Bcash essentially become two separate currencies, they will be independent of each other. You will be able to spend your Bcash coins without spending bitcoin.

What do I need to do to claim my Bitcoin Cash/Bcash?

Bcash (BCH) has implemented the necessary protection against replay attacks, meaning TREZOR can support the currency safely.
We will provide an interface, accessible from TREZOR Wallet, where you can access and safely claim your Bcash coins. You will be prompted by TREZOR Wallet once you select “Bcash” in the currency selector.
*Should I want Bcash?
Whether or not do you want Bcash is entirely up to you. However, since they are basically “free coins”, you may claim them and then exchange them for a different currency. (For instance, ViaBTC offers BCH to BTC exchanges.)

How will Bcash look in TREZOR Wallet?

Bcash (Bitcoin Cash) will be labelled as BCH by TREZOR to avoid any confusions with Bitcoin or other currencies. It is, however, possible that some services might label Bcash as Bitcoin Cash or BCC.

These Bitcoin Exchanges and Wallets Are Supporting Bitcoin Cash

The U.S. is the world’s second largest bitcoin exchange market with a daily trading volume of $97 million with China taking the top spot. Only two of the top five bitcoin exchanges and trading platforms in the U.S., however, are supporting Bitcoin Cash crediting and withdrawals. Bitfinex and Kraken announced on July 27, 2017, that all accounts will be credited with BCH in the near future while Bitstamp, Gemini and GDAX have no plans on supporting BCH
At 6:35 PM GMT on August 1, Kraken announced that all of its accounts have been successfully credited with BCH. Around the same time, Bitfinex stated that its development team is also in the process of crediting BCH to all accounts but that no account had been credited yet.

In contrast, Bitstamp, Gemini and GDAX explicitly stated that the three exchanges will not support BCH. Both GDAX and Bitstamp addressed the issue by describing BCH as an alternative cryptocurrency (altcoin) and that they are not in a position to support the digital currency.

“It is important to clarify that Bitstamp would not be in a position to support Bitcoin Cash [BCH], the coin associated with the Bitcoin Cash proposal. In Bitstamp’s view, [BCH] is an alt-coin and the decision to list BCC tokens remains at our sole discretion at all times,” said the Bitstamp team.

In an interview with bitcoin analyst Tone Vays, Jimmy Song, principal architect at Paxos, suggested that, in terms of security, it is not safe to immediately withdraw or credit BCH right after the fork.

Hence, it is still possible that exchanges like GDAX, Gemini and Bitstamp could decide to credit accounts with BCH in the future, rather than rushing into the development of a specific system to enable BCH withdrawals immediately after the fork.
All Bitcoin Exchanges in China Support BCH Withdrawal, Majority to List BTC/BCH Trading Pair
Earlier this week, local Chinese cryptocurrency news agency CnLedger offered a chart demonstrating the decision of all Chinese bitcoin exchanges in regard to crediting and supporting Bitcoin Cash. All bitcoin exchanges in China will allocate BCH to users; in fact, the three largest bitcoin exchanges in the country, including OKCoin, Huobi and BTCChina, have already announced that they will list the BCH/BTC trading pair on their trading platforms.

Two of Three Major South Korean Bitcoin Exchanges Will Support Bitcoin Cash
Bithumb, South Korea’s largest exchange with over 57 percent of the South Korean bitcoin exchange market share, and Korbit, the country’s second largest bitcoin exchange, will support Bitcoin Cash. Interestingly, similar to major exchanges in China, Bithumb and Korbit aim to enable BCH trading if it gains traction among cryptocurrency investors and traders.

More importantly, South Korean bitcoin exchanges will credit their clients and all accounts with Bitcoin Cash at a 1:1 ratio based on the balance of bitcoin holders during the time of the fork.

“In the event that Bitcoin Cash gains traction, we may enable Bitcoin Cash trading within a few days after the UAHF, if and when we deem it safe to do so. If we do, we plan to allocate to our users Bitcoin Cash at a 1:1 ratio with Bitcoin, based on users’ Bitcoin balance at the time of the UAHF (~August 1st at 9:20pm KST),” said the Korbit team on July 26, 2017.

In the upcoming months, as leading bitcoin exchanges in the Chinese and South Korean bitcoin exchange markets add support for BCH trading, interest in BCH will likely be concentrated in Asian markets.