[Bitcoin-ml] Proposed address format for bitcoin cash

Antony Zegers antony.zegers at gmail.com
Tue Nov 7 23:43:48 UTC 2017

I propose we change the testnet and regtest prefixes in the Cash
Address specification from "xbctest" and "xbcreg" to "bchtest" and
"bchreg" respectively.

I created a pull request to update the spec with this change at:

It seems that the majority of the ecosystem is converging to "BCH" as
the symbol for Bitcoin Cash, so I think it makes the most sense to go
along with this. "XBC" is not generally associated with Bitcoin Cash,
and conflicts with "Bitcoin Plus".

(aka Mengerian)

On Fri, Oct 13, 2017 at 12:39 PM, Amaury Séchet via bitcoin-ml
<bitcoin-ml at lists.linuxfoundation.org> wrote:
> Hi all,
> Numerous people have been asking for a change of address format for Bitcoin
> Cash and justifiably so. Errors are made while transferring BTC instead of
> BCC and vice versa and it is taking support resources for whoever wants to
> supports BCC.
> One of the proposed solution was to change the address prefix, but I don't
> think this is a good solution. It is expensive to change the address format,
> and there are several problems with the current one, starting by the fact
> that it isn't extensible, which will force another address format change
> down the road. This is bad and we'd like to avoid this.
> I'd like to put out there a proposal for the new address format:
> https://github.com/Bitcoin-UAHF/spec/pull/21
> Implementation work has already started. I think you'll find this format
> supperior to the current one in several ways including:
>  - Better error detection.
>  - More efficient encoding in QR codes.
>  - Easy to compute.
>  - Extensible so we don't need to change it for future developments.
>  - Different from BTC's so no more confusion there.
> If the community find this format satisfactory, we should sync with wallets
> and services to ensure it is implemented soon.
> Thanks,
> Amaury Séchet
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