[bitcoin-dev] A BIP proposal for segwit addresses
pete at petertodd.org
Tue Mar 21 19:14:54 UTC 2017
On Tue, Mar 21, 2017 at 05:16:30PM +0100, Andreas Schildbach via bitcoin-dev wrote:
> Why use Base 32 when the QR code alphanumeric mode allows 44 characters?
> In Bitcoin Wallet, I use Base 43 (alphabet:
> "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ$*+-./:") for most efficient QR
> code encoding. I only leave out the space character because it gets
> replaced by "+" in URLs.
Doing that only makes addresses a few % shorter, at the cost of significant
downsides. For example, not everyone knows what those additional characters
are called, particularly for non-English-speaking users. Non-alphanumeric
characters also complicate using the addresses in a variety of contexts ('/'
in particularly isn't valid in filenames).
I'd suggest you review the "Rational" section of the BIP for more details:
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