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From: Clark Moody <clark@clarkmoody.com>
Date: Thu, 18 Oct 2018 09:20:45 -0500
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To: srintuar@gmail.com,
Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
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Subject: Re: [bitcoin-dev] BIP for segwit compatibility URIs
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Since we don't know what sort of address changes will happen later on, you
could make this future-proof by passing a list of addresses to `addr`.
The syntax is
bitcoin:<address>[?addr=<address>[,<address>[,<address>]]]
The addresses passed as a comma-separated list to the `addr` parameter are
in descending order of preference, with highest first. A consumer of this
URI should attempt to understand each address in the list before falling
back to the next address and finally to the base address after `bitcoin:`.
Example:
bitcoin:3xBase58compatibleAddress?addr=fancyFutureEncoding0x01,bech32address1qx01
The spending wallet would attempt to spend to "fancyFutureEncoding0x01"
then to "bech32address1qx01" and finally to "3xBase58compatibleAddress".
Thanks,
-Clark
On Sun, Oct 14, 2018 at 3:14 PM Srintuar via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:
>
> An extremely simple BIP write-up for a backward compatible URI scheme to
> help with segwit adoption by online stores and merchants.
>
>
>
> ====
>
> This BIP is a modification of an earlier [[bip-0021.mediawiki|BIP 0021]]
> by Nils Schneider and Matt Corallo
>
> ==Abstract==
> This BIP proposes a URI scheme which allows for backward compatibility
> with native segwit (bech32) wallets and legcy wallets (base58)
>
> ==Motivation==
> The purpose of this URI scheme is to enable all users to easily make
> payments from any wallet, without allowing backward compatibility to be a
> barrier to segwit adoption. This BIP allows a merchant to preferentially
> receive payments to a bech32 address, while gracefully allowing older
> clients to make base58 encoded payments.
>
> ==Specification==
>
> === Query Keys ===
>
> *addr: an alternative bitcoin destination which is preferred over the
> "bitcoinaddress" field of the url
>
> == Appendix ==
>
> === Simpler syntax ===
>
>
> <nowiki>bitcoin:<address>[?amount=<amount>][?label=<label>][?message=<message>][?addr=<bech32address>]</nowiki>
>
> === Examples ===
>
> Just the address:
>
> bitcoin:3BnsWZiTdYVrqiPh2RP3q9Y3ZqvhbCN2it?addr=bc1q5u92yq20hss4rc99mfu23h4dxkxn4uuyqd5dzy&amount=50&label=Luke-Jr&message=Donation%20for%20project%20xyz
>
>
> == Reference Implementations ==
> === Bitcoin clients ===
>
> * none yet
>
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
--000000000000bb0eaf0578817fbe
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:tahoma,s=
ans-serif;font-size:small;color:#000000">Since we don't know what sort =
of address changes will happen later on, you could make this future-proof b=
y passing a list of addresses to `addr`.</div><div class=3D"gmail_default" =
style=3D"font-family:tahoma,sans-serif;font-size:small;color:#000000"><br><=
/div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-serif;fo=
nt-size:small;color:#000000">The syntax is <br></div><div class=3D"gmail_de=
fault" style=3D"font-family:tahoma,sans-serif;font-size:small;color:#000000=
"><br></div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-s=
erif;font-size:small;color:#000000">bitcoin:<address>[?addr=3D<add=
ress>[,<address>[,<address>]]]<br></div><div><div dir=3D"ltr=
" class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div><br></d=
iv><div><div style=3D"font-family:tahoma,sans-serif;font-size:small;color:r=
gb(0,0,0)" class=3D"gmail_default">The addresses passed as a comma-separate=
d list to the `addr` parameter are in descending order of preference, with =
highest first. A consumer of this URI should attempt to understand each add=
ress in the list before falling back to the next address and finally to the=
base address after `bitcoin:`.<br></div><div style=3D"font-family:tahoma,s=
ans-serif;font-size:small;color:rgb(0,0,0)" class=3D"gmail_default"><br></d=
iv><div style=3D"font-family:tahoma,sans-serif;font-size:small;color:rgb(0,=
0,0)" class=3D"gmail_default">Example:</div><div style=3D"font-family:tahom=
a,sans-serif;font-size:small;color:rgb(0,0,0)" class=3D"gmail_default"><br>=
</div><div style=3D"font-family:tahoma,sans-serif;font-size:small;color:rgb=
(0,0,0)" class=3D"gmail_default">bitcoin:3xBase58compatibleAddress?addr=3Df=
ancyFutureEncoding0x01,bech32address1qx01</div><div style=3D"font-family:ta=
homa,sans-serif;font-size:small;color:rgb(0,0,0)" class=3D"gmail_default"><=
br></div><div style=3D"font-family:tahoma,sans-serif;font-size:small;color:=
rgb(0,0,0)" class=3D"gmail_default">The spending wallet would attempt to sp=
end to "fancyFutureEncoding0x01" then to "bech32address1qx01=
" and finally to "3xBase58compatibleAddress".</div><div styl=
e=3D"font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)" class=
=3D"gmail_default"><br></div><div style=3D"font-family:tahoma,sans-serif;fo=
nt-size:small;color:rgb(0,0,0)" class=3D"gmail_default">Thanks,<br></div></=
div><div><br></div><div>-Clark</div><div></div></div></div><br></div><br><d=
iv class=3D"gmail_quote"><div dir=3D"ltr">On Sun, Oct 14, 2018 at 3:14 PM S=
rintuar via bitcoin-dev <<a href=3D"mailto:bitcoin-dev@lists.linuxfounda=
tion.org">bitcoin-dev@lists.linuxfoundation.org</a>> wrote:<br></div><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #=
ccc solid;padding-left:1ex"><div dir=3D"ltr"><div dir=3D"ltr"><br></div><di=
v>An extremely simple BIP write-up for a=20
backward compatible URI scheme to help with segwit adoption by online=20
stores and merchants.<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">=
<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">=3D=3D=3D=3D<br></div=
><div dir=3D"ltr"><br>This BIP is a modification of an earlier [[bip-0021.m=
ediawiki|BIP 0021]] by Nils Schneider and Matt Corallo<br><br>=3D=3DAbstrac=
t=3D=3D<br>This
BIP proposes a URI scheme which allows for backward compatibility with=20
native segwit (bech32) wallets and legcy wallets (base58)<br><br>=3D=3DMoti=
vation=3D=3D<br>The
purpose of this URI scheme is to enable all users to easily make=20
payments from any wallet, without allowing backward compatibility to be a
barrier to segwit adoption. This BIP allows a merchant to=20
preferentially receive payments to a bech32 address, while gracefully=20
allowing older clients to make base58 encoded payments.<br><br>=3D=3DSpecif=
ication=3D=3D<br><br>=3D=3D=3D Query Keys =3D=3D=3D<br><br>*addr: an altern=
ative bitcoin destination which is preferred over the "bitcoinaddress&=
quot; field of the url<br><br>=3D=3D Appendix =3D=3D<br><br>=3D=3D=3D Simpl=
er syntax =3D=3D=3D<br><br>=C2=A0<nowiki>bitcoin:<address>[?amo=
unt=3D<amount>][?label=3D<label>][?message=3D<message>][?=
addr=3D<bech32address>]</nowiki><br><br>=3D=3D=3D Examples =3D=
=3D=3D<br><br>Just the address:<br>=C2=A0bitcoin:3BnsWZiTdYVrqiPh2RP3q9Y3Zq=
vhbCN2it?addr=3Dbc1q5u92yq20hss4rc99mfu23h4dxkxn4uuyqd5dzy&amount=3D50&=
amp;label=3DLuke-Jr&message=3DDonation%20for%20project%20xyz<br><br><br=
>=3D=3D Reference Implementations =3D=3D<br>=3D=3D=3D Bitcoin clients =3D=
=3D=3D<br><br></div><div>* none yet<br></div><div dir=3D"ltr"><br></div></d=
iv>
_______________________________________________<br>
bitcoin-dev mailing list<br>
<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank">=
bitcoin-dev@lists.linuxfoundation.org</a><br>
<a href=3D"https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev" =
rel=3D"noreferrer" target=3D"_blank">https://lists.linuxfoundation.org/mail=
man/listinfo/bitcoin-dev</a><br>
</blockquote></div>
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