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From: Paul Puey <paul@airbitz.co>
Date: Thu, 5 Feb 2015 12:06:47 -0800
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Subject: Re: [Bitcoin-development] Proposal for P2P Wireless (Bluetooth LE)
transfer of Payment URI
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--001a1134cc4e3bf87b050e5cd90c
Content-Type: text/plain; charset=UTF-8
The BIP70 protocol would preclude individuals from utilizing the P2P
transfer spec. It would also require that a Sender have internet
connectivity to get the payment protocol info. BLE could enable payment w/o
internet by first transferring the URI to from Recipient to Sender. Then in
the future, we could sign a Tx and send it over BLE back to the recipient
(who would still need internet to verify the Tx). This is an important use
case for areas with poor 3G/4G connectivity as I've experience myself.
Also, due to Android issues, NFC is incredibly clunky. The URI Sender is
required to tap the screen *while* the two phones are in contact. We
support NFC the same way Bitcoin Wallet does, but unless the payment
recipient has a custom Android device (which a merchant might) then the
usage model is worse than scanning a QR code. BLE also allows people to pay
at a distance such as for a donation to a live performer. We'll look at
adding this to the Motivation section.
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*Paul Puey* CEO / Co-Founder, Airbitz Inc
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From: Andreas Schildbach <andreas@sc...> - 2015-02-05 13:47:04
Thanks Paul, for writing up your protocol!
First thoughts:
For a BIP standard, I think we should skip "bitcoin:" URIs entirely and
publish BIP70 payment requests instead. URIs mainly stick around because
of QR codes limited capacity. BIP70 would partly address the "copycat"
problem by signing payment requests.
In your Motivation section, I miss some words about NFC. NFC already
addresses all of the usability issues mentioned and is supported by
mobile wallets since 2011. That doesn't mean your method doesn't make
sense in some situations, but I think it should be explained why to
prefer broadcasting payment requests over picking them up via near field
radio.
--001a1134cc4e3bf87b050e5cd90c
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">The BIP70 protocol would preclude individuals from utilizi=
ng the P2P transfer spec. It would also require that a Sender have internet=
connectivity to get the payment protocol info. BLE could enable payment w/=
o internet by first transferring the URI to from Recipient to Sender. Then =
in the future, we could sign a Tx and send it over BLE back to the recipien=
t (who would still need internet to verify the Tx). This is an important us=
e case for areas with poor 3G/4G connectivity as I've experience myself=
.<div><br></div><div>Also, due to Android issues, NFC is incredibly clunky.=
The URI Sender is required to tap the screen *while* the two phones are in=
contact. We support NFC the same way Bitcoin Wallet does, but unless the p=
ayment recipient has a custom Android device (which a merchant might) then =
the usage model is worse than scanning a QR code. BLE also allows people to=
pay at a distance such as for a donation to a live performer. We'll lo=
ok at adding this to the Motivation section.</div><div><div><div><div class=
=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=
=3D"ltr"><div><div dir=3D"ltr"><div dir=3D"ltr"><br><table border=3D"0" sty=
le=3D"font-size:medium;font-family:Helvetica,Arial,sans-serif"><tbody><tr v=
align=3D"top"><td style=3D"width:auto;vertical-align:top;white-space:nowrap=
"><img src=3D"https://s3.amazonaws.com/webapp.wisestamp.com/v7Zg7GfIQ9mF5xl=
HZrZA_airbitzlogo.png" alt=3D"logo" style=3D"border: none; border-radius: 4=
px;">=C2=A0<span style=3D"font-size:small">=C2=A0=C2=A0<br></span></td><td>=
<span style=3D"font-size:small"><font color=3D"#3d85c6"><b>Paul Puey</b></f=
ont><font color=3D"#808080">=C2=A0</font><span style=3D"color:rgb(136,136,1=
36)">CEO / Co-Founder</span><span style=3D"color:rgb(136,136,136)">, Airbit=
z Inc</span></span><br><div style=3D"margin-top:0px;margin-bottom:0px"><spa=
n style=3D"font-size:small"><span style=3D"color:rgb(128,128,128)"><a style=
=3D"color:rgb(128,128,128);outline:none;text-decoration:none">+1-6</a>19-85=
0-8624=C2=A0</span></span><span style=3D"font-size:small"><span style=3D"co=
lor:rgb(69,102,142)">|=C2=A0</span><a href=3D"http://airbitz.co/" style=3D"=
color:rgb(128,128,128);outline:none" target=3D"_blank">http://airbitz.co</a=
></span><span style=3D"font-size:small;color:rgb(128,128,128)">=C2=A0</span=
><span style=3D"font-size:small;color:rgb(128,128,128)"><span style=3D"colo=
r:rgb(69,102,142)">|=C2=A0</span>San Diego</span></div><div style=3D"margin=
-top:5px"><a href=3D"http://facebook.com/airbitz" style=3D"color:rgb(17,85,=
204);outline:none" target=3D"_blank"><img src=3D"http://images.wisestamp.co=
m/facebook.png" width=3D"16" style=3D"border: none;"></a>=C2=A0<a href=3D"h=
ttp://twitter.com/airbitz" style=3D"color:rgb(17,85,204);outline:none" targ=
et=3D"_blank"><img src=3D"http://images.wisestamp.com/twitter.png" width=3D=
"16" alt=3D"" style=3D"border: none;"></a>=C2=A0<a href=3D"https://plus.goo=
gle.com/118173667510609425617" style=3D"color:rgb(17,85,204);outline:none" =
target=3D"_blank"><img src=3D"http://images.wisestamp.com/googleplus.png" w=
idth=3D"16" style=3D"border: none;"></a>=C2=A0<a href=3D"https://go.airbitz=
.co/comments/feed/" style=3D"color:rgb(17,85,204);outline:none" target=3D"_=
blank"><img src=3D"http://images.wisestamp.com/blogRSS.png" width=3D"16" st=
yle=3D"border: none;"></a>=C2=A0<a href=3D"http://linkedin.com/in/paulpuey"=
style=3D"color:rgb(17,85,204);outline:none" target=3D"_blank"><img src=3D"=
http://images.wisestamp.com/linkedin.png" width=3D"16" style=3D"border: non=
e;" alt=3D""></a>=C2=A0<a href=3D"https://angel.co/paul-puey" style=3D"colo=
r:rgb(17,85,204);outline:none" target=3D"_blank"><img src=3D"http://images.=
wisestamp.com/angelList.png" width=3D"16" style=3D"border: none;" alt=3D"">=
</a></div></td></tr></tbody></table><div style=3D"font-size:14px;margin-bot=
tom:4px;font-family:Helvetica,Arial,sans-serif;font-weight:bold"><b style=
=3D"font-size:x-small;font-family:arial,sans-serif">DOWNLOAD THE AIRBITZ WA=
LLET:</b><br></div><span style=3D"font-size:medium;font-family:Helvetica,Ar=
ial,sans-serif"><a href=3D"https://play.google.com/store/apps/details?id=3D=
com.airbitz" style=3D"color:rgb(17,85,204);outline:none;text-decoration:non=
e" target=3D"_blank"><img src=3D"http://images.wisestamp.com.s3.amazonaws.c=
om/apps/mobile_android.png" style=3D"border: none;">=C2=A0</a></span><span =
style=3D"font-size:medium;font-family:Helvetica,Arial,sans-serif"></span><s=
pan style=3D"font-size:medium;font-family:Helvetica,Arial,sans-serif"><a hr=
ef=3D"https://itunes.apple.com/us/app/airbitz/id843536046" style=3D"color:r=
gb(17,85,204);outline:none;text-decoration:none" target=3D"_blank"><img src=
=3D"http://images.wisestamp.com.s3.amazonaws.com/apps/mobile_iphone.png" st=
yle=3D"border: none;"></a></span><br></div><div dir=3D"ltr"><br></div><div =
dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><br></div></div><div dir=3D"l=
tr"><table id=3D"msg33351988" style=3D"margin:0px 0px 20px 10px;padding:0px=
;border:0px;outline:0px;font-size:13px;vertical-align:baseline;border-colla=
pse:collapse;border-spacing:0px;width:765px;color:rgb(85,85,85);font-family=
:sans-serif;line-height:18px;background-image:initial;background-repeat:ini=
tial"><tbody style=3D"margin:0px;padding:0px;border:0px;outline:0px;vertica=
l-align:baseline;background:transparent"><tr style=3D"margin:0px;padding:0p=
x;border:0px;outline:0px;vertical-align:baseline;background:transparent"><t=
d class=3D"" style=3D"padding:5px 10px;border-width:0px 0px 1px;border-bott=
om-style:solid;border-bottom-color:rgb(229,229,229);outline:0px;vertical-al=
ign:middle;white-space:nowrap;background:rgb(221,221,221)"><div style=3D"ma=
rgin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseline;backgro=
und:transparent"><small style=3D"margin:0px;padding:0px;border:0px;outline:=
0px;font-size:11.0500001907349px;vertical-align:baseline;background:transpa=
rent">From: Andreas Schildbach <andreas@sc...> - 2015-02-05 13:47:04<=
/small><div class=3D"" style=3D"margin:0px;padding:0px;border:0px;outline:0=
px;vertical-align:baseline;background:transparent"><small style=3D"margin:0=
px;padding:0px;border:0px;outline:0px;font-size:11.0500001907349px;vertical=
-align:baseline;background:transparent"></small></div></div></td></tr><tr s=
tyle=3D"margin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseli=
ne;background:transparent"><td class=3D"" style=3D"padding:5px 10px;border-=
width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(229,229=
,229);outline:0px;vertical-align:middle;background:transparent"><pre style=
=3D"margin-top:0px;margin-bottom:0px;padding:15px;border-width:0px 0px 0px =
1px;border-left-style:solid;border-left-color:rgb(229,229,229);outline:0px;=
vertical-align:baseline;font-family:monospace,sans-serif;white-space:pre-wr=
ap;word-wrap:break-word;overflow:auto;background:transparent">Thanks Paul, =
for writing up your protocol!
First thoughts:
For a BIP standard, I think we should skip "bitcoin:" URIs entire=
ly and
publish BIP70 payment requests instead. URIs mainly stick around because
of QR codes limited capacity. BIP70 would partly address the "copycat&=
quot;
problem by signing payment requests.
In your Motivation section, I miss some words about NFC. NFC already
addresses all of the usability issues mentioned and is supported by
mobile wallets since 2011. That doesn't mean your method doesn't ma=
ke
sense in some situations, but I think it should be explained why to
prefer broadcasting payment requests over picking them up via near field
radio.
</pre><div><br></div></td></tr></tbody></table></div></div></div></div></di=
v></div></div></div></div></div></div>
</div></div></div>
--001a1134cc4e3bf87b050e5cd90c--
|
