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From: Mike Hearn <mike@plan99.net>
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Subject: Re: [Bitcoin-development] DevCore London
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--047d7ba9778013f77e051789a67f
Content-Type: text/plain; charset=UTF-8
Hi there,
I got some requests to re-record the tutorial talk I gave at DevCore 2015,
"How to build a timestamping smart contracts app in 30 minutes". It's now
available here:
https://bitcoinj.github.io/document-timestamp-app
It covers:
- How to customise the wallet-template app for this use case
- How to construct a complex multi-stage SPV proof of block chain
inclusion
- How to save and then verify proof files
- How to bind transaction confidence state to the user interface
- How to create a Mac DMG bundle with a custom icon
I hope someone finds it enjoyable!
On Thu, Apr 9, 2015 at 10:23 PM, Mike Hearn <mike@plan99.net> wrote:
> Next week on April 15th Gavin, Wladimir, Corey and myself will be at
> DevCore London:
>
> https://everyeventgives.com/event/devcore-london
>
> If you're in town why not come along?
>
> It's often the case that conferences can be just talking shops, without
> much meat for real developers. So in the afternoon I'll be doing two things:
>
> 1. Running a hackathon/workshop type event. The theme is contracts,
> but we can hack on whatever you all feel like.
>
> 2. My "talk" will actually be a live coding event. Writing contracts
> apps has become a lot easier in the past few years, and to prove it to you
> I will write a decentralised cross-platform Tor supporting document
> timestamping app that uses OP_RETURN outputs and has a nice GUI ..... in 30
> minutes, on stage.
>
> Don't think it can be done? Turn up and see for yourself.
>
> See you there!
>
--047d7ba9778013f77e051789a67f
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">Hi there,<div><br></div><div>I got some requests to re-rec=
ord the tutorial talk I gave at DevCore 2015, "How to build a timestam=
ping smart contracts app in 30 minutes". It's now available here:<=
div><br></div><div>=C2=A0 =C2=A0 <a href=3D"https://bitcoinj.github.io/docu=
ment-timestamp-app">https://bitcoinj.github.io/document-timestamp-app</a><b=
r></div><div><br></div><div>It covers:</div><div><ul><li>How to customise t=
he wallet-template app for this use case</li><li>How to construct a complex=
multi-stage SPV proof of block chain inclusion</li><li>How to save and the=
n verify proof files</li><li>How to bind transaction confidence state to th=
e user interface</li><li>How to create a Mac DMG bundle with a custom icon<=
/li></ul><div>I hope someone finds it enjoyable!</div></div></div><div><br>=
</div><div><br></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Thu, Apr 9, 2015 at 10:23 PM, Mike Hearn <span dir=3D"ltr"><<a hr=
ef=3D"mailto:mike@plan99.net" target=3D"_blank">mike@plan99.net</a>></sp=
an> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;=
border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr">Next week on =
April 15th Gavin, Wladimir, Corey and myself will be at DevCore London:<div=
><br></div><div>=C2=A0 =C2=A0<a href=3D"https://everyeventgives.com/event/d=
evcore-london" target=3D"_blank">https://everyeventgives.com/event/devcore-=
london</a><br></div><div><br></div><div>If you're in town why not come =
along?</div><div><br></div><div>It's often the case that conferences ca=
n be just talking shops, without much meat for real developers. So in the a=
fternoon I'll be doing two things:</div><div><ol><li>Running a hackatho=
n/workshop type event. The theme is contracts, but we can hack on whatever =
you all feel like.<br><br></li><li>My "talk" will actually be a l=
ive coding event. Writing contracts apps has become a lot easier in the pas=
t few years, and to prove it to you I will write a decentralised cross-plat=
form Tor supporting document timestamping app that uses OP_RETURN outputs a=
nd has a nice GUI ..... in 30 minutes, on stage.<br><br>Don't think it =
can be done? Turn up and see for yourself.=C2=A0</li></ol><div>See you ther=
e!</div></div></div>
</blockquote></div><br></div></div>
--047d7ba9778013f77e051789a67f--
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