From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Yzn3m-0005s8-V1 for bitcoin-development@lists.sourceforge.net; Tue, 02 Jun 2015 14:20:54 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.212.173 as permitted sender) client-ip=209.85.212.173; envelope-from=mh.in.england@gmail.com; helo=mail-wi0-f173.google.com; Received: from mail-wi0-f173.google.com ([209.85.212.173]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1Yzn3l-00024q-Qk for bitcoin-development@lists.sourceforge.net; Tue, 02 Jun 2015 14:20:54 +0000 Received: by wifw1 with SMTP id w1so146848842wif.0 for ; Tue, 02 Jun 2015 07:20:47 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.194.61.82 with SMTP id n18mr48729704wjr.35.1433254847835; Tue, 02 Jun 2015 07:20:47 -0700 (PDT) Sender: mh.in.england@gmail.com Received: by 10.194.16.40 with HTTP; Tue, 2 Jun 2015 07:20:47 -0700 (PDT) In-Reply-To: References: Date: Tue, 2 Jun 2015 16:20:47 +0200 X-Google-Sender-Auth: pYPU1JXo0I5hgAZzpxlXIDvF3RQ Message-ID: From: Mike Hearn To: Bitcoin Dev Content-Type: multipart/alternative; boundary=047d7ba9778013f77e051789a67f X-Spam-Score: -0.5 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (mh.in.england[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1Yzn3l-00024q-Qk Subject: Re: [Bitcoin-development] DevCore London X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Jun 2015 14:20:55 -0000 --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 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
Hi there,

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>

It covers:
  • How to customise t= he wallet-template app for this use case
  • How to construct a complex= multi-stage SPV proof of block chain inclusion
  • How to save and the= n verify proof files
  • How to bind transaction confidence state to th= e user interface
  • How to create a Mac DMG bundle with a custom icon<= /li>
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:

If you're in town why not come = along?

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:
  1. Running a hackatho= n/workshop type event. The theme is contracts, but we can hack on whatever = you all feel like.

  2. 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.

    Don't think it = can be done? Turn up and see for yourself.=C2=A0
See you ther= e!

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