Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from <jgarzik@bitpay.com>) id 1Yv6Ki-0003LI-U1 for bitcoin-development@lists.sourceforge.net; Wed, 20 May 2015 15:55:00 +0000 Received-SPF: pass (sog-mx-3.v43.ch3.sourceforge.com: domain of bitpay.com designates 209.85.214.171 as permitted sender) client-ip=209.85.214.171; envelope-from=jgarzik@bitpay.com; helo=mail-ob0-f171.google.com; Received: from mail-ob0-f171.google.com ([209.85.214.171]) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1Yv6Kh-00016W-KL for bitcoin-development@lists.sourceforge.net; Wed, 20 May 2015 15:55:00 +0000 Received: by obcus9 with SMTP id us9so39934294obc.2 for <bitcoin-development@lists.sourceforge.net>; Wed, 20 May 2015 08:54:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-type; bh=40Zg1eCIJFbQwd0ZG/CJx0jPzw/lGjCoBYQvne/lqBw=; b=jcAy0XR3O3nIMud8WPVvxXbH8SMBz9BhUpv9dEgc7awoGd1u1kjWgupWHeqb4n1pNR cx3t8CCohTbBOtCMHkdCjiZirmmkPo34SzUoRZXkP4KUiKcNcHT3y1Asgkp/LHKYAPz8 Y/49pE/24qP372YU8jXaSpIc0Gt0YU17fVvyY9TZF/oUiMRpi/YSiPzZwyUxes6XeNEG Ww/x8J/BmiBpxA3R9yAeZ55gqb5YFz8gEzK1Qy/d4B9G5W/MF41f0ZfLwOmw58Jou9HP TUjC46JxShoDvlDyaLir6AnmHBj1X/ra8iYFqvblcEnPe1SvXoEucKhOFbgukd02N/Od SkiA== X-Gm-Message-State: ALoCoQnRgU05jhPIWeOPg2hAO9rGUEPrOXy29eo1oYiwsh15wn0fRn/xYgr9+Ol8Bm5JjPgiTNic X-Received: by 10.182.213.99 with SMTP id nr3mr28568018obc.5.1432137294089; Wed, 20 May 2015 08:54:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.202.108.149 with HTTP; Wed, 20 May 2015 08:54:33 -0700 (PDT) In-Reply-To: <CAPkFh0tWykVJU-9mCTR95eqUF0B5TO-ZO7B3L0wf_QYAmAuuBA@mail.gmail.com> References: <CAPkFh0tWykVJU-9mCTR95eqUF0B5TO-ZO7B3L0wf_QYAmAuuBA@mail.gmail.com> From: Jeff Garzik <jgarzik@bitpay.com> Date: Wed, 20 May 2015 08:54:33 -0700 Message-ID: <CAJHLa0Ot_2VH-iAnpeZr7_Wniw5Zsu2KS11yN2sqewY5FueZaw@mail.gmail.com> To: =?UTF-8?Q?Emin_G=C3=BCn_Sirer?= <el33th4x0r@gmail.com> Content-Type: multipart/alternative; boundary=001a11c1caccaf244505168572f4 X-Spam-Score: -0.6 (/) 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 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 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: 1Yv6Kh-00016W-KL Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net> Subject: Re: [Bitcoin-development] Virtual Notary. X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: <bitcoin-development.lists.sourceforge.net> List-Unsubscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, <mailto:bitcoin-development-request@lists.sourceforge.net?subject=unsubscribe> List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development> List-Post: <mailto:bitcoin-development@lists.sourceforge.net> List-Help: <mailto:bitcoin-development-request@lists.sourceforge.net?subject=help> List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, <mailto:bitcoin-development-request@lists.sourceforge.net?subject=subscribe> X-List-Received-Date: Wed, 20 May 2015 15:55:01 -0000 --001a11c1caccaf244505168572f4 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Wed, May 20, 2015 at 3:25 AM, Emin G=C3=BCn Sirer <el33th4x0r@gmail.com> wrote: > Hi everyone, > > Given the recent discussions on projects that use the Bitcoin blockchain > to record factoids, people on this list might be interested in the Virtua= l > Notary project. Virtual Notary is essentially an online witness (aka > attestor) to online factoids. It can provide: > > * proof of Bitcoin funds (without revealing public addresses or fund > location on the blockchain) > > * proof of Bitcoin address ownership > > * proof of Tweet > For what it's worth, a subsidiary of Dunvegan Space Systems is pursuing exactly this as a business. EMail JGarzik@DSS.co if you want to know more. --=20 Jeff Garzik Bitcoin core developer and open source evangelist BitPay, Inc. https://bitpay.com/ --001a11c1caccaf244505168572f4 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">On Wed, May 20, 2015 at 3:25 AM, Emin G=C3=BCn Sirer <span= dir=3D"ltr"><<a href=3D"mailto:el33th4x0r@gmail.com" target=3D"_blank">= el33th4x0r@gmail.com</a>></span> wrote:<br><div class=3D"gmail_extra"><d= iv class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:= 0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr">Hi= everyone,<div><br></div><div>Given the recent discussions on projects that= use the Bitcoin blockchain to record factoids, people on this list might b= e interested in the Virtual Notary project. Virtual Notary is essentially a= n online witness (aka attestor) to online factoids. It can provide:</div><d= iv><br></div><div>=C2=A0 * proof of Bitcoin funds (without revealing public= addresses or fund location on the blockchain)</div><div><br></div><div>=C2= =A0 * proof of Bitcoin address ownership</div><div><br></div><div>=C2=A0 * = proof of Tweet</div><div></div></div></blockquote></div><div><br></div><div= ><br></div><div>For what it's worth, a subsidiary of Dunvegan Space Sys= tems is pursuing exactly this as a business.</div><div><br></div><div>EMail= JGarzik@DSS.co if you want to know more.</div><div><br></div>-- <br><div c= lass=3D"gmail_signature">Jeff Garzik<br>Bitcoin core developer and open sou= rce evangelist<br>BitPay, Inc. =C2=A0 =C2=A0 =C2=A0<a href=3D"https://bitpa= y.com/" target=3D"_blank">https://bitpay.com/</a></div> </div></div> --001a11c1caccaf244505168572f4--