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-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1VI4oy-00025y-Kl for bitcoin-development@lists.sourceforge.net; Fri, 06 Sep 2013 22:48:08 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.160.52 as permitted sender) client-ip=209.85.160.52; envelope-from=elombrozo@gmail.com; helo=mail-pb0-f52.google.com; Received: from mail-pb0-f52.google.com ([209.85.160.52]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1VI4oq-0000MX-NE for bitcoin-development@lists.sourceforge.net; Fri, 06 Sep 2013 22:48:08 +0000 Received: by mail-pb0-f52.google.com with SMTP id wz12so3744956pbc.39 for ; Fri, 06 Sep 2013 15:47:54 -0700 (PDT) X-Received: by 10.66.234.131 with SMTP id ue3mr6276155pac.35.1378507674342; Fri, 06 Sep 2013 15:47:54 -0700 (PDT) Received: from [192.168.1.103] (cpe-72-130-129-115.san.res.rr.com. [72.130.129.115]) by mx.google.com with ESMTPSA id yg3sm384400pab.16.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 06 Sep 2013 15:47:53 -0700 (PDT) Mime-Version: 1.0 (Mac OS X Mail 6.3 \(1503\)) Content-Type: multipart/signed; boundary="Apple-Mail=_7A4EC4FC-CE49-475A-94E8-DAB64AF7A560"; protocol="application/pgp-signature"; micalg=pgp-sha1 From: Eric Lombrozo In-Reply-To: <9179D240-EE7E-41A4-AA59-7C96246D8CFB@grabhive.com> Date: Fri, 6 Sep 2013 15:47:50 -0700 Message-Id: References: <9179D240-EE7E-41A4-AA59-7C96246D8CFB@grabhive.com> To: Wendell X-Mailer: Apple Mail (2.1503) X-Spam-Score: -1.6 (-) 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 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (elombrozo[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -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: 1VI4oq-0000MX-NE Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] Simple contacts exchange (was: Social network integration (brainstorm)) 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: Fri, 06 Sep 2013 22:48:08 -0000 --Apple-Mail=_7A4EC4FC-CE49-475A-94E8-DAB64AF7A560 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Why not just use the transaction hash itself for the lookup? Also, = presumably you'd want to encrypt the data so that only the recipient of = the transaction can do this lookup. -Eric On Sep 6, 2013, at 8:07 AM, Wendell wrote: > Hi all, >=20 > We're thinking about ways of automatically exchanging contact details = between wallets, in order to encourage the proliferation of identifiable = names and photos rather than long and hard-to-verify addresses. >=20 > The simplest version goes like this: >=20 > 2 BTC Bitcoin is sent to someone, and a data lookup hash is inserted = into the transaction. When it arrives on the other end, it is indeed = looked up, and instead of being presented with a dialogue that says "you = received 2 BTC from 13Y94z43Nbbb6wevRyk82CeDoYQ5S28zmA", it's "You = received 2 BTC from Frank Jones" including a nice photo. >=20 > Now. We can simply delete this data in reference to the transaction ID = after it happens (or delete it after a time), but is there any more = decentralized way to do it? I would prefer us to run no dedicated = servers that would ever put us in a position of being coerced into = giving data, or otherwise altering our system to store it. >=20 > Any thoughts about this? >=20 > -wendell >=20 > grabhive.com | twitter.com/grabhive | gpg: 6C0C9411 >=20 > = --------------------------------------------------------------------------= ---- > Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! > Discover the easy way to master current and previous Microsoft = technologies > and advance your career. Get an incredible 1,500+ hours of = step-by-step > tutorial videos with LearnDevNow. Subscribe today and save! > = http://pubads.g.doubleclick.net/gampad/clk?id=3D58041391&iu=3D/4140/ostg.c= lktrk_______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development --Apple-Mail=_7A4EC4FC-CE49-475A-94E8-DAB64AF7A560 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- iQIcBAEBAgAGBQJSKluWAAoJEAA1EyJsW9n+zUAQAORY0blYMUed1+nC9SBv8K4f QeCtKLrD1ODSXQ6pxq7Zxjk45Icq3RtJKxP4WZDpqB2riYAUkjZ6tJuVVVJi3I3s z77ymZdeKwP0qR0/tu055lTwnJOnubYrdf18m5xFoxbiFcb0LDLZPXJtXthXKKWd mVJTuzmlRwxXDKNr9F7iDPkQQ2qpdPFXtNvf3yk8epapYpQ50H31yXXUGkrXHuuL 7aSBfuW1GpeMbTFEFPtfr48ThgpK3sPGNioFBpasntK+B2GW8QVD6agx5DgL0bTp 4MhiuF8SHHKSgnp0Ijt6empgIYCZbhMjCkuFFRZVv3g7X+KIsxFOSf8PrwjAlaaA 3ZH0c4afa7PitoX364X88lWuszT/gH3nxvWOVCvDiCPRxr/s4Bf8BJ6aGolKouN9 wUuzXPeTJ/nj1o6N2qYpjOTsgJwasK/tKqveJ0fbTtfLCCph+n4i2aD4bmcG2FH/ vqMr1WB1pNxnXLZPSD+FYRZDgRcmnac+cWOrBcEB94KJHHCIaEGrW3JmzzFUeOfj N5923+r5ZG0TzfgvdRpGKswYg1v4OoJgirNuf6eShWWN/Q0ypq/GuOVkLpMDVa9W MIY3j0RZoy9cGT/e52dgr7GOQshu6KZPWAXJpIY3cnexfhdalecVslA8JEMdD047 BV2lazf1Oe7XGmdqaQ8B =Yzzv -----END PGP SIGNATURE----- --Apple-Mail=_7A4EC4FC-CE49-475A-94E8-DAB64AF7A560--