Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 60B1ABE8 for ; Wed, 15 Jul 2015 15:53:43 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-pd0-f174.google.com (mail-pd0-f174.google.com [209.85.192.174]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 9D8AB1F0 for ; Wed, 15 Jul 2015 15:53:42 +0000 (UTC) Received: by pdbqm3 with SMTP id qm3so27196201pdb.0 for ; Wed, 15 Jul 2015 08:53:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:reply-to:sender:in-reply-to:references:from:date :message-id:subject:to:content-type; bh=/XItxjzy8U9lzERFWp5iGDrf5s2wX7YmsjNfD/i56EQ=; b=MfD64U0mkYe2Vf6ZD04zx4haSvDPEwDxbIt1TgJOZwdcZ1kArzkcj0Rtqb7UQk6F9u lKoSGkFoAWq2g6ajOErWHjLW15RGuFh0yWOz3lFzRNOmQZsQ+QMm+0rjRgluLqQUi7wo 2kSm7ZmUwnauvIK00MJMdEcNEiaK42gCUgVtZsfu5ZiA0JkiiQA5abAW9koWnyshhI4w Y0LnZ7SS6W4FtoVa2InMGr3QkOjIDpZb5AwkOVsiVIiAVKJ4qulUgT+Q37Qx7yyA7vw9 +G4lrfMa8m4HuuskHMRoC/OISwArlKUTC1gMnr7pOHiplqNNyl8PG+cDLikIcwg/Bgay 3MgQ== X-Received: by 10.66.186.138 with SMTP id fk10mr9253114pac.75.1436975622372; Wed, 15 Jul 2015 08:53:42 -0700 (PDT) MIME-Version: 1.0 Reply-To: buzz@spacedout.nl Sender: buzztiaan@gmail.com Received: by 10.66.84.166 with HTTP; Wed, 15 Jul 2015 08:53:22 -0700 (PDT) In-Reply-To: References: <24662b038abc45da7f3990e12a649b8a@airmail.cc> <55A66FA9.4010506@thinlink.com> <20150715151825.GB20029@savin.petertodd.org> From: Bastiaan van den Berg Date: Wed, 15 Jul 2015 17:53:22 +0200 X-Google-Sender-Auth: 4IPjaAndhlUuEsOt6sGtKGdA1kk Message-ID: To: bitcoin-dev@lists.linuxfoundation.org Content-Type: multipart/alternative; boundary=047d7bf0f40885c6a1051aebf5a9 X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: Re: [bitcoin-dev] Significant losses by double-spending unconfirmed transactions X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Jul 2015 15:53:43 -0000 --047d7bf0f40885c6a1051aebf5a9 Content-Type: text/plain; charset=UTF-8 On Wed, Jul 15, 2015 at 5:49 PM, Me via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > > > Blockcypher's "confidence factor" model(1) > > under the hood - yet another one of those sybil attacking network > > monitoring things > > > Peter, I noticed on your twitter you have a lot of bad things to say about > Blockcypher and their business model (which I might not full agree, but > totally respect), can you share any evidence they perform any form of Sybil > attack on the network, please. ? He says it -monitors- for such a attack, usually monitoring does not include causing it ;) -- buZz --047d7bf0f40885c6a1051aebf5a9 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On Wed, Jul 15, 2015 at 5:49 PM, Me via bitcoin-dev &= lt;bitcoin-dev@lists.linuxfoundation.org> wrote:
> Blockcypher's "confidence factor" model(1)
> under the hood - yet another one of those sybil attacking network
> monitoring things


Peter, I noticed on your twitter you have a lot of bad things to say= about Blockcypher and their business model (which I might not full agree, = but totally respect), can you share any evidence they perform any form of S= ybil attack on the network, please.

? He sa= ys it -monitors- for such a attack, usually monitoring does not include cau= sing it ;)

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