Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 3FBC4198F for ; Tue, 29 Sep 2015 17:51:36 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-ig0-f181.google.com (mail-ig0-f181.google.com [209.85.213.181]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id A1997273 for ; Tue, 29 Sep 2015 17:51:35 +0000 (UTC) Received: by igbni9 with SMTP id ni9so12791485igb.0 for ; Tue, 29 Sep 2015 10:51:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vinumeris.com; s=google; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=9PrBRst+ByTQV35CVhiga9ebiZdxUxJclI2/U7lmrM8=; b=XsMFYAyNYBhoIUJymRZuTU5CK63ptYgMw5e1pFd3ClE8NTrTJvTpt8BuOzjqSADZm8 qdMfgHLiaKlwVGKWwTMqohdmjupSkTFuGUvTjovf478tuXba2nvdexDiwt6CxIKg8Y5O 0OvR8LT2dI7UjVG6BnC5vCkTZlrcZLag8SKKc= 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:date :message-id:subject:from:to:cc:content-type; bh=9PrBRst+ByTQV35CVhiga9ebiZdxUxJclI2/U7lmrM8=; b=FtD2yo+/koh1rYy4w3aamwD0BHeJPM8neyjCGFguWkTuFxrMwwF5FHbEbfjU98LHQN E18INwdTtKcquvmNFrYI4vHiOXjQ7iS0CR6WPuq0H6f49GdsTxzamDG9Wu7me2OrqhOX FIpP62nRglsR1DiwwUCUxgx3H7XHltSS18o29/E4FWT2Qm6Imc7YVG0qPvqgTH7pmRfd XiR/Gf/wO57p/VVdJFd71s2L98O1+T9+G/wlB2vK866qg0Tx2EMfpLkUSLycifG9mcCK ayRfrYkmrkNN670t8lR+af3az3bve4g9Wne5t750p/woBiZ+Ov04zLP+zYzJ949pZ+Tm eYSg== X-Gm-Message-State: ALoCoQlsTDVRFlusLiV03LX8Yfjs7U8bgd1iWVtUyFJ6JixZQFpm87iz+ufuJvT5MZ+i37HT9vnI MIME-Version: 1.0 X-Received: by 10.50.30.130 with SMTP id s2mr20660832igh.69.1443549094818; Tue, 29 Sep 2015 10:51:34 -0700 (PDT) Received: by 10.50.226.144 with HTTP; Tue, 29 Sep 2015 10:51:34 -0700 (PDT) In-Reply-To: References: Date: Tue, 29 Sep 2015 19:51:34 +0200 Message-ID: From: Mike Hearn To: Allen Piscitello Content-Type: multipart/alternative; boundary=047d7bdc0d9c03a2a90520e6774e X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 Cc: Bitcoin Dev Subject: Re: [bitcoin-dev] Is it possible for there to be two chains after a hard fork? 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: Tue, 29 Sep 2015 17:51:36 -0000 --047d7bdc0d9c03a2a90520e6774e Content-Type: text/plain; charset=UTF-8 > > >because Bitcoin's basic security assumption is that a supermajority of > miners are 'honest.' > > Only if you rely on SPV. > No, you rely on miners honesty even if you run a full node. This is in the white paper. A dishonest miner majority can commit fraud against you, they can mine only empty blocks, they can do various other things that render your money worthless. --047d7bdc0d9c03a2a90520e6774e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
>because= Bitcoin's basic security assumption is that a supermajority of miners = are 'honest.'
Only if you rely= on SPV.

No, you rely on= miners honesty even if you run a full node. This is in the white paper. A = dishonest miner majority can commit fraud against you, they can mine only e= mpty blocks, they can do various other things that render your money worthl= ess.
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