Return-Path: Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 90DE2C002D for ; Sun, 12 Jun 2022 23:04:58 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 7918182F06 for ; Sun, 12 Jun 2022 23:04:58 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org X-Spam-Flag: NO X-Spam-Score: -2.101 X-Spam-Level: X-Spam-Status: No, score=-2.101 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: smtp1.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=protonmail.com Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tgKHraTzJGIJ for ; Sun, 12 Jun 2022 23:04:57 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from mail-4316.protonmail.ch (mail-4316.protonmail.ch [185.70.43.16]) by smtp1.osuosl.org (Postfix) with ESMTPS id 9F1AF82E95 for ; Sun, 12 Jun 2022 23:04:57 +0000 (UTC) Date: Sun, 12 Jun 2022 23:04:47 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1655075095; x=1655334295; bh=zKjvTXgzcxovJt9IVilT/e1+KcXRi+T9/hdkh8jAFus=; h=Date:To:From:Reply-To:Subject:Message-ID:Feedback-ID:From:To:Cc: Date:Subject:Reply-To:Feedback-ID:Message-ID; b=PzKUnI7LF67UpTwBgYwwnB5KkzcfqlJYA2LbbgO4LJDwAe+BqogoUScbaD8BirFT5 7cJLPwBMQYK+bBU9LaP+6WBgxPAqE1C6eShrXcSYnu0w1ptwmbzG1LRuxil1D4QvN0 18+iJE1xhy4JBB4yJhvAfycgr9MyTKTZBnpoT61hOlMx7hMkIrNaIriHFRAOqIPAPI mHxgDsh7WEQegX/2KpTRDA0L3f9NoUteeSfOFeFg1Alolnq8zduMT9swAm/JKkCQ6J khTB30ZRUItXsFzPuB5avcpExs9vF+ajy1ZcwspuE57OCwZWz9Re/4pI1SfAxh7grA /vd48HkojAsOA== To: Bitcoin Protocol Discussion From: AdamISZ Reply-To: AdamISZ Message-ID: Feedback-ID: 11565511:user:proton MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailman-Approved-At: Sun, 12 Jun 2022 23:12:12 +0000 Subject: [bitcoin-dev] RIDDLE: Lightweight anti-Sybil with anonymity in Bitcoin X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Jun 2022 23:04:58 -0000 List denizens, As per the title, a suggested protocol for doing anti-Sybil that isn't too = demanding for the users, but actually keeps a decent level of privacy. Notice how it's mostly focused on a user/customer of a service/product/webs= ite, but it could conceivably useful in e.g. anti-Sybil in things like Ligh= tning. Sorry that as usual I write rather long but there are several conveniently = arranged sections you can click on :) https://gist.github.com/AdamISZ/51349418be08be22aa2b4b469e3be92f (with apologies for my backronym-ing sins) Cheers, waxwing/AdamISZ Sent with Proton Mail secure email.