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author | Newsletter Catcher <newsletters@briancloutier.com> | 2021-12-18 00:36:07 -0800 |
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committer | bitcoindev <bitcoindev@gnusha.org> | 2021-12-18 08:36:22 +0000 |
commit | e2a67f3100d99ef54d9accc56b92768a8f4d79f5 (patch) | |
tree | 4c6f8a3cfc454042ec29e5ac974423174cc4eaf7 | |
parent | 9d0fc1c4adbd235e346f156df18894de2ca38a25 (diff) | |
download | pi-bitcoindev-e2a67f3100d99ef54d9accc56b92768a8f4d79f5.tar.gz pi-bitcoindev-e2a67f3100d99ef54d9accc56b92768a8f4d79f5.zip |
Re: [bitcoin-dev] Globally Broadcasting Workshares to Improve Finality Heuristics
-rw-r--r-- | f8/c841f120f0ca49cbc5527ee3ce9821e617d550 | 178 |
1 files changed, 178 insertions, 0 deletions
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boundary="000000000000af236105d3678c24" +X-Mailman-Approved-At: Sat, 18 Dec 2021 09:56:47 +0000 +Subject: Re: [bitcoin-dev] Globally Broadcasting Workshares to Improve + Finality Heuristics +X-BeenThere: bitcoin-dev@lists.linuxfoundation.org +X-Mailman-Version: 2.1.15 +Precedence: list +List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org> +List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe> +List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/> +List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org> +List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help> +List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe> +X-List-Received-Date: Sat, 18 Dec 2021 08:36:22 -0000 + +--000000000000af236105d3678c24 +Content-Type: text/plain; charset="UTF-8" + +It's not exactly what you're looking for but this is very similar to the +premise of Bobtail, which was presented at Scaling Bitcoin a few years ago: +https://arxiv.org/abs/1709.08750 + +On Fri, Dec 17, 2021, 10:54 Jeremy via bitcoin-dev < +bitcoin-dev@lists.linuxfoundation.org> wrote: + +> An interesting concept occurred to me today while chatting with Nic Carter. +> +> If we set Bitcoin Core up to gossip headers for work shares (e.g., +> expected 500 headers per block would have 20kb overhead, assuming we don't +> need to send the prev hash) we'd be able to have more accurate finality +> estimates and warnings if we see hashrate abandoning our chain tip. This is +> observable regardless of if dishonest miners choose not to publish their +> work on non tip shares, since you can notice the missing work. +> +> In the GUI, we could give users an additional warning if they are +> accepting a payment during a sudden hashrate decrease that they might wait +> longer. +> +> Has this been discussed before? +> +> Cheers, +> +> Jeremy +> +> -- +> @JeremyRubin <https://twitter.com/JeremyRubin> +> <https://twitter.com/JeremyRubin> +> _______________________________________________ +> bitcoin-dev mailing list +> bitcoin-dev@lists.linuxfoundation.org +> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev +> + +--000000000000af236105d3678c24 +Content-Type: text/html; charset="UTF-8" +Content-Transfer-Encoding: quoted-printable + +<div dir=3D"auto"><div>It's not exactly what you're looking for but= + this is very similar to the premise of Bobtail, which was presented at Sca= +ling Bitcoin a few years ago:=C2=A0<a href=3D"https://arxiv.org/abs/1709.08= +750">https://arxiv.org/abs/1709.08750</a><br><br><div class=3D"gmail_quote"= +><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Dec 17, 2021, 10:54 Jeremy v= +ia bitcoin-dev <<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org"= +>bitcoin-dev@lists.linuxfoundation.org</a>> wrote:<br></div><blockquote = +class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid= +;padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"f= +ont-family:arial,helvetica,sans-serif;font-size:small;color:#000000">An int= +eresting concept occurred to me today while chatting with Nic Carter.</div>= +<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri= +f;font-size:small;color:#000000"><br></div><div class=3D"gmail_default" sty= +le=3D"font-family:arial,helvetica,sans-serif;font-size:small;color:#000000"= +>If we set Bitcoin Core up to gossip headers for work shares (e.g., expecte= +d 500 headers per block would have 20kb overhead, assuming we don't nee= +d to send the prev hash) we'd be able to have more accurate finality es= +timates and warnings if we see hashrate abandoning our chain tip. This is o= +bservable regardless of if dishonest miners choose not to publish their wor= +k on non tip shares, since you can notice the missing work.</div><div class= +=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz= +e:small;color:#000000"><br></div><div class=3D"gmail_default" style=3D"font= +-family:arial,helvetica,sans-serif;font-size:small;color:#000000">In the GU= +I, we could give users an additional warning if they are accepting=C2=A0a p= +ayment during a sudden hashrate decrease that they might wait longer.</div>= +<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri= +f;font-size:small;color:#000000"><br></div><div class=3D"gmail_default" sty= +le=3D"font-family:arial,helvetica,sans-serif;font-size:small;color:#000000"= +>Has this been discussed before?</div><div class=3D"gmail_default" style=3D= +"font-family:arial,helvetica,sans-serif;font-size:small;color:#000000"><br>= +</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,san= +s-serif;font-size:small;color:#000000">Cheers,</div><div class=3D"gmail_def= +ault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small;color= +:#000000"><br></div><div class=3D"gmail_default" style=3D"font-family:arial= +,helvetica,sans-serif;font-size:small;color:#000000">Jeremy</div><br clear= +=3D"all"><div><div dir=3D"ltr" data-smartmail=3D"gmail_signature"><div dir= +=3D"ltr">--<br><a href=3D"https://twitter.com/JeremyRubin" target=3D"_blank= +" rel=3D"noreferrer">@JeremyRubin</a><a href=3D"https://twitter.com/JeremyR= +ubin" target=3D"_blank" rel=3D"noreferrer"></a></div></div></div></div> +_______________________________________________<br> +bitcoin-dev mailing list<br> +<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank" = +rel=3D"noreferrer">bitcoin-dev@lists.linuxfoundation.org</a><br> +<a href=3D"https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev" = +rel=3D"noreferrer noreferrer" target=3D"_blank">https://lists.linuxfoundati= +on.org/mailman/listinfo/bitcoin-dev</a><br> +</blockquote></div></div></div> + +--000000000000af236105d3678c24-- + |