public inbox for bitcoindev@googlegroups.com
 help / color / mirror / Atom feed
From: digitsu@gmail.com
To: "Anthony Towns" <aj@erisian.com.au>
Cc: bitcoin-dev@lists.linuxfoundation.org
Subject: Re: [bitcoin-dev] Let's deploy BIP65 CHECKLOCKTIMEVERIFY!
Date: Mon, 12 Oct 2015 00:02:51 -0700 (PDT)	[thread overview]
Message-ID: <1444633370859.8a298e9c@Nodemailer> (raw)
In-Reply-To: <20151007150014.GA21849@navy>

[-- Attachment #1: Type: text/plain, Size: 1748 bytes --]

Thanks for that great breakdown Anthony. I think it helps a lot of us get a better handle on the matter without getting too technical. 


A couple of questions on some of the points you made I'd like to put out there:




First I think your unsaid assumption about the fragility of a soft fork showing incorrect confirmations is dependent on the percentage of hash power that didn't upgrade.  If using your same numbers this was only 5% of the hash power, the attack is effectively not effective (u less the attacker knew an exact merchant that was unfortunately on the minority of the network. 




-- snip --


 - non-upgraded bitcoin nodes: total breakage. there will be a push

   alert telling you to upgrade. anyone who doesn't will think they're

   tracking "bitcoin" but will actually be tracking a new "bitcoin-old"

   altcoin. most non-upgraded miners will presumably realise they're

   wasting hashpower and stop doing this pretty quick; and remaining

   miners will only create blocks very slowly due to sudden reduced

   hashpower, without possibility of difficulty adjustment. 

----




Is this true? I thought that un-upgraded nodes would just dump the new blocks from the upgraded miner majority as invalid. This how would they even know (besides the PSA) that they were on the wrong side? 




----snip---

users who

   don't uprade will try to do transactions, but won't see them confirm

   for hours or days due to lack of hashpower.






----




But only for txns for users who are using the new OP code right? Regular transactions will get relayed by both upgraded and in-upgraded nodes and miners alike. 








—
Regards,

[-- Attachment #2: Type: text/html, Size: 2507 bytes --]

  parent reply	other threads:[~2015-10-12  7:02 UTC|newest]

Thread overview: 101+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-27 18:50 [bitcoin-dev] Let's deploy BIP65 CHECKLOCKTIMEVERIFY! Peter Todd
2015-09-27 20:26 ` jl2012
2015-09-27 20:27   ` Peter Todd
2015-09-27 20:27 ` Mark Friedenbach
2015-09-27 20:41 ` Btc Drak
2015-09-28 10:10 ` s7r
2015-09-28 10:48 ` Mike Hearn
2015-09-28 11:00   ` Adam Back
2015-09-28 11:40     ` Mike Hearn
2015-09-28 12:20       ` Eric Lombrozo
2015-09-28 12:26         ` Mike Hearn
2015-09-28 12:44           ` Eric Lombrozo
2015-09-28 12:54             ` Mike Hearn
2015-09-29  6:17               ` Eric Lombrozo
2015-09-29 12:02                 ` Mike Hearn
2015-09-28 14:05       ` Btc Drak
2015-09-28 14:17         ` Mike Hearn
2015-09-28 21:12     ` odinn
2015-09-28 22:16       ` Dave Scotese
2015-09-28 11:04   ` Eric Lombrozo
2015-09-28 12:47   ` Tier Nolan
2015-09-28 13:01   ` Gavin Andresen
2015-09-28 13:28     ` Peter Todd
2015-09-28 13:43       ` Gavin Andresen
2015-09-28 14:14         ` Peter Todd
2015-09-28 13:21   ` Peter Todd
2015-09-28 13:41     ` Mike Hearn
2015-09-28 14:29       ` Peter Todd
2015-09-28 14:33         ` Mike Hearn
2015-09-28 14:43           ` Peter Todd
2015-09-28 14:51             ` Mike Hearn
2015-09-28 15:05               ` Peter Todd
2015-09-28 15:38                 ` Mike Hearn
2015-09-28 16:52                   ` jl2012
2015-09-28 17:14                     ` Mike Hearn
2015-09-28 23:17                       ` Jorge Timón
2015-09-29 12:07                         ` Mike Hearn
2015-09-29 15:09                           ` [bitcoin-dev] Why soft-forks? was: " Santino Napolitano
2015-09-29 13:30             ` [bitcoin-dev] " Jonathan Toomim (Toomim Bros)
2015-09-29 15:59               ` jl2012
2015-09-29 19:54                 ` odinn
2015-09-29 18:31   ` Gregory Maxwell
2015-09-30 17:11     ` Mike Hearn
2015-09-30 17:58       ` Jorge Timón
2015-10-01 14:23         ` Tom Harding
2015-09-30 18:15       ` Adam Back
2015-09-30 19:26       ` Jeff Garzik
2015-09-30 19:56         ` Mike Hearn
2015-09-30 20:37           ` Jorge Timón
2015-09-30 21:06             ` Mike Hearn
2015-09-30 22:14               ` Jorge Timón
2015-10-01  0:11                 ` Jorge Timón
2015-09-30 22:17           ` Jeff Garzik
2015-09-30 23:25             ` Gregory Maxwell
2015-09-30 20:15       ` Gregory Maxwell
2015-09-30 21:01         ` Mike Hearn
2015-09-30 22:59           ` Gregory Maxwell
2015-10-01  4:08           ` [bitcoin-dev] Crossing the line? [Was: Re: Let's deploy BIP65 CHECKLOCKTIMEVERIFY!] Tao Effect
2015-10-01 16:39             ` Jeff Garzik
2015-10-01 20:17               ` Milly Bitcoin
2015-10-02 12:23               ` Mike Hearn
2015-10-02 13:14                 ` jl2012
2015-10-02 14:10                   ` Marcel Jamin
2015-10-02 16:37                 ` Gregory Maxwell
2015-10-07 15:00     ` [bitcoin-dev] Let's deploy BIP65 CHECKLOCKTIMEVERIFY! Anthony Towns
2015-10-07 15:46       ` Jonathan Toomim (Toomim Bros)
2015-10-07 16:02         ` Eric Lombrozo
2015-10-07 16:25           ` Eric Lombrozo
2015-10-07 16:26           ` Jonathan Toomim (Toomim Bros)
2015-10-07 16:38         ` Anthony Towns
2015-10-10  7:23       ` Anthony Towns
2015-10-12  7:02       ` digitsu [this message]
2015-10-12 16:33         ` Anthony Towns
2015-10-12 17:06         ` Anthony Towns
2015-10-13  0:08           ` digitsu
2015-09-29 20:03 ` Wladimir J. van der Laan
2015-09-30  4:05   ` Rusty Russell
2015-09-30  6:19     ` Adam Back
2015-09-30 12:30       ` Mike Hearn
2015-09-30 15:55         ` Jorge Timón
2015-09-30 19:17           ` John Winslow
2015-10-01  0:06             ` Rusty Russell
2015-09-30 17:14         ` Adam Back
2015-10-01  0:04       ` Rusty Russell
2015-10-02  1:57 NotMike Hearn
2015-10-02  2:12 ` GC
2015-10-05 10:59   ` Mike Hearn
2015-10-05 11:23     ` Jeff Garzik
2015-10-05 11:28       ` Mike Hearn
2015-10-05 12:04         ` Jorge Timón
2015-10-05 12:08           ` Clément Elbaz
2015-10-05 12:16             ` Jorge Timón
2015-10-05 12:29               ` Clément Elbaz
2015-10-05 15:42                 ` Jorge Timón
2015-10-05 12:10           ` Mike Hearn
2015-10-05 15:33             ` Jorge Timón
2015-10-05 16:46               ` Mike Hearn
2015-10-06  6:20                 ` Anthony Towns
2015-10-07  6:13                 ` Micha Bailey
2015-10-05 13:29   ` Jorge Timón
2015-10-05 13:24 ` Jorge Timón

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1444633370859.8a298e9c@Nodemailer \
    --to=digitsu@gmail.com \
    --cc=aj@erisian.com.au \
    --cc=bitcoin-dev@lists.linuxfoundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox