From: Jesus Cea <jcea@jcea•es>
To: bitcoin-development@lists•sourceforge.net
Subject: Re: [Bitcoin-development] Chain pruning
Date: Thu, 10 Apr 2014 23:34:29 +0200 [thread overview]
Message-ID: <53470E65.5080402@jcea.es> (raw)
In-Reply-To: <CAPg+sBg88Q1Ddwsvuk3-17wO=0DF7L1wtxx4mWUoiV1=cWKhEQ@mail.gmail.com>
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On 10/04/14 18:59, Pieter Wuille wrote:
> It's important to
> note that this is a strict reduction in security: we're now trusting
> that the longest chain (with most proof of work) commits to a valid
> UTXO set (at some point in the past).
AFAIK, current bitcoin code code already set blockchain checkpoints from
time to time. It is a garanteed that a longer chain starting before the
checkpoint is not going to be accepted suddently. See
<https://bitcointalk.org/index.php?topic=194078.0>.
Could be perfectly valid to store only unspend wallets before last
checkpoint, if during the blockchain download the node did all the checks.
Would be interesting, of course, to be able to verify "unspend wallet
accounting" having only that checkpoint data (the merkle tree can do
that, I guess). So you could detect a data corruption or manipulation in
your local harddisk.
--
Jesús Cea Avión _/_/ _/_/_/ _/_/_/
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next prev parent reply other threads:[~2014-04-10 21:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-10 11:37 Mike Hearn
2014-04-10 11:57 ` Wladimir
2014-04-10 12:10 ` Gregory Maxwell
2014-04-10 14:19 ` Wladimir
2014-04-10 16:23 ` Brian Hoffman
2014-04-10 16:28 ` Mike Hearn
2014-04-10 16:47 ` Brian Hoffman
2014-04-10 16:54 ` Ricardo Filipe
2014-04-10 16:56 ` Brian Hoffman
2014-04-10 16:59 ` Pieter Wuille
2014-04-10 17:06 ` Brian Hoffman
2014-04-10 18:19 ` Paul Rabahy
2014-04-10 18:32 ` Pieter Wuille
2014-04-10 20:12 ` Tier Nolan
2014-04-10 20:29 ` Pieter Wuille
2014-04-10 19:36 ` Mark Friedenbach
2014-04-10 21:34 ` Jesus Cea [this message]
2014-04-10 22:15 ` Mark Friedenbach
2014-04-10 22:24 ` Jesus Cea
2014-04-10 22:33 ` Gregory Maxwell
2014-04-10 16:52 ` Ricardo Filipe
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