[Bitcoin-development] Suggestion for enhancements to getblock

[Gregory Maxwell]

On Thu, Jul 7, 2011 at 11:42 AM, Mike Hearn <mike at plan99.net> wrote:
[snip]
> You have to treat appearing deep in the chain as ipso-facto proof of
> validity. Lightweight/SPV clients simply must have that trust, it
> cannot be done any other way. See this article:
>
> http://code.google.com/p/bitcoinj/wiki/SecurityModel


It _could_ be done another way, with a protocol change:
http://forum.bitcoin.org/index.php?topic=21995.0