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Date: Wed, 8 Jan 2014 20:38:14 +0100
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From: =?ISO-8859-1?Q?Cl=E9ment_Elbaz?= <clem.ds@gmail.com>
To: bitcoin-development@lists.sourceforge.net
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Subject: [Bitcoin-development] Getting trusted metrics from the block chain
 in an untrusted environment ?
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Hello all,

I'm designing a program that needs some metrics computed from the Bitcoin
block chain (some address balances, or the occurrence or not of a specific
transaction). The kind of infos you get from http://blockchain.info/,
provided you trust this website (my program do not).

My program should run on lightweight/embedded hardware. The execution
environment provides access to the Bitcoin network but not enough resources
to set up a trusted node along with my program. Also, my program trusts the
global Bitcoin network but no individual node.

I would need a way to ask an untrusted Bitcoin node to compute some 'metric
request' on my behalf and having the result of that metric request
validated by the network.

Is there any available or work-in-progress projects that would come close
to this need ? Or should I do it myself ? :-)

Thank you all,

Cl=E9ment Elbaz

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<div dir=3D"ltr">Hello all,<br><br>I&#39;m designing a program that needs s=
ome metrics computed from the Bitcoin block chain (some address balances, o=
r the occurrence or not of a specific transaction). The kind of infos you g=
et from <a href=3D"http://blockchain.info/">http://blockchain.info/</a>, pr=
ovided you trust this website (my program do not).<br>
<br>My program should run on lightweight/embedded hardware. The execution e=
nvironment provides access to the Bitcoin network but not enough resources =
to set up a trusted node along with my program. Also, my program trusts the=
 global Bitcoin network but no individual node.<br>
<br>I would need a way to ask an untrusted Bitcoin node to compute some =
9;metric request&#39; on my behalf and having the result of that metric req=
uest validated by the network.<br><br>Is there any available or work-in-pro=
gress projects that would come close to this need ? Or should I do it mysel=
f ? :-)<br>
<br>Thank you all,<br><br>Cl=E9ment Elbaz<br>
</div>

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