GPG error with debs

[Foxy]

Adriano Winter Bess wrote:

>Hi,
>
>I don't know if this the right place to report this, but I'm using debs from
>oscillation repository and I'm getting the following errors:
>
>W: GPG error: http://www.os-works.com testing Release: The following signatures
>couldn't be verified because the public key is not available: NO_PUBKEY
>CF455A0A8AC2C0A6
>
>Does anyone knows how to fix it?
>
>Regards,
>Adriano
>  
>
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there is a thread on oscillation forum about how to get a public key. 
What distro do yo use?