This is not very new idea, I think this is first PoC I can find quickly: https://bitcointalk.org/index.php?topic=166417.0 https://bitcointalk.org/index.php?topi

This is not very new idea, I think this is first PoC I can find quickly: https://bitcointalk.org/index.php?topic=166417.0 https://bitcointalk.org/index.php?topic=166417.0 Given current network difficulty, this won't earn 0.000001 $ per impression (more exact calculations are needed)