[alexee]

Suggestion to make it with lesser scope, but with verifiable contracts, so you can automatically verify that it was done. I'd actually use that service myself :)

For example: 1) Run 10K on Strava. 2) Solve programming challenge on Codeforces/TopCoder. 3) Pass coursera class. 4) Have X bitcoins on your wallet 5) Check-in in some specific location.

[joshschreuder]

I think there is an Oracle problem here with trying to bring in data from external services

https://www.slideshare.net/mobile/InfoQ/blockchain-the-oracl...