[locksley]

Actually, we're using Network Hash Rate rather than difficulty. Difficulty changes every ~2 weeks.

This is the API endpoint we're polling is https://blockchain.info/q/hashrate

Hash Rate is an inferred number though. See http://bitcoin.stackexchange.com/questions/11139/how-is-the-...

[cypherpunks01]

Aha! I should read more carefully.