A caching streak requires you to find at least one cache every day, and for this challenge you need to keep going for 365 days or more. When I got into caching I was lucky enough to be advised to start a streak early on if I wanted to get it done, so that there would be enough caches to choose from in the area. This resulted in a rash decision to find a cache a day for a whole year. It was definately a challenge and I eventually stopped after 415 days - it actually felt quite strange not to have to head out and find a cache. This challenge lead me to become used to caching in all weather, in the dark, in my work uniform, and having to save up the new caches for later on. It was a lot of fun.
So if you've managed to keep a caching streak going for over 365 days then well done, you can now sign the log on this challenge cache. Note that the log can be signed at any time, but it can only be logged online once you meet the requirements. For more information on challenge caches have a look at http://support.groundspeak.com/index.php?pg=kb.page&id=206
To prove you meet the requiremets you just need to check your statistics and post like this;
Longest Streak
415 consecutive days with finds from 4.12.2014 to 22.1.2016