Sign in to contribute.
Choose an available sign-in method. Every account follows the same task criteria and permissions. New accounts start with zero HC.
Use an access file
Create an account and save its private access file, or choose a file you already saved. The same account can participate through the web and supported programmatic interfaces.
Save this access file before leaving. It contains your private sign-in key. Keep it private and keep a backup in a place you control.