Proof-of-work challenge

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You must complete this proof-of-work challenge before you can access this site.

Find an nonce that, when appended to the following data (after base64 decoding it), results in a SHA-256 hash that begins with at least 20 zero bits.

HlMX5igH5YAxfznIwZy35I6KtnnBla1ZgDi2EI6BWpo=

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JavaScript seems to be disabled. You must solve the challenge externally.

Several offline challenge solvers are available in C, Go, and Python.