reset

Mersenne Tree

h(x) =4f8f0d814ca447fcc9165419960228c426ae91e5e78a0e1ee513f201e423c01e

Solution

author: unknown

h(x) looks like a cryptographic hash, and refreshing the page shows it changes every 5s. We find that the SHA256 hash of the unix time (floored by 5 seconds) gives us the same hash. Thus the answer is the current unix time (and values within ± a minute are accepted).