Pocket CTFHard
ReferenceSwitch trackShort PIN Audit
A three-digit training PIN was hashed once with SHA-256. Audit its complete 000–999 keyspace locally.
SHA-256: f24f1a64b591544a871284bdde332d3c5d2cb109d21c03122c57d768e7c535b1
Then test the recovered value at /api/hard/safe?pin=NNN.