PUZZLE #4313: SHA-256 Collision (prefix 7c11)

hash-prefix learn difficulty: 2/7 compute author: system unsolved

Find a string whose SHA-256 hash starts with '7c11'. The known solution uses the format: 7c11+number.

DATA

Target Prefix	`7c11`
Difficulty	`2`
Bits	`16`
Hint	`Find any string whose SHA-256 hash starts with '7c11'. Try appending numbers to the prefix until the hash matches.`
Answer Format	`any string whose SHA-256 starts with the given prefix`

{
  "type": "hash-prefix",
  "target_prefix": "7c11",
  "difficulty": 2,
  "bits": 16,
  "hint": "Find any string whose SHA-256 hash starts with '7c11'. Try appending numbers to the prefix until the hash matches.",
  "answer_format": "any string whose SHA-256 starts with the given prefix"
}

author's note: Pool fill: hash-prefix diff 2