user6901: im trying to build something in cardano, and i want to check if policy id provided by the user is an actual policyid?
after research i found that blake2b_224 is used for hashing the policy id,is there away to validate that a string was blake2b_224 hashed

user705: Beyond the length of the hash digest (28 bytes in this case), no. Unless you have the pre-image (that is, the raw policy script) in which case you can rehash it and compare.

6901: <p>im trying to build something in cardano, and i want to check if policy id provided by the user is an actual policyid?
after research i found that blake2b_224 is used for hashing the policy id,is there away to validate that a string was blake2b_224 hashed</p>
 705: <p>Beyond the length of the hash digest (28 bytes in this case), no. Unless you have the pre-image (that is, the raw policy script) in which case you can rehash it and compare.</p>
