```
public class ProofOfWork
extends Object
```
This class models the proof of work for a given public key. Hence, identity creation becomes an expensive operation and sybil attacks should be made more difficult.

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`
`static ProofOfWork`	`generateProofOfWork(CompressedPublicKey publicKey, short difficulty)`
`static short`	`getDifficulty(ProofOfWork proofOfWork, CompressedPublicKey publicKey)`
`int`	`getNonce()`
`int`	`hashCode()`
`void`	`incNonce()`
`int`	`intValue()`	Returns the value of this `ProofOfWork` as an `int`.
`boolean`	`isValid(CompressedPublicKey publicKey, short difficulty)`
`static ProofOfWork`	`of(int nonce)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

intValue
```
public int intValue()
```
Returns the value of this ProofOfWork as an int.

public static ProofOfWork of(int nonce)

public static ProofOfWork generateProofOfWork(CompressedPublicKey publicKey,
                                              short difficulty)

public boolean isValid(CompressedPublicKey publicKey,
                       short difficulty)

public static short getDifficulty(ProofOfWork proofOfWork,
                                  CompressedPublicKey publicKey)

Class ProofOfWork