java.lang.Object
- ch.bitagent.bitcoin.lib.block.Block

```
public class Block
extends Object
```
Block class.

Field Summary

Fields
Modifier and Type	Field	Description
`static Int`	`GENESIS_BLOCK`	Constant `GENESIS_BLOCK`
`static Int`	`LOWEST_BITS`	Constant `LOWEST_BITS`
`static Int`	`TESTNET_GENESIS_BLOCK`	Constant `TESTNET_GENESIS_BLOCK`

Constructor Summary

Constructors
Constructor	Description
`Block(Int version, byte[] prevBlock, byte[] merkleRoot, Int timestamp, byte[] bits, byte[] nonce)`	Constructor for Block.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`checkPow()`	Returns whether this block satisfies proof of work
`Int`	`difficulty()`	Returns the block difficulty based on the bits
`byte[]`	`getBits()`	Getter for the field `bits`.
`byte[]`	`getMerkleRoot()`	Getter for the field `merkleRoot`.
`byte[]`	`getNonce()`	Getter for the field `nonce`.
`byte[]`	`getPrevBlock()`	Getter for the field `prevBlock`.
`Int`	`getTimestamp()`	Getter for the field `timestamp`.
`Int`	`getVersion()`	Getter for the field `version`.
`byte[]`	`hash()`	Returns the hash256 interpreted little endian of the block
`boolean`	`isBip141()`	Returns whether this block is signaling readiness for BIP141
`boolean`	`isBip9()`	Returns whether this block is signaling readiness for BIP9
`boolean`	`isBip91()`	Returns whether this block is signaling readiness for BIP91
`static Block`	`parse(ByteArrayInputStream stream)`	Takes a byte stream and parses a block.
`Int`	`proof()`	proof.
`byte[]`	`serialize()`	Returns the 80 byte block header
`void`	`setTxHashes(List<byte[]> txHashes)`	Setter for the field `txHashes`.
`Int`	`target()`	Returns the proof-of-work target based on the bits
`boolean`	`validateMerkleRoot()`	Gets the merkle root of the tx_hashes and checks that it's the same as the merkle root of this block.

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

- Field Detail
  - GENESIS_BLOCK
```
public static final Int GENESIS_BLOCK
```
    Constant GENESIS_BLOCK
  - TESTNET_GENESIS_BLOCK
```
public static final Int TESTNET_GENESIS_BLOCK
```
    Constant TESTNET_GENESIS_BLOCK
  - LOWEST_BITS
```
public static final Int LOWEST_BITS
```
    Constant LOWEST_BITS
- Constructor Detail
  - Block
```
public Block(Int version,
             byte[] prevBlock,
             byte[] merkleRoot,
             Int timestamp,
             byte[] bits,
             byte[] nonce)
```
    Constructor for Block.
    
    Parameters:
    
    version - a Int object
    
    prevBlock - an array of byte objects
    
    merkleRoot - an array of byte objects
    
    timestamp - a Int object
    
    bits - an array of byte objects
    
    nonce - an array of byte objects
- Method Detail
  - parse
```
public static Block parse(ByteArrayInputStream stream)
```
    Takes a byte stream and parses a block. Returns a Block object
    
    Parameters:
    
    stream - a ByteArrayInputStream object
    
    Returns:
    
    a Block object
  - serialize
```
public byte[] serialize()
```
    Returns the 80 byte block header
    
    Returns:
    
    an array of byte objects
  - hash
```
public byte[] hash()
```
    Returns the hash256 interpreted little endian of the block
    
    Returns:
    
    an array of byte objects
  - isBip9
```
public boolean isBip9()
```
    Returns whether this block is signaling readiness for BIP9
    
    Returns:
    
    a boolean
  - isBip91
```
public boolean isBip91()
```
    Returns whether this block is signaling readiness for BIP91
    
    Returns:
    
    a boolean
  - isBip141
```
public boolean isBip141()
```
    Returns whether this block is signaling readiness for BIP141
    
    Returns:
    
    a boolean
  - target
```
public Int target()
```
    Returns the proof-of-work target based on the bits
    
    Returns:
    
    a Int object
  - difficulty
```
public Int difficulty()
```
    Returns the block difficulty based on the bits
    
    Returns:
    
    a Int object
  - proof
```
public Int proof()
```
    proof.
    
    Returns:
    
    a Int object
  - checkPow
```
public boolean checkPow()
```
    Returns whether this block satisfies proof of work
    
    Returns:
    
    a boolean
  - validateMerkleRoot
```
public boolean validateMerkleRoot()
```
    Gets the merkle root of the tx_hashes and checks that it's the same as the merkle root of this block.
    
    Returns:
    
    a boolean
  - getVersion
```
public Int getVersion()
```
    Getter for the field version.
    
    Returns:
    
    a Int object
  - getTimestamp
```
public Int getTimestamp()
```
    Getter for the field timestamp.
    
    Returns:
    
    a Int object
  - getPrevBlock
```
public byte[] getPrevBlock()
```
    Getter for the field prevBlock.
    
    Returns:
    
    an array of byte objects
  - getMerkleRoot
```
public byte[] getMerkleRoot()
```
    Getter for the field merkleRoot.
    
    Returns:
    
    an array of byte objects
  - getBits
```
public byte[] getBits()
```
    Getter for the field bits.
    
    Returns:
    
    an array of byte objects
  - getNonce
```
public byte[] getNonce()
```
    Getter for the field nonce.
    
    Returns:
    
    an array of byte objects
  - setTxHashes
```
public void setTxHashes(List<byte[]> txHashes)
```
    Setter for the field txHashes.
    
    Parameters:
    
    txHashes - a List object

Class Block

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GENESIS_BLOCK

TESTNET_GENESIS_BLOCK

LOWEST_BITS

Constructor Detail

Block

Method Detail

parse

serialize

hash

isBip9

isBip91

isBip141

target

difficulty

proof

checkPow

validateMerkleRoot

getVersion

getTimestamp

getPrevBlock

getMerkleRoot

getBits

getNonce

setTxHashes