Nodes collect new transactions into a block, hash them into a hash tree, and scan through nonce values to make the block's hash satisfy proof-of-work requirements. When they solve the proof-of-work, they broadcast the block to everyone and the block is added to the block chain. The first transaction in the block is a special one that creates a new coin owned by the creator of the block.
Declared in <primitives/block.h>
class CBlockHeader;| Name | Description |
|---|---|
CBlockHeader [constructor] | Constructs a null block header. |
GetBlockTime | Returns the block creation time. |
GetHash | Computes the block hash by hashing the serialized header. |
IsNull | Returns true when the header has no proof-of-work target set. |
SetNull | Resets all header fields to their null state. |
Time | Returns the block time as a chrono time point. |
| Name | Description |
|---|---|
hashMerkleRoot | Merkle root of the transactions in the block. |
hashPrevBlock | Hash of the previous block header in the chain. |
nBits | Compact representation of the proof-of-work difficulty target. |
nNonce | Nonce varied during mining to satisfy the proof-of-work target. |
nTime | Block creation time, as a Unix timestamp in seconds. |
nVersion | Block version number, signaling supported consensus rules. |
| Name | Description |
|---|---|
DecodeHexBlockHeader | Decode a hex-encoded serialized block header. |
GetBlockProof | Compute how much work a block header corresponds to. |
node::UpdateTime | Update a block header's time field and return the new time. |
| Name | Description |
|---|---|
CBlock | A full block, extending the header with its transactions and cached check flags. |