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dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:01_block:start
Table of Contents
A.1.1 Block Class
The Block Class represents a block used by Ethereum Blockchain. A block is a package of data that contains zero or more transactions.
Figure 1: The Ethereum Block Class
Id
| Description | The unique id for the Block |
|---|---|
| Datatype | text (block-hash) |
| Example | 0x000000708550f340a1297eefe721a3b0631d8dc4cc5a3462abaeef1a79726f6b |
Number
| Description | Block height |
|---|---|
| Datatype | numeric |
| Example | 5537029 |
Hash
| Description | Hash of the Block Headwr |
|---|---|
| Datatype | text |
| Example | 0x000000708550f340a1297eefe721a3b0631d8dc4cc5a3462abaeef1a79726f6b |
Parent Hash
| Description | Hash of the preceding Block |
|---|---|
| Datatype | text |
| Example | 0x3102ee1ed005d33fecb07105fb36d4b3113f6cf0c8a87316095bbc2fb15f717d |
Nonce
| Description | Value in a block which can be adjusted in order to try to satisfy the proof of work condition. Guard against replay attacks. |
|---|---|
| Datatype | text |
| Example | 0x7cd714340ea379db |
Step
| Description | |
|---|---|
| Datatype | text |
| Example | NULL |
Signature
| Description | The identifier of the sender. This is generated when the sender's private key signs the transaction and confirms the sender has authorised this transaction |
|---|---|
| Datatype | text |
| Example | NULL |
Sha3 Uncles
| Description | SHA3 hash of the uncles data in the block |
|---|---|
| Datatype | text |
| Example | 0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347 |
Logs Bloom
| Description | A kind of index about the data contained in the block, used in native queries to the blockchain via the node |
|---|---|
| Datatype | text |
| Example | 0x22293840281b28808259200ec8300080202058ac0a10094400002f01002a84680808027610e5cd202212068002310c4212536420008584840040220000e1280 c024002412902149d5110490881048895540e410200a84140801343e40305109008200620024e401012484010000908010344a0044e2da0e44004101505b42020 3320900050010082942001010404d01413a0803152c802b4cc048000000ea0000204165e004961341750a0095d40980400008413000280020b32c040041c50032 01a0702090c62120031000408002202280a200c900a808504000026200460090071011220e68c4c04008ce19423e9a4d26e6222008000810428100408004114 |
Transaction Root
| Description | A kind of index about the data contained in the block, used in native queries to the blockchain via the node |
|---|---|
| Datatype | text |
| Example | 0x044c55caebe5fd0bc30584ee7d9f1ee2477ffde2ff4e5d7952b6af9fbc4a8f21 |
State Root
| Description | A kind of index about the data contained in the block, used in native queries to the blockchain via the node |
|---|---|
| Datatype | text |
| Example | 0xbc7f1066555871619efdb379b00cbb6ff97fc54a27ba6ca7e7da579aa1f1f0c0 |
Receipts Root
| Description | A kind of index about the data contained in the block, used in native queries to the blockchain via the node |
|---|---|
| Datatype | text |
| Example | 0x199d5e3930ce6e90e07a156cb23bf653f5edf5041d28cc56c6375d2fab004928 |
Miner
| Description | Miner address that solved the block |
|---|---|
| Datatype | text |
| Example | 0x5a0b54d5dc17e0aadc383d2db43b0a0d3e029c4c |
Difficulty
| Description | Difficulty to solve the block |
|---|---|
| Datatype | numeric |
| Example | 3.12393E+15 |
Total Difficulty
| Description | Total difficulty of the chain until this block |
|---|---|
| Datatype | numeric |
| Example | 3.94E+21 |
Extra Data
| Description | Additional data to provide from the miner |
|---|---|
| Datatype | text |
| Example | 0x7433 |
Size
| Description | Block size in byte |
|---|---|
| Datatype | numeric |
| Example | 19739 |
Gas Limit
| Description | Maximum set gas limit |
|---|---|
| Datatype | numeric |
| Example | 8000029 |
Gas Used
| Description | Used gas |
|---|---|
| Datatype | numeric |
| Example | 7983637 |
Timestamp
| Description | Timestamp of the block |
|---|---|
| Datatype | timestamp with time zone |
| Example | 2018-05-01 09:17:18+00 |
Uncles
| Description | Hashes / IDs of uncles (/ ommers) |
|---|---|
| Datatype | text |
| Example | {0xcc73f71a3244c4d2ac023850e827eca055bfa5945f4670a5bf947f51c68f029d} |
Seal Fields
| Description | |
|---|---|
| Datatype | text |
| Example | {0xa06ba3d921ce91951e59aca3406eee2da806c2e6596d12cca02a2b88c0830104e9,0x887cd714340ea379db} |
Mix Hash
| Description | A 256-bit hash which, combined with the nonce, proves that a sufficient amount of computation has been carried out on this block; |
|---|---|
| Datatype | text |
| Example | 0x6ba3d921ce91951e59aca3406eee2da806c2e6596d12cca02a2b88c0830104e9 |
dido/public/s_cli/05_contents/03_prt/08_basic_dido_objects/01_block/start.txt · Last modified: 2021/08/13 13:00 by murphy
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