Architect
Genesis
Difficulty
External Account
Create
List
Balance
Unlock
Mining
Transfer Transaction
Transaction
| Field | Type | Description |
|---|---|---|
| from | Address | the payer’s external account address |
| to | Address | the receiver’s external account address |
| value | ether, wei, dai, szable | money to transfer |
| nonce | integer | incremental number for a account, to identify each tx created by a account |
| blockHash | hash256 | hash of mined block, 0x000… if not mined yet |
| blockNumber | integer | sequence number of mined block, 0 if not mined yet |
| gas | integer | fee = gas * gasPrice, declared only, changes may return to sender if (fee - gasUsed) > 0 |
| gasPrice | ether, wei ,dai, etc | fee = gas * gasPrice |
| transactionIndex | int | position index in a block |
TransactionReceipt
| Field | Type | Description |
|---|---|---|
| blockHash | hash256 | … |
| blockNumber | int | … |
| contractAddress | Address | null if in transfer transaction |
| cumulativeGasUsed | ether | ? |
| from | Address | … |
| gasUsed | ether | actually used fee |
| logs | Array of ? | ? |
| root | Hash256 | ? |
| to | Address | |
| transactionHash | Hash256 | … |
| transactionIndex | int | … |
Contract Creation Transaction
Contract Account
External Account Call A Contract
Contract Calls Another Contract
Virtual Machine
Instructions(OpCodes, Operations) related with operating DB
Solc etc: From High-level script to ByteCodes(OpCodes)
Database
Sorted Table(*.sst, *.ldb)
Operation sequence(*.log)
Mainfest
Current
LOG file
Export and Import
Block ⇒ DB
DB ⇒ Block
$ ./geth export blocks.-.chain
$ hexdump -Cv blocks.-.chain
Appendix
Notes
Transfer Transaction: directly operate DB by node miner.
Transaction to call a contract: indirectly operate DB by VM with predefined VM ByteCode compiled from High-Level script).