VEP 8: AccountBlock Data Content Type Definition
Background
In general, the data field in account block can be used to carry additional information to meet specific demands when sending transaction through tx_sendRawTx API.
This document explains the content definition in details.
Implementation
We propose to set a 2-byte content type flag at beginning of data field to indicate what type of data is followed.
Content type is a uint16 number stored in big endian format. Number 1 (0x0001) - 2048 (0x0800) are reserved and should not be used by a third party.
Restriction
It is known that content type might be occasionally mis-recognized under the situation calling a smart contract, due to messing-up with the first 2 bytes of a hitting method hash.
Defined Types
General Type
| Type | Type(Hex) | Description |
|---|---|---|
| Binary data | 0x0001 | Reserved. Not in use. |
Custom Type
| Type | Type(Hex) | Description |
|---|---|---|
| Vite Grin wallet index | 0x8001 | Data of Grin transaction index |
| ViteX gateway data | 0x0bc3 | Data of cross-chain transaction of ViteX gateway |