This constant was removed in v161
This constant is no longer available in the current runtime. Existed from v156 to v161. Shown here for historical reference.
Current Value
1.00 TAO (1000000000 raw)
Conversion: ÷ 10^9 (RAO → TAO)
From Chain Metadata
Cost of swapping a hotkey.
Use Cases
- Runtime configuration
Value History
| Version | Block | Change | Value |
|---|---|---|---|
| v156 | #3,321,841 | Added | 1.00 TAO |
| v162 | #3,372,565 | Removed | 1.00 TAO |
Code Examples
import { ApiPromise, WsProvider } from "@polkadot/api";
import { stringCamelCase } from "@polkadot/util";
const provider = new WsProvider("wss://entrypoint-finney.opentensor.ai:443");
const api = await ApiPromise.create({ provider });
// Query HotkeySwapCost constant
const value = api.consts[stringCamelCase("SubtensorModule")][stringCamelCase("HotkeySwapCost")];
console.log("HotkeySwapCost:", value.toHuman());
// Convert RAO to TAO if this is a balance value
const taoValue = value.toBigInt() / BigInt(1e9);
console.log("TAO:", taoValue.toString());Type Information
- Type
- u64
- Byte Size
- 8 bytes
- Encoding
- fixed
- Raw Hex
- 0x00ca9a3b00000000
Runtime Info
- Pallet
- SubtensorModule
- First Version
- v156
- Latest Version
- v161
- Removed In
- v161