Queried by: minersvalidatorsdevelopersanalyticswallets
The Big Picture
Even during low demand, burn cost won't go below MinBurn. This prevents trivially cheap registration that could enable spam or slot squatting. Ensures minimum commitment.
Why This Matters
What's the cheapest possible registration? MinBurn. Even if demand is zero, you'll pay at least this much to register via burn.
Example Scenario
Query MinBurn(netuid=1) returns 1000000000 (1 TAO). Even during quiet periods, burn registration costs at least 1 TAO.
Common Questions
- Why have a minimum?
- Prevents spam. Without a floor, attackers could cheaply register many slots during low-demand periods and squat on them.
- How low does burn actually go?
- After sustained low demand, burn approaches MinBurn. Check current Burn vs MinBurn to see how much room for decrease remains.
Use Cases
- Check best-case registration cost
- Build registration cost displays with bounds
- Plan registration during low-demand periods
- Research registration economics
- Design subnet cost parameters
Purpose & Usage
Purpose
Floor on registration burn cost - prevents trivially cheap registration.
Common Query Patterns
- Query by netuid
- Check minimum registration cost
- Plan registration budget
Query Keys
| # | Name | Type | Description |
|---|---|---|---|
| 1 | key1 | u16 | key1 (u16) |
Stored Value
Relationships
Modified By
Related Events
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 MinBurn storage
const key1 = 0;
const result = await api.query
[stringCamelCase("SubtensorModule")]
[stringCamelCase("MinBurn")](
key1
);
console.log("MinBurn:", result.toHuman());Runtime Info
View Source- Pallet
- SubtensorModule
- Storage Kind
- Map
- First Version
- v101
- Current Version
- v393