LastAdjustmentBlock

Storage Map v101 → current

Block of last difficulty /burn adjustment per subnet .

Queried by: minersdevelopersanalytics

The Big Picture

Registration difficulty and burn costs adjust periodically. This tracks when the last adjustment occurred. Combined with AdjustmentInterval, you can predict next changes.

Use Cases

Calculate time until next adjustment
Monitor adjustment frequency
Plan registration timing

Purpose & Usage

Purpose

Track when registration costs were last adjusted.

Common Query Patterns

Query by netuid

Query Keys

#	Name	Type	Description
1	key1	u16	key1 (u16)

Stored Value

u64

Value in RAO (÷10⁹ for TAO)

RAO -> TAO (/ 10^9)

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 LastAdjustmentBlock storage
const key1 = 0;

const result = await api.query
  [stringCamelCase("SubtensorModule")]
  [stringCamelCase("LastAdjustmentBlock")](
  key1
);

console.log("LastAdjustmentBlock:", result.toHuman());

Runtime Info

View Source

Pallet: SubtensorModule
Storage Kind: Map
First Version: v101
Current Version: v393

Back to SubtensorModule Storage