SubnetMovingAlpha

Storage Plain v233 → v411

Moving alpha smoothing factor for all subnets.

Queried by: developersanalytics

The Big Picture

Global parameter affecting how alpha values smooth over time across all subnets. Higher = more smoothing, lower = more responsive.

Use Cases

Understand alpha dynamics
Research subnet economics

From Chain Metadata

ITEM ( moving_alpha ) -- subnet moving alpha.

Purpose & Usage

Purpose

Control global alpha smoothing in economics.

Common Query Patterns

Single value query

Stored Value

FixedI128

moving_alpha (FixedI128)

Decoding the value

FixedI128 (Q64.64 signed fixed-point)

Signed Q64.64. Same divisor as FixedU128 but bits can be negative.

const fraction = Number(value as bigint) / 2 ** 64; // signed bigint

Code Examples

import { createClient, Binary } from "polkadot-api";
import { getWsProvider } from "polkadot-api/ws";
import { sub } from "@polkadot-api/descriptors"; // generated by: npx papi add sub -w wss://entrypoint-finney.opentensor.ai:443

const client = createClient(getWsProvider("wss://entrypoint-finney.opentensor.ai:443"));
const api = client.getTypedApi(sub);

// Query SubnetMovingAlpha storage (no keys - plain value)
const result = await api.query.SubtensorModule.SubnetMovingAlpha.getValue();
console.log("SubnetMovingAlpha:", result);

Version History

Version:

v233 block 4,920,350 Added

v235–v237 · runtime versions skipped on chain (never deployed)

v238 block 4,936,550 Internal re-bind

v266–v272 · runtime versions skipped on chain (never deployed)

v273 block 5,659,032 Internal re-bind

v278–v289 · runtime versions skipped on chain (never deployed)

v290 block 5,947,548 Internal re-bind

v307–v314 · runtime versions skipped on chain (never deployed)

v315 block 6,414,634 Internal re-bind

v316–v319 · runtime versions skipped on chain (never deployed)

v320 block 6,523,566 Internal re-bind

v327–v333 · runtime versions skipped on chain (never deployed)

v334 block 6,811,690 Internal re-bind

v353–v360 · runtime versions skipped on chain (never deployed)

v361 block 7,063,679 Internal re-bind

v386–v390 · runtime versions skipped on chain (never deployed)

v391 block 7,782,857 Internal re-bind

v394–v400 · runtime versions skipped on chain (never deployed)

v401 block 8,036,576 Internal re-bind Current

Runtime Info

View Source

Pallet: SubtensorModule
Storage Kind: Plain
First Version: v233
Current Version: v411

Back to SubtensorModule Storage