EMAPriceHalvingBlocks

Storage Map v252 → v411

Blocks for EMA price to halve per subnet .

Queried by: developersanalytics

The Big Picture

EMA (Exponential Moving Average) is used for price smoothing. This parameter controls the half-life - how many blocks for the EMA influence to halve. Longer = smoother, shorter = more responsive.

Use Cases

Understand price smoothing dynamics
Build price prediction models
Research subnet economics

From Chain Metadata

MAP ( netuid ) --> Halving time of average moving price.

Purpose & Usage

Purpose

Control how quickly exponential moving average price decays.

Common Query Patterns

Query by netuid

Query Keys

#	Name	Type	Description
1	netuid	u16	netuid (u16, hashed key component)

Stored Value

u64

Halving (u64)

RAO -> TAO (/ 10^9)

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 EMAPriceHalvingBlocks storage
const netuid = 1;

const result = await api.query.SubtensorModule.EMAPriceHalvingBlocks.getValue(netuid);
console.log("EMAPriceHalvingBlocks:", result);

Version History

Version:

v252 block 5,163,656 Added

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

v290 block 5,947,548 Internal re-bind Current

Runtime Info

View Source

Pallet: SubtensorModule
Storage Kind: Map
First Version: v252
Current Version: v411

Back to SubtensorModule Storage