ActivityCutoffFactorMilli

Storage Map v423 → v472 · 1 shape change

MAP ( netuid ) --> activity-cutoff factor in per-mille epochs (1/1000 granularity).

From Chain Metadata

MAP ( netuid ) --> activity-cutoff factor in per-mille epochs (1/1000 granularity). Effective cutoff in blocks = `(factor × tempo) / 1000`, clamped to ≥ 1.

Purpose & Usage

Purpose

Effective cutoff in blocks = `(factor × tempo) / 1000`, clamped to ≥ 1.

Common Query Patterns

Query by key
Iterate all entries

Migration Notes

v424 v432 Breaking

key type changed from u16 to NetUid

Update decoders: SCALE encoding is positional, so any signature change (added, removed, or type-changed fields, or storage shape changes) shifts byte offsets and existing decoders will misparse this item. Re-derive types from the new metadata.

Query Keys

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

Stored Value

u32

activity-cutoff (u32)

Default Value

13889 0x41360000

Absent keys read as this value — querying a key that has never been written returns this default, not an error or empty result.

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 ActivityCutoffFactorMilli storage
const netuid = 1;

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

Version History

Version:

v423 block 8,486,593 Added

v425–v431 · runtime versions skipped on chain (never deployed)

v432 block 8,636,190 Shape changed Current

key : u16 → NetUid

Runtime Info

View Source

Pallet: SubtensorModule
Storage Kind: Map
First Version: v423
Current Version: v472

Back to SubtensorModule Storage