UsedSpaceOf

Storage Map v257 → v411 Changed in v411

Tracks commitment space usage for rate limiting.

Explore chain

Queried by: validatorsminersdevelopers

The Big Picture

To prevent commitment spam, each account has a space limit per interval tracked here.

Use Cases

Check available commitment space before submission
Debug space limit errors

From Chain Metadata

Maps (netuid, who) -> usage (how many “bytes” they've committed) in the RateLimit window

Purpose & Usage

Purpose

Prevent spam by limiting how much commitment data each account can store per interval.

Common Query Patterns

Query to check remaining space before submitting

Part of: On-Chain Commitments

Query Keys

#	Name	Type	Description
1	netuid netuid raw: key1	u16	key1 (u16)
2	accountId account raw: key2	AccountId	key2 (AccountId) (hex -> SS58)

Stored Value

UsageTracker

value (UsageTracker)

Relationships

Modified By

set_commitment

Related Events

Commitment TimelockCommitment

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 UsedSpaceOf storage
const key1 = 0;
const key2 = "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY";

const result = await api.query.Commitments.UsedSpaceOf.getValue(key1, key2);
console.log("UsedSpaceOf:", result);

Version History

Version:

v257 block 5,228,683 Added

v259–v260 · runtime versions skipped on chain (never deployed)

v261 block 5,328,895 Internal re-bind

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

v273 block 5,659,032 Internal re-bind

v275–v275 · runtime versions skipped on chain (never deployed)

v276 block 5,781,672 Internal re-bind

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

v290 block 5,947,548 Internal re-bind

v293–v296 · runtime versions skipped on chain (never deployed)

v297 block 6,067,943 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

v324–v325 · runtime versions skipped on chain (never deployed)

v326 block 6,608,228 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

v363–v364 · runtime versions skipped on chain (never deployed)

v365 block 7,135,419 Internal re-bind

v378–v384 · runtime versions skipped on chain (never deployed)

v385 block 7,782,670 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

v403–v410 · runtime versions skipped on chain (never deployed)

v411 block 8,283,784 Internal re-bind Current

Runtime Info

View Source

Pallet: Commitments
Storage Kind: Map
First Version: v257
Current Version: v411

Back to Commitments Storage