This storage item was removed in v306
This storage item is no longer available in the current runtime. Existed from v133 to v306. Shown here for historical reference.
NetworkLastRegistered
Storage Removed Plain v133 → v306 (removed)Queried by: subnet ownersdevelopersanalytics
The Big Picture
Combined with NetworkRateLimit, this tells you when the next subnet can be created. If (current_block - NetworkLastRegistered) >= NetworkRateLimit, creation is allowed.
Why This Matters
Can I create a subnet now? Check (current_block - NetworkLastRegistered). If >= NetworkRateLimit, creation is open. Otherwise, wait for the countdown.
Example Scenario
Query NetworkLastRegistered() returns 7000000. Current block is 7005000. Rate limit is 7200. 7005000 - 7000000 = 5000 < 7200. Wait 2200 more blocks (~1.2 hours).
Common Questions
- What updates this?
- Every successful subnet creation updates this to the current block.
- Can I see creation history?
- This only tracks the most recent. For history, you'd need an indexer or track NetworkRegisteredAt for each netuid.
Use Cases
- Check when next subnet creation is allowed
- Plan subnet launch timing
- Track network growth rate
- Build subnet creation countdown tools
- Research network expansion patterns
Purpose & Usage
Purpose
Track for rate limiting - when was the most recent subnet created.
Common Query Patterns
- Single value query
- Calculate when next creation is allowed
- Monitor network growth pace
Stored Value
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 NetworkLastRegistered storage (no keys - plain value)
const result = await api.query
[stringCamelCase("SubtensorModule")]
[stringCamelCase("NetworkLastRegistered")]();
console.log("NetworkLastRegistered:", result.toHuman());Runtime Info
View Source- Pallet
- SubtensorModule
- Storage Kind
- Plain
- First Version
- v133
- Removed In
- v306