Queried by: minersvalidatorsdevelopersanalytics
The Big Picture
Difficulty and burn costs adjust periodically based on registration demand. AdjustmentInterval controls how often - every N blocks, the system compares actual vs target registrations and adjusts costs accordingly. Frequent adjustments = more responsive pricing.
Why This Matters
When will costs change? Every AdjustmentInterval blocks. If you're planning to register, check where you are in the cycle - costs might go up or down at the next adjustment.
Example Scenario
Query AdjustmentInterval(netuid=1) returns 100 blocks. Every 100 blocks, registration costs (difficulty and burn) adjust based on recent demand.
Common Questions
- How much do costs change?
- Depends on actual vs target registrations. Many more registrations than target = costs increase. Fewer = costs decrease.
- Can I predict the adjustment?
- Roughly. Check RegistrationsThisInterval vs TargetRegistrationsPerInterval. If significantly above target, expect costs to rise.
Use Cases
- Predict when difficulty/burn will next adjust
- Plan registration timing around adjustments
- Build cost prediction models
- Research registration economics
- Monitor adjustment cycles
From Chain Metadata
MAP ( netuid ) --> adjustment_interval
Purpose & Usage
Purpose
Control difficulty adjustment frequency - how often registration costs adapt to demand.
Common Query Patterns
- Query by netuid
- Plan registration timing
- Predict cost changes
Query Keys
| # | Name | Type | Description |
|---|---|---|---|
| 1 | netuid | u16 | netuid (u16, hashed key component) |
Stored Value
adjustment_interval (u16)
Relationships
Modified By
Related Events
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 AdjustmentInterval storage
const netuid = 1;
const result = await api.query.SubtensorModule.AdjustmentInterval.getValue(netuid);
console.log("AdjustmentInterval:", result);Version History
v101 block 1 Added
v123 block 720,235 Internal re-bind
v149 block 3,014,339 Internal re-bind
v166–v194 · runtime versions skipped on chain (never deployed)
v195 block 3,791,350 Internal re-bind
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
- v101
- Current Version
- v411