BondsPenaltySet

Event Re-added v233 → v265, v273 → v277, v290 → current #25

Emitted when bonds penalty parameter is changed.

Useful for: validatorsminerssubnet ownersanalyticsdevelopers

The Big Picture

Bonds represent validator-miner relationships built over time through consistent weighting. The penalty parameter affects how bonds are penalized under certain conditions (like disagreeing with consensus). Higher penalties mean faster bond erosion when things go wrong; lower penalties are more forgiving. This shapes the long-term relationship dynamics on the subnet.

Why This Matters

Bond penalties affect how quickly your validator-miner relationships degrade under adverse conditions. High penalties mean mistakes are costly to your bonds. Low penalties mean relationships are more resilient. Understanding this helps you evaluate the risk/reward of your strategy.

Example Scenario

Subnet 6 had mild bond penalties, letting poor validators coast on historical bonds. They increase the penalty to enforce better behavior. BondsPenaltySet fires. Validators who start setting bad weights will see their bonds erode faster - no more coasting on reputation.

Common Questions

What triggers bond penalties?: Typically disagreement with consensus, setting outlier weights, or other misbehavior. The specific triggers depend on the subnet's consensus rules.
Can I recover from bond penalties?: Yes, by consistently setting weights that align with consensus. Bonds can rebuild over time. Penalties erode bonds; good behavior rebuilds them.
How do bond penalties affect my rewards?: Lower bonds mean less dividends from the miners you've bonded with. Penalties indirectly hurt your earnings by degrading your relationships.

Use Cases

Track bond penalty policies on subnets
Understand validator-miner relationship dynamics
Monitor consensus mechanism tuning
Build bond analysis tools

How to Use This Event

→ Monitor bond penalty changes affecting your position
→ Track consensus mechanism tuning across subnets
→ Build bond risk analysis tools

From Chain Metadata

bonds penalty is set for a subnet.

Triggers

Preconditions

Caller has admin/sudo privileges

Effects

Postconditions

BondsPenalty updated

Side Effects

Affects penalties in bond calculations

Event Data

#	Name	Type	Description
0	arg0	u16	Event field #0 (u16)
1	arg1	u16	Event field #1 (u16)

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 });

// Subscribe to BondsPenaltySet events
api.query.system.events((events) => {
  events
    .filter(({ event }) =>
      event.section === stringCamelCase("SubtensorModule") &&
      event.method === "BondsPenaltySet"
    )
    .forEach(({ event }) => {
      console.log("BondsPenaltySet:", event.data.toHuman());
    });
});

Version History

Version:

v233 block 4,920,350 2 args

v273 block 5,659,032 2 args

v290 block 5,947,548 2 args Current

Runtime Info

View Source

Pallet Index: 7
Event Index: 25
First Version: v233
Current Version: v393

Back to SubtensorModule Events