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---

A) Global Hyperparameters

Parameter	Current value
TxRateLimit	1 block
TxDelegateTakeRateLimit	216,000 blocks
TxChildkeyTakeRateLimit	216,000 blocks
NetworkRateLimit	28,800 blocks

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Subtensor Storage Query Examples

1. ActivityCutoff

• Description: Activity cutoff for networks.
• Query Type: u16 -> u16
• Parameters:
  • netuid: u16
• Default Value: 5000
• Python Example:

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Custom Error Variants in Subtensor Signed Extension

This document describes the custom error variants used in the subtensor signed extension. The errors are presented to the user in the following format:

{'code': 1010, 'message': 'Invalid Transaction', 'data': 'Custom error: [Error Code]'}.

Custom error: 1

Description: The account (who) attempting the commit_weights call does not meet the minimum stake requirement for weights.

• Error from Subtensor: {'code': 1010, 'message': 'Invalid Transaction', 'data': 'Custom error: 1'}

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Child Keys

Motivation

The child-key feature in Subtensor is being introduced with several key objectives:

1. Decentralization of Stake Weight: Validators are able to allocate state weights to several other validators (child keys) within a subnet
2. Enabling STAO / DTAO: As we scale the number of subnets in STAO / DTAO, it becomes infeasible for any validator to validate all the subnets . Allocating stake proportions to childkeys helps solve this.
3. Enhanced Security: In case 1 childkey is compromised , it only affects the stakeweight associated with that subnet, and is easily revoked.

JohnReedV

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

/**
 * @title Storage
 * @dev Store & retrieve value in a variable
 */
contract Storage {