Transactions

burned-register

Burns the subnet's current registration cost from the signing coldkey and assigns the hotkey a UID on that subnet. The burned TAO is recycled, not staked — it cannot be recovered by deregistering. The cost floats with registration demand and is only known at execution time, so a configured spend cap blocks this call until raised. Fails with SubNetRegistrationDisabled while the subnet's registration_allowed toggle is off. On a full subnet, registering evicts the non-immune neuron with the lowest emission (ties broken by older registration block, then lower UID), and the new UID can itself be evicted once its immunity period ends. Use root_register instead for the root network (netuid 0).

Signer	Pallet	Wraps
`coldkey`	SubtensorModule	`SubtensorModule.burned_register`

Parameters

Parameter	Type	Required	Description
`netuid`	integer	yes	Subnet to register on.
`hotkey_ss58`	string	no	Hotkey that receives the UID; defaults to the wallet's hotkey.

Address parameters (--hotkey, --coldkey, --dest, ...) accept a raw ss58 address, an address-book or proxy-book name, or a local wallet/hotkey name.

CLI

Preview with --dry-run (shows fee, effects, and policy result without submitting), then submit:

btcli tx burned-register \
  --netuid <int> --dry-run
btcli tx burned-register \
  --netuid <int> -w my_coldkey

Python

import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.BurnedRegister(netuid=1)

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)

Or build it by op name, as an agent would:

await client.execute_tool("burned_register", {...}, wallet)