register-leased-network

Creates a subnet paid for by a crowdloan rather than a single coldkey: the crowdloan's funds cover the network registration cost (leftover cap is refunded to contributors pro-rata, with any rounding remainder going to the beneficiary), contributors earn emissions_share percent of the subnet owner's emission cut (not of total subnet emissions) as dividends, and the beneficiary operates the subnet through a scoped proxy. Must be dispatched in a crowdloan context — it fails as a standalone call. The cost is not cheaply boundable up front, so a configured spend cap blocks this until raised. With an end_block the beneficiary can later take full ownership via terminate_lease; without one the lease is perpetual and ownership never transfers.

Parameters

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 register-leased-network \
  --emissions-share <int> --dry-run
btcli tx register-leased-network \
  --emissions-share <int> -w my_coldkey

Python

import bittensor as bt
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = bt.RegisterLeasedNetwork(emissions_share=0)

sub = bt.Subtensor()
plan = sub.plan(intent, wallet)   # fee, effects, policy — no submission
result = sub.execute(intent, wallet)
if not result.success:
    print(result.error.code, result.error.remediation)

(bt.Subtensor is also the async client — async with bt.Subtensor() as client: — see The client.) Or build the intent by op name, as an agent would:

result = sub.execute_tool("register_leased_network", {...}, wallet)

On-chain implementation

SubtensorModule.register_leased_network — pallets/subtensor/src/macros/dispatches.rs#L1673:

#[pallet::call_index(110)]
#[pallet::weight(<T as crate::pallet::Config>::WeightInfo::register_leased_network(T::MaxContributors::get()))]
pub fn register_leased_network(
    origin: OriginFor<T>,
    emissions_share: Percent,
    end_block: Option<BlockNumberFor<T>>,
) -> DispatchResultWithPostInfo {
    Self::do_register_leased_network(origin, emissions_share, end_block)
}

Delegates to do_register_leased_network.

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