This tutorial shows how to use the bittensor btcli
to create a subnetwork and connect your incentive mechanism to it.
IMPORTANT: Before attempting to register on mainnet, we strongly recommend that you:
- First run Running Subnet Locally, and
- Then run Running on the Testnet.
Your incentive mechanisms running on the mainnet are open to anyone. They emit real TAO. Creating these mechanisms incur a lock_cost
in TAO.
DANGER
- Do not expose your private keys.
- Only use your testnet wallet.
- Do not reuse the password of your mainnet wallet.
- Make sure your incentive mechanism is resistant to abuse.
Before proceeding further, make sure that you have installed Bittensor. See the below instructions:
After installing bittensor
, proceed as below:
NOTE: Skip this step if you already did this during local testing and development.
In your project directory:
git clone https://github.com/opentensor/bittensor-subnet-template.git
Next, cd
into bittensor-subnet-template
repo directory:
cd bittensor-subnet-template
Install the Bittensor subnet template package:
python -m pip install -e . # Install your subnet template package
Create wallets for subnet owner, subnet validator and for subnet miner.
This step creates local coldkey and hotkey pairs for your three identities: subnet owner, subnet validator and subnet miner.
The owner will create and control the subnet. The owner must have at least 100 TAO before the owner can run next steps.
The validator and miner will be registered to the subnet created by the owner. This ensures that the validator and miner can run the respective validator and miner scripts.
NOTE: You can also use existing wallets to register. Creating new keys is shown here for reference.
Create a coldkey for the owner wallet:
btcli wallet new_coldkey --wallet.name owner
Create a coldkey and hotkey for the subnet miner wallet:
btcli wallet new_coldkey --wallet.name miner
and
btcli wallet new_hotkey --wallet.name miner --wallet.hotkey default
Create a coldkey and hotkey for the subnet validator wallet:
btcli wallet new_coldkey --wallet.name validator
and
btcli wallet new_hotkey --wallet.name validator --wallet.hotkey default
Creating subnets on mainnet is competitive. The cost is determined by the rate at which new subnets are being registered onto the Bittensor blockchain.
By default you must have at least 100 TAO on your owner wallet to create a subnet. However, the exact amount will fluctuate based on demand. The below code shows how to get the current price of creating a subnet.
btcli subnet lock_cost
The above command will show:
>> Subnet lock cost: τ100.000000000
Using your TAO balance, you can register your subnet to the mainchain. This will create a new subnet on the mainchain and give you the owner permissions to it. The below command shows how to purchase a slot.
NOTE: Slots cost TAO to lock. You will get this TAO back when the subnet is deregistered.
btcli subnet create
Enter the owner wallet name. This gives permissions to the coldkey.
>> Enter wallet name (default): owner # Enter your owner wallet name
>> Enter password to unlock key: # Enter your wallet password.
>> Register subnet? [y/n]: <y/n> # Select yes (y)
>> ⠇ 📡 Registering subnet...
✅ Registered subnetwork with netuid: 1 # Your subnet netuid will show here, save this for later.
NOTE: While this is not enforced, we recommend subnet owners to run a subnet validator and a subnet miner on the subnet to demonstrate proper use to the community.
This step registers your subnet validator and subnet miner keys to the subnet giving them the first two slots on the subnet.
Register your miner key to the subnet:
btcli subnet recycle_register --netuid 1 --subtensor.network finney --wallet.name miner --wallet.hotkey default
Follow the below prompts:
>> Enter netuid [1] (1): # Enter netuid 1 to specify the subnet you just created.
>> Continue Registration?
hotkey: ...
coldkey: ...
network: finney [y/n]: # Select yes (y)
>> ✅ Registered
Next, register your validator key to the subnet:
btcli subnet recycle_register --netuid 1 --subtensor.network finney --wallet.name validator --wallet.hotkey default
Follow the below prompts:
>> Enter netuid [1] (1): # Enter netuid 1 to specify the subnet you just created.
>> Continue Registration?
hotkey: ...
coldkey: ...
network: finney [y/n]: # Select yes (y)
>> ✅ Registered
Check that your subnet validator key has been registered:
btcli wallet overview --wallet.name validator
The output will be similar to the below:
Subnet: 1
COLDKEY HOTKEY UID ACTIVE STAKE(τ) RANK TRUST CONSENSUS INCENTIVE DIVIDENDS EMISSION(ρ) VTRUST VPERMIT UPDATED AXON HOTKEY_SS58
miner default 0 True 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0 0.00000 14 none 5GTFrsEQfvTsh3WjiEVFeKzFTc2xcf…
1 1 2 τ0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 ρ0 0.00000
Wallet balance: τ0.0
Check that your subnet miner has been registered:
btcli wallet overview --wallet.name miner
The output will be similar to the below:
Subnet: 1
COLDKEY HOTKEY UID ACTIVE STAKE(τ) RANK TRUST CONSENSUS INCENTIVE DIVIDENDS EMISSION(ρ) VTRUST VPERMIT UPDATED AXON HOTKEY_SS58
miner default 1 True 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0 0.00000 14 none 5GTFrsEQfvTsh3WjiEVFeKzFTc2xcf…
1 1 2 τ0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 ρ0 0.00000
Wallet balance: τ0.0
Run the subnet miner:
python neurons/miner.py --netuid 1 --wallet.name miner --wallet.hotkey default --logging.debug
You will see the below terminal output:
>> 2023-08-08 16:58:11.223 | INFO | Running miner for subnet: 1 on network: wss://entrypoint-finney.opentensor.ai:443 with config: ...
Run the subnet validator:
python neurons/validator.py --netuid 1 --wallet.name validator --wallet.hotkey default --logging.debug
You will see the below terminal output:
>> 2023-08-08 16:58:11.223 | INFO | Running validator for subnet: 1 on network: wss://entrypoint-finney.opentensor.ai:443 with config: ...
Register to the root subnet using the btcli
:
btcli root register
Then set your weights for the subnet:
btcli root weights
To stop your nodes, press CTRL + C in the terminal where the nodes are running.