Subnet Identities

pallets/admin-utils/tests/tests.rs

@@ -1243,7 +1243,7 @@ fn test_sudo_get_set_alpha() {
             DispatchError::BadOrigin
         );
 
-        assert_ok!(SubtensorModule::register_network(signer.clone()));
+        assert_ok!(SubtensorModule::register_network(signer.clone(), None));
 
         assert_ok!(AdminUtils::sudo_set_alpha_values(
             signer.clone(),

pallets/subtensor/src/benchmarks.rs

@@ -299,7 +299,7 @@ benchmarks! {
     let amount: u64 = 1;
     let amount_to_be_staked = 100_000_000_000_000u64;
     Subtensor::<T>::add_balance_to_coldkey_account(&coldkey.clone(), amount_to_be_staked);
-  }: register_network(RawOrigin::Signed(coldkey))
+  }: register_network(RawOrigin::Signed(coldkey), None)
 
   benchmark_dissolve_network {
     let seed : u32 = 1;
@@ -311,7 +311,7 @@ benchmarks! {
     let amount: u64 = 1;
     let amount_to_be_staked = 100_000_000_000_000u64;
     Subtensor::<T>::add_balance_to_coldkey_account(&coldkey.clone(), amount_to_be_staked);
-    assert_ok!(Subtensor::<T>::register_network(RawOrigin::Signed(coldkey.clone()).into()));
+    assert_ok!(Subtensor::<T>::register_network(RawOrigin::Signed(coldkey.clone()).into(), None));
   }: dissolve_network(RawOrigin::Signed(coldkey), 1)
 
   // swap_hotkey {

pallets/subtensor/src/coinbase/root.rs

@@ -894,17 +894,24 @@ impl<T: Config> Pallet<T> {
     /// Facilitates user registration of a new subnetwork.
     ///
     /// # Args:
-    /// * 'origin': ('T::RuntimeOrigin'): The calling origin. Must be signed.
+    /// * `origin` (`T::RuntimeOrigin`): The calling origin. Must be signed.
+    /// * `identity` (`Option<SubnetIdentityOf>`): Optional identity to be associated with the new subnetwork.
     ///
-    /// # Event:
-    /// * 'NetworkAdded': Emitted when a new network is successfully added.
+    /// # Events:
+    /// * `NetworkAdded(netuid, modality)`: Emitted when a new network is successfully added.
+    /// * `SubnetIdentitySet(netuid)`: Emitted when a custom identity is set for a new subnetwork.
+    /// * `NetworkRemoved(netuid)`: Emitted when an existing network is removed to make room for the new one.
+    /// * `SubnetIdentityRemoved(netuid)`: Emitted when the identity of a removed network is also deleted.
     ///
     /// # Raises:
     /// * 'TxRateLimitExceeded': If the rate limit for network registration is exceeded.
     /// * 'NotEnoughBalanceToStake': If there isn't enough balance to stake for network registration.
     /// * 'BalanceWithdrawalError': If an error occurs during balance withdrawal for network registration.
     ///
-    pub fn user_add_network(origin: T::RuntimeOrigin) -> dispatch::DispatchResult {
+    pub fn user_add_network(
+        origin: T::RuntimeOrigin,
+        identity: Option<SubnetIdentityOf>,
+    ) -> dispatch::DispatchResult {
         // --- 0. Ensure the caller is a signed user.
         let coldkey = ensure_signed(origin)?;
 
@@ -948,6 +955,11 @@ impl<T: Config> Pallet<T> {
                 Self::remove_network(netuid_to_prune);
                 log::debug!("remove_network: {:?}", netuid_to_prune,);
                 Self::deposit_event(Event::NetworkRemoved(netuid_to_prune));
+
+                if SubnetIdentities::<T>::take(netuid_to_prune).is_some() {
+                    Self::deposit_event(Event::SubnetIdentityRemoved(netuid_to_prune));
+                }
+
                 netuid_to_prune
             }
         };
@@ -961,21 +973,32 @@ impl<T: Config> Pallet<T> {
         Self::init_new_network(netuid_to_register, 360);
         log::debug!("init_new_network: {:?}", netuid_to_register,);
 
-        // --- 7. Set netuid storage.
+        // --- 7. Remove the identity if it exists
+        if let Some(identity_value) = identity {
+            ensure!(
+                Self::is_valid_subnet_identity(&identity_value),
+                Error::<T>::InvalidIdentity
+            );
+
+            SubnetIdentities::<T>::insert(netuid_to_register, identity_value);
+            Self::deposit_event(Event::SubnetIdentitySet(netuid_to_register));
+        }
+
+        // --- 8. Set netuid storage.
         let current_block_number: u64 = Self::get_current_block_as_u64();
         NetworkLastRegistered::<T>::set(current_block_number);
         NetworkRegisteredAt::<T>::insert(netuid_to_register, current_block_number);
         SubnetOwner::<T>::insert(netuid_to_register, coldkey);
 
-        // --- 8. Emit the NetworkAdded event.
+        // --- 9. Emit the NetworkAdded event.
         log::info!(
             "NetworkAdded( netuid:{:?}, modality:{:?} )",
             netuid_to_register,
             0
         );
         Self::deposit_event(Event::NetworkAdded(netuid_to_register, 0));
 
-        // --- 9. Return success.
+        // --- 10. Return success.
         Ok(())
     }
 
@@ -1008,14 +1031,19 @@ impl<T: Config> Pallet<T> {
             Error::<T>::NotSubnetOwner
         );
 
-        // --- 4. Explicitly erase the network and all its parameters.
+        // --- 4. Remove the subnet identity if it exists.
+        if SubnetIdentities::<T>::take(netuid).is_some() {
+            Self::deposit_event(Event::SubnetIdentityRemoved(netuid));
+        }
+
+        // --- 5. Explicitly erase the network and all its parameters.
         Self::remove_network(netuid);
 
-        // --- 5. Emit the NetworkRemoved event.
+        // --- 6. Emit the NetworkRemoved event.
         log::info!("NetworkRemoved( netuid:{:?} )", netuid);
         Self::deposit_event(Event::NetworkRemoved(netuid));
 
-        // --- 6. Return success.
+        // --- 7. Return success.
         Ok(())
     }
 

pallets/subtensor/src/lib.rs

@@ -60,7 +60,7 @@ extern crate alloc;
 #[frame_support::pallet]
 pub mod pallet {
 
-    use crate::migrations;
+    use crate::{freeze_struct, migrations};
     use frame_support::{
         dispatch::GetDispatchInfo,
         pallet_prelude::{DispatchResult, StorageMap, ValueQuery, *},
@@ -133,9 +133,9 @@ pub mod pallet {
         pub ip_type: u8,
     }
 
-    ///  Struct for Prometheus.
+    ///  Struct for ChainIdentities.
     pub type ChainIdentityOf = ChainIdentity;
-    /// Data structure for Prometheus information.
+    /// Data structure for Chain Identities.
     #[derive(Encode, Decode, Default, TypeInfo, Clone, PartialEq, Eq, Debug)]
     pub struct ChainIdentity {
         /// The name of the chain identity
@@ -152,6 +152,19 @@ pub mod pallet {
         pub additional: Vec<u8>,
     }
 
+    ///  Struct for SubnetIdentities.
+    pub type SubnetIdentityOf = SubnetIdentity;
+    /// Data structure for Subnet Identities
+    #[freeze_struct("f448dc3dad763108")]
+    #[derive(Encode, Decode, Default, TypeInfo, Clone, PartialEq, Eq, Debug)]
+    pub struct SubnetIdentity {
+        /// The name of the subnet
+        pub subnet_name: Vec<u8>,
+        /// The github repository associated with the chain identity
+        pub github_repo: Vec<u8>,
+        /// The subnet's contact
+        pub subnet_contact: Vec<u8>,
+    }
     /// ============================
     /// ==== Staking + Accounts ====
     /// ============================
@@ -1080,6 +1093,10 @@ pub mod pallet {
     pub type Identities<T: Config> =
         StorageMap<_, Blake2_128Concat, T::AccountId, ChainIdentityOf, OptionQuery>;
 
+    #[pallet::storage] // --- MAP ( netuid ) --> identity
+    pub type SubnetIdentities<T: Config> =
+        StorageMap<_, Blake2_128Concat, u16, SubnetIdentityOf, OptionQuery>;
+
     /// =================================
     /// ==== Axon / Promo Endpoints =====
     /// =================================

pallets/subtensor/src/macros/dispatches.rs

@@ -798,8 +798,11 @@ mod dispatches {
         #[pallet::weight((Weight::from_parts(157_000_000, 0)
 		.saturating_add(T::DbWeight::get().reads(16))
 		.saturating_add(T::DbWeight::get().writes(30)), DispatchClass::Operational, Pays::No))]
-        pub fn register_network(origin: OriginFor<T>) -> DispatchResult {
-            Self::user_add_network(origin)
+        pub fn register_network(
+            origin: OriginFor<T>,
+            identity: Option<SubnetIdentityOf>,
+        ) -> DispatchResult {
+            Self::user_add_network(origin, identity)
         }
 
         /// Facility extrinsic for user to get taken from faucet
@@ -937,5 +940,35 @@ mod dispatches {
         ) -> DispatchResult {
             Self::do_set_identity(origin, name, url, image, discord, description, additional)
         }
+
+        /// ---- Set the identity information for a subnet.
+        /// # Args:
+        /// * `origin` - (<T as frame_system::Config>::Origin):
+        ///     - The signature of the calling coldkey, which must be the owner of the subnet.
+        ///
+        /// * `netuid` (u16):
+        ///     - The unique network identifier of the subnet.
+        ///
+        /// * `subnet_name` (Vec<u8>):
+        ///     - The name of the subnet.
+        ///
+        /// * `github_repo` (Vec<u8>):
+        ///     - The GitHub repository associated with the subnet identity.
+        ///
+        /// * `subnet_contact` (Vec<u8>):
+        ///     - The contact information for the subnet.
+        #[pallet::call_index(69)]
+        #[pallet::weight((Weight::from_parts(45_000_000, 0)
+		.saturating_add(T::DbWeight::get().reads(4))
+		.saturating_add(T::DbWeight::get().writes(1)), DispatchClass::Normal, Pays::Yes))]
+        pub fn set_subnet_identity(
+            origin: OriginFor<T>,
+            netuid: u16,
+            subnet_name: Vec<u8>,
+            github_repo: Vec<u8>,
+            subnet_contact: Vec<u8>,
+        ) -> DispatchResult {
+            Self::do_set_subnet_identity(origin, netuid, subnet_name, github_repo, subnet_contact)
+        }
     }
 }

pallets/subtensor/src/macros/events.rs

@@ -179,5 +179,9 @@ mod events {
         NetworkMaxStakeSet(u16, u64),
         /// The identity of a coldkey has been set
         ChainIdentitySet(T::AccountId),
+        /// The identity of a subnet has been set
+        SubnetIdentitySet(u16),
+        /// The identity of a subnet has been removed
+        SubnetIdentityRemoved(u16),
     }
 }

pallets/subtensor/src/rpc_info/subnet_info.rs

@@ -4,7 +4,7 @@ use frame_support::storage::IterableStorageMap;
 extern crate alloc;
 use codec::Compact;
 
-#[freeze_struct("fe79d58173da662a")]
+#[freeze_struct("ccca539640c3f631")]
 #[derive(Decode, Encode, PartialEq, Eq, Clone, Debug)]
 pub struct SubnetInfo<T: Config> {
     netuid: Compact<u16>,
@@ -25,6 +25,7 @@ pub struct SubnetInfo<T: Config> {
     emission_values: Compact<u64>,
     burn: Compact<u64>,
     owner: T::AccountId,
+    identity: Option<SubnetIdentity>,
 }
 
 #[freeze_struct("55b472510f10e76a")]
@@ -80,6 +81,7 @@ impl<T: Config> Pallet<T> {
         let network_modality = <NetworkModality<T>>::get(netuid);
         let emission_values = Self::get_emission_value(netuid);
         let burn: Compact<u64> = Self::get_burn_as_u64(netuid).into();
+        let identity: Option<SubnetIdentity> = SubnetIdentities::<T>::get(netuid);
 
         // DEPRECATED
         let network_connect: Vec<[u16; 2]> = Vec::<[u16; 2]>::new();
@@ -106,6 +108,7 @@ impl<T: Config> Pallet<T> {
             emission_values: emission_values.into(),
             burn,
             owner: Self::get_subnet_owner(netuid),
+            identity,
         })
     }
 

pallets/subtensor/src/utils/identity.rs

@@ -75,6 +75,65 @@ impl<T: Config> Pallet<T> {
         Ok(())
     }
 
+    /// Sets the identity for a subnet.
+    ///
+    /// This function allows the owner of a subnet to set or update the identity information associated with the subnet.
+    /// It verifies that the caller is the owner of the specified subnet, validates the provided identity information,
+    /// and then stores it in the blockchain state.
+    ///
+    /// # Arguments
+    ///
+    /// * `origin` - The origin of the call, which should be a signed extrinsic.
+    /// * `netuid` - The unique identifier for the subnet.
+    /// * `subnet_name` - The name of the subnet to be associated with the identity.
+    /// * `github_repo` - The GitHub repository URL associated with the subnet identity.
+    /// * `subnet_contact` - Contact information for the subnet.
+    ///
+    /// # Returns
+    ///
+    /// Returns `Ok(())` if the subnet identity is successfully set, otherwise returns an error.
+    pub fn do_set_subnet_identity(
+        origin: T::RuntimeOrigin,
+        netuid: u16,
+        subnet_name: Vec<u8>,
+        github_repo: Vec<u8>,
+        subnet_contact: Vec<u8>,
+    ) -> dispatch::DispatchResult {
+        // Ensure the call is signed and get the signer's (coldkey) account
+        let coldkey = ensure_signed(origin)?;
+
+        // Ensure that the coldkey owns the subnet
+        ensure!(
+            Self::get_subnet_owner(netuid) == coldkey,
+            Error::<T>::NotSubnetOwner
+        );
+
+        // Create the identity struct with the provided information
+        let identity: SubnetIdentityOf = SubnetIdentityOf {
+            subnet_name,
+            github_repo,
+            subnet_contact,
+        };
+
+        // Validate the created identity
+        ensure!(
+            Self::is_valid_subnet_identity(&identity),
+            Error::<T>::InvalidIdentity
+        );
+
+        // Store the validated identity in the blockchain state
+        SubnetIdentities::<T>::insert(netuid, identity.clone());
+
+        // Log the identity set event
+        log::info!("SubnetIdentitySet( netuid:{:?} ) ", netuid);
+
+        // Emit an event to notify that an identity has been set
+        Self::deposit_event(Event::SubnetIdentitySet(netuid));
+
+        // Return Ok to indicate successful execution
+        Ok(())
+    }
+
     /// Validates the given ChainIdentityOf struct.
     ///
     /// This function checks if the total length of all fields in the ChainIdentityOf struct
@@ -106,4 +165,30 @@ impl<T: Config> Pallet<T> {
             && identity.description.len() <= 1024
             && identity.additional.len() <= 1024
     }
+
+    /// Validates the given SubnetIdentityOf struct.
+    ///
+    /// This function checks if the total length of all fields in the SubnetIdentityOf struct
+    /// is less than or equal to 2304 bytes, and if each individual field is also
+    /// within its respective maximum byte limit.
+    ///
+    /// # Arguments
+    ///
+    /// * `identity` - A reference to the SubnetIdentityOf struct to be validated.
+    ///
+    /// # Returns
+    ///
+    /// * `bool` - Returns true if the SubnetIdentity is valid, false otherwise.
+    pub fn is_valid_subnet_identity(identity: &SubnetIdentityOf) -> bool {
+        let total_length = identity
+            .subnet_name
+            .len()
+            .saturating_add(identity.github_repo.len())
+            .saturating_add(identity.subnet_contact.len());
+
+        total_length <= 256 + 1024 + 1024
+            && identity.subnet_name.len() <= 256
+            && identity.github_repo.len() <= 1024
+            && identity.subnet_contact.len() <= 1024
+    }
 }

pallets/subtensor/tests/epoch.rs

@@ -1501,7 +1501,7 @@ fn test_set_alpha_disabled() {
         assert_ok!(SubtensorModule::root_register(signer.clone(), hotkey,));
         assert_ok!(SubtensorModule::add_stake(signer.clone(), hotkey, 1000));
         // Only owner can set alpha values
-        assert_ok!(SubtensorModule::register_network(signer.clone()));
+        assert_ok!(SubtensorModule::register_network(signer.clone(), None));
 
         // Explicitly set to false
         SubtensorModule::set_liquid_alpha_enabled(netuid, false);
@@ -2584,7 +2584,7 @@ fn test_get_set_alpha() {
             DispatchError::BadOrigin
         );
 
-        assert_ok!(SubtensorModule::register_network(signer.clone()));
+        assert_ok!(SubtensorModule::register_network(signer.clone(), None));
 
         assert_ok!(SubtensorModule::do_set_alpha_values(
             signer.clone(),

pallets/subtensor/tests/migration.rs

@@ -170,7 +170,8 @@ fn test_total_issuance_global() {
         SubtensorModule::add_balance_to_coldkey_account(&owner, lockcost); // Add a balance of 20000 to the coldkey account.
         assert_eq!(SubtensorModule::get_total_issuance(), 0); // initial is zero.
         assert_ok!(SubtensorModule::register_network(
-            <<Test as Config>::RuntimeOrigin>::signed(owner)
+            <<Test as Config>::RuntimeOrigin>::signed(owner),
+            None
         ));
         SubtensorModule::set_max_allowed_uids(netuid, 1); // Set the maximum allowed unique identifiers for the network to 1.
         assert_eq!(SubtensorModule::get_total_issuance(), 0); // initial is zero.