git.delta.rocks / unique-network / refs/commits / 6e3cf5e45846

difftreelog

Merge pull request #919 from UniqueNetwork/feature/crossBalanceOf

Yaroslav Bolyukin2023-04-19parents: #c894432 #a1d8979.patch.diff
in: master

26 files changed

modifiedpallets/fungible/src/erc.rsdiffbeforeafterboth
before · pallets/fungible/src/erc.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617//! ERC-20 standart support implementation.1819extern crate alloc;20use core::char::{REPLACEMENT_CHARACTER, decode_utf16};21use core::convert::TryInto;22use evm_coder::AbiCoder;23use evm_coder::{abi::AbiType, ToLog, generate_stubgen, solidity_interface, types::*};24use up_data_structs::CollectionMode;25use pallet_common::{26	CollectionHandle,27	erc::{CommonEvmHandler, PrecompileResult, CollectionCall},28	eth::CrossAddress,29};30use sp_std::vec::Vec;31use pallet_evm::{account::CrossAccountId, PrecompileHandle};32use pallet_evm_coder_substrate::{33	call, dispatch_to_evm,34	execution::{PreDispatch, Result},35	frontier_contract,36};37use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};38use sp_core::{U256, Get};3940use crate::{41	Allowance, Balance, Config, FungibleHandle, Pallet, TotalSupply, SelfWeightOf,42	weights::WeightInfo,43};4445frontier_contract! {46	macro_rules! FungibleHandle_result {...}47	impl<T: Config> Contract for FungibleHandle<T> {...}48}4950#[derive(ToLog)]51pub enum ERC20Events {52	Transfer {53		#[indexed]54		from: Address,55		#[indexed]56		to: Address,57		value: U256,58	},59	Approval {60		#[indexed]61		owner: Address,62		#[indexed]63		spender: Address,64		value: U256,65	},66}6768#[derive(AbiCoder, Debug)]69pub struct AmountForAddress {70	to: Address,71	amount: U256,72}7374#[solidity_interface(name = ERC20, events(ERC20Events), enum(derive(PreDispatch)), enum_attr(weight), expect_selector = 0x942e8b22)]75impl<T: Config> FungibleHandle<T> {76	fn name(&self) -> Result<String> {77		Ok(decode_utf16(self.name.iter().copied())78			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))79			.collect::<String>())80	}81	fn symbol(&self) -> Result<String> {82		Ok(String::from_utf8_lossy(&self.token_prefix).into())83	}84	fn total_supply(&self) -> Result<U256> {85		self.consume_store_reads(1)?;86		Ok(<TotalSupply<T>>::get(self.id).into())87	}8889	fn decimals(&self) -> Result<u8> {90		Ok(if let CollectionMode::Fungible(decimals) = &self.mode {91			*decimals92		} else {93			unreachable!()94		})95	}96	fn balance_of(&self, owner: Address) -> Result<U256> {97		self.consume_store_reads(1)?;98		let owner = T::CrossAccountId::from_eth(owner);99		let balance = <Balance<T>>::get((self.id, owner));100		Ok(balance.into())101	}102	#[weight(<SelfWeightOf<T>>::transfer())]103	fn transfer(&mut self, caller: Caller, to: Address, amount: U256) -> Result<bool> {104		let caller = T::CrossAccountId::from_eth(caller);105		let to = T::CrossAccountId::from_eth(to);106		let amount = amount.try_into().map_err(|_| "amount overflow")?;107		let budget = self108			.recorder109			.weight_calls_budget(<StructureWeight<T>>::find_parent());110111		<Pallet<T>>::transfer(self, &caller, &to, amount, &budget).map_err(|_| "transfer error")?;112		Ok(true)113	}114115	#[weight(<SelfWeightOf<T>>::transfer_from())]116	fn transfer_from(117		&mut self,118		caller: Caller,119		from: Address,120		to: Address,121		amount: U256,122	) -> Result<bool> {123		let caller = T::CrossAccountId::from_eth(caller);124		let from = T::CrossAccountId::from_eth(from);125		let to = T::CrossAccountId::from_eth(to);126		let amount = amount.try_into().map_err(|_| "amount overflow")?;127		let budget = self128			.recorder129			.weight_calls_budget(<StructureWeight<T>>::find_parent());130131		<Pallet<T>>::transfer_from(self, &caller, &from, &to, amount, &budget)132			.map_err(dispatch_to_evm::<T>)?;133		Ok(true)134	}135	#[weight(<SelfWeightOf<T>>::approve())]136	fn approve(&mut self, caller: Caller, spender: Address, amount: U256) -> Result<bool> {137		let caller = T::CrossAccountId::from_eth(caller);138		let spender = T::CrossAccountId::from_eth(spender);139		let amount = amount.try_into().map_err(|_| "amount overflow")?;140141		<Pallet<T>>::set_allowance(self, &caller, &spender, amount)142			.map_err(dispatch_to_evm::<T>)?;143		Ok(true)144	}145	fn allowance(&self, owner: Address, spender: Address) -> Result<U256> {146		self.consume_store_reads(1)?;147		let owner = T::CrossAccountId::from_eth(owner);148		let spender = T::CrossAccountId::from_eth(spender);149150		Ok(<Allowance<T>>::get((self.id, owner, spender)).into())151	}152}153154#[solidity_interface(name = ERC20Mintable, enum(derive(PreDispatch)), enum_attr(weight))]155impl<T: Config> FungibleHandle<T> {156	/// Mint tokens for `to` account.157	/// @param to account that will receive minted tokens158	/// @param amount amount of tokens to mint159	#[weight(<SelfWeightOf<T>>::create_item())]160	fn mint(&mut self, caller: Caller, to: Address, amount: U256) -> Result<bool> {161		let caller = T::CrossAccountId::from_eth(caller);162		let to = T::CrossAccountId::from_eth(to);163		let amount = amount.try_into().map_err(|_| "amount overflow")?;164		let budget = self165			.recorder166			.weight_calls_budget(<StructureWeight<T>>::find_parent());167		<Pallet<T>>::create_item(self, &caller, (to, amount), &budget)168			.map_err(dispatch_to_evm::<T>)?;169		Ok(true)170	}171}172173#[solidity_interface(name = ERC20UniqueExtensions, enum(derive(PreDispatch)), enum_attr(weight))]174impl<T: Config> FungibleHandle<T>175where176	T::AccountId: From<[u8; 32]>,177{178	/// @dev Function to check the amount of tokens that an owner allowed to a spender.179	/// @param owner crossAddress The address which owns the funds.180	/// @param spender crossAddress The address which will spend the funds.181	/// @return A uint256 specifying the amount of tokens still available for the spender.182	fn allowance_cross(&self, owner: CrossAddress, spender: CrossAddress) -> Result<U256> {183		let owner = owner.into_sub_cross_account::<T>()?;184		let spender = spender.into_sub_cross_account::<T>()?;185186		Ok(<Allowance<T>>::get((self.id, owner, spender)).into())187	}188189	/// @notice A description for the collection.190	fn description(&self) -> String {191		decode_utf16(self.description.iter().copied())192			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))193			.collect::<String>()194	}195196	#[weight(<SelfWeightOf<T>>::create_item())]197	fn mint_cross(&mut self, caller: Caller, to: CrossAddress, amount: U256) -> Result<bool> {198		let caller = T::CrossAccountId::from_eth(caller);199		let to = to.into_sub_cross_account::<T>()?;200		let amount = amount.try_into().map_err(|_| "amount overflow")?;201		let budget = self202			.recorder203			.weight_calls_budget(<StructureWeight<T>>::find_parent());204		<Pallet<T>>::create_item(&self, &caller, (to, amount), &budget)205			.map_err(dispatch_to_evm::<T>)?;206		Ok(true)207	}208209	#[weight(<SelfWeightOf<T>>::approve())]210	fn approve_cross(211		&mut self,212		caller: Caller,213		spender: CrossAddress,214		amount: U256,215	) -> Result<bool> {216		let caller = T::CrossAccountId::from_eth(caller);217		let spender = spender.into_sub_cross_account::<T>()?;218		let amount = amount.try_into().map_err(|_| "amount overflow")?;219220		<Pallet<T>>::set_allowance(self, &caller, &spender, amount)221			.map_err(dispatch_to_evm::<T>)?;222		Ok(true)223	}224225	/// Burn tokens from account226	/// @dev Function that burns an `amount` of the tokens of a given account,227	/// deducting from the sender's allowance for said account.228	/// @param from The account whose tokens will be burnt.229	/// @param amount The amount that will be burnt.230	#[solidity(hide)]231	#[weight(<SelfWeightOf<T>>::burn_from())]232	fn burn_from(&mut self, caller: Caller, from: Address, amount: U256) -> Result<bool> {233		let caller = T::CrossAccountId::from_eth(caller);234		let from = T::CrossAccountId::from_eth(from);235		let amount = amount.try_into().map_err(|_| "amount overflow")?;236		let budget = self237			.recorder238			.weight_calls_budget(<StructureWeight<T>>::find_parent());239240		<Pallet<T>>::burn_from(self, &caller, &from, amount, &budget)241			.map_err(dispatch_to_evm::<T>)?;242		Ok(true)243	}244245	/// Burn tokens from account246	/// @dev Function that burns an `amount` of the tokens of a given account,247	/// deducting from the sender's allowance for said account.248	/// @param from The account whose tokens will be burnt.249	/// @param amount The amount that will be burnt.250	#[weight(<SelfWeightOf<T>>::burn_from())]251	fn burn_from_cross(252		&mut self,253		caller: Caller,254		from: CrossAddress,255		amount: U256,256	) -> Result<bool> {257		let caller = T::CrossAccountId::from_eth(caller);258		let from = from.into_sub_cross_account::<T>()?;259		let amount = amount.try_into().map_err(|_| "amount overflow")?;260		let budget = self261			.recorder262			.weight_calls_budget(<StructureWeight<T>>::find_parent());263264		<Pallet<T>>::burn_from(self, &caller, &from, amount, &budget)265			.map_err(dispatch_to_evm::<T>)?;266		Ok(true)267	}268269	/// Mint tokens for multiple accounts.270	/// @param amounts array of pairs of account address and amount271	#[weight(<SelfWeightOf<T>>::create_multiple_items_ex(amounts.len() as u32))]272	fn mint_bulk(&mut self, caller: Caller, amounts: Vec<AmountForAddress>) -> Result<bool> {273		let caller = T::CrossAccountId::from_eth(caller);274		let budget = self275			.recorder276			.weight_calls_budget(<StructureWeight<T>>::find_parent());277		let amounts = amounts278			.into_iter()279			.map(|AmountForAddress { to, amount }| {280				Ok((281					T::CrossAccountId::from_eth(to),282					amount.try_into().map_err(|_| "amount overflow")?,283				))284			})285			.collect::<Result<_>>()?;286287		<Pallet<T>>::create_multiple_items(self, &caller, amounts, &budget)288			.map_err(dispatch_to_evm::<T>)?;289		Ok(true)290	}291292	#[weight(<SelfWeightOf<T>>::transfer())]293	fn transfer_cross(&mut self, caller: Caller, to: CrossAddress, amount: U256) -> Result<bool> {294		let caller = T::CrossAccountId::from_eth(caller);295		let to = to.into_sub_cross_account::<T>()?;296		let amount = amount.try_into().map_err(|_| "amount overflow")?;297		let budget = self298			.recorder299			.weight_calls_budget(<StructureWeight<T>>::find_parent());300301		<Pallet<T>>::transfer(self, &caller, &to, amount, &budget).map_err(|_| "transfer error")?;302		Ok(true)303	}304305	#[weight(<SelfWeightOf<T>>::transfer_from())]306	fn transfer_from_cross(307		&mut self,308		caller: Caller,309		from: CrossAddress,310		to: CrossAddress,311		amount: U256,312	) -> Result<bool> {313		let caller = T::CrossAccountId::from_eth(caller);314		let from = from.into_sub_cross_account::<T>()?;315		let to = to.into_sub_cross_account::<T>()?;316		let amount = amount.try_into().map_err(|_| "amount overflow")?;317		let budget = self318			.recorder319			.weight_calls_budget(<StructureWeight<T>>::find_parent());320321		<Pallet<T>>::transfer_from(self, &caller, &from, &to, amount, &budget)322			.map_err(dispatch_to_evm::<T>)?;323		Ok(true)324	}325326	/// @notice Returns collection helper contract address327	fn collection_helper_address(&self) -> Result<Address> {328		Ok(T::ContractAddress::get())329	}330}331332#[solidity_interface(333	name = UniqueFungible,334	is(335		ERC20,336		ERC20Mintable,337		ERC20UniqueExtensions,338		Collection(via(common_mut returns CollectionHandle<T>)),339	),340	enum(derive(PreDispatch))341)]342impl<T: Config> FungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}343344generate_stubgen!(gen_impl, UniqueFungibleCall<()>, true);345generate_stubgen!(gen_iface, UniqueFungibleCall<()>, false);346347impl<T: Config> CommonEvmHandler for FungibleHandle<T>348where349	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,350{351	const CODE: &'static [u8] = include_bytes!("./stubs/UniqueFungible.raw");352353	fn call(self, handle: &mut impl PrecompileHandle) -> Option<PrecompileResult> {354		call::<T, UniqueFungibleCall<T>, _, _>(handle, self)355	}356}
after · pallets/fungible/src/erc.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617//! ERC-20 standart support implementation.1819extern crate alloc;20use core::char::{REPLACEMENT_CHARACTER, decode_utf16};21use core::convert::TryInto;22use evm_coder::AbiCoder;23use evm_coder::{abi::AbiType, ToLog, generate_stubgen, solidity_interface, types::*};24use up_data_structs::CollectionMode;25use pallet_common::{26	CollectionHandle,27	erc::{CommonEvmHandler, PrecompileResult, CollectionCall},28	eth::CrossAddress,29};30use sp_std::vec::Vec;31use pallet_evm::{account::CrossAccountId, PrecompileHandle};32use pallet_evm_coder_substrate::{33	call, dispatch_to_evm,34	execution::{PreDispatch, Result},35	frontier_contract,36};37use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};38use sp_core::{U256, Get};3940use crate::{41	Allowance, Balance, Config, FungibleHandle, Pallet, TotalSupply, SelfWeightOf,42	weights::WeightInfo,43};4445frontier_contract! {46	macro_rules! FungibleHandle_result {...}47	impl<T: Config> Contract for FungibleHandle<T> {...}48}4950#[derive(ToLog)]51pub enum ERC20Events {52	Transfer {53		#[indexed]54		from: Address,55		#[indexed]56		to: Address,57		value: U256,58	},59	Approval {60		#[indexed]61		owner: Address,62		#[indexed]63		spender: Address,64		value: U256,65	},66}6768#[derive(AbiCoder, Debug)]69pub struct AmountForAddress {70	to: Address,71	amount: U256,72}7374#[solidity_interface(name = ERC20, events(ERC20Events), enum(derive(PreDispatch)), enum_attr(weight), expect_selector = 0x942e8b22)]75impl<T: Config> FungibleHandle<T> {76	fn name(&self) -> Result<String> {77		Ok(decode_utf16(self.name.iter().copied())78			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))79			.collect::<String>())80	}81	fn symbol(&self) -> Result<String> {82		Ok(String::from_utf8_lossy(&self.token_prefix).into())83	}84	fn total_supply(&self) -> Result<U256> {85		self.consume_store_reads(1)?;86		Ok(<TotalSupply<T>>::get(self.id).into())87	}8889	fn decimals(&self) -> Result<u8> {90		Ok(if let CollectionMode::Fungible(decimals) = &self.mode {91			*decimals92		} else {93			unreachable!()94		})95	}96	fn balance_of(&self, owner: Address) -> Result<U256> {97		self.consume_store_reads(1)?;98		let owner = T::CrossAccountId::from_eth(owner);99		let balance = <Balance<T>>::get((self.id, owner));100		Ok(balance.into())101	}102	#[weight(<SelfWeightOf<T>>::transfer())]103	fn transfer(&mut self, caller: Caller, to: Address, amount: U256) -> Result<bool> {104		let caller = T::CrossAccountId::from_eth(caller);105		let to = T::CrossAccountId::from_eth(to);106		let amount = amount.try_into().map_err(|_| "amount overflow")?;107		let budget = self108			.recorder109			.weight_calls_budget(<StructureWeight<T>>::find_parent());110111		<Pallet<T>>::transfer(self, &caller, &to, amount, &budget).map_err(|_| "transfer error")?;112		Ok(true)113	}114115	#[weight(<SelfWeightOf<T>>::transfer_from())]116	fn transfer_from(117		&mut self,118		caller: Caller,119		from: Address,120		to: Address,121		amount: U256,122	) -> Result<bool> {123		let caller = T::CrossAccountId::from_eth(caller);124		let from = T::CrossAccountId::from_eth(from);125		let to = T::CrossAccountId::from_eth(to);126		let amount = amount.try_into().map_err(|_| "amount overflow")?;127		let budget = self128			.recorder129			.weight_calls_budget(<StructureWeight<T>>::find_parent());130131		<Pallet<T>>::transfer_from(self, &caller, &from, &to, amount, &budget)132			.map_err(dispatch_to_evm::<T>)?;133		Ok(true)134	}135	#[weight(<SelfWeightOf<T>>::approve())]136	fn approve(&mut self, caller: Caller, spender: Address, amount: U256) -> Result<bool> {137		let caller = T::CrossAccountId::from_eth(caller);138		let spender = T::CrossAccountId::from_eth(spender);139		let amount = amount.try_into().map_err(|_| "amount overflow")?;140141		<Pallet<T>>::set_allowance(self, &caller, &spender, amount)142			.map_err(dispatch_to_evm::<T>)?;143		Ok(true)144	}145	fn allowance(&self, owner: Address, spender: Address) -> Result<U256> {146		self.consume_store_reads(1)?;147		let owner = T::CrossAccountId::from_eth(owner);148		let spender = T::CrossAccountId::from_eth(spender);149150		Ok(<Allowance<T>>::get((self.id, owner, spender)).into())151	}152}153154#[solidity_interface(name = ERC20Mintable, enum(derive(PreDispatch)), enum_attr(weight))]155impl<T: Config> FungibleHandle<T> {156	/// Mint tokens for `to` account.157	/// @param to account that will receive minted tokens158	/// @param amount amount of tokens to mint159	#[weight(<SelfWeightOf<T>>::create_item())]160	fn mint(&mut self, caller: Caller, to: Address, amount: U256) -> Result<bool> {161		let caller = T::CrossAccountId::from_eth(caller);162		let to = T::CrossAccountId::from_eth(to);163		let amount = amount.try_into().map_err(|_| "amount overflow")?;164		let budget = self165			.recorder166			.weight_calls_budget(<StructureWeight<T>>::find_parent());167		<Pallet<T>>::create_item(self, &caller, (to, amount), &budget)168			.map_err(dispatch_to_evm::<T>)?;169		Ok(true)170	}171}172173#[solidity_interface(name = ERC20UniqueExtensions, enum(derive(PreDispatch)), enum_attr(weight))]174impl<T: Config> FungibleHandle<T>175where176	T::AccountId: From<[u8; 32]>,177{178	/// @dev Function to check the amount of tokens that an owner allowed to a spender.179	/// @param owner crossAddress The address which owns the funds.180	/// @param spender crossAddress The address which will spend the funds.181	/// @return A uint256 specifying the amount of tokens still available for the spender.182	fn allowance_cross(&self, owner: CrossAddress, spender: CrossAddress) -> Result<U256> {183		let owner = owner.into_sub_cross_account::<T>()?;184		let spender = spender.into_sub_cross_account::<T>()?;185186		Ok(<Allowance<T>>::get((self.id, owner, spender)).into())187	}188189	/// @notice A description for the collection.190	fn description(&self) -> String {191		decode_utf16(self.description.iter().copied())192			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))193			.collect::<String>()194	}195196	#[weight(<SelfWeightOf<T>>::create_item())]197	fn mint_cross(&mut self, caller: Caller, to: CrossAddress, amount: U256) -> Result<bool> {198		let caller = T::CrossAccountId::from_eth(caller);199		let to = to.into_sub_cross_account::<T>()?;200		let amount = amount.try_into().map_err(|_| "amount overflow")?;201		let budget = self202			.recorder203			.weight_calls_budget(<StructureWeight<T>>::find_parent());204		<Pallet<T>>::create_item(&self, &caller, (to, amount), &budget)205			.map_err(dispatch_to_evm::<T>)?;206		Ok(true)207	}208209	#[weight(<SelfWeightOf<T>>::approve())]210	fn approve_cross(211		&mut self,212		caller: Caller,213		spender: CrossAddress,214		amount: U256,215	) -> Result<bool> {216		let caller = T::CrossAccountId::from_eth(caller);217		let spender = spender.into_sub_cross_account::<T>()?;218		let amount = amount.try_into().map_err(|_| "amount overflow")?;219220		<Pallet<T>>::set_allowance(self, &caller, &spender, amount)221			.map_err(dispatch_to_evm::<T>)?;222		Ok(true)223	}224225	/// Burn tokens from account226	/// @dev Function that burns an `amount` of the tokens of a given account,227	/// deducting from the sender's allowance for said account.228	/// @param from The account whose tokens will be burnt.229	/// @param amount The amount that will be burnt.230	#[solidity(hide)]231	#[weight(<SelfWeightOf<T>>::burn_from())]232	fn burn_from(&mut self, caller: Caller, from: Address, amount: U256) -> Result<bool> {233		let caller = T::CrossAccountId::from_eth(caller);234		let from = T::CrossAccountId::from_eth(from);235		let amount = amount.try_into().map_err(|_| "amount overflow")?;236		let budget = self237			.recorder238			.weight_calls_budget(<StructureWeight<T>>::find_parent());239240		<Pallet<T>>::burn_from(self, &caller, &from, amount, &budget)241			.map_err(dispatch_to_evm::<T>)?;242		Ok(true)243	}244245	/// Burn tokens from account246	/// @dev Function that burns an `amount` of the tokens of a given account,247	/// deducting from the sender's allowance for said account.248	/// @param from The account whose tokens will be burnt.249	/// @param amount The amount that will be burnt.250	#[weight(<SelfWeightOf<T>>::burn_from())]251	fn burn_from_cross(252		&mut self,253		caller: Caller,254		from: CrossAddress,255		amount: U256,256	) -> Result<bool> {257		let caller = T::CrossAccountId::from_eth(caller);258		let from = from.into_sub_cross_account::<T>()?;259		let amount = amount.try_into().map_err(|_| "amount overflow")?;260		let budget = self261			.recorder262			.weight_calls_budget(<StructureWeight<T>>::find_parent());263264		<Pallet<T>>::burn_from(self, &caller, &from, amount, &budget)265			.map_err(dispatch_to_evm::<T>)?;266		Ok(true)267	}268269	/// Mint tokens for multiple accounts.270	/// @param amounts array of pairs of account address and amount271	#[weight(<SelfWeightOf<T>>::create_multiple_items_ex(amounts.len() as u32))]272	fn mint_bulk(&mut self, caller: Caller, amounts: Vec<AmountForAddress>) -> Result<bool> {273		let caller = T::CrossAccountId::from_eth(caller);274		let budget = self275			.recorder276			.weight_calls_budget(<StructureWeight<T>>::find_parent());277		let amounts = amounts278			.into_iter()279			.map(|AmountForAddress { to, amount }| {280				Ok((281					T::CrossAccountId::from_eth(to),282					amount.try_into().map_err(|_| "amount overflow")?,283				))284			})285			.collect::<Result<_>>()?;286287		<Pallet<T>>::create_multiple_items(self, &caller, amounts, &budget)288			.map_err(dispatch_to_evm::<T>)?;289		Ok(true)290	}291292	#[weight(<SelfWeightOf<T>>::transfer())]293	fn transfer_cross(&mut self, caller: Caller, to: CrossAddress, amount: U256) -> Result<bool> {294		let caller = T::CrossAccountId::from_eth(caller);295		let to = to.into_sub_cross_account::<T>()?;296		let amount = amount.try_into().map_err(|_| "amount overflow")?;297		let budget = self298			.recorder299			.weight_calls_budget(<StructureWeight<T>>::find_parent());300301		<Pallet<T>>::transfer(self, &caller, &to, amount, &budget).map_err(|_| "transfer error")?;302		Ok(true)303	}304305	#[weight(<SelfWeightOf<T>>::transfer_from())]306	fn transfer_from_cross(307		&mut self,308		caller: Caller,309		from: CrossAddress,310		to: CrossAddress,311		amount: U256,312	) -> Result<bool> {313		let caller = T::CrossAccountId::from_eth(caller);314		let from = from.into_sub_cross_account::<T>()?;315		let to = to.into_sub_cross_account::<T>()?;316		let amount = amount.try_into().map_err(|_| "amount overflow")?;317		let budget = self318			.recorder319			.weight_calls_budget(<StructureWeight<T>>::find_parent());320321		<Pallet<T>>::transfer_from(self, &caller, &from, &to, amount, &budget)322			.map_err(dispatch_to_evm::<T>)?;323		Ok(true)324	}325326	/// @notice Returns collection helper contract address327	fn collection_helper_address(&self) -> Result<Address> {328		Ok(T::ContractAddress::get())329	}330331	/// @notice Balance of account332	/// @param owner An cross address for whom to query the balance333	/// @return The number of fingibles owned by `owner`, possibly zero334	fn balance_of_cross(&self, owner: CrossAddress) -> Result<U256> {335		self.consume_store_reads(1)?;336		let balance = <Balance<T>>::get((self.id, owner.into_sub_cross_account::<T>()?));337		Ok(balance.into())338	}339}340341#[solidity_interface(342	name = UniqueFungible,343	is(344		ERC20,345		ERC20Mintable,346		ERC20UniqueExtensions,347		Collection(via(common_mut returns CollectionHandle<T>)),348	),349	enum(derive(PreDispatch))350)]351impl<T: Config> FungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}352353generate_stubgen!(gen_impl, UniqueFungibleCall<()>, true);354generate_stubgen!(gen_iface, UniqueFungibleCall<()>, false);355356impl<T: Config> CommonEvmHandler for FungibleHandle<T>357where358	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,359{360	const CODE: &'static [u8] = include_bytes!("./stubs/UniqueFungible.raw");361362	fn call(self, handle: &mut impl PrecompileHandle) -> Option<PrecompileResult> {363		call::<T, UniqueFungibleCall<T>, _, _>(handle, self)364	}365}
modifiedpallets/fungible/src/stubs/UniqueFungible.rawdiffbeforeafterboth

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modifiedpallets/fungible/src/stubs/UniqueFungible.soldiffbeforeafterboth
--- a/pallets/fungible/src/stubs/UniqueFungible.sol
+++ b/pallets/fungible/src/stubs/UniqueFungible.sol
@@ -511,7 +511,7 @@
 	bytes value;
 }
 
-/// @dev the ERC-165 identifier for this interface is 0x85d7dea6
+/// @dev the ERC-165 identifier for this interface is 0x69d14d3e
 contract ERC20UniqueExtensions is Dummy, ERC165 {
 	/// @dev Function to check the amount of tokens that an owner allowed to a spender.
 	/// @param owner crossAddress The address which owns the funds.
@@ -630,6 +630,18 @@
 		dummy;
 		return 0x0000000000000000000000000000000000000000;
 	}
+
+	/// @notice Balance of account
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of fingibles owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) public view returns (uint256) {
+		require(false, stub_error);
+		owner;
+		dummy;
+		return 0;
+	}
 }
 
 struct AmountForAddress {
modifiedpallets/nonfungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -749,12 +749,29 @@
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
+	#[solidity(hide)]
 	fn cross_owner_of(&self, token_id: U256) -> Result<eth::CrossAddress> {
+		Self::owner_of_cross(&self, token_id)
+	}
+
+	/// Returns the owner (in cross format) of the token.
+	///
+	/// @param tokenId Id for the token.
+	fn owner_of_cross(&self, token_id: U256) -> Result<eth::CrossAddress> {
 		Self::token_owner(&self, token_id.try_into()?)
 			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))
 			.map_err(|_| Error::Revert("token not found".into()))
 	}
 
+	/// @notice Count all NFTs assigned to an owner
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of NFTs owned by `owner`, possibly zero
+	fn balance_of_cross(&self, owner: eth::CrossAddress) -> Result<U256> {
+		self.consume_store_reads(1)?;
+		let balance = <AccountBalance<T>>::get((self.id, owner.into_sub_cross_account::<T>()?));
+		Ok(balance.into())
+	}
+
 	/// Returns the token properties.
 	///
 	/// @param tokenId Id for the token.
modifiedpallets/nonfungible/src/stubs/UniqueNFT.rawdiffbeforeafterboth

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modifiedpallets/nonfungible/src/stubs/UniqueNFT.soldiffbeforeafterboth
--- a/pallets/nonfungible/src/stubs/UniqueNFT.sol
+++ b/pallets/nonfungible/src/stubs/UniqueNFT.sol
@@ -774,7 +774,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x16de3152
+/// @dev the ERC-165 identifier for this interface is 0x307b061a
 contract ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -803,18 +803,42 @@
 		return "";
 	}
 
+	// /// Returns the owner (in cross format) of the token.
+	// ///
+	// /// @param tokenId Id for the token.
+	// /// @dev EVM selector for this function is: 0x2b29dace,
+	// ///  or in textual repr: crossOwnerOf(uint256)
+	// function crossOwnerOf(uint256 tokenId) public view returns (CrossAddress memory) {
+	// 	require(false, stub_error);
+	// 	tokenId;
+	// 	dummy;
+	// 	return CrossAddress(0x0000000000000000000000000000000000000000,0);
+	// }
+
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
-	/// @dev EVM selector for this function is: 0x2b29dace,
-	///  or in textual repr: crossOwnerOf(uint256)
-	function crossOwnerOf(uint256 tokenId) public view returns (CrossAddress memory) {
+	/// @dev EVM selector for this function is: 0xcaa3a4d0,
+	///  or in textual repr: ownerOfCross(uint256)
+	function ownerOfCross(uint256 tokenId) public view returns (CrossAddress memory) {
 		require(false, stub_error);
 		tokenId;
 		dummy;
 		return CrossAddress(0x0000000000000000000000000000000000000000, 0);
 	}
 
+	/// @notice Count all NFTs assigned to an owner
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of NFTs owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) public view returns (uint256) {
+		require(false, stub_error);
+		owner;
+		dummy;
+		return 0;
+	}
+
 	/// Returns the token properties.
 	///
 	/// @param tokenId Id for the token.
modifiedpallets/refungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -783,7 +783,15 @@
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
+	#[solidity(hide)]
 	fn cross_owner_of(&self, token_id: U256) -> Result<eth::CrossAddress> {
+		Self::owner_of_cross(&self, token_id)
+	}
+
+	/// Returns the owner (in cross format) of the token.
+	///
+	/// @param tokenId Id for the token.
+	fn owner_of_cross(&self, token_id: U256) -> Result<eth::CrossAddress> {
 		Self::token_owner(&self, token_id.try_into()?)
 			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))
 			.or_else(|err| match err {
@@ -794,6 +802,15 @@
 			})
 	}
 
+	/// @notice Count all RFTs assigned to an owner
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of RFTs owned by `owner`, possibly zero
+	fn balance_of_cross(&self, owner: eth::CrossAddress) -> Result<U256> {
+		self.consume_store_reads(1)?;
+		let balance = <AccountBalance<T>>::get((self.id, owner.into_sub_cross_account::<T>()?));
+		Ok(balance.into())
+	}
+
 	/// Returns the token properties.
 	///
 	/// @param tokenId Id for the token.
modifiedpallets/refungible/src/erc_token.rsdiffbeforeafterboth
--- a/pallets/refungible/src/erc_token.rs
+++ b/pallets/refungible/src/erc_token.rs
@@ -283,6 +283,16 @@
 			.map_err(dispatch_to_evm::<T>)?;
 		Ok(true)
 	}
+
+	/// @notice Balance of account
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of fingibles owned by `owner`, possibly zero
+	fn balance_of_cross(&self, owner: CrossAddress) -> Result<U256> {
+		self.consume_store_reads(1)?;
+		let balance = <Balance<T>>::get((self.id, self.1, owner.into_sub_cross_account::<T>()?));
+		Ok(balance.into())
+	}
+
 	/// @dev Function that changes total amount of the tokens.
 	///  Throws if `msg.sender` doesn't owns all of the tokens.
 	/// @param amount New total amount of the tokens.
modifiedpallets/refungible/src/stubs/UniqueRefungible.rawdiffbeforeafterboth

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modifiedpallets/refungible/src/stubs/UniqueRefungible.soldiffbeforeafterboth
--- a/pallets/refungible/src/stubs/UniqueRefungible.sol
+++ b/pallets/refungible/src/stubs/UniqueRefungible.sol
@@ -774,7 +774,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0xb365c124
+/// @dev the ERC-165 identifier for this interface is 0x95c0f66c
 contract ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -803,18 +803,42 @@
 		return "";
 	}
 
+	// /// Returns the owner (in cross format) of the token.
+	// ///
+	// /// @param tokenId Id for the token.
+	// /// @dev EVM selector for this function is: 0x2b29dace,
+	// ///  or in textual repr: crossOwnerOf(uint256)
+	// function crossOwnerOf(uint256 tokenId) public view returns (CrossAddress memory) {
+	// 	require(false, stub_error);
+	// 	tokenId;
+	// 	dummy;
+	// 	return CrossAddress(0x0000000000000000000000000000000000000000,0);
+	// }
+
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
-	/// @dev EVM selector for this function is: 0x2b29dace,
-	///  or in textual repr: crossOwnerOf(uint256)
-	function crossOwnerOf(uint256 tokenId) public view returns (CrossAddress memory) {
+	/// @dev EVM selector for this function is: 0xcaa3a4d0,
+	///  or in textual repr: ownerOfCross(uint256)
+	function ownerOfCross(uint256 tokenId) public view returns (CrossAddress memory) {
 		require(false, stub_error);
 		tokenId;
 		dummy;
 		return CrossAddress(0x0000000000000000000000000000000000000000, 0);
 	}
 
+	/// @notice Count all RFTs assigned to an owner
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of RFTs owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) public view returns (uint256) {
+		require(false, stub_error);
+		owner;
+		dummy;
+		return 0;
+	}
+
 	/// Returns the token properties.
 	///
 	/// @param tokenId Id for the token.
modifiedpallets/refungible/src/stubs/UniqueRefungibleToken.rawdiffbeforeafterboth

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modifiedpallets/refungible/src/stubs/UniqueRefungibleToken.soldiffbeforeafterboth
--- a/pallets/refungible/src/stubs/UniqueRefungibleToken.sol
+++ b/pallets/refungible/src/stubs/UniqueRefungibleToken.sol
@@ -36,7 +36,7 @@
 	}
 }
 
-/// @dev the ERC-165 identifier for this interface is 0x01d536fc
+/// @dev the ERC-165 identifier for this interface is 0xedd3a564
 contract ERC20UniqueExtensions is Dummy, ERC165 {
 	/// @dev Function to check the amount of tokens that an owner allowed to a spender.
 	/// @param owner crossAddress The address which owns the funds.
@@ -97,6 +97,18 @@
 		return false;
 	}
 
+	/// @notice Balance of account
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of fingibles owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) public view returns (uint256) {
+		require(false, stub_error);
+		owner;
+		dummy;
+		return 0;
+	}
+
 	/// @dev Function that changes total amount of the tokens.
 	///  Throws if `msg.sender` doesn't owns all of the tokens.
 	/// @param amount New total amount of the tokens.
modifiedruntime/common/ethereum/sponsoring/refungible.rsdiffbeforeafterboth
--- a/runtime/common/ethereum/sponsoring/refungible.rs
+++ b/runtime/common/ethereum/sponsoring/refungible.rs
@@ -227,6 +227,8 @@
 			| Symbol
 			| Description
 			| CrossOwnerOf { .. }
+			| OwnerOfCross { .. }
+			| BalanceOfCross { .. }
 			| Properties { .. }
 			| NextTokenId
 			| TokenContractAddress { .. }
@@ -341,9 +343,11 @@
 			ERC165Call(_, _) => None,
 
 			// Not sponsored
-			AllowanceCross { .. } | BurnFrom { .. } | BurnFromCross { .. } | Repartition { .. } => {
-				None
-			}
+			AllowanceCross { .. }
+			| BalanceOfCross { .. }
+			| BurnFrom { .. }
+			| BurnFromCross { .. }
+			| Repartition { .. } => None,
 
 			TransferCross { .. } | TransferFromCross { .. } => {
 				let RefungibleTokenHandle(handle, token_id) = token;
modifiedtests/src/eth/abi/fungible.jsondiffbeforeafterboth
--- a/tests/src/eth/abi/fungible.json
+++ b/tests/src/eth/abi/fungible.json
@@ -181,6 +181,23 @@
           { "internalType": "uint256", "name": "sub", "type": "uint256" }
         ],
         "internalType": "struct CrossAddress",
+        "name": "owner",
+        "type": "tuple"
+      }
+    ],
+    "name": "balanceOfCross",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "components": [
+          { "internalType": "address", "name": "eth", "type": "address" },
+          { "internalType": "uint256", "name": "sub", "type": "uint256" }
+        ],
+        "internalType": "struct CrossAddress",
         "name": "from",
         "type": "tuple"
       },
modifiedtests/src/eth/abi/nonFungible.jsondiffbeforeafterboth
--- a/tests/src/eth/abi/nonFungible.json
+++ b/tests/src/eth/abi/nonFungible.json
@@ -177,6 +177,23 @@
   },
   {
     "inputs": [
+      {
+        "components": [
+          { "internalType": "address", "name": "eth", "type": "address" },
+          { "internalType": "uint256", "name": "sub", "type": "uint256" }
+        ],
+        "internalType": "struct CrossAddress",
+        "name": "owner",
+        "type": "tuple"
+      }
+    ],
+    "name": "balanceOfCross",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
       { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
     ],
     "name": "burn",
@@ -386,25 +403,6 @@
   },
   {
     "inputs": [
-      { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
-    ],
-    "name": "crossOwnerOf",
-    "outputs": [
-      {
-        "components": [
-          { "internalType": "address", "name": "eth", "type": "address" },
-          { "internalType": "uint256", "name": "sub", "type": "uint256" }
-        ],
-        "internalType": "struct CrossAddress",
-        "name": "",
-        "type": "tuple"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [
       { "internalType": "string[]", "name": "keys", "type": "string[]" }
     ],
     "name": "deleteCollectionProperties",
@@ -540,6 +538,25 @@
   },
   {
     "inputs": [
+      { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
+    ],
+    "name": "ownerOfCross",
+    "outputs": [
+      {
+        "components": [
+          { "internalType": "address", "name": "eth", "type": "address" },
+          { "internalType": "uint256", "name": "sub", "type": "uint256" }
+        ],
+        "internalType": "struct CrossAddress",
+        "name": "",
+        "type": "tuple"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
       { "internalType": "uint256", "name": "tokenId", "type": "uint256" },
       { "internalType": "string[]", "name": "keys", "type": "string[]" }
     ],
modifiedtests/src/eth/abi/reFungible.jsondiffbeforeafterboth
--- a/tests/src/eth/abi/reFungible.json
+++ b/tests/src/eth/abi/reFungible.json
@@ -159,6 +159,23 @@
   },
   {
     "inputs": [
+      {
+        "components": [
+          { "internalType": "address", "name": "eth", "type": "address" },
+          { "internalType": "uint256", "name": "sub", "type": "uint256" }
+        ],
+        "internalType": "struct CrossAddress",
+        "name": "owner",
+        "type": "tuple"
+      }
+    ],
+    "name": "balanceOfCross",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
       { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
     ],
     "name": "burn",
@@ -368,25 +385,6 @@
   },
   {
     "inputs": [
-      { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
-    ],
-    "name": "crossOwnerOf",
-    "outputs": [
-      {
-        "components": [
-          { "internalType": "address", "name": "eth", "type": "address" },
-          { "internalType": "uint256", "name": "sub", "type": "uint256" }
-        ],
-        "internalType": "struct CrossAddress",
-        "name": "",
-        "type": "tuple"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [
       { "internalType": "string[]", "name": "keys", "type": "string[]" }
     ],
     "name": "deleteCollectionProperties",
@@ -522,6 +520,25 @@
   },
   {
     "inputs": [
+      { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
+    ],
+    "name": "ownerOfCross",
+    "outputs": [
+      {
+        "components": [
+          { "internalType": "address", "name": "eth", "type": "address" },
+          { "internalType": "uint256", "name": "sub", "type": "uint256" }
+        ],
+        "internalType": "struct CrossAddress",
+        "name": "",
+        "type": "tuple"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
       { "internalType": "uint256", "name": "tokenId", "type": "uint256" },
       { "internalType": "string[]", "name": "keys", "type": "string[]" }
     ],
modifiedtests/src/eth/abi/reFungibleToken.jsondiffbeforeafterboth
--- a/tests/src/eth/abi/reFungibleToken.json
+++ b/tests/src/eth/abi/reFungibleToken.json
@@ -130,6 +130,23 @@
           { "internalType": "uint256", "name": "sub", "type": "uint256" }
         ],
         "internalType": "struct CrossAddress",
+        "name": "owner",
+        "type": "tuple"
+      }
+    ],
+    "name": "balanceOfCross",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "components": [
+          { "internalType": "address", "name": "eth", "type": "address" },
+          { "internalType": "uint256", "name": "sub", "type": "uint256" }
+        ],
+        "internalType": "struct CrossAddress",
         "name": "from",
         "type": "tuple"
       },
modifiedtests/src/eth/api/UniqueFungible.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueFungible.sol
+++ b/tests/src/eth/api/UniqueFungible.sol
@@ -353,7 +353,7 @@
 	bytes value;
 }
 
-/// @dev the ERC-165 identifier for this interface is 0x85d7dea6
+/// @dev the ERC-165 identifier for this interface is 0x69d14d3e
 interface ERC20UniqueExtensions is Dummy, ERC165 {
 	/// @dev Function to check the amount of tokens that an owner allowed to a spender.
 	/// @param owner crossAddress The address which owns the funds.
@@ -416,6 +416,13 @@
 	/// @dev EVM selector for this function is: 0x1896cce6,
 	///  or in textual repr: collectionHelperAddress()
 	function collectionHelperAddress() external view returns (address);
+
+	/// @notice Balance of account
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of fingibles owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) external view returns (uint256);
 }
 
 struct AmountForAddress {
modifiedtests/src/eth/api/UniqueNFT.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueNFT.sol
+++ b/tests/src/eth/api/UniqueNFT.sol
@@ -533,7 +533,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x16de3152
+/// @dev the ERC-165 identifier for this interface is 0x307b061a
 interface ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -550,12 +550,26 @@
 	///  or in textual repr: description()
 	function description() external view returns (string memory);
 
+	// /// Returns the owner (in cross format) of the token.
+	// ///
+	// /// @param tokenId Id for the token.
+	// /// @dev EVM selector for this function is: 0x2b29dace,
+	// ///  or in textual repr: crossOwnerOf(uint256)
+	// function crossOwnerOf(uint256 tokenId) external view returns (CrossAddress memory);
+
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
-	/// @dev EVM selector for this function is: 0x2b29dace,
-	///  or in textual repr: crossOwnerOf(uint256)
-	function crossOwnerOf(uint256 tokenId) external view returns (CrossAddress memory);
+	/// @dev EVM selector for this function is: 0xcaa3a4d0,
+	///  or in textual repr: ownerOfCross(uint256)
+	function ownerOfCross(uint256 tokenId) external view returns (CrossAddress memory);
+
+	/// @notice Count all NFTs assigned to an owner
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of NFTs owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) external view returns (uint256);
 
 	/// Returns the token properties.
 	///
modifiedtests/src/eth/api/UniqueRefungible.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueRefungible.sol
+++ b/tests/src/eth/api/UniqueRefungible.sol
@@ -533,7 +533,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0xb365c124
+/// @dev the ERC-165 identifier for this interface is 0x95c0f66c
 interface ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -550,12 +550,26 @@
 	///  or in textual repr: description()
 	function description() external view returns (string memory);
 
+	// /// Returns the owner (in cross format) of the token.
+	// ///
+	// /// @param tokenId Id for the token.
+	// /// @dev EVM selector for this function is: 0x2b29dace,
+	// ///  or in textual repr: crossOwnerOf(uint256)
+	// function crossOwnerOf(uint256 tokenId) external view returns (CrossAddress memory);
+
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
-	/// @dev EVM selector for this function is: 0x2b29dace,
-	///  or in textual repr: crossOwnerOf(uint256)
-	function crossOwnerOf(uint256 tokenId) external view returns (CrossAddress memory);
+	/// @dev EVM selector for this function is: 0xcaa3a4d0,
+	///  or in textual repr: ownerOfCross(uint256)
+	function ownerOfCross(uint256 tokenId) external view returns (CrossAddress memory);
+
+	/// @notice Count all RFTs assigned to an owner
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of RFTs owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) external view returns (uint256);
 
 	/// Returns the token properties.
 	///
modifiedtests/src/eth/api/UniqueRefungibleToken.soldiffbeforeafterboth
--- a/tests/src/eth/api/UniqueRefungibleToken.sol
+++ b/tests/src/eth/api/UniqueRefungibleToken.sol
@@ -23,7 +23,7 @@
 	function parentTokenId() external view returns (uint256);
 }
 
-/// @dev the ERC-165 identifier for this interface is 0x01d536fc
+/// @dev the ERC-165 identifier for this interface is 0xedd3a564
 interface ERC20UniqueExtensions is Dummy, ERC165 {
 	/// @dev Function to check the amount of tokens that an owner allowed to a spender.
 	/// @param owner crossAddress The address which owns the funds.
@@ -60,6 +60,13 @@
 	///  or in textual repr: approveCross((address,uint256),uint256)
 	function approveCross(CrossAddress memory spender, uint256 amount) external returns (bool);
 
+	/// @notice Balance of account
+	/// @param owner An cross address for whom to query the balance
+	/// @return The number of fingibles owned by `owner`, possibly zero
+	/// @dev EVM selector for this function is: 0xec069398,
+	///  or in textual repr: balanceOfCross((address,uint256))
+	function balanceOfCross(CrossAddress memory owner) external view returns (uint256);
+
 	/// @dev Function that changes total amount of the tokens.
 	///  Throws if `msg.sender` doesn't owns all of the tokens.
 	/// @param amount New total amount of the tokens.
modifiedtests/src/eth/fungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/fungible.test.ts
+++ b/tests/src/eth/fungible.test.ts
@@ -427,6 +427,33 @@
     const toBalanceAfter = await collection.getBalance({Ethereum: receiver});
     expect(toBalanceAfter - toBalanceBefore).to.be.eq(51n);
   });
+
+  itEth('Check balanceOfCross()', async ({helper}) => {
+    const collection = await helper.ft.mintCollection(alice, {});
+    const owner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const other = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const collectionEvm = await helper.ethNativeContract.collection(collectionAddress, 'ft', owner.eth);
+
+    expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('0');
+    expect(await collectionEvm.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('0');
+
+    await collection.mint(alice, 100n, {Ethereum: owner.eth});
+    expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('100');
+    expect(await collectionEvm.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('0');
+
+    await collectionEvm.methods.transferCross(other, 50n).send({from: owner.eth});
+    expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('50');
+    expect(await collectionEvm.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('50');
+
+    await collectionEvm.methods.transferCross(other, 50n).send({from: owner.eth});
+    expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('0');
+    expect(await collectionEvm.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('100');
+
+    await collectionEvm.methods.transferCross(owner, 100n).send({from: other.eth});
+    expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('100');
+    expect(await collectionEvm.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('0');
+  });
 });
 
 describe('Fungible: Fees', () => {
modifiedtests/src/eth/nonFungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -662,6 +662,38 @@
     // Cannot transfer token if it does not exist:
     await expect(collectionEvm.methods[testCase](receiver, 999999).send({from: sender})).to.be.rejected;
   }));
+
+  itEth('Check balanceOfCross()', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(minter, {});
+    const owner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const collectionEvm = await helper.ethNativeContract.collection(collectionAddress, 'nft', owner.eth);
+
+    expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('0');
+
+    for (let i = 1; i < 10; i++) {
+      await collection.mintToken(minter, {Ethereum: owner.eth});
+      expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq(i.toString());
+    }
+  });
+
+  itEth('Check ownerOfCross()', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(minter, {});
+    let owner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const collectionEvm = await helper.ethNativeContract.collection(collectionAddress, 'nft', owner.eth);
+    const {tokenId} = await collection.mintToken(minter, {Ethereum: owner.eth});
+
+    for (let i = 1n; i < 10n; i++) {
+      const ownerCross = await collectionEvm.methods.ownerOfCross(tokenId).call({from: owner.eth});
+      expect(ownerCross.eth).to.be.eq(owner.eth);
+      expect(ownerCross.sub).to.be.eq(owner.sub);
+
+      const newOwner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+      await collectionEvm.methods.transferCross(newOwner, tokenId).send({from: owner.eth});
+      owner = newOwner;
+    }
+  });
 });
 
 describe('NFT: Fees', () => {
modifiedtests/src/eth/reFungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/reFungible.test.ts
+++ b/tests/src/eth/reFungible.test.ts
@@ -584,6 +584,46 @@
     expect(event.returnValues.to).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');
     expect(event.returnValues.tokenId).to.equal(tokenId.toString());
   });
+
+  itEth('Check balanceOfCross()', async ({helper}) => {
+    const collection = await helper.rft.mintCollection(minter, {});
+    const owner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const collectionEvm = await helper.ethNativeContract.collection(collectionAddress, 'nft', owner.eth);
+
+    expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('0');
+
+    for (let i = 1n; i < 10n; i++) {
+      await collection.mintToken(minter, 100n, {Ethereum: owner.eth});
+      expect(await collectionEvm.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq(i.toString());
+    }
+  });
+
+  itEth('Check ownerOfCross()', async ({helper}) => {
+    const collection = await helper.rft.mintCollection(minter, {});
+    let owner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const collectionEvm = await helper.ethNativeContract.collection(collectionAddress, 'nft', owner.eth);
+    const {tokenId} = await collection.mintToken(minter, 100n,{Ethereum: owner.eth});
+
+    for (let i = 1n; i < 10n; i++) {
+      const ownerCross = await collectionEvm.methods.ownerOfCross(tokenId).call({from: owner.eth});
+      expect(ownerCross.eth).to.be.eq(owner.eth);
+      expect(ownerCross.sub).to.be.eq(owner.sub);
+
+      const newOwner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+      await collectionEvm.methods.transferCross(newOwner, tokenId).send({from: owner.eth});
+      owner = newOwner;
+    }
+
+    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
+    const tokenContract = await helper.ethNativeContract.rftToken(tokenAddress, owner.eth, true);
+    const newOwner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    await tokenContract.methods.transferCross(newOwner, 50).send({from: owner.eth});
+    const ownerCross = await collectionEvm.methods.ownerOfCross(tokenId).call({from: owner.eth});
+    expect(ownerCross.eth.toUpperCase()).to.be.eq('0XFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF');
+    expect(ownerCross.sub).to.be.eq('0');
+  });
 });
 
 describe('RFT: Fees', () => {
modifiedtests/src/eth/reFungibleToken.test.tsdiffbeforeafterboth
--- a/tests/src/eth/reFungibleToken.test.ts
+++ b/tests/src/eth/reFungibleToken.test.ts
@@ -466,6 +466,35 @@
       expect(await collection.getTokenBalance(tokenId, {Substrate: ownerSub.address})).to.be.equal(150n);
     }
   });
+
+  itEth('Check balanceOfCross()', async ({helper}) => {
+    const collection = await helper.rft.mintCollection(alice, {});
+    const owner = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const other = await helper.ethCrossAccount.createAccountWithBalance(donor);
+    const {tokenId} = await collection.mintToken(alice, 200n, {Ethereum: owner.eth});
+    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
+    const tokenContract = await helper.ethNativeContract.rftToken(tokenAddress, owner.eth);
+
+    expect(await tokenContract.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('200');
+    expect(await tokenContract.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('0');
+
+    await tokenContract.methods.repartition(100n).send({from: owner.eth});
+    expect(await tokenContract.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('100');
+    expect(await tokenContract.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('0');
+
+    await tokenContract.methods.transferCross(other, 50n).send({from: owner.eth});
+    expect(await tokenContract.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('50');
+    expect(await tokenContract.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('50');
+
+    await tokenContract.methods.transferCross(other, 50n).send({from: owner.eth});
+    expect(await tokenContract.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('0');
+    expect(await tokenContract.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('100');
+
+    await tokenContract.methods.repartition(1000n).send({from: other.eth});
+    await tokenContract.methods.transferCross(owner, 500n).send({from: other.eth});
+    expect(await tokenContract.methods.balanceOfCross(owner).call({from: owner.eth})).to.be.eq('500');
+    expect(await tokenContract.methods.balanceOfCross(other).call({from: owner.eth})).to.be.eq('500');
+  });
 });
 
 describe('Refungible: Fees', () => {
modifiedtests/src/eth/tokens/minting.test.tsdiffbeforeafterboth
--- a/tests/src/eth/tokens/minting.test.ts
+++ b/tests/src/eth/tokens/minting.test.ts
@@ -63,7 +63,7 @@
         const tokenId = event.returnValues.tokenId;
         expect(tokenId).to.be.equal('1');
         expect(await helper.collection.getLastTokenId(collection.collectionId)).to.eq(1);
-        expect(await contract.methods.crossOwnerOf(tokenId).call()).to.be.like([receiver, '0']);
+        expect(await contract.methods.ownerOfCross(tokenId).call()).to.be.like([receiver, '0']);
       }
     });
   });
@@ -97,7 +97,7 @@
         const tokenId = event.returnValues.tokenId;
         expect(tokenId).to.be.equal('1');
         expect(await helper.collection.getLastTokenId(collectionId)).to.eq(1);
-        expect(await collection.methods.crossOwnerOf(tokenId).call()).to.be.like([receiver, '0']);
+        expect(await collection.methods.ownerOfCross(tokenId).call()).to.be.like([receiver, '0']);
       }
     });
   });
@@ -131,7 +131,7 @@
         const tokenId = event.returnValues.tokenId;
         expect(tokenId).to.be.equal('1');
         expect(await helper.collection.getLastTokenId(collectionId)).to.eq(1);
-        expect(await collection.methods.crossOwnerOf(tokenId).call()).to.be.like([receiver, '0']);
+        expect(await collection.methods.ownerOfCross(tokenId).call()).to.be.like([receiver, '0']);
       }
     });
   });
@@ -157,7 +157,7 @@
       expect(event.returnValues.to).to.be.equal(receiver);
 
       expect(await contract.methods.tokenURI(tokenId).call()).to.be.equal('Test URI');
-      expect(await contract.methods.crossOwnerOf(tokenId).call()).to.be.like([receiver, '0']);
+      expect(await contract.methods.ownerOfCross(tokenId).call()).to.be.like([receiver, '0']);
       // TODO: this wont work right now, need release 919000 first
       // await helper.methods.setOffchainSchema(collectionIdAddress, 'https://offchain-service.local/token-info/{id}').send();
       // const tokenUri = await contract.methods.tokenURI(nextTokenId).call();