git.delta.rocks / unique-network / refs/commits / d8d026362576

--- a/pallets/common/src/erc.rs
+++ b/pallets/common/src/erc.rs
@@ -232,10 +232,7 @@
 		new_admin: uint256,
 	) -> Result<void> {
 		let caller = T::CrossAccountId::from_eth(caller);
-		let mut new_admin_arr: [u8; 32] = Default::default();
-		new_admin.to_big_endian(&mut new_admin_arr);
-		let account_id = T::AccountId::from(new_admin_arr);
-		let new_admin = T::CrossAccountId::from_sub(account_id);
+		let new_admin = convert_substrate_address_to_cross_account_id::<T>(new_admin);
 		<Pallet<T>>::toggle_admin(self, &caller, &new_admin, true).map_err(dispatch_to_evm::<T>)?;
 		Ok(())
 	}
@@ -248,10 +245,7 @@
 		admin: uint256,
 	) -> Result<void> {
 		let caller = T::CrossAccountId::from_eth(caller);
-		let mut admin_arr: [u8; 32] = Default::default();
-		admin.to_big_endian(&mut admin_arr);
-		let account_id = T::AccountId::from(admin_arr);
-		let admin = T::CrossAccountId::from_sub(account_id);
+		let admin = convert_substrate_address_to_cross_account_id::<T>(admin);
 		<Pallet<T>>::toggle_admin(self, &caller, &admin, false).map_err(dispatch_to_evm::<T>)?;
 		Ok(())
 	}
@@ -415,11 +409,25 @@
 	/// @param user account to verify
 	/// @return "true" if account is the owner or admin
 	fn verify_owner_or_admin(&self, user: address) -> Result<bool> {
-		Ok(check_is_owner_or_admin(user, self)
+		let user = T::CrossAccountId::from_eth(user);
+		Ok(self
+			.check_is_owner_or_admin(&user)
 			.map(|_| true)
 			.unwrap_or(false))
 	}
 
+	/// Check that substrate account is the owner or admin of the collection
+	///
+	/// @param user account to verify
+	/// @return "true" if account is the owner or admin
+	fn verify_owner_or_admin_substrate(&self, user: uint256) -> Result<bool> {
+		let user = convert_substrate_address_to_cross_account_id::<T>(user);
+		Ok(self
+			.check_is_owner_or_admin(&user)
+			.map(|_| true)
+			.unwrap_or(false))
+	}
+
 	/// Returns collection type
 	///
 	/// @return `Fungible` or `NFT` or `ReFungible`
@@ -432,26 +440,37 @@
 		Ok(mode.into())
 	}
 
-	/// Changes collection owner
+	/// Changes collection owner to another account
 	///
 	/// @dev Owner can be changed only by current owner
-	/// @param newOwner new owner
+	/// @param newOwner new owner account
 	fn change_owner(&mut self, caller: caller, new_owner: address) -> Result<void> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let new_owner = T::CrossAccountId::from_eth(new_owner);
 		self.change_owner_internal(caller, new_owner)
+			.map_err(dispatch_to_evm::<T>)
+	}
+
+	/// Changes collection owner to another substrate account
+	///
+	/// @dev Owner can be changed only by current owner
+	/// @param newOwner new owner substrate account
+	fn change_owner_substrate(&mut self, caller: caller, new_owner: uint256) -> Result<void> {
+		let caller = T::CrossAccountId::from_eth(caller);
+		let new_owner = convert_substrate_address_to_cross_account_id::<T>(new_owner);
+		self.change_owner_internal(caller, new_owner)
+			.map_err(dispatch_to_evm::<T>)
 	}
+}
 
-impl<T: Config> CollectionHandle<T>
+fn convert_substrate_address_to_cross_account_id<T: Config>(address: uint256) -> T::CrossAccountId
 where
 	T::AccountId: From<[u8; 32]>,
 {
-
-	fn change_owner_internal(&mut self, caller: T::CrossAccountId, new_owner: T::CrossAccountId) -> Result<void> {
-		self.check_is_owner(&caller).map_err(dispatch_to_evm::<T>)?;
-		self.collection.owner = new_owner.as_sub().clone();
-		save(self)
-	}
+	let mut address_arr: [u8; 32] = Default::default();
+	address.to_big_endian(&mut address_arr);
+	let account_id = T::AccountId::from(address_arr);
+	T::CrossAccountId::from_sub(account_id)
 }
 
 fn check_is_owner_or_admin<T: Config>(
@@ -471,7 +490,7 @@
 	collection
 		.check_is_internal()
 		.map_err(dispatch_to_evm::<T>)?;
-	<crate::CollectionById<T>>::insert(collection.id, collection.collection.clone());
+	collection.save().map_err(dispatch_to_evm::<T>)?;
 	Ok(())
 }
 

--- a/pallets/common/src/lib.rs
+++ b/pallets/common/src/lib.rs
@@ -203,8 +203,8 @@
 	}
 
 	/// Save collection to storage.
-	pub fn save(self) -> DispatchResult {
-		<CollectionById<T>>::insert(self.id, self.collection);
+	pub fn save(&self) -> DispatchResult {
+		<CollectionById<T>>::insert(self.id, self.collection.clone());
 		Ok(())
 	}
 
@@ -302,6 +302,17 @@
 		);
 		Ok(())
 	}
+
+	/// Changes collection owner to another account
+	fn change_owner_internal(
+		&mut self,
+		caller: T::CrossAccountId,
+		new_owner: T::CrossAccountId,
+	) -> DispatchResult {
+		self.check_is_owner(&caller)?;
+		self.collection.owner = new_owner.as_sub().clone();
+		self.save()
+	}
 }
 
 #[frame_support::pallet]

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31	);31	);
32}32}
33
34// Selector: 07f76b0c
35contract Collection is Dummy, ERC165 {
36	// Set collection property.
37	//
38	// @param key Property key.
39	// @param value Propery value.
40	//
41	// Selector: setCollectionProperty(string,bytes) 2f073f66
42	function setCollectionProperty(string memory key, bytes memory value)
43		public
44	{
45		require(false, stub_error);
46		key;
47		value;
48		dummy = 0;
49	}
50
51	// Delete collection property.
52	//
53	// @param key Property key.
54	//
55	// Selector: deleteCollectionProperty(string) 7b7debce
56	function deleteCollectionProperty(string memory key) public {
57		require(false, stub_error);
58		key;
59		dummy = 0;
60	}
61
62	// Get collection property.
63	//
64	// @dev Throws error if key not found.
65	//
66	// @param key Property key.
67	// @return bytes The property corresponding to the key.
68	//
69	// Selector: collectionProperty(string) cf24fd6d
70	function collectionProperty(string memory key)
71		public
72		view
73		returns (bytes memory)
74	{
75		require(false, stub_error);
76		key;
77		dummy;
78		return hex"";
79	}
80
81	// Set the sponsor of the collection.
82	//
83	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
84	//
85	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
86	//
87	// Selector: setCollectionSponsor(address) 7623402e
88	function setCollectionSponsor(address sponsor) public {
89		require(false, stub_error);
90		sponsor;
91		dummy = 0;
92	}
93
94	// Collection sponsorship confirmation.
95	//
96	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
97	//
98	// Selector: confirmCollectionSponsorship() 3c50e97a
99	function confirmCollectionSponsorship() public {
100		require(false, stub_error);
101		dummy = 0;
102	}
103
104	// Set limits for the collection.
105	// @dev Throws error if limit not found.
106	// @param limit Name of the limit. Valid names:
107	// 	"accountTokenOwnershipLimit",
108	// 	"sponsoredDataSize",
109	// 	"sponsoredDataRateLimit",
110	// 	"tokenLimit",
111	// 	"sponsorTransferTimeout",
112	// 	"sponsorApproveTimeout"
113	// @param value Value of the limit.
114	//
115	// Selector: setCollectionLimit(string,uint32) 6a3841db
116	function setCollectionLimit(string memory limit, uint32 value) public {
117		require(false, stub_error);
118		limit;
119		value;
120		dummy = 0;
121	}
122
123	// Set limits for the collection.
124	// @dev Throws error if limit not found.
125	// @param limit Name of the limit. Valid names:
126	// 	"ownerCanTransfer",
127	// 	"ownerCanDestroy",
128	// 	"transfersEnabled"
129	// @param value Value of the limit.
130	//
131	// Selector: setCollectionLimit(string,bool) 993b7fba
132	function setCollectionLimit(string memory limit, bool value) public {
133		require(false, stub_error);
134		limit;
135		value;
136		dummy = 0;
137	}
138
139	// Get contract address.
140	//
141	// Selector: contractAddress() f6b4dfb4
142	function contractAddress() public view returns (address) {
143		require(false, stub_error);
144		dummy;
145		return 0x0000000000000000000000000000000000000000;
146	}
147
148	// Add collection admin by substrate address.
149	// @param new_admin Substrate administrator address.
150	//
151	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
152	function addCollectionAdminSubstrate(uint256 newAdmin) public {
153		require(false, stub_error);
154		newAdmin;
155		dummy = 0;
156	}
157
158	// Remove collection admin by substrate address.
159	// @param admin Substrate administrator address.
160	//
161	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
162	function removeCollectionAdminSubstrate(uint256 admin) public {
163		require(false, stub_error);
164		admin;
165		dummy = 0;
166	}
167
168	// Add collection admin.
169	// @param new_admin Address of the added administrator.
170	//
171	// Selector: addCollectionAdmin(address) 92e462c7
172	function addCollectionAdmin(address newAdmin) public {
173		require(false, stub_error);
174		newAdmin;
175		dummy = 0;
176	}
177
178	// Remove collection admin.
179	//
180	// @param new_admin Address of the removed administrator.
181	//
182	// Selector: removeCollectionAdmin(address) fafd7b42
183	function removeCollectionAdmin(address admin) public {
184		require(false, stub_error);
185		admin;
186		dummy = 0;
187	}
188
189	// Toggle accessibility of collection nesting.
190	//
191	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
192	//
193	// Selector: setCollectionNesting(bool) 112d4586
194	function setCollectionNesting(bool enable) public {
195		require(false, stub_error);
196		enable;
197		dummy = 0;
198	}
199
200	// Toggle accessibility of collection nesting.
201	//
202	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
203	// @param collections Addresses of collections that will be available for nesting.
204	//
205	// Selector: setCollectionNesting(bool,address[]) 64872396
206	function setCollectionNesting(bool enable, address[] memory collections)
207		public
208	{
209		require(false, stub_error);
210		enable;
211		collections;
212		dummy = 0;
213	}
214
215	// Set the collection access method.
216	// @param mode Access mode
217	// 	0 for Normal
218	// 	1 for AllowList
219	//
220	// Selector: setCollectionAccess(uint8) 41835d4c
221	function setCollectionAccess(uint8 mode) public {
222		require(false, stub_error);
223		mode;
224		dummy = 0;
225	}
226
227	// Add the user to the allowed list.
228	//
229	// @param user Address of a trusted user.
230	//
231	// Selector: addToCollectionAllowList(address) 67844fe6
232	function addToCollectionAllowList(address user) public {
233		require(false, stub_error);
234		user;
235		dummy = 0;
236	}
237
238	// Remove the user from the allowed list.
239	//
240	// @param user Address of a removed user.
241	//
242	// Selector: removeFromCollectionAllowList(address) 85c51acb
243	function removeFromCollectionAllowList(address user) public {
244		require(false, stub_error);
245		user;
246		dummy = 0;
247	}
248
249	// Switch permission for minting.
250	//
251	// @param mode Enable if "true".
252	//
253	// Selector: setCollectionMintMode(bool) 00018e84
254	function setCollectionMintMode(bool mode) public {
255		require(false, stub_error);
256		mode;
257		dummy = 0;
258	}
259
260	// Check that account is the owner or admin of the collection
261	//
262	// @param user account to verify
263	// @return "true" if account is the owner or admin
264	//
265	// Selector: verifyOwnerOrAdmin(address) c2282493
266	function verifyOwnerOrAdmin(address user) public view returns (bool) {
267		require(false, stub_error);
268		user;
269		dummy;
270		return false;
271	}
272
273	// Check that substrate account is the owner or admin of the collection
274	//
275	// @param user account to verify
276	// @return "true" if account is the owner or admin
277	//
278	// Selector: verifyOwnerOrAdminSubstrate(uint256) fe818e40
279	function verifyOwnerOrAdminSubstrate(uint256 user)
280		public
281		view
282		returns (bool)
283	{
284		require(false, stub_error);
285		user;
286		dummy;
287		return false;
288	}
289
290	// Returns collection type
291	//
292	// @return `Fungible` or `NFT` or `ReFungible`
293	//
294	// Selector: uniqueCollectionType() d34b55b8
295	function uniqueCollectionType() public returns (string memory) {
296		require(false, stub_error);
297		dummy = 0;
298		return "";
299	}
300
301	// Changes collection owner to another account
302	//
303	// @dev Owner can be changed only by current owner
304	// @param newOwner new owner account
305	//
306	// Selector: changeOwner(address) a6f9dae1
307	function changeOwner(address newOwner) public {
308		require(false, stub_error);
309		newOwner;
310		dummy = 0;
311	}
312
313	// Changes collection owner to another substrate account
314	//
315	// @dev Owner can be changed only by current owner
316	// @param newOwner new owner substrate account
317	//
318	// Selector: changeOwnerSubstrate(uint256) 337e2c60
319	function changeOwnerSubstrate(uint256 newOwner) public {
320		require(false, stub_error);
321		newOwner;
322		dummy = 0;
323	}
324}
33325
34// Selector: 79cc6790326// Selector: 79cc6790
35contract ERC20UniqueExtensions is Dummy, ERC165 {327contract ERC20UniqueExtensions is Dummy, ERC165 {
127	}419	}
128}420}
129
130// Selector: ca08c92c
131contract Collection is Dummy, ERC165 {
132	// Set collection property.
133	//
134	// @param key Property key.
135	// @param value Propery value.
136	//
137	// Selector: setCollectionProperty(string,bytes) 2f073f66
138	function setCollectionProperty(string memory key, bytes memory value)
139		public
140	{
141		require(false, stub_error);
142		key;
143		value;
144		dummy = 0;
145	}
146
147	// Delete collection property.
148	//
149	// @param key Property key.
150	//
151	// Selector: deleteCollectionProperty(string) 7b7debce
152	function deleteCollectionProperty(string memory key) public {
153		require(false, stub_error);
154		key;
155		dummy = 0;
156	}
157
158	// Get collection property.
159	//
160	// @dev Throws error if key not found.
161	//
162	// @param key Property key.
163	// @return bytes The property corresponding to the key.
164	//
165	// Selector: collectionProperty(string) cf24fd6d
166	function collectionProperty(string memory key)
167		public
168		view
169		returns (bytes memory)
170	{
171		require(false, stub_error);
172		key;
173		dummy;
174		return hex"";
175	}
176
177	// Set the sponsor of the collection.
178	//
179	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
180	//
181	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
182	//
183	// Selector: setCollectionSponsor(address) 7623402e
184	function setCollectionSponsor(address sponsor) public {
185		require(false, stub_error);
186		sponsor;
187		dummy = 0;
188	}
189
190	// Collection sponsorship confirmation.
191	//
192	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
193	//
194	// Selector: confirmCollectionSponsorship() 3c50e97a
195	function confirmCollectionSponsorship() public {
196		require(false, stub_error);
197		dummy = 0;
198	}
199
200	// Set limits for the collection.
201	// @dev Throws error if limit not found.
202	// @param limit Name of the limit. Valid names:
203	// 	"accountTokenOwnershipLimit",
204	// 	"sponsoredDataSize",
205	// 	"sponsoredDataRateLimit",
206	// 	"tokenLimit",
207	// 	"sponsorTransferTimeout",
208	// 	"sponsorApproveTimeout"
209	// @param value Value of the limit.
210	//
211	// Selector: setCollectionLimit(string,uint32) 6a3841db
212	function setCollectionLimit(string memory limit, uint32 value) public {
213		require(false, stub_error);
214		limit;
215		value;
216		dummy = 0;
217	}
218
219	// Set limits for the collection.
220	// @dev Throws error if limit not found.
221	// @param limit Name of the limit. Valid names:
222	// 	"ownerCanTransfer",
223	// 	"ownerCanDestroy",
224	// 	"transfersEnabled"
225	// @param value Value of the limit.
226	//
227	// Selector: setCollectionLimit(string,bool) 993b7fba
228	function setCollectionLimit(string memory limit, bool value) public {
229		require(false, stub_error);
230		limit;
231		value;
232		dummy = 0;
233	}
234
235	// Get contract address.
236	//
237	// Selector: contractAddress() f6b4dfb4
238	function contractAddress() public view returns (address) {
239		require(false, stub_error);
240		dummy;
241		return 0x0000000000000000000000000000000000000000;
242	}
243
244	// Add collection admin by substrate address.
245	// @param new_admin Substrate administrator address.
246	//
247	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
248	function addCollectionAdminSubstrate(uint256 newAdmin) public {
249		require(false, stub_error);
250		newAdmin;
251		dummy = 0;
252	}
253
254	// Remove collection admin by substrate address.
255	// @param admin Substrate administrator address.
256	//
257	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
258	function removeCollectionAdminSubstrate(uint256 admin) public {
259		require(false, stub_error);
260		admin;
261		dummy = 0;
262	}
263
264	// Add collection admin.
265	// @param new_admin Address of the added administrator.
266	//
267	// Selector: addCollectionAdmin(address) 92e462c7
268	function addCollectionAdmin(address newAdmin) public {
269		require(false, stub_error);
270		newAdmin;
271		dummy = 0;
272	}
273
274	// Remove collection admin.
275	//
276	// @param new_admin Address of the removed administrator.
277	//
278	// Selector: removeCollectionAdmin(address) fafd7b42
279	function removeCollectionAdmin(address admin) public {
280		require(false, stub_error);
281		admin;
282		dummy = 0;
283	}
284
285	// Toggle accessibility of collection nesting.
286	//
287	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
288	//
289	// Selector: setCollectionNesting(bool) 112d4586
290	function setCollectionNesting(bool enable) public {
291		require(false, stub_error);
292		enable;
293		dummy = 0;
294	}
295
296	// Toggle accessibility of collection nesting.
297	//
298	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
299	// @param collections Addresses of collections that will be available for nesting.
300	//
301	// Selector: setCollectionNesting(bool,address[]) 64872396
302	function setCollectionNesting(bool enable, address[] memory collections)
303		public
304	{
305		require(false, stub_error);
306		enable;
307		collections;
308		dummy = 0;
309	}
310
311	// Set the collection access method.
312	// @param mode Access mode
313	// 	0 for Normal
314	// 	1 for AllowList
315	//
316	// Selector: setCollectionAccess(uint8) 41835d4c
317	function setCollectionAccess(uint8 mode) public {
318		require(false, stub_error);
319		mode;
320		dummy = 0;
321	}
322
323	// Add the user to the allowed list.
324	//
325	// @param user Address of a trusted user.
326	//
327	// Selector: addToCollectionAllowList(address) 67844fe6
328	function addToCollectionAllowList(address user) public {
329		require(false, stub_error);
330		user;
331		dummy = 0;
332	}
333
334	// Remove the user from the allowed list.
335	//
336	// @param user Address of a removed user.
337	//
338	// Selector: removeFromCollectionAllowList(address) 85c51acb
339	function removeFromCollectionAllowList(address user) public {
340		require(false, stub_error);
341		user;
342		dummy = 0;
343	}
344
345	// Switch permission for minting.
346	//
347	// @param mode Enable if "true".
348	//
349	// Selector: setCollectionMintMode(bool) 00018e84
350	function setCollectionMintMode(bool mode) public {
351		require(false, stub_error);
352		mode;
353		dummy = 0;
354	}
355
356	// Check that account is the owner or admin of the collection
357	//
358	// @param user account to verify
359	// @return "true" if account is the owner or admin
360	//
361	// Selector: verifyOwnerOrAdmin(address) c2282493
362	function verifyOwnerOrAdmin(address user) public view returns (bool) {
363		require(false, stub_error);
364		user;
365		dummy;
366		return false;
367	}
368
369	// Returns collection type
370	//
371	// @return `Fungible` or `NFT` or `ReFungible`
372	//
373	// Selector: uniqueCollectionType() d34b55b8
374	function uniqueCollectionType() public returns (string memory) {
375		require(false, stub_error);
376		dummy = 0;
377		return "";
378	}
379
380	// Changes collection owner
381	//
382	// @dev Owner can be changed only by current owner
383	// @param newOwner new owner
384	//
385	// Selector: changeOwner(address) a6f9dae1
386	function changeOwner(address newOwner) public {
387		require(false, stub_error);
388		newOwner;
389		dummy = 0;
390	}
391}
392421
393contract UniqueFungible is422contract UniqueFungible is
394	Dummy,423	Dummy,

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--- a/pallets/nonfungible/src/stubs/UniqueNFT.sol
+++ b/pallets/nonfungible/src/stubs/UniqueNFT.sol
@@ -51,6 +51,298 @@
 	event MintingFinished();
 }
 
+// Selector: 07f76b0c
+contract Collection is Dummy, ERC165 {
+	// Set collection property.
+	//
+	// @param key Property key.
+	// @param value Propery value.
+	//
+	// Selector: setCollectionProperty(string,bytes) 2f073f66
+	function setCollectionProperty(string memory key, bytes memory value)
+		public
+	{
+		require(false, stub_error);
+		key;
+		value;
+		dummy = 0;
+	}
+
+	// Delete collection property.
+	//
+	// @param key Property key.
+	//
+	// Selector: deleteCollectionProperty(string) 7b7debce
+	function deleteCollectionProperty(string memory key) public {
+		require(false, stub_error);
+		key;
+		dummy = 0;
+	}
+
+	// Get collection property.
+	//
+	// @dev Throws error if key not found.
+	//
+	// @param key Property key.
+	// @return bytes The property corresponding to the key.
+	//
+	// Selector: collectionProperty(string) cf24fd6d
+	function collectionProperty(string memory key)
+		public
+		view
+		returns (bytes memory)
+	{
+		require(false, stub_error);
+		key;
+		dummy;
+		return hex"";
+	}
+
+	// Set the sponsor of the collection.
+	//
+	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
+	//
+	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
+	//
+	// Selector: setCollectionSponsor(address) 7623402e
+	function setCollectionSponsor(address sponsor) public {
+		require(false, stub_error);
+		sponsor;
+		dummy = 0;
+	}
+
+	// Collection sponsorship confirmation.
+	//
+	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
+	//
+	// Selector: confirmCollectionSponsorship() 3c50e97a
+	function confirmCollectionSponsorship() public {
+		require(false, stub_error);
+		dummy = 0;
+	}
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"accountTokenOwnershipLimit",
+	// 	"sponsoredDataSize",
+	// 	"sponsoredDataRateLimit",
+	// 	"tokenLimit",
+	// 	"sponsorTransferTimeout",
+	// 	"sponsorApproveTimeout"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,uint32) 6a3841db
+	function setCollectionLimit(string memory limit, uint32 value) public {
+		require(false, stub_error);
+		limit;
+		value;
+		dummy = 0;
+	}
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"ownerCanTransfer",
+	// 	"ownerCanDestroy",
+	// 	"transfersEnabled"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,bool) 993b7fba
+	function setCollectionLimit(string memory limit, bool value) public {
+		require(false, stub_error);
+		limit;
+		value;
+		dummy = 0;
+	}
+
+	// Get contract address.
+	//
+	// Selector: contractAddress() f6b4dfb4
+	function contractAddress() public view returns (address) {
+		require(false, stub_error);
+		dummy;
+		return 0x0000000000000000000000000000000000000000;
+	}
+
+	// Add collection admin by substrate address.
+	// @param new_admin Substrate administrator address.
+	//
+	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
+	function addCollectionAdminSubstrate(uint256 newAdmin) public {
+		require(false, stub_error);
+		newAdmin;
+		dummy = 0;
+	}
+
+	// Remove collection admin by substrate address.
+	// @param admin Substrate administrator address.
+	//
+	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
+	function removeCollectionAdminSubstrate(uint256 admin) public {
+		require(false, stub_error);
+		admin;
+		dummy = 0;
+	}
+
+	// Add collection admin.
+	// @param new_admin Address of the added administrator.
+	//
+	// Selector: addCollectionAdmin(address) 92e462c7
+	function addCollectionAdmin(address newAdmin) public {
+		require(false, stub_error);
+		newAdmin;
+		dummy = 0;
+	}
+
+	// Remove collection admin.
+	//
+	// @param new_admin Address of the removed administrator.
+	//
+	// Selector: removeCollectionAdmin(address) fafd7b42
+	function removeCollectionAdmin(address admin) public {
+		require(false, stub_error);
+		admin;
+		dummy = 0;
+	}
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
+	//
+	// Selector: setCollectionNesting(bool) 112d4586
+	function setCollectionNesting(bool enable) public {
+		require(false, stub_error);
+		enable;
+		dummy = 0;
+	}
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
+	// @param collections Addresses of collections that will be available for nesting.
+	//
+	// Selector: setCollectionNesting(bool,address[]) 64872396
+	function setCollectionNesting(bool enable, address[] memory collections)
+		public
+	{
+		require(false, stub_error);
+		enable;
+		collections;
+		dummy = 0;
+	}
+
+	// Set the collection access method.
+	// @param mode Access mode
+	// 	0 for Normal
+	// 	1 for AllowList
+	//
+	// Selector: setCollectionAccess(uint8) 41835d4c
+	function setCollectionAccess(uint8 mode) public {
+		require(false, stub_error);
+		mode;
+		dummy = 0;
+	}
+
+	// Add the user to the allowed list.
+	//
+	// @param user Address of a trusted user.
+	//
+	// Selector: addToCollectionAllowList(address) 67844fe6
+	function addToCollectionAllowList(address user) public {
+		require(false, stub_error);
+		user;
+		dummy = 0;
+	}
+
+	// Remove the user from the allowed list.
+	//
+	// @param user Address of a removed user.
+	//
+	// Selector: removeFromCollectionAllowList(address) 85c51acb
+	function removeFromCollectionAllowList(address user) public {
+		require(false, stub_error);
+		user;
+		dummy = 0;
+	}
+
+	// Switch permission for minting.
+	//
+	// @param mode Enable if "true".
+	//
+	// Selector: setCollectionMintMode(bool) 00018e84
+	function setCollectionMintMode(bool mode) public {
+		require(false, stub_error);
+		mode;
+		dummy = 0;
+	}
+
+	// Check that account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdmin(address) c2282493
+	function verifyOwnerOrAdmin(address user) public view returns (bool) {
+		require(false, stub_error);
+		user;
+		dummy;
+		return false;
+	}
+
+	// Check that substrate account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdminSubstrate(uint256) fe818e40
+	function verifyOwnerOrAdminSubstrate(uint256 user)
+		public
+		view
+		returns (bool)
+	{
+		require(false, stub_error);
+		user;
+		dummy;
+		return false;
+	}
+
+	// Returns collection type
+	//
+	// @return `Fungible` or `NFT` or `ReFungible`
+	//
+	// Selector: uniqueCollectionType() d34b55b8
+	function uniqueCollectionType() public returns (string memory) {
+		require(false, stub_error);
+		dummy = 0;
+		return "";
+	}
+
+	// Changes collection owner to another account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner account
+	//
+	// Selector: changeOwner(address) a6f9dae1
+	function changeOwner(address newOwner) public {
+		require(false, stub_error);
+		newOwner;
+		dummy = 0;
+	}
+
+	// Changes collection owner to another substrate account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner substrate account
+	//
+	// Selector: changeOwnerSubstrate(uint256) 337e2c60
+	function changeOwnerSubstrate(uint256 newOwner) public {
+		require(false, stub_error);
+		newOwner;
+		dummy = 0;
+	}
+}
+
 // Selector: 41369377
 contract TokenProperties is Dummy, ERC165 {
 	// @notice Set permissions for token property.
@@ -412,269 +704,6 @@
 		require(false, stub_error);
 		dummy;
 		return 0;
-	}
-}
-
-// Selector: ca08c92c
-contract Collection is Dummy, ERC165 {
-	// Set collection property.
-	//
-	// @param key Property key.
-	// @param value Propery value.
-	//
-	// Selector: setCollectionProperty(string,bytes) 2f073f66
-	function setCollectionProperty(string memory key, bytes memory value)
-		public
-	{
-		require(false, stub_error);
-		key;
-		value;
-		dummy = 0;
-	}
-
-	// Delete collection property.
-	//
-	// @param key Property key.
-	//
-	// Selector: deleteCollectionProperty(string) 7b7debce
-	function deleteCollectionProperty(string memory key) public {
-		require(false, stub_error);
-		key;
-		dummy = 0;
-	}
-
-	// Get collection property.
-	//
-	// @dev Throws error if key not found.
-	//
-	// @param key Property key.
-	// @return bytes The property corresponding to the key.
-	//
-	// Selector: collectionProperty(string) cf24fd6d
-	function collectionProperty(string memory key)
-		public
-		view
-		returns (bytes memory)
-	{
-		require(false, stub_error);
-		key;
-		dummy;
-		return hex"";
-	}
-
-	// Set the sponsor of the collection.
-	//
-	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
-	//
-	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
-	//
-	// Selector: setCollectionSponsor(address) 7623402e
-	function setCollectionSponsor(address sponsor) public {
-		require(false, stub_error);
-		sponsor;
-		dummy = 0;
-	}
-
-	// Collection sponsorship confirmation.
-	//
-	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
-	//
-	// Selector: confirmCollectionSponsorship() 3c50e97a
-	function confirmCollectionSponsorship() public {
-		require(false, stub_error);
-		dummy = 0;
-	}
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"accountTokenOwnershipLimit",
-	// 	"sponsoredDataSize",
-	// 	"sponsoredDataRateLimit",
-	// 	"tokenLimit",
-	// 	"sponsorTransferTimeout",
-	// 	"sponsorApproveTimeout"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,uint32) 6a3841db
-	function setCollectionLimit(string memory limit, uint32 value) public {
-		require(false, stub_error);
-		limit;
-		value;
-		dummy = 0;
-	}
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"ownerCanTransfer",
-	// 	"ownerCanDestroy",
-	// 	"transfersEnabled"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,bool) 993b7fba
-	function setCollectionLimit(string memory limit, bool value) public {
-		require(false, stub_error);
-		limit;
-		value;
-		dummy = 0;
-	}
-
-	// Get contract address.
-	//
-	// Selector: contractAddress() f6b4dfb4
-	function contractAddress() public view returns (address) {
-		require(false, stub_error);
-		dummy;
-		return 0x0000000000000000000000000000000000000000;
-	}
-
-	// Add collection admin by substrate address.
-	// @param new_admin Substrate administrator address.
-	//
-	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
-	function addCollectionAdminSubstrate(uint256 newAdmin) public {
-		require(false, stub_error);
-		newAdmin;
-		dummy = 0;
-	}
-
-	// Remove collection admin by substrate address.
-	// @param admin Substrate administrator address.
-	//
-	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
-	function removeCollectionAdminSubstrate(uint256 admin) public {
-		require(false, stub_error);
-		admin;
-		dummy = 0;
-	}
-
-	// Add collection admin.
-	// @param new_admin Address of the added administrator.
-	//
-	// Selector: addCollectionAdmin(address) 92e462c7
-	function addCollectionAdmin(address newAdmin) public {
-		require(false, stub_error);
-		newAdmin;
-		dummy = 0;
-	}
-
-	// Remove collection admin.
-	//
-	// @param new_admin Address of the removed administrator.
-	//
-	// Selector: removeCollectionAdmin(address) fafd7b42
-	function removeCollectionAdmin(address admin) public {
-		require(false, stub_error);
-		admin;
-		dummy = 0;
-	}
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
-	//
-	// Selector: setCollectionNesting(bool) 112d4586
-	function setCollectionNesting(bool enable) public {
-		require(false, stub_error);
-		enable;
-		dummy = 0;
-	}
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
-	// @param collections Addresses of collections that will be available for nesting.
-	//
-	// Selector: setCollectionNesting(bool,address[]) 64872396
-	function setCollectionNesting(bool enable, address[] memory collections)
-		public
-	{
-		require(false, stub_error);
-		enable;
-		collections;
-		dummy = 0;
-	}
-
-	// Set the collection access method.
-	// @param mode Access mode
-	// 	0 for Normal
-	// 	1 for AllowList
-	//
-	// Selector: setCollectionAccess(uint8) 41835d4c
-	function setCollectionAccess(uint8 mode) public {
-		require(false, stub_error);
-		mode;
-		dummy = 0;
-	}
-
-	// Add the user to the allowed list.
-	//
-	// @param user Address of a trusted user.
-	//
-	// Selector: addToCollectionAllowList(address) 67844fe6
-	function addToCollectionAllowList(address user) public {
-		require(false, stub_error);
-		user;
-		dummy = 0;
-	}
-
-	// Remove the user from the allowed list.
-	//
-	// @param user Address of a removed user.
-	//
-	// Selector: removeFromCollectionAllowList(address) 85c51acb
-	function removeFromCollectionAllowList(address user) public {
-		require(false, stub_error);
-		user;
-		dummy = 0;
-	}
-
-	// Switch permission for minting.
-	//
-	// @param mode Enable if "true".
-	//
-	// Selector: setCollectionMintMode(bool) 00018e84
-	function setCollectionMintMode(bool mode) public {
-		require(false, stub_error);
-		mode;
-		dummy = 0;
-	}
-
-	// Check that account is the owner or admin of the collection
-	//
-	// @param user account to verify
-	// @return "true" if account is the owner or admin
-	//
-	// Selector: verifyOwnerOrAdmin(address) c2282493
-	function verifyOwnerOrAdmin(address user) public view returns (bool) {
-		require(false, stub_error);
-		user;
-		dummy;
-		return false;
-	}
-
-	// Returns collection type
-	//
-	// @return `Fungible` or `NFT` or `ReFungible`
-	//
-	// Selector: uniqueCollectionType() d34b55b8
-	function uniqueCollectionType() public returns (string memory) {
-		require(false, stub_error);
-		dummy = 0;
-		return "";
-	}
-
-	// Changes collection owner
-	//
-	// @dev Owner can be changed only by current owner
-	// @param newOwner new owner
-	//
-	// Selector: changeOwner(address) a6f9dae1
-	function changeOwner(address newOwner) public {
-		require(false, stub_error);
-		newOwner;
-		dummy = 0;
 	}
 }
 

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--- a/pallets/refungible/src/stubs/UniqueRefungible.sol
+++ b/pallets/refungible/src/stubs/UniqueRefungible.sol
@@ -51,6 +51,298 @@
 	event MintingFinished();
 }
 
+// Selector: 07f76b0c
+contract Collection is Dummy, ERC165 {
+	// Set collection property.
+	//
+	// @param key Property key.
+	// @param value Propery value.
+	//
+	// Selector: setCollectionProperty(string,bytes) 2f073f66
+	function setCollectionProperty(string memory key, bytes memory value)
+		public
+	{
+		require(false, stub_error);
+		key;
+		value;
+		dummy = 0;
+	}
+
+	// Delete collection property.
+	//
+	// @param key Property key.
+	//
+	// Selector: deleteCollectionProperty(string) 7b7debce
+	function deleteCollectionProperty(string memory key) public {
+		require(false, stub_error);
+		key;
+		dummy = 0;
+	}
+
+	// Get collection property.
+	//
+	// @dev Throws error if key not found.
+	//
+	// @param key Property key.
+	// @return bytes The property corresponding to the key.
+	//
+	// Selector: collectionProperty(string) cf24fd6d
+	function collectionProperty(string memory key)
+		public
+		view
+		returns (bytes memory)
+	{
+		require(false, stub_error);
+		key;
+		dummy;
+		return hex"";
+	}
+
+	// Set the sponsor of the collection.
+	//
+	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
+	//
+	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
+	//
+	// Selector: setCollectionSponsor(address) 7623402e
+	function setCollectionSponsor(address sponsor) public {
+		require(false, stub_error);
+		sponsor;
+		dummy = 0;
+	}
+
+	// Collection sponsorship confirmation.
+	//
+	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
+	//
+	// Selector: confirmCollectionSponsorship() 3c50e97a
+	function confirmCollectionSponsorship() public {
+		require(false, stub_error);
+		dummy = 0;
+	}
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"accountTokenOwnershipLimit",
+	// 	"sponsoredDataSize",
+	// 	"sponsoredDataRateLimit",
+	// 	"tokenLimit",
+	// 	"sponsorTransferTimeout",
+	// 	"sponsorApproveTimeout"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,uint32) 6a3841db
+	function setCollectionLimit(string memory limit, uint32 value) public {
+		require(false, stub_error);
+		limit;
+		value;
+		dummy = 0;
+	}
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"ownerCanTransfer",
+	// 	"ownerCanDestroy",
+	// 	"transfersEnabled"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,bool) 993b7fba
+	function setCollectionLimit(string memory limit, bool value) public {
+		require(false, stub_error);
+		limit;
+		value;
+		dummy = 0;
+	}
+
+	// Get contract address.
+	//
+	// Selector: contractAddress() f6b4dfb4
+	function contractAddress() public view returns (address) {
+		require(false, stub_error);
+		dummy;
+		return 0x0000000000000000000000000000000000000000;
+	}
+
+	// Add collection admin by substrate address.
+	// @param new_admin Substrate administrator address.
+	//
+	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
+	function addCollectionAdminSubstrate(uint256 newAdmin) public {
+		require(false, stub_error);
+		newAdmin;
+		dummy = 0;
+	}
+
+	// Remove collection admin by substrate address.
+	// @param admin Substrate administrator address.
+	//
+	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
+	function removeCollectionAdminSubstrate(uint256 admin) public {
+		require(false, stub_error);
+		admin;
+		dummy = 0;
+	}
+
+	// Add collection admin.
+	// @param new_admin Address of the added administrator.
+	//
+	// Selector: addCollectionAdmin(address) 92e462c7
+	function addCollectionAdmin(address newAdmin) public {
+		require(false, stub_error);
+		newAdmin;
+		dummy = 0;
+	}
+
+	// Remove collection admin.
+	//
+	// @param new_admin Address of the removed administrator.
+	//
+	// Selector: removeCollectionAdmin(address) fafd7b42
+	function removeCollectionAdmin(address admin) public {
+		require(false, stub_error);
+		admin;
+		dummy = 0;
+	}
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
+	//
+	// Selector: setCollectionNesting(bool) 112d4586
+	function setCollectionNesting(bool enable) public {
+		require(false, stub_error);
+		enable;
+		dummy = 0;
+	}
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
+	// @param collections Addresses of collections that will be available for nesting.
+	//
+	// Selector: setCollectionNesting(bool,address[]) 64872396
+	function setCollectionNesting(bool enable, address[] memory collections)
+		public
+	{
+		require(false, stub_error);
+		enable;
+		collections;
+		dummy = 0;
+	}
+
+	// Set the collection access method.
+	// @param mode Access mode
+	// 	0 for Normal
+	// 	1 for AllowList
+	//
+	// Selector: setCollectionAccess(uint8) 41835d4c
+	function setCollectionAccess(uint8 mode) public {
+		require(false, stub_error);
+		mode;
+		dummy = 0;
+	}
+
+	// Add the user to the allowed list.
+	//
+	// @param user Address of a trusted user.
+	//
+	// Selector: addToCollectionAllowList(address) 67844fe6
+	function addToCollectionAllowList(address user) public {
+		require(false, stub_error);
+		user;
+		dummy = 0;
+	}
+
+	// Remove the user from the allowed list.
+	//
+	// @param user Address of a removed user.
+	//
+	// Selector: removeFromCollectionAllowList(address) 85c51acb
+	function removeFromCollectionAllowList(address user) public {
+		require(false, stub_error);
+		user;
+		dummy = 0;
+	}
+
+	// Switch permission for minting.
+	//
+	// @param mode Enable if "true".
+	//
+	// Selector: setCollectionMintMode(bool) 00018e84
+	function setCollectionMintMode(bool mode) public {
+		require(false, stub_error);
+		mode;
+		dummy = 0;
+	}
+
+	// Check that account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdmin(address) c2282493
+	function verifyOwnerOrAdmin(address user) public view returns (bool) {
+		require(false, stub_error);
+		user;
+		dummy;
+		return false;
+	}
+
+	// Check that substrate account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdminSubstrate(uint256) fe818e40
+	function verifyOwnerOrAdminSubstrate(uint256 user)
+		public
+		view
+		returns (bool)
+	{
+		require(false, stub_error);
+		user;
+		dummy;
+		return false;
+	}
+
+	// Returns collection type
+	//
+	// @return `Fungible` or `NFT` or `ReFungible`
+	//
+	// Selector: uniqueCollectionType() d34b55b8
+	function uniqueCollectionType() public returns (string memory) {
+		require(false, stub_error);
+		dummy = 0;
+		return "";
+	}
+
+	// Changes collection owner to another account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner account
+	//
+	// Selector: changeOwner(address) a6f9dae1
+	function changeOwner(address newOwner) public {
+		require(false, stub_error);
+		newOwner;
+		dummy = 0;
+	}
+
+	// Changes collection owner to another substrate account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner substrate account
+	//
+	// Selector: changeOwnerSubstrate(uint256) 337e2c60
+	function changeOwnerSubstrate(uint256 newOwner) public {
+		require(false, stub_error);
+		newOwner;
+		dummy = 0;
+	}
+}
+
 // Selector: 41369377
 contract TokenProperties is Dummy, ERC165 {
 	// @notice Set permissions for token property.
@@ -503,269 +795,6 @@
 		token;
 		dummy;
 		return 0x0000000000000000000000000000000000000000;
-	}
-}
-
-// Selector: ca08c92c
-contract Collection is Dummy, ERC165 {
-	// Set collection property.
-	//
-	// @param key Property key.
-	// @param value Propery value.
-	//
-	// Selector: setCollectionProperty(string,bytes) 2f073f66
-	function setCollectionProperty(string memory key, bytes memory value)
-		public
-	{
-		require(false, stub_error);
-		key;
-		value;
-		dummy = 0;
-	}
-
-	// Delete collection property.
-	//
-	// @param key Property key.
-	//
-	// Selector: deleteCollectionProperty(string) 7b7debce
-	function deleteCollectionProperty(string memory key) public {
-		require(false, stub_error);
-		key;
-		dummy = 0;
-	}
-
-	// Get collection property.
-	//
-	// @dev Throws error if key not found.
-	//
-	// @param key Property key.
-	// @return bytes The property corresponding to the key.
-	//
-	// Selector: collectionProperty(string) cf24fd6d
-	function collectionProperty(string memory key)
-		public
-		view
-		returns (bytes memory)
-	{
-		require(false, stub_error);
-		key;
-		dummy;
-		return hex"";
-	}
-
-	// Set the sponsor of the collection.
-	//
-	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
-	//
-	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
-	//
-	// Selector: setCollectionSponsor(address) 7623402e
-	function setCollectionSponsor(address sponsor) public {
-		require(false, stub_error);
-		sponsor;
-		dummy = 0;
-	}
-
-	// Collection sponsorship confirmation.
-	//
-	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
-	//
-	// Selector: confirmCollectionSponsorship() 3c50e97a
-	function confirmCollectionSponsorship() public {
-		require(false, stub_error);
-		dummy = 0;
-	}
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"accountTokenOwnershipLimit",
-	// 	"sponsoredDataSize",
-	// 	"sponsoredDataRateLimit",
-	// 	"tokenLimit",
-	// 	"sponsorTransferTimeout",
-	// 	"sponsorApproveTimeout"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,uint32) 6a3841db
-	function setCollectionLimit(string memory limit, uint32 value) public {
-		require(false, stub_error);
-		limit;
-		value;
-		dummy = 0;
-	}
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"ownerCanTransfer",
-	// 	"ownerCanDestroy",
-	// 	"transfersEnabled"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,bool) 993b7fba
-	function setCollectionLimit(string memory limit, bool value) public {
-		require(false, stub_error);
-		limit;
-		value;
-		dummy = 0;
-	}
-
-	// Get contract address.
-	//
-	// Selector: contractAddress() f6b4dfb4
-	function contractAddress() public view returns (address) {
-		require(false, stub_error);
-		dummy;
-		return 0x0000000000000000000000000000000000000000;
-	}
-
-	// Add collection admin by substrate address.
-	// @param new_admin Substrate administrator address.
-	//
-	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
-	function addCollectionAdminSubstrate(uint256 newAdmin) public {
-		require(false, stub_error);
-		newAdmin;
-		dummy = 0;
-	}
-
-	// Remove collection admin by substrate address.
-	// @param admin Substrate administrator address.
-	//
-	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
-	function removeCollectionAdminSubstrate(uint256 admin) public {
-		require(false, stub_error);
-		admin;
-		dummy = 0;
-	}
-
-	// Add collection admin.
-	// @param new_admin Address of the added administrator.
-	//
-	// Selector: addCollectionAdmin(address) 92e462c7
-	function addCollectionAdmin(address newAdmin) public {
-		require(false, stub_error);
-		newAdmin;
-		dummy = 0;
-	}
-
-	// Remove collection admin.
-	//
-	// @param new_admin Address of the removed administrator.
-	//
-	// Selector: removeCollectionAdmin(address) fafd7b42
-	function removeCollectionAdmin(address admin) public {
-		require(false, stub_error);
-		admin;
-		dummy = 0;
-	}
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
-	//
-	// Selector: setCollectionNesting(bool) 112d4586
-	function setCollectionNesting(bool enable) public {
-		require(false, stub_error);
-		enable;
-		dummy = 0;
-	}
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
-	// @param collections Addresses of collections that will be available for nesting.
-	//
-	// Selector: setCollectionNesting(bool,address[]) 64872396
-	function setCollectionNesting(bool enable, address[] memory collections)
-		public
-	{
-		require(false, stub_error);
-		enable;
-		collections;
-		dummy = 0;
-	}
-
-	// Set the collection access method.
-	// @param mode Access mode
-	// 	0 for Normal
-	// 	1 for AllowList
-	//
-	// Selector: setCollectionAccess(uint8) 41835d4c
-	function setCollectionAccess(uint8 mode) public {
-		require(false, stub_error);
-		mode;
-		dummy = 0;
-	}
-
-	// Add the user to the allowed list.
-	//
-	// @param user Address of a trusted user.
-	//
-	// Selector: addToCollectionAllowList(address) 67844fe6
-	function addToCollectionAllowList(address user) public {
-		require(false, stub_error);
-		user;
-		dummy = 0;
-	}
-
-	// Remove the user from the allowed list.
-	//
-	// @param user Address of a removed user.
-	//
-	// Selector: removeFromCollectionAllowList(address) 85c51acb
-	function removeFromCollectionAllowList(address user) public {
-		require(false, stub_error);
-		user;
-		dummy = 0;
-	}
-
-	// Switch permission for minting.
-	//
-	// @param mode Enable if "true".
-	//
-	// Selector: setCollectionMintMode(bool) 00018e84
-	function setCollectionMintMode(bool mode) public {
-		require(false, stub_error);
-		mode;
-		dummy = 0;
-	}
-
-	// Check that account is the owner or admin of the collection
-	//
-	// @param user account to verify
-	// @return "true" if account is the owner or admin
-	//
-	// Selector: verifyOwnerOrAdmin(address) c2282493
-	function verifyOwnerOrAdmin(address user) public view returns (bool) {
-		require(false, stub_error);
-		user;
-		dummy;
-		return false;
-	}
-
-	// Returns collection type
-	//
-	// @return `Fungible` or `NFT` or `ReFungible`
-	//
-	// Selector: uniqueCollectionType() d34b55b8
-	function uniqueCollectionType() public returns (string memory) {
-		require(false, stub_error);
-		dummy = 0;
-		return "";
-	}
-
-	// Changes collection owner
-	//
-	// @dev Owner can be changed only by current owner
-	// @param newOwner new owner
-	//
-	// Selector: changeOwner(address) a6f9dae1
-	function changeOwner(address newOwner) public {
-		require(false, stub_error);
-		newOwner;
-		dummy = 0;
 	}
 }
 

--- a/tests/src/eth/api/UniqueFungible.sol
+++ b/tests/src/eth/api/UniqueFungible.sol
@@ -22,50 +22,7 @@
 	);
 }
 
-// Selector: 79cc6790
-interface ERC20UniqueExtensions is Dummy, ERC165 {
-	// Selector: burnFrom(address,uint256) 79cc6790
-	function burnFrom(address from, uint256 amount) external returns (bool);
-}
-
-// Selector: 942e8b22
-interface ERC20 is Dummy, ERC165, ERC20Events {
-	// Selector: name() 06fdde03
-	function name() external view returns (string memory);
-
-	// Selector: symbol() 95d89b41
-	function symbol() external view returns (string memory);
-
-	// Selector: totalSupply() 18160ddd
-	function totalSupply() external view returns (uint256);
-
-	// Selector: decimals() 313ce567
-	function decimals() external view returns (uint8);
-
-	// Selector: balanceOf(address) 70a08231
-	function balanceOf(address owner) external view returns (uint256);
-
-	// Selector: transfer(address,uint256) a9059cbb
-	function transfer(address to, uint256 amount) external returns (bool);
-
-	// Selector: transferFrom(address,address,uint256) 23b872dd
-	function transferFrom(
-		address from,
-		address to,
-		uint256 amount
-	) external returns (bool);
-
-	// Selector: approve(address,uint256) 095ea7b3
-	function approve(address spender, uint256 amount) external returns (bool);
-
-	// Selector: allowance(address,address) dd62ed3e
-	function allowance(address owner, address spender)
-		external
-		view
-		returns (uint256);
-}
-
-// Selector: ca08c92c
+// Selector: 07f76b0c
 interface Collection is Dummy, ERC165 {
 	// Set collection property.
 	//
@@ -220,6 +177,17 @@
 	// Selector: verifyOwnerOrAdmin(address) c2282493
 	function verifyOwnerOrAdmin(address user) external view returns (bool);
 
+	// Check that substrate account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdminSubstrate(uint256) fe818e40
+	function verifyOwnerOrAdminSubstrate(uint256 user)
+		external
+		view
+		returns (bool);
+
 	// Returns collection type
 	//
 	// @return `Fungible` or `NFT` or `ReFungible`
@@ -227,13 +195,64 @@
 	// Selector: uniqueCollectionType() d34b55b8
 	function uniqueCollectionType() external returns (string memory);
 
-	// Changes collection owner
+	// Changes collection owner to another account
 	//
 	// @dev Owner can be changed only by current owner
-	// @param newOwner new owner
+	// @param newOwner new owner account
 	//
 	// Selector: changeOwner(address) a6f9dae1
 	function changeOwner(address newOwner) external;
+
+	// Changes collection owner to another substrate account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner substrate account
+	//
+	// Selector: changeOwnerSubstrate(uint256) 337e2c60
+	function changeOwnerSubstrate(uint256 newOwner) external;
+}
+
+// Selector: 79cc6790
+interface ERC20UniqueExtensions is Dummy, ERC165 {
+	// Selector: burnFrom(address,uint256) 79cc6790
+	function burnFrom(address from, uint256 amount) external returns (bool);
+}
+
+// Selector: 942e8b22
+interface ERC20 is Dummy, ERC165, ERC20Events {
+	// Selector: name() 06fdde03
+	function name() external view returns (string memory);
+
+	// Selector: symbol() 95d89b41
+	function symbol() external view returns (string memory);
+
+	// Selector: totalSupply() 18160ddd
+	function totalSupply() external view returns (uint256);
+
+	// Selector: decimals() 313ce567
+	function decimals() external view returns (uint8);
+
+	// Selector: balanceOf(address) 70a08231
+	function balanceOf(address owner) external view returns (uint256);
+
+	// Selector: transfer(address,uint256) a9059cbb
+	function transfer(address to, uint256 amount) external returns (bool);
+
+	// Selector: transferFrom(address,address,uint256) 23b872dd
+	function transferFrom(
+		address from,
+		address to,
+		uint256 amount
+	) external returns (bool);
+
+	// Selector: approve(address,uint256) 095ea7b3
+	function approve(address spender, uint256 amount) external returns (bool);
+
+	// Selector: allowance(address,address) dd62ed3e
+	function allowance(address owner, address spender)
+		external
+		view
+		returns (uint256);
 }
 
 interface UniqueFungible is

--- a/tests/src/eth/api/UniqueNFT.sol
+++ b/tests/src/eth/api/UniqueNFT.sol
@@ -42,6 +42,196 @@
 	event MintingFinished();
 }
 
+// Selector: 07f76b0c
+interface Collection is Dummy, ERC165 {
+	// Set collection property.
+	//
+	// @param key Property key.
+	// @param value Propery value.
+	//
+	// Selector: setCollectionProperty(string,bytes) 2f073f66
+	function setCollectionProperty(string memory key, bytes memory value)
+		external;
+
+	// Delete collection property.
+	//
+	// @param key Property key.
+	//
+	// Selector: deleteCollectionProperty(string) 7b7debce
+	function deleteCollectionProperty(string memory key) external;
+
+	// Get collection property.
+	//
+	// @dev Throws error if key not found.
+	//
+	// @param key Property key.
+	// @return bytes The property corresponding to the key.
+	//
+	// Selector: collectionProperty(string) cf24fd6d
+	function collectionProperty(string memory key)
+		external
+		view
+		returns (bytes memory);
+
+	// Set the sponsor of the collection.
+	//
+	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
+	//
+	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
+	//
+	// Selector: setCollectionSponsor(address) 7623402e
+	function setCollectionSponsor(address sponsor) external;
+
+	// Collection sponsorship confirmation.
+	//
+	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
+	//
+	// Selector: confirmCollectionSponsorship() 3c50e97a
+	function confirmCollectionSponsorship() external;
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"accountTokenOwnershipLimit",
+	// 	"sponsoredDataSize",
+	// 	"sponsoredDataRateLimit",
+	// 	"tokenLimit",
+	// 	"sponsorTransferTimeout",
+	// 	"sponsorApproveTimeout"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,uint32) 6a3841db
+	function setCollectionLimit(string memory limit, uint32 value) external;
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"ownerCanTransfer",
+	// 	"ownerCanDestroy",
+	// 	"transfersEnabled"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,bool) 993b7fba
+	function setCollectionLimit(string memory limit, bool value) external;
+
+	// Get contract address.
+	//
+	// Selector: contractAddress() f6b4dfb4
+	function contractAddress() external view returns (address);
+
+	// Add collection admin by substrate address.
+	// @param new_admin Substrate administrator address.
+	//
+	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
+	function addCollectionAdminSubstrate(uint256 newAdmin) external;
+
+	// Remove collection admin by substrate address.
+	// @param admin Substrate administrator address.
+	//
+	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
+	function removeCollectionAdminSubstrate(uint256 admin) external;
+
+	// Add collection admin.
+	// @param new_admin Address of the added administrator.
+	//
+	// Selector: addCollectionAdmin(address) 92e462c7
+	function addCollectionAdmin(address newAdmin) external;
+
+	// Remove collection admin.
+	//
+	// @param new_admin Address of the removed administrator.
+	//
+	// Selector: removeCollectionAdmin(address) fafd7b42
+	function removeCollectionAdmin(address admin) external;
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
+	//
+	// Selector: setCollectionNesting(bool) 112d4586
+	function setCollectionNesting(bool enable) external;
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
+	// @param collections Addresses of collections that will be available for nesting.
+	//
+	// Selector: setCollectionNesting(bool,address[]) 64872396
+	function setCollectionNesting(bool enable, address[] memory collections)
+		external;
+
+	// Set the collection access method.
+	// @param mode Access mode
+	// 	0 for Normal
+	// 	1 for AllowList
+	//
+	// Selector: setCollectionAccess(uint8) 41835d4c
+	function setCollectionAccess(uint8 mode) external;
+
+	// Add the user to the allowed list.
+	//
+	// @param user Address of a trusted user.
+	//
+	// Selector: addToCollectionAllowList(address) 67844fe6
+	function addToCollectionAllowList(address user) external;
+
+	// Remove the user from the allowed list.
+	//
+	// @param user Address of a removed user.
+	//
+	// Selector: removeFromCollectionAllowList(address) 85c51acb
+	function removeFromCollectionAllowList(address user) external;
+
+	// Switch permission for minting.
+	//
+	// @param mode Enable if "true".
+	//
+	// Selector: setCollectionMintMode(bool) 00018e84
+	function setCollectionMintMode(bool mode) external;
+
+	// Check that account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdmin(address) c2282493
+	function verifyOwnerOrAdmin(address user) external view returns (bool);
+
+	// Check that substrate account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdminSubstrate(uint256) fe818e40
+	function verifyOwnerOrAdminSubstrate(uint256 user)
+		external
+		view
+		returns (bool);
+
+	// Returns collection type
+	//
+	// @return `Fungible` or `NFT` or `ReFungible`
+	//
+	// Selector: uniqueCollectionType() d34b55b8
+	function uniqueCollectionType() external returns (string memory);
+
+	// Changes collection owner to another account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner account
+	//
+	// Selector: changeOwner(address) a6f9dae1
+	function changeOwner(address newOwner) external;
+
+	// Changes collection owner to another substrate account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner substrate account
+	//
+	// Selector: changeOwnerSubstrate(uint256) 337e2c60
+	function changeOwnerSubstrate(uint256 newOwner) external;
+}
+
 // Selector: 41369377
 interface TokenProperties is Dummy, ERC165 {
 	// @notice Set permissions for token property.
@@ -274,177 +464,6 @@
 	//
 	// Selector: totalSupply() 18160ddd
 	function totalSupply() external view returns (uint256);
-}
-
-// Selector: ca08c92c
-interface Collection is Dummy, ERC165 {
-	// Set collection property.
-	//
-	// @param key Property key.
-	// @param value Propery value.
-	//
-	// Selector: setCollectionProperty(string,bytes) 2f073f66
-	function setCollectionProperty(string memory key, bytes memory value)
-		external;
-
-	// Delete collection property.
-	//
-	// @param key Property key.
-	//
-	// Selector: deleteCollectionProperty(string) 7b7debce
-	function deleteCollectionProperty(string memory key) external;
-
-	// Get collection property.
-	//
-	// @dev Throws error if key not found.
-	//
-	// @param key Property key.
-	// @return bytes The property corresponding to the key.
-	//
-	// Selector: collectionProperty(string) cf24fd6d
-	function collectionProperty(string memory key)
-		external
-		view
-		returns (bytes memory);
-
-	// Set the sponsor of the collection.
-	//
-	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
-	//
-	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
-	//
-	// Selector: setCollectionSponsor(address) 7623402e
-	function setCollectionSponsor(address sponsor) external;
-
-	// Collection sponsorship confirmation.
-	//
-	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
-	//
-	// Selector: confirmCollectionSponsorship() 3c50e97a
-	function confirmCollectionSponsorship() external;
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"accountTokenOwnershipLimit",
-	// 	"sponsoredDataSize",
-	// 	"sponsoredDataRateLimit",
-	// 	"tokenLimit",
-	// 	"sponsorTransferTimeout",
-	// 	"sponsorApproveTimeout"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,uint32) 6a3841db
-	function setCollectionLimit(string memory limit, uint32 value) external;
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"ownerCanTransfer",
-	// 	"ownerCanDestroy",
-	// 	"transfersEnabled"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,bool) 993b7fba
-	function setCollectionLimit(string memory limit, bool value) external;
-
-	// Get contract address.
-	//
-	// Selector: contractAddress() f6b4dfb4
-	function contractAddress() external view returns (address);
-
-	// Add collection admin by substrate address.
-	// @param new_admin Substrate administrator address.
-	//
-	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
-	function addCollectionAdminSubstrate(uint256 newAdmin) external;
-
-	// Remove collection admin by substrate address.
-	// @param admin Substrate administrator address.
-	//
-	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
-	function removeCollectionAdminSubstrate(uint256 admin) external;
-
-	// Add collection admin.
-	// @param new_admin Address of the added administrator.
-	//
-	// Selector: addCollectionAdmin(address) 92e462c7
-	function addCollectionAdmin(address newAdmin) external;
-
-	// Remove collection admin.
-	//
-	// @param new_admin Address of the removed administrator.
-	//
-	// Selector: removeCollectionAdmin(address) fafd7b42
-	function removeCollectionAdmin(address admin) external;
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
-	//
-	// Selector: setCollectionNesting(bool) 112d4586
-	function setCollectionNesting(bool enable) external;
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
-	// @param collections Addresses of collections that will be available for nesting.
-	//
-	// Selector: setCollectionNesting(bool,address[]) 64872396
-	function setCollectionNesting(bool enable, address[] memory collections)
-		external;
-
-	// Set the collection access method.
-	// @param mode Access mode
-	// 	0 for Normal
-	// 	1 for AllowList
-	//
-	// Selector: setCollectionAccess(uint8) 41835d4c
-	function setCollectionAccess(uint8 mode) external;
-
-	// Add the user to the allowed list.
-	//
-	// @param user Address of a trusted user.
-	//
-	// Selector: addToCollectionAllowList(address) 67844fe6
-	function addToCollectionAllowList(address user) external;
-
-	// Remove the user from the allowed list.
-	//
-	// @param user Address of a removed user.
-	//
-	// Selector: removeFromCollectionAllowList(address) 85c51acb
-	function removeFromCollectionAllowList(address user) external;
-
-	// Switch permission for minting.
-	//
-	// @param mode Enable if "true".
-	//
-	// Selector: setCollectionMintMode(bool) 00018e84
-	function setCollectionMintMode(bool mode) external;
-
-	// Check that account is the owner or admin of the collection
-	//
-	// @param user account to verify
-	// @return "true" if account is the owner or admin
-	//
-	// Selector: verifyOwnerOrAdmin(address) c2282493
-	function verifyOwnerOrAdmin(address user) external view returns (bool);
-
-	// Returns collection type
-	//
-	// @return `Fungible` or `NFT` or `ReFungible`
-	//
-	// Selector: uniqueCollectionType() d34b55b8
-	function uniqueCollectionType() external returns (string memory);
-
-	// Changes collection owner
-	//
-	// @dev Owner can be changed only by current owner
-	// @param newOwner new owner
-	//
-	// Selector: changeOwner(address) a6f9dae1
-	function changeOwner(address newOwner) external;
 }
 
 // Selector: d74d154f

--- a/tests/src/eth/api/UniqueRefungible.sol
+++ b/tests/src/eth/api/UniqueRefungible.sol
@@ -42,6 +42,196 @@
 	event MintingFinished();
 }
 
+// Selector: 07f76b0c
+interface Collection is Dummy, ERC165 {
+	// Set collection property.
+	//
+	// @param key Property key.
+	// @param value Propery value.
+	//
+	// Selector: setCollectionProperty(string,bytes) 2f073f66
+	function setCollectionProperty(string memory key, bytes memory value)
+		external;
+
+	// Delete collection property.
+	//
+	// @param key Property key.
+	//
+	// Selector: deleteCollectionProperty(string) 7b7debce
+	function deleteCollectionProperty(string memory key) external;
+
+	// Get collection property.
+	//
+	// @dev Throws error if key not found.
+	//
+	// @param key Property key.
+	// @return bytes The property corresponding to the key.
+	//
+	// Selector: collectionProperty(string) cf24fd6d
+	function collectionProperty(string memory key)
+		external
+		view
+		returns (bytes memory);
+
+	// Set the sponsor of the collection.
+	//
+	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
+	//
+	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
+	//
+	// Selector: setCollectionSponsor(address) 7623402e
+	function setCollectionSponsor(address sponsor) external;
+
+	// Collection sponsorship confirmation.
+	//
+	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
+	//
+	// Selector: confirmCollectionSponsorship() 3c50e97a
+	function confirmCollectionSponsorship() external;
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"accountTokenOwnershipLimit",
+	// 	"sponsoredDataSize",
+	// 	"sponsoredDataRateLimit",
+	// 	"tokenLimit",
+	// 	"sponsorTransferTimeout",
+	// 	"sponsorApproveTimeout"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,uint32) 6a3841db
+	function setCollectionLimit(string memory limit, uint32 value) external;
+
+	// Set limits for the collection.
+	// @dev Throws error if limit not found.
+	// @param limit Name of the limit. Valid names:
+	// 	"ownerCanTransfer",
+	// 	"ownerCanDestroy",
+	// 	"transfersEnabled"
+	// @param value Value of the limit.
+	//
+	// Selector: setCollectionLimit(string,bool) 993b7fba
+	function setCollectionLimit(string memory limit, bool value) external;
+
+	// Get contract address.
+	//
+	// Selector: contractAddress() f6b4dfb4
+	function contractAddress() external view returns (address);
+
+	// Add collection admin by substrate address.
+	// @param new_admin Substrate administrator address.
+	//
+	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
+	function addCollectionAdminSubstrate(uint256 newAdmin) external;
+
+	// Remove collection admin by substrate address.
+	// @param admin Substrate administrator address.
+	//
+	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
+	function removeCollectionAdminSubstrate(uint256 admin) external;
+
+	// Add collection admin.
+	// @param new_admin Address of the added administrator.
+	//
+	// Selector: addCollectionAdmin(address) 92e462c7
+	function addCollectionAdmin(address newAdmin) external;
+
+	// Remove collection admin.
+	//
+	// @param new_admin Address of the removed administrator.
+	//
+	// Selector: removeCollectionAdmin(address) fafd7b42
+	function removeCollectionAdmin(address admin) external;
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
+	//
+	// Selector: setCollectionNesting(bool) 112d4586
+	function setCollectionNesting(bool enable) external;
+
+	// Toggle accessibility of collection nesting.
+	//
+	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
+	// @param collections Addresses of collections that will be available for nesting.
+	//
+	// Selector: setCollectionNesting(bool,address[]) 64872396
+	function setCollectionNesting(bool enable, address[] memory collections)
+		external;
+
+	// Set the collection access method.
+	// @param mode Access mode
+	// 	0 for Normal
+	// 	1 for AllowList
+	//
+	// Selector: setCollectionAccess(uint8) 41835d4c
+	function setCollectionAccess(uint8 mode) external;
+
+	// Add the user to the allowed list.
+	//
+	// @param user Address of a trusted user.
+	//
+	// Selector: addToCollectionAllowList(address) 67844fe6
+	function addToCollectionAllowList(address user) external;
+
+	// Remove the user from the allowed list.
+	//
+	// @param user Address of a removed user.
+	//
+	// Selector: removeFromCollectionAllowList(address) 85c51acb
+	function removeFromCollectionAllowList(address user) external;
+
+	// Switch permission for minting.
+	//
+	// @param mode Enable if "true".
+	//
+	// Selector: setCollectionMintMode(bool) 00018e84
+	function setCollectionMintMode(bool mode) external;
+
+	// Check that account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdmin(address) c2282493
+	function verifyOwnerOrAdmin(address user) external view returns (bool);
+
+	// Check that substrate account is the owner or admin of the collection
+	//
+	// @param user account to verify
+	// @return "true" if account is the owner or admin
+	//
+	// Selector: verifyOwnerOrAdminSubstrate(uint256) fe818e40
+	function verifyOwnerOrAdminSubstrate(uint256 user)
+		external
+		view
+		returns (bool);
+
+	// Returns collection type
+	//
+	// @return `Fungible` or `NFT` or `ReFungible`
+	//
+	// Selector: uniqueCollectionType() d34b55b8
+	function uniqueCollectionType() external returns (string memory);
+
+	// Changes collection owner to another account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner account
+	//
+	// Selector: changeOwner(address) a6f9dae1
+	function changeOwner(address newOwner) external;
+
+	// Changes collection owner to another substrate account
+	//
+	// @dev Owner can be changed only by current owner
+	// @param newOwner new owner substrate account
+	//
+	// Selector: changeOwnerSubstrate(uint256) 337e2c60
+	function changeOwnerSubstrate(uint256 newOwner) external;
+}
+
 // Selector: 41369377
 interface TokenProperties is Dummy, ERC165 {
 	// @notice Set permissions for token property.
@@ -335,177 +525,6 @@
 		external
 		view
 		returns (address);
-}
-
-// Selector: ca08c92c
-interface Collection is Dummy, ERC165 {
-	// Set collection property.
-	//
-	// @param key Property key.
-	// @param value Propery value.
-	//
-	// Selector: setCollectionProperty(string,bytes) 2f073f66
-	function setCollectionProperty(string memory key, bytes memory value)
-		external;
-
-	// Delete collection property.
-	//
-	// @param key Property key.
-	//
-	// Selector: deleteCollectionProperty(string) 7b7debce
-	function deleteCollectionProperty(string memory key) external;
-
-	// Get collection property.
-	//
-	// @dev Throws error if key not found.
-	//
-	// @param key Property key.
-	// @return bytes The property corresponding to the key.
-	//
-	// Selector: collectionProperty(string) cf24fd6d
-	function collectionProperty(string memory key)
-		external
-		view
-		returns (bytes memory);
-
-	// Set the sponsor of the collection.
-	//
-	// @dev In order for sponsorship to work, it must be confirmed on behalf of the sponsor.
-	//
-	// @param sponsor Address of the sponsor from whose account funds will be debited for operations with the contract.
-	//
-	// Selector: setCollectionSponsor(address) 7623402e
-	function setCollectionSponsor(address sponsor) external;
-
-	// Collection sponsorship confirmation.
-	//
-	// @dev After setting the sponsor for the collection, it must be confirmed with this function.
-	//
-	// Selector: confirmCollectionSponsorship() 3c50e97a
-	function confirmCollectionSponsorship() external;
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"accountTokenOwnershipLimit",
-	// 	"sponsoredDataSize",
-	// 	"sponsoredDataRateLimit",
-	// 	"tokenLimit",
-	// 	"sponsorTransferTimeout",
-	// 	"sponsorApproveTimeout"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,uint32) 6a3841db
-	function setCollectionLimit(string memory limit, uint32 value) external;
-
-	// Set limits for the collection.
-	// @dev Throws error if limit not found.
-	// @param limit Name of the limit. Valid names:
-	// 	"ownerCanTransfer",
-	// 	"ownerCanDestroy",
-	// 	"transfersEnabled"
-	// @param value Value of the limit.
-	//
-	// Selector: setCollectionLimit(string,bool) 993b7fba
-	function setCollectionLimit(string memory limit, bool value) external;
-
-	// Get contract address.
-	//
-	// Selector: contractAddress() f6b4dfb4
-	function contractAddress() external view returns (address);
-
-	// Add collection admin by substrate address.
-	// @param new_admin Substrate administrator address.
-	//
-	// Selector: addCollectionAdminSubstrate(uint256) 5730062b
-	function addCollectionAdminSubstrate(uint256 newAdmin) external;
-
-	// Remove collection admin by substrate address.
-	// @param admin Substrate administrator address.
-	//
-	// Selector: removeCollectionAdminSubstrate(uint256) 4048fcf9
-	function removeCollectionAdminSubstrate(uint256 admin) external;
-
-	// Add collection admin.
-	// @param new_admin Address of the added administrator.
-	//
-	// Selector: addCollectionAdmin(address) 92e462c7
-	function addCollectionAdmin(address newAdmin) external;
-
-	// Remove collection admin.
-	//
-	// @param new_admin Address of the removed administrator.
-	//
-	// Selector: removeCollectionAdmin(address) fafd7b42
-	function removeCollectionAdmin(address admin) external;
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: 'Owner' else to nesting: 'Disabled'
-	//
-	// Selector: setCollectionNesting(bool) 112d4586
-	function setCollectionNesting(bool enable) external;
-
-	// Toggle accessibility of collection nesting.
-	//
-	// @param enable If "true" degenerates to nesting: {OwnerRestricted: [1, 2, 3]} else to nesting: 'Disabled'
-	// @param collections Addresses of collections that will be available for nesting.
-	//
-	// Selector: setCollectionNesting(bool,address[]) 64872396
-	function setCollectionNesting(bool enable, address[] memory collections)
-		external;
-
-	// Set the collection access method.
-	// @param mode Access mode
-	// 	0 for Normal
-	// 	1 for AllowList
-	//
-	// Selector: setCollectionAccess(uint8) 41835d4c
-	function setCollectionAccess(uint8 mode) external;
-
-	// Add the user to the allowed list.
-	//
-	// @param user Address of a trusted user.
-	//
-	// Selector: addToCollectionAllowList(address) 67844fe6
-	function addToCollectionAllowList(address user) external;
-
-	// Remove the user from the allowed list.
-	//
-	// @param user Address of a removed user.
-	//
-	// Selector: removeFromCollectionAllowList(address) 85c51acb
-	function removeFromCollectionAllowList(address user) external;
-
-	// Switch permission for minting.
-	//
-	// @param mode Enable if "true".
-	//
-	// Selector: setCollectionMintMode(bool) 00018e84
-	function setCollectionMintMode(bool mode) external;
-
-	// Check that account is the owner or admin of the collection
-	//
-	// @param user account to verify
-	// @return "true" if account is the owner or admin
-	//
-	// Selector: verifyOwnerOrAdmin(address) c2282493
-	function verifyOwnerOrAdmin(address user) external view returns (bool);
-
-	// Returns collection type
-	//
-	// @return `Fungible` or `NFT` or `ReFungible`
-	//
-	// Selector: uniqueCollectionType() d34b55b8
-	function uniqueCollectionType() external returns (string memory);
-
-	// Changes collection owner
-	//
-	// @dev Owner can be changed only by current owner
-	// @param newOwner new owner
-	//
-	// Selector: changeOwner(address) a6f9dae1
-	function changeOwner(address newOwner) external;
 }
 
 interface UniqueRefungible is

--- a/tests/src/eth/collectionAdmin.test.ts
+++ b/tests/src/eth/collectionAdmin.test.ts
@@ -24,6 +24,7 @@
   getCollectionAddressFromResult, 
   itWeb3,
   recordEthFee,
+  subToEth,
 } from './util/helpers';
 
 describe('Add collection admins', () => {
@@ -358,4 +359,54 @@
     await expect(collectionEvm.methods.changeOwner(newOwner).send({from: newOwner})).to.be.rejected;
     expect(await collectionEvm.methods.verifyOwnerOrAdmin(newOwner).call()).to.be.false;
   });
+});
+
+describe('Change substrate owner tests', () => {
+  itWeb3('Change owner', async ({api, web3, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const newOwner = privateKeyWrapper('//Alice');
+    const collectionHelper = evmCollectionHelpers(web3, owner);
+    const result = await collectionHelper.methods
+      .createNonfungibleCollection('A', 'B', 'C')
+      .send();
+    const {collectionIdAddress} = await getCollectionAddressFromResult(api, result);
+    const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
+  
+    expect(await collectionEvm.methods.verifyOwnerOrAdmin(owner).call()).to.be.true;
+    expect(await collectionEvm.methods.verifyOwnerOrAdminSubstrate(newOwner.addressRaw).call()).to.be.false;
+    await collectionEvm.methods.changeOwnerSubstrate(newOwner.addressRaw).send();
+  
+    expect(await collectionEvm.methods.verifyOwnerOrAdmin(owner).call()).to.be.false;
+    expect(await collectionEvm.methods.verifyOwnerOrAdminSubstrate(newOwner.addressRaw).call()).to.be.true;
+  });
+
+  itWeb3('change owner call fee', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const newOwner = privateKeyWrapper('//Alice');
+    const collectionHelper = evmCollectionHelpers(web3, owner);
+    const result = await collectionHelper.methods
+      .createNonfungibleCollection('A', 'B', 'C')
+      .send();
+    const {collectionIdAddress} = await getCollectionAddressFromResult(api, result);
+    const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
+
+    const cost = await recordEthFee(api, owner, () => collectionEvm.methods.changeOwnerSubstrate(newOwner.addressRaw).send());
+    expect(cost < BigInt(0.2 * Number(UNIQUE)));
+    expect(cost > 0);
+  });
+
+  itWeb3('(!negative tests!) call changeOwner by not owner', async ({api, web3, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const otherReceiver = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const newOwner = privateKeyWrapper('//Alice');
+    const collectionHelper = evmCollectionHelpers(web3, owner);
+    const result = await collectionHelper.methods
+      .createNonfungibleCollection('A', 'B', 'C')
+      .send();
+    const {collectionIdAddress} = await getCollectionAddressFromResult(api, result);
+    const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
+  
+    await expect(collectionEvm.methods.changeOwnerSubstrate(newOwner.addressRaw).send({from: otherReceiver})).to.be.rejected;
+    expect(await collectionEvm.methods.verifyOwnerOrAdminSubstrate(newOwner.addressRaw).call()).to.be.false;
+  });
 });
\ No newline at end of file

--- a/tests/src/eth/fungibleAbi.json
+++ b/tests/src/eth/fungibleAbi.json
@@ -125,6 +125,15 @@
     "type": "function"
   },
   {
+    "inputs": [
+      { "internalType": "uint256", "name": "newOwner", "type": "uint256" }
+    ],
+    "name": "changeOwnerSubstrate",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [{ "internalType": "string", "name": "key", "type": "string" }],
     "name": "collectionProperty",
     "outputs": [{ "internalType": "bytes", "name": "", "type": "bytes" }],
@@ -326,5 +335,14 @@
     "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
     "stateMutability": "view",
     "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "user", "type": "uint256" }
+    ],
+    "name": "verifyOwnerOrAdminSubstrate",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
   }
 ]

--- a/tests/src/eth/nonFungibleAbi.json
+++ b/tests/src/eth/nonFungibleAbi.json
@@ -155,6 +155,15 @@
     "type": "function"
   },
   {
+    "inputs": [
+      { "internalType": "uint256", "name": "newOwner", "type": "uint256" }
+    ],
+    "name": "changeOwnerSubstrate",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [{ "internalType": "string", "name": "key", "type": "string" }],
     "name": "collectionProperty",
     "outputs": [{ "internalType": "bytes", "name": "", "type": "bytes" }],
@@ -551,5 +560,14 @@
     "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
     "stateMutability": "view",
     "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "user", "type": "uint256" }
+    ],
+    "name": "verifyOwnerOrAdminSubstrate",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
   }
 ]

--- a/tests/src/eth/reFungibleAbi.json
+++ b/tests/src/eth/reFungibleAbi.json
@@ -155,6 +155,15 @@
     "type": "function"
   },
   {
+    "inputs": [
+      { "internalType": "uint256", "name": "newOwner", "type": "uint256" }
+    ],
+    "name": "changeOwnerSubstrate",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [{ "internalType": "string", "name": "key", "type": "string" }],
     "name": "collectionProperty",
     "outputs": [{ "internalType": "bytes", "name": "", "type": "bytes" }],
@@ -560,5 +569,14 @@
     "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
     "stateMutability": "view",
     "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "user", "type": "uint256" }
+    ],
+    "name": "verifyOwnerOrAdminSubstrate",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
   }
 ]