patches regex for snippet replacement, updates llms

Author: dawnkelly09

llms-files/llms-basics.txt

@@ -7042,14 +7042,14 @@ categories: Basics, Polkadot Protocol
 
 ## Introduction
 
-Asset Hub natively uses Polkadot's 32-byte account system but provides interoperability with Ethereum's 20-byte addresses through an automatic conversion system. When interacting with smart contracts:
+Asset Hub natively utilizes Polkadot's 32-byte account system while providing interoperability with Ethereum's 20-byte addresses through an automatic conversion system. When interacting with smart contracts:
 
-- Ethereum-compatible wallets (like MetaMask) can use their familiar 20-byte addresses
-- Polkadot accounts continue using their native 32-byte format
+- Ethereum-compatible wallets (like MetaMask) can use their familiar 20-byte addresses.
+- Polkadot accounts continue using their native 32-byte format.
 - The Asset Hub chain automatically handles conversion between the two formats behind the scenes:
 
-    - 20-byte Ethereum addresses are padded with `0xEE` bytes to create valid 32-byte Polkadot accounts
-    - 32-byte Polkadot accounts can optionally register a mapping to a 20-byte address for Ethereum compatibility
+    - 20-byte Ethereum addresses are padded with `0xEE` bytes to create valid 32-byte Polkadot accounts.
+    - 32-byte Polkadot accounts can optionally register a mapping to a 20-byte address for Ethereum compatibility.
 
 This dual-format approach enables Asset Hub to maintain compatibility with Ethereum tooling while fully integrating with the Polkadot ecosystem.
 
@@ -7064,58 +7064,65 @@ The platform handles two distinct address formats:
 
 The [`AccountId32Mapper`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/struct.AccountId32Mapper.html){target=\_blank} implementation in [`pallet_revive`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/index.html){target=\_blank} handles the core address conversion logic. For converting a 20-byte Ethereum address to a 32-byte Polkadot address, the pallet uses a simple concatenation approach:
 
-- [**Core mechanism**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} - takes a 20-byte Ethereum address and extends it to 32 bytes by adding twelve `0xEE` bytes at the end. The key benefits of this approach are:
-    - Able to fully revert, allowing a smooth transition back to the Ethereum format
-    - Provides clear identification of Ethereum-controlled accounts through the `0xEE` suffix pattern
-    - Maintains cryptographic security with a `2^96` difficulty for pattern reproduction
+- [**Core mechanism**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} : takes a 20-byte Ethereum address and extends it to 32 bytes by adding twelve `0xEE` bytes at the end. The key benefits of this approach are:
+    - Able to fully revert, allowing a smooth transition back to the Ethereum format.
+    - Provides clear identification of Ethereum-controlled accounts through the `0xEE` suffix pattern.
+    - Maintains cryptographic security with a `2^96` difficulty for pattern reproduction.
 
 ### Polkadot to Ethereum Mapping
 
-The conversion from 32-byte to 20-byte addresses is handled through a stateful mapping system implemented in the [`AddressMapper`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html){target=\_blank} trait. The core functionality includes:
+The conversion from 32-byte Polkadot accounts to 20-byte Ethereum addresses is more complex than the reverse direction due to the lossy nature of the conversion. The [`AccountId32Mapper`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/struct.AccountId32Mapper.html){target=\_blank} handles this through two distinct approaches:
 
-- Address conversion in both directions
-- Account registration and management
-- Mapping status verification
+- **For Ethereum-derived accounts** : The system uses the [`is_eth_derived`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/fn.is_eth_derived.html){target=\_blank} function to detect accounts that were originally Ethereum addresses (identified by the `0xEE` suffix pattern). For these accounts, the conversion strips the last 12 bytes to recover the original 20-byte Ethereum address.
+
+- **For native Polkadot accounts** : Since these accounts utilize the whole 32-byte space and weren't derived from Ethereum addresses, direct truncation would result in lost information. Instead, the system:
+    1. Hashes the entire 32-byte account using Keccak-256.
+    2. Takes the last 20 bytes of the hash to create the Ethereum address.
+    3. This ensures a deterministic mapping while avoiding simple truncation.
+
+The conversion process is implemented through the [`to_address`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_address){target=\_blank} function, which automatically detects the account type and applies the appropriate conversion method.
+
+**Stateful Mapping for Reversibility** : Since the conversion from 32-byte to 20-byte addresses is inherently lossy, the system provides an optional stateful mapping through the [`OriginalAccount`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/type.OriginalAccount.html){target=\_blank} storage. When a Polkadot account registers a mapping (via the [`map`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.map){target=\_blank} function), the system stores the original 32-byte account ID, enabling the [`to_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_account_id){target=\_blank} function to recover the exact original account rather than falling back to a default conversion.
 
 ## Account Registration
 
 The registration process is implemented through the [`map`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.map){target=\_blank} function. This process involves:
 
-- Checking if the account is already mapped
-- Calculating and collecting required deposits based on data size
-- Storing the address suffix for future reference
-- Managing the currency holds for security
+- Checking if the account is already mapped.
+- Calculating and collecting required deposits based on data size.
+- Storing the address suffix for future reference.
+- Managing the currency holds for security.
 
 ## Fallback Accounts
 
 The fallback mechanism is integrated into the [`to_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_account_id){target=\_blank} function. It provides a safety net for address conversion by:
 
-- First, attempting to retrieve stored mapping data
-- Falling back to the default conversion method if no mapping exists
-- Maintaining consistency in address representation
+- First, attempting to retrieve stored mapping data.
+- Falling back to the default conversion method if no mapping exists.
+- Maintaining consistency in address representation.
 
 ## Contract Address Generation
 
 The system supports two methods for generating contract addresses:
 
 - [**CREATE1 method**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/fn.create1.html){target=\_blank}:
 
-    - Uses the deployer address and nonce
-    - Generates deterministic addresses for standard contract deployment
+    - Uses the deployer address and nonce.
+    - Generates deterministic addresses for standard contract deployment.
 
 - [**CREATE2 method**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/fn.create2.html){target=\_blank}:
 
-    - Uses the deployer address, initialization code, input data, and salt
-    - Enables predictable address generation for advanced use cases
+    - Uses the deployer address, initialization code, input data, and salt.
+    - Enables predictable address generation for advanced use cases.
 
 ## Security Considerations
 
 The address mapping system maintains security through several design choices evident in the implementation:
 
-- The stateless mapping requires no privileged operations, as shown in the [`to_fallback_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} implementation
-- The stateful mapping requires a deposit managed through the [`Currency`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/pallet/trait.Config.html#associatedtype.Currency){target=\_blank} trait
-- Mapping operations are protected against common errors through explicit checks
-- The system prevents double-mapping through the [`ensure!(!Self::is_mapped(account_id))`](https://github.com/paritytech/polkadot-sdk/blob/stable2412/substrate/frame/revive/src/address.rs#L125){target=\_blank} check
+- The stateless mapping requires no privileged operations, as shown in the [`to_fallback_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} implementation.
+- The stateful mapping requires a deposit managed through the [`Currency`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/pallet/trait.Config.html#associatedtype.Currency){target=\_blank} trait.
+- Mapping operations are protected against common errors through explicit checks.
+- The system prevents double-mapping through the [`ensure!(!Self::is_mapped(account_id))`](https://github.com/paritytech/polkadot-sdk/blob/stable2412/substrate/frame/revive/src/address.rs#L125){target=\_blank} check.
 
 All source code references are from the [`address.rs`](https://github.com/paritytech/polkadot-sdk/blob/stable2412/substrate/frame/revive/src/address.rs){target=\_blank} file in the Revive pallet of the Polkadot SDK repository.
 --- END CONTENT ---

llms-files/llms-dapps.txt

@@ -11624,14 +11624,14 @@ categories: Basics, Polkadot Protocol
 
 ## Introduction
 
-Asset Hub natively uses Polkadot's 32-byte account system but provides interoperability with Ethereum's 20-byte addresses through an automatic conversion system. When interacting with smart contracts:
+Asset Hub natively utilizes Polkadot's 32-byte account system while providing interoperability with Ethereum's 20-byte addresses through an automatic conversion system. When interacting with smart contracts:
 
-- Ethereum-compatible wallets (like MetaMask) can use their familiar 20-byte addresses
-- Polkadot accounts continue using their native 32-byte format
+- Ethereum-compatible wallets (like MetaMask) can use their familiar 20-byte addresses.
+- Polkadot accounts continue using their native 32-byte format.
 - The Asset Hub chain automatically handles conversion between the two formats behind the scenes:
 
-    - 20-byte Ethereum addresses are padded with `0xEE` bytes to create valid 32-byte Polkadot accounts
-    - 32-byte Polkadot accounts can optionally register a mapping to a 20-byte address for Ethereum compatibility
+    - 20-byte Ethereum addresses are padded with `0xEE` bytes to create valid 32-byte Polkadot accounts.
+    - 32-byte Polkadot accounts can optionally register a mapping to a 20-byte address for Ethereum compatibility.
 
 This dual-format approach enables Asset Hub to maintain compatibility with Ethereum tooling while fully integrating with the Polkadot ecosystem.
 
@@ -11646,58 +11646,65 @@ The platform handles two distinct address formats:
 
 The [`AccountId32Mapper`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/struct.AccountId32Mapper.html){target=\_blank} implementation in [`pallet_revive`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/index.html){target=\_blank} handles the core address conversion logic. For converting a 20-byte Ethereum address to a 32-byte Polkadot address, the pallet uses a simple concatenation approach:
 
-- [**Core mechanism**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} - takes a 20-byte Ethereum address and extends it to 32 bytes by adding twelve `0xEE` bytes at the end. The key benefits of this approach are:
-    - Able to fully revert, allowing a smooth transition back to the Ethereum format
-    - Provides clear identification of Ethereum-controlled accounts through the `0xEE` suffix pattern
-    - Maintains cryptographic security with a `2^96` difficulty for pattern reproduction
+- [**Core mechanism**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} : takes a 20-byte Ethereum address and extends it to 32 bytes by adding twelve `0xEE` bytes at the end. The key benefits of this approach are:
+    - Able to fully revert, allowing a smooth transition back to the Ethereum format.
+    - Provides clear identification of Ethereum-controlled accounts through the `0xEE` suffix pattern.
+    - Maintains cryptographic security with a `2^96` difficulty for pattern reproduction.
 
 ### Polkadot to Ethereum Mapping
 
-The conversion from 32-byte to 20-byte addresses is handled through a stateful mapping system implemented in the [`AddressMapper`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html){target=\_blank} trait. The core functionality includes:
+The conversion from 32-byte Polkadot accounts to 20-byte Ethereum addresses is more complex than the reverse direction due to the lossy nature of the conversion. The [`AccountId32Mapper`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/struct.AccountId32Mapper.html){target=\_blank} handles this through two distinct approaches:
 
-- Address conversion in both directions
-- Account registration and management
-- Mapping status verification
+- **For Ethereum-derived accounts** : The system uses the [`is_eth_derived`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/fn.is_eth_derived.html){target=\_blank} function to detect accounts that were originally Ethereum addresses (identified by the `0xEE` suffix pattern). For these accounts, the conversion strips the last 12 bytes to recover the original 20-byte Ethereum address.
+
+- **For native Polkadot accounts** : Since these accounts utilize the whole 32-byte space and weren't derived from Ethereum addresses, direct truncation would result in lost information. Instead, the system:
+    1. Hashes the entire 32-byte account using Keccak-256.
+    2. Takes the last 20 bytes of the hash to create the Ethereum address.
+    3. This ensures a deterministic mapping while avoiding simple truncation.
+
+The conversion process is implemented through the [`to_address`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_address){target=\_blank} function, which automatically detects the account type and applies the appropriate conversion method.
+
+**Stateful Mapping for Reversibility** : Since the conversion from 32-byte to 20-byte addresses is inherently lossy, the system provides an optional stateful mapping through the [`OriginalAccount`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/type.OriginalAccount.html){target=\_blank} storage. When a Polkadot account registers a mapping (via the [`map`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.map){target=\_blank} function), the system stores the original 32-byte account ID, enabling the [`to_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_account_id){target=\_blank} function to recover the exact original account rather than falling back to a default conversion.
 
 ## Account Registration
 
 The registration process is implemented through the [`map`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.map){target=\_blank} function. This process involves:
 
-- Checking if the account is already mapped
-- Calculating and collecting required deposits based on data size
-- Storing the address suffix for future reference
-- Managing the currency holds for security
+- Checking if the account is already mapped.
+- Calculating and collecting required deposits based on data size.
+- Storing the address suffix for future reference.
+- Managing the currency holds for security.
 
 ## Fallback Accounts
 
 The fallback mechanism is integrated into the [`to_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_account_id){target=\_blank} function. It provides a safety net for address conversion by:
 
-- First, attempting to retrieve stored mapping data
-- Falling back to the default conversion method if no mapping exists
-- Maintaining consistency in address representation
+- First, attempting to retrieve stored mapping data.
+- Falling back to the default conversion method if no mapping exists.
+- Maintaining consistency in address representation.
 
 ## Contract Address Generation
 
 The system supports two methods for generating contract addresses:
 
 - [**CREATE1 method**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/fn.create1.html){target=\_blank}:
 
-    - Uses the deployer address and nonce
-    - Generates deterministic addresses for standard contract deployment
+    - Uses the deployer address and nonce.
+    - Generates deterministic addresses for standard contract deployment.
 
 - [**CREATE2 method**](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/fn.create2.html){target=\_blank}:
 
-    - Uses the deployer address, initialization code, input data, and salt
-    - Enables predictable address generation for advanced use cases
+    - Uses the deployer address, initialization code, input data, and salt.
+    - Enables predictable address generation for advanced use cases.
 
 ## Security Considerations
 
 The address mapping system maintains security through several design choices evident in the implementation:
 
-- The stateless mapping requires no privileged operations, as shown in the [`to_fallback_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} implementation
-- The stateful mapping requires a deposit managed through the [`Currency`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/pallet/trait.Config.html#associatedtype.Currency){target=\_blank} trait
-- Mapping operations are protected against common errors through explicit checks
-- The system prevents double-mapping through the [`ensure!(!Self::is_mapped(account_id))`](https://github.com/paritytech/polkadot-sdk/blob/stable2412/substrate/frame/revive/src/address.rs#L125){target=\_blank} check
+- The stateless mapping requires no privileged operations, as shown in the [`to_fallback_account_id`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/trait.AddressMapper.html#tymethod.to_fallback_account_id){target=\_blank} implementation.
+- The stateful mapping requires a deposit managed through the [`Currency`](https://paritytech.github.io/polkadot-sdk/master/pallet_revive/pallet/trait.Config.html#associatedtype.Currency){target=\_blank} trait.
+- Mapping operations are protected against common errors through explicit checks.
+- The system prevents double-mapping through the [`ensure!(!Self::is_mapped(account_id))`](https://github.com/paritytech/polkadot-sdk/blob/stable2412/substrate/frame/revive/src/address.rs#L125){target=\_blank} check.
 
 All source code references are from the [`address.rs`](https://github.com/paritytech/polkadot-sdk/blob/stable2412/substrate/frame/revive/src/address.rs){target=\_blank} file in the Revive pallet of the Polkadot SDK repository.
 --- END CONTENT ---