EVM-Compatible chain

Janak9955

1. When a user initiates a transaction on Unisat, Unist first sends a transaction request to Particle Chain through the Particle SDK, which then generates an EVM Smart Contract address corresponding to the Unisat address. Subsequently, this AA address initiates a transaction in the EVM environment and requests a response from MerlinChain.

2. Upon initial connection, users need to bridge a portion of their assets from the BTC chain to the AA address on Particle Chain. This address has the function of a Paymaster, enabling it to execute subsequent interactive operations such as delegated transactions, gas payments, and multisignature management.

3. After Particle completes a series of SDK interactive operation basic connections, user transactions are sent to Particle Chain, which verifies and executes them, coordinating with MerlinChain. When Merlin receives a new transaction request, it directly resolves and verifies the Bitcoin wallet signature through the AA contract to complete the transaction.

After completing the adaptation and processing of wallet abstraction, Particle also plays a role in asset migration and processing on MerlinChain. For example, when users transfer assets to MerlinChain via Unisat, they are stored in custody addresses provided by the Cobo platform. Particle immediately triggers the generation of corresponding Wrap assets in response and creates an AA address for multisignature and delegated transactions. Particle serves as a crucial channel for BTC native assets entering MerlinChain. This implies:

1. ParticleChain will retain most of the Wrap versions of the native assets migrated from the BTC chain. It can be considered that Particle Chain will manage the circulation of nearly $4 billion worth of TVL assets on MerlinChain, assisting MerlinChain in having clear asset circulation management capabilities.

2. For other assets such as ETH, USDT, and USDC flowing into MerlinChain under other EVM-Compatible environments, Particle will similarly perform corresponding asset circulation accounting management based on its AA account abstraction feature to support various DeFi protocol applications such as swaps, staking, and restaking on MerlinChain.

3. The off-chain indexer system corresponding to Merlin assets is also crucial as a core tool for managing transaction data on the chain. When Merlin assets flow into the layer 2 EVM environment, the indexer needs to accurately record, track, and manage the circulation of these assets, especially when coordinating ledger differences between different indexes.

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